https://transportecology.info/research
daily
0.75
2025-12-11
https://transportecology.info/research/shipping-and-biodiversity
monthly
0.5
2025-10-23
https://images.squarespace-cdn.com/content/v1/5e2574c3ee2964277b114f7c/0cedf2d9-8e9b-4611-a056-e060589d6e89/humpback-1132769_1280.jpg
Research Summaries - Navigating the Balance: Mapping Shipless, Preservation, and Mitigation Areas for Marine Biodiversity - Make it stand out
Image from Alan Bedding from Pixabay
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Research Summaries - Navigating the Balance: Mapping Shipless, Preservation, and Mitigation Areas for Marine Biodiversity - Make it stand out
Figure 1 – Map depicting the combined values of species richness and shipping density. The areas shaded white have relatively low shipping traffic and low species richness, and areas in brown have high shipping traffic and high species richness.
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Research Summaries - Navigating the Balance: Mapping Shipless, Preservation, and Mitigation Areas for Marine Biodiversity - Make it stand out
Figure 2 – Priority Preservation Areas (PPAs): locations with high species richness and low vessel density (shown in yellow); and Priority Management Areas (PMAs): locations with high species richness and high vessel density (shown in red).
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Research Summaries - Navigating the Balance: Mapping Shipless, Preservation, and Mitigation Areas for Marine Biodiversity - Make it stand out
Figure 3 – Shipless areas (shown in light blue) and larger (>100,000 ha) Marine Protected Areas (shown in green).
https://transportecology.info/research/reptiles-and-amphibian-collisions-india
monthly
0.5
2025-12-11
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Research Summaries - Roadkill study demonstrates urgent necessity for safeguards - This article is re-published from Monagaby.
https://images.squarespace-cdn.com/content/v1/5e2574c3ee2964277b114f7c/5776c9f7-2a4a-44e8-a63b-287b4f50590d/snake.png
Research Summaries - Roadkill study demonstrates urgent necessity for safeguards - Make it stand out
A Beddome’s keelback snake after a vehicular collision. Image by Seshadri K.S. via Wikimedia Commons (CC BY-SA 4.0).
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Research Summaries - Roadkill study demonstrates urgent necessity for safeguards - Make it stand out
Whatever it is, the way you tell your story online can make all the difference.
https://images.squarespace-cdn.com/content/v1/5e2574c3ee2964277b114f7c/ce24109b-0dbc-4204-9592-efa82ff8bd21/2025_114_India_Roadkills_v2_Chart-1200x960.jpg
Research Summaries - Roadkill study demonstrates urgent necessity for safeguards - Make it stand out
Whatever it is, the way you tell your story online can make all the difference.
https://images.squarespace-cdn.com/content/v1/5e2574c3ee2964277b114f7c/afa99f69-d0e2-4c5d-85f9-07fe1ed71393/Indian_Garden_Lizard_Calotes_versicolor_in_AP_W_IMG_9921.jpg
Research Summaries - Roadkill study demonstrates urgent necessity for safeguards - Make it stand out
The Indian garden lizard saw among the highest mortalities recorded due to collisions with vehicles. Image by J.M. Garg via Wikimedia Commons (CC BY 3.0).
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Research Summaries - Roadkill study demonstrates urgent necessity for safeguards - Make it stand out
An elevated stretch of the NH 44 running through Pench Tiger Reserve. Image by HemaChandra88 via Wikimedia Commons (CC BY-SA 4.0).
https://transportecology.info/research/migratory-movements-bison
monthly
0.5
2025-12-11
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Research Summaries - Where bison meet traffic: Understanding migratory movements of bison along roadways and hotspots for Yellowstone wildlife activity - Make it stand out
All image credits to Jackson Doyel
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Research Summaries - Where bison meet traffic: Understanding migratory movements of bison along roadways and hotspots for Yellowstone wildlife activity - Make it stand out
Figure 1. Map of the Hebgen Lake Basin Area showing Highway US-191 in relation to YNP, the town of West Yellowstone, MT, and the three riparian corridors found to be critical habitat for wildlife activity in the area.
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Research Summaries - Where bison meet traffic: Understanding migratory movements of bison along roadways and hotspots for Yellowstone wildlife activity - Make it stand out
Figure 2. Bison activity peaks and the locations of riparian corridors along US-191 road markers from 2007-2024, showing that bison activity was centered around riparian corridors, the majority of which centered around the Madison River. Peaks in bison activity also correlated with bison-vehicle collision hotspots marked in dark red.
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Research Summaries - Where bison meet traffic: Understanding migratory movements of bison along roadways and hotspots for Yellowstone wildlife activity - Make it stand out
Figure 3. Moose activity peaks and the locations of riparian corridors along US-191 road markers from 2007-2024, showing that moose activity peaks are mainly centered around the Madison River.
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Research Summaries - Where bison meet traffic: Understanding migratory movements of bison along roadways and hotspots for Yellowstone wildlife activity - Make it stand out
Figure 4. Averaging of bison movement data, showing that most of the animals cross US-191 perpendicularly rather than follow it in parallel. The thickness of the lines shows the density of animals represented by them. The position of the arrows is the mean of where the animal crossing activities took place most frequently. Hebgen Lake freezes over each winter, allowing animals to move along it with ease.
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Research Summaries - Where bison meet traffic: Understanding migratory movements of bison along roadways and hotspots for Yellowstone wildlife activity - Make it stand out
Whatever it is, the way you tell your story online can make all the difference.
https://transportecology.info/research/corridor-validation-best-practices
monthly
0.5
2025-12-11
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Research Summaries - Establishing wildlife corridors is a key conservation tool in many landscapes - Make it stand out
Photo credit: NPS photo
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Research Summaries - Establishing wildlife corridors is a key conservation tool in many landscapes - Make it stand out
Figure 1. Output of a corridor model: Santa Monica-Sierra Madre Linkage in southern California (from Penrod et al. 2006). This corridor model is the union of least-cost corridors for mountain lions, mule deer, and badgers. It has informed land use plans, land acquisition, and management actions. Despite being in the vicinity of the Los Angeles Metropolitan Area the corridor is still a functional connection between the protected areas on either end.
https://transportecology.info/research/roadkill-cascading-effects-food-webs
monthly
0.5
2025-12-11
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Research Summaries - The domino effect of roads on biodiversity: How the impacts of wildlife-vehicle collisions propagate through food webs - Make it stand out
Figure 1. Representation of the simplification of food webs in response to increasing road density.
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Research Summaries - The domino effect of roads on biodiversity: How the impacts of wildlife-vehicle collisions propagate through food webs - Make it stand out
A prey (wild rabbit), a top predator (lynx) and a top predator with a prey (Eurasian eagle-owl). Photo credits: Joaquim Pedro Ferreira
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Research Summaries - The domino effect of roads on biodiversity: How the impacts of wildlife-vehicle collisions propagate through food webs - Make it stand out
Figure 2. The cascading effects of road mortality in Europe. The top panel depicts a schematic representation where vulnerable populations are shown by red dots, and these vulnerable populations are lost in areas with higher road density. The middle panel shows a food web example before and after the extinctions induced by high road density. The map below shows the number of potentially lost trophic interactions due to roadkill, typically corresponding to areas with higher road density.
https://transportecology.info/research/where-and-when-dvc-occur-inform-mitigation
monthly
0.5
2025-12-11
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Research Summaries - Understanding where and when collisions with roe deer and vehicles occur can help to inform mitigation planning - Make it stand out
Photo credit: Forstliche Versuchs- und Forschungsanstalt Baden-Württemberg
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Research Summaries - Understanding where and when collisions with roe deer and vehicles occur can help to inform mitigation planning - Make it stand out
Figure 1: Predicted influence of the probability of wildlife-vehicle collisions (WVC) occurrence on the number of crossings per day in roe deer per sex and season. The 95% confidence interval is indicated in coloured shading.
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Research Summaries - Understanding where and when collisions with roe deer and vehicles occur can help to inform mitigation planning - Make it stand out
Figure 2: Risk of collision with roe deer at different times of year with increasing road density (left) and increasing cover of broad-leafed deciduous forest (right) within a radius of 200 m of each registered wildlife-vehicle collisions (WVC).
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Research Summaries - Understanding where and when collisions with roe deer and vehicles occur can help to inform mitigation planning - Make it stand out
Figure 3: Predicted rate of WVC with roe deer on different types of roads in Germany.
https://transportecology.info/research/power-lines-killing-birds
monthly
0.5
2025-12-11
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Research Summaries - Overhead power lines kill millions of birds a year. Scientists found a way to help cut the devastating toll - This article is re-published from The Conversation.
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Research Summaries - Overhead power lines kill millions of birds a year. Scientists found a way to help cut the devastating toll - Make it stand out
© Wolfram Steinberg/picture alliance via Getty Images
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Research Summaries - Overhead power lines kill millions of birds a year. Scientists found a way to help cut the devastating toll - Make it stand out
GPS information can show how birds behave around power lines. © Julian Stratenschulte/picture alliance via Getty Images
https://transportecology.info/research/masaimarafencing
monthly
0.5
2025-12-11
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Research Summaries - Restoring the collapsed iconic wildebeest migration in Kenya’s Masai Mara Ecosystem - Make it stand out
Wildebeest crossing Mara River. Photo credit: Sabyasachi Mukhopadhyay
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Research Summaries - Restoring the collapsed iconic wildebeest migration in Kenya’s Masai Mara Ecosystem - Make it stand out
Wildebeest entangled in livestock fence. Photo credit: Daniel Sopia, Masai Mara Wildlife Conservancies Association
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Research Summaries - Restoring the collapsed iconic wildebeest migration in Kenya’s Masai Mara Ecosystem - Make it stand out
Map of the Greater Mara Ecosystem with the Masai Mara National Reserve (solid grey) and the outer Mara conservancies (black outline) showing broad wildebeest migratory movement (light green) between the Mara and the Loita Plains. The footprint of fencing is shown (light grey lines), and the historic movement corridors (green arrows) suggested for restoration, which were derived by tracking wildlife movements.
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Research Summaries - Restoring the collapsed iconic wildebeest migration in Kenya’s Masai Mara Ecosystem - Make it stand out
Photo credit: Joseph Ogutu
https://transportecology.info/research/future-wildlife-crossings
monthly
0.5
2025-12-11
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Research Summaries - Incorporating climatic considerations into wildlife crossing planning is essential for the future - Make it stand out
Photo credit: Jerry Neal, Colorado Parks & Wildlife
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Research Summaries - Incorporating climatic considerations into wildlife crossing planning is essential for the future - Make it stand out
Figure 1. Change in elk connectivity during migration between present day and future timepoints across the study area in southwestern Colorado. Connectivity along a section of Highway 160 (box in a) is shown under present (b) and future (c) conditions. Circles represent potential crossing locations identified in the Western Slope Wildlife Prioritization Study, with filled circles denoting those locations ranking in the top ten for highest connectivity value under present (pink) or future (yellow) conditions or in both present and future (turquoise).
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Research Summaries - Incorporating climatic considerations into wildlife crossing planning is essential for the future - Make it stand out
Figure 2. A bottomless culvert over a brook in Massachusetts that replaced a flat-bottomed culvert perched above the water, inhibiting fish and amphibian passage (Photo credit: Massachusetts Division of Ecological Restoration).
https://transportecology.info/research/road-related-risk-assessment
monthly
0.5
2025-12-11
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Research Summaries - A simple framework for large-scale road-related risk assessments - Make it stand out
Spatial distribution of susceptibility and exposure (road density) at global scale.
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Research Summaries - A simple framework for large-scale road-related risk assessments - Make it stand out
Smooth-coated otter - a species at high risk due to declining populations and because it inhabits areas with high road density. © Stock images.
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Research Summaries - A simple framework for large-scale road-related risk assessments - Make it stand out
Wolverine - a species inhabiting largely road-free landscapes that should remain protected. © Heeres Wildlife Photography.
https://transportecology.info/research/global-roadkill-data-initiative
monthly
0.5
2025-12-11
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Research Summaries - “Global Roadkill Data Initiative” provides access to the largest wildlife mortality database
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Research Summaries - “Global Roadkill Data Initiative” provides access to the largest wildlife mortality database - Make it stand out
Figure 2. Giant anteater ©Andy Jones; common fire salamander ©Frank Vassen; European rabbit ©caiden_b.
https://transportecology.info/research/toll-of-the-automobile
monthly
0.5
2025-12-11
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Research Summaries - The toll of the automobile: A landmark study in road ecology
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Research Summaries - The toll of the automobile: A landmark study in road ecology - Make it stand out
Red-headed woodpecker. Licensed under CC BY 4.0
https://transportecology.info/research/batactivity-traffic
monthly
0.5
2025-09-08
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Research Summaries - More night-time traffic equals less bat activity
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Research Summaries - More night-time traffic equals less bat activity - Make it stand out
Figure 1. New Zealand’s long-tailed bat, Chalinolobus tuberculatus, is an insect-eating Vespertilionid that often flies along forest edges so is sometimes seen flying along roads. Photo credit: Colin O’Donnell Department of Conservation.
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Research Summaries - More night-time traffic equals less bat activity - Make it stand out
Figure 2. We recorded bat calls using detectors at 57 traffic monitoring sites throughout Aotearoa New Zealand and calculated overnight traffic volumes.
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Research Summaries - More night-time traffic equals less bat activity - Make it stand out
Figure 3. We placed bat detectors next to and away from highways. Here they are called “distant” and “forest” respectively.
https://transportecology.info/research/effectivness-wildlifecrossingstructures
monthly
0.5
2025-09-08
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Research Summaries - How well do wildlife crossing structures help animals across roads?
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Research Summaries - How well do wildlife crossing structures help animals across roads? - Make it stand out
Figure 1. Animals using wildlife crossing structures. Clockwise from top left: roe deer and calves, badger, squirrel glider, European hare. Images: Edgar van der Grift and Kylie Soanes
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Research Summaries - How well do wildlife crossing structures help animals across roads? - Make it stand out
Figure 2. Overview of the four evaluation types and how they were categorised.
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Research Summaries - How well do wildlife crossing structures help animals across roads? - Make it stand out
Figure 3. For each of the 313 studies, we counted the number of times a specific outcome (e.g. no net loss, some loss, or no movement) was reported for each of the ten species groups pictured (insects to bats). Dashes indicate no data were available.
https://transportecology.info/research/effectivness-addws-in-sweden
monthly
0.5
2025-09-08
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Research Summaries - Animal Detection and Driver Warning Systems – a potential solution for wildlife-vehicle collisions & loss of landscape connectivity on secondary roads
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Research Summaries - Animal Detection and Driver Warning Systems – a potential solution for wildlife-vehicle collisions & loss of landscape connectivity on secondary roads
Figure 1. Top: Location of the at-grade fauna passage in in Skåne County, southern Sweden. Road 108 is shown in the black box, and the fauna passage is in the southern parts of this road. The three unmitigated reference road sections are shown in blue ovals (Basemap: OpenStreetMaps). The schematic below the localized map shows a technical drawing of the at-grade fauna passage. Bottom left: Screenshot from a video of roe deer within the fauna passage. Bottom right: The warning sign displayed to drivers when an animal was within the at-grade fauna passage.
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Research Summaries - Animal Detection and Driver Warning Systems – a potential solution for wildlife-vehicle collisions & loss of landscape connectivity on secondary roads - Make it stand out
Figure 2. Wild boar quickly crossing through the at-grade fauna passage as a vehicle approaches. Video: Trafikverket
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Research Summaries - Animal Detection and Driver Warning Systems – a potential solution for wildlife-vehicle collisions & loss of landscape connectivity on secondary roads - Make it stand out
Figure 3. The number of wildlife vehicle collisions, summarized per quarter (i.e., Q1: January – March; Q2: April – June; Q3: July – September; Q4: October – December), from 2015 – 2021. The solid black line represents the road segment corresponding to the at-grade fauna passage. The dashed grey lines represent the three unmitigated reference sites that are similar in length, traffic volume and posted speed limit.
https://transportecology.info/research/ideal-underpass-for-wild-animals
monthly
0.5
2023-11-27
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Research Summaries - In search of the ideal underpass for wild animals - Make it stand out
Whatever it is, the way you tell your story online can make all the difference.
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Research Summaries - In search of the ideal underpass for wild animals - Make it stand out
Figure 1. Our study area was along highway 101 (shown in red) on the Central Coast of California. This area was identified as an important movement corridor for large mammals like pumas.
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Research Summaries - In search of the ideal underpass for wild animals - Make it stand out
Figure 2. Average number of detections and several of our ‘greatest hits’ from undercrossings. Note how open (b) is compared to the 4x8 foot culverts the gray foxes (d) were detected in.
https://transportecology.info/research/priority-regions-species-roads-latinamerica
monthly
0.5
2023-11-07
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Research Summaries - Priority regions and species to study and protect from road impacts in Latin America - Make it stand out
Sloths are highly vulnerable to road impacts in Latin America. Photo credit: Andrés Reinoso Morales
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Research Summaries - Priority regions and species to study and protect from road impacts in Latin America - Make it stand out
Figure 1. Top panel shows our approach to identify priority areas for conservation and research. Middle panel shows bivariate maps (a technique used to represent two variables simultaneously) combining vulnerability to roadkill and road density in Latin America. Bottom panel shows areas identified as priorities for conservation and research for birds, mammals, and birds and mammals.
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Research Summaries - Priority regions and species to study and protect from road impacts in Latin America - Make it stand out
Figure 2. Priority taxa for conservation and research. T=number of threatened species, DD=Number of species categorized as Data Deficient, NoT=Number of species not classified as T or DD, %=percentage of species reported as roadkill.
https://transportecology.info/research/assessing-impacts-wvcs-brazil-roads
monthly
0.5
2023-10-24
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Research Summaries - More than 10,000 tons of wild mammals are killed on Brazilian roads yearly: Assessing the impacts and conservation implications of wildlife-vehicle collisions - Make it stand out
Brazilian federal road (BR-354) bisects Atlantic Forest montane remnants, a hotspot for biodiversity conservation. Photo by Fernando Pinto.
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Research Summaries - More than 10,000 tons of wild mammals are killed on Brazilian roads yearly: Assessing the impacts and conservation implications of wildlife-vehicle collisions - Make it stand out
Figure 1. The Crab-eating fox is widespread in South America, relatively common throughout its range, and classified as Least Concern according to the IUCN Red List. The species occupies most habitats including savanna, cerrado, forests and also anthropogenic landscapes like deforested and urban areas. No precise estimates of population sizes are available, but populations generally are considered stable. (Photo by Fernando Pinto)
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Research Summaries - More than 10,000 tons of wild mammals are killed on Brazilian roads yearly: Assessing the impacts and conservation implications of wildlife-vehicle collisions - Make it stand out
Figure 2. The conservation status of 62 species of medium- and large-sized road-killed mammals in Brazil (upper panel) and population trend (lower panel). Data are percentage of species in Brazil and arranged in taxonomic groups. The number of species recorded as roadkill in each taxonomic group is given in parentheses. The direction of population trend and the conservation status is according to the IUCN Red List – VU = vulnerable to extinction, NT = near threatened, LC = least concern, DD = data deficient.
https://transportecology.info/research/leadbeater-possum-uses-canopy-bridges
monthly
0.5
2023-10-16
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Research Summaries - Critically endangered possum uses two different types of canopy bridges to cross forestry roads - Make it stand out
The Leadbeater’s possum in south-eastern Australia is critically endangered. Photo: Dan Harley
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Research Summaries - Critically endangered possum uses two different types of canopy bridges to cross forestry roads
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Research Summaries - Critically endangered possum uses two different types of canopy bridges to cross forestry roads
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Research Summaries - Critically endangered possum uses two different types of canopy bridges to cross forestry roads - Make it stand out
Figure 2. Photos of the study site and bridge designs: a) the narrow road with ladder bridge (foreground) and single-rope bridge (background) visible, and view of a single-rope bridge (b) and ladder rope bridge (c) from below.
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Research Summaries - Critically endangered possum uses two different types of canopy bridges to cross forestry roads - Make it stand out
Figure 3. Arboreal mammals crossing the rope bridges including a feather tail glider (left), Leadbeater’s possum (centre) and mountain brushtail possum (right).
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Research Summaries - Critically endangered possum uses two different types of canopy bridges to cross forestry roads - Make it stand out
Figure 4. Mean number of crossings and standard error for arboreal mammals at each bridge design by eastern ringtail possums (RT), agile antechinus (AA) mountain brushtail possum (BT) and Leadbeater’s possum (LBP). The Sugar Glider and Feathertail Glider were also detected using the bridges at very low rates and are not shown in this graph.
https://transportecology.info/research/overcome-barriers-to-fauna-sensitive-design
monthly
0.5
2023-09-19
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Research Summaries - Barriers to fauna-sensitive road design and how we can overcome them - Make it stand out
Whatever it is, the way you tell your story online can make all the difference.
https://transportecology.info/research/roadkill-vehicle-collisions-may-be-threatening-the-survival-of-some-mammal-populations
monthly
0.5
2023-08-22
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Research Summaries - Roadkill: vehicle collisions may be threatening the survival of some mammal populations - Make it stand out
An elk crossing a road in Colorado, USA. Rolf Nussbaumer Photography / Alamy Stock Photo
https://transportecology.info/research/cost-effective-landscape-connectivity-eias
monthly
0.5
2023-07-26
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Research Summaries - A cost-effective approach to incorporate landscape connectivity in Environmental Impact Assessments - Make it stand out
Figure 1 - Flow chart of the proposed framework. (Click to open as Pdf)
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Research Summaries - A cost-effective approach to incorporate landscape connectivity in Environmental Impact Assessments - Make it stand out
Figure 2 - Landscape and road from the case study in Guyana
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Research Summaries - A cost-effective approach to incorporate landscape connectivity in Environmental Impact Assessments - Make it stand out
Figure 3 - The ocelot (left) is a “speeder”, most likely to become roadkill with high traffic volume and/or speed. The giant anteater (right) is a “non-responder”, an easy victim to road kill even with low traffic volume or speed. Both are “structural generalists”: as long as the bridge is within their movement paths and high enough to easily pass under, they will use it.
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Research Summaries - A cost-effective approach to incorporate landscape connectivity in Environmental Impact Assessments - Make it stand out
Figure 4 - The combined species connectivity model indicates important movement areas for species and their intersections with roads, where measures must be put in place to ensure their safe crossing. If bridges or culverts exist or are planned at these locations, they can be fitted to the species’ needs. If there are no structures already proposed, they can then be added.
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Research Summaries - A cost-effective approach to incorporate landscape connectivity in Environmental Impact Assessments - Make it stand out
Figure 5 – Bridges at priority sites are evaluated based on the structural needs of the species. Left: priority site for savannah deer crossing, where we recommended a higher and longer bridge to facilitate their movement. Right: priority site for most species in our study. It was well-built: sufficient height for all species, vegetation cover for smaller species and open field of view for others, and long enough to permit free water flow alongside dry area for terrestrial species.
https://transportecology.info/research/bumblebee-queen-road-mortality
monthly
0.5
2024-12-06
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Research Summaries - Mortality of bumblebee queens increases with traffic volume - Make it stand out
Whatever it is, the way you tell your story online can make all the difference.
https://transportecology.info/research/landscape-roadkill-planning-mitigation
monthly
0.5
2024-12-06
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Research Summaries - Filling knowledge gaps at the landscape level in planning roadkill mitigation measures may offer optimal cost-efficiency solutions for multiple species and taxa - Make it stand out
Figure 1. The framework used to collect and calculate remotely sensed habitat metrics.
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Research Summaries - Filling knowledge gaps at the landscape level in planning roadkill mitigation measures may offer optimal cost-efficiency solutions for multiple species and taxa - Make it stand out
Figure 2. Drainage culverts adapted to incorporate a dry ledge, facilitating wildlife movements during wet periods (LIFE LINES project).
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Research Summaries - Filling knowledge gaps at the landscape level in planning roadkill mitigation measures may offer optimal cost-efficiency solutions for multiple species and taxa - Make it stand out
Figure 3. Road planning units (RPUs) with the number of species subject to mortality risk, i.e. cumulated mortality risk (a), and frequency histograms indicating that few high-risk sites are able to better inform on mortality protection for multiple species (b). In sites that included all communities (c), the coefficient of variation (CV) of cumulated mortality risk indicates ‘acceptable’ (CV<30) uncertainty for sub-optimal sites (d). Darker areas correspond to higher cumulated mortality risk (dark violet).
https://transportecology.info/research/road-barriers-flower-visiting-insects
monthly
0.5
2024-12-06
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Research Summaries - Road verges are corridors and roads are barriers for the movements of flower-visiting insects - Make it stand out
Figure 1. Study design. The study consisted of four types of sites: low traffic intensity and low flowering plant diversity in the road verge (lower left), high traffic intensity and low flowering plant diversity in the road verge (lower right), low traffic intensity and high flowering plant diversity in the road verge (upper left), and high traffic intensity and high flowering plant diversity in the road verge (upper right). Sites with low flowering plant diversity were not completely devoid of flowers but were not as flower rich as the other type of sites. Traffic intensity varied between 100 and 6000 vehicles per day.
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Research Summaries - Road verges are corridors and roads are barriers for the movements of flower-visiting insects - Make it stand out
Figure 2. At one side of the road, fifteen flower heads of the species Scabiosa columbaria were marked with red fluorescent dye. As flower-visiting insects visited the marked flowers, some of the dye would attach to their body. If the same insects then visited the unmarked flowers placed in the vicinity, they would leave some of the dye behind which enabled us to track their movements.
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Research Summaries - Road verges are corridors and roads are barriers for the movements of flower-visiting insects - Make it stand out
Figure 3. On the other side of the road, fifteen flower heads were marked with blue fluorescent dye. Unmarked flower heads were examined for the presence of the dye using a UV-lamp in the laboratory.
https://transportecology.info/research/road-impacts-apex-predators
monthly
0.5
2024-12-06
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Research Summaries - Roads are a severe threat to apex predators across the globe - Make it stand out
Figure 1. Sloth bear in India. Photo by: Itxaso Quintana.
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Research Summaries - Roads are a severe threat to apex predators across the globe - Make it stand out
Figure 2. The risk to roads of the 36 apex predator species. Gauges indicate the risk value and bars indicate the standardized road density (red column), proportion of the species geographic distribution that is not formally protected (brown column), standardized number of threats identified by IUCN (blue column), and standardized average body mass of the predator species (orange column) (very large (>100 kg), large (25–100 kg), medium (15–25 kg), small (8–15 kg)). Source of predator silhouettes PhyloPic (http://phylopic.org/) and Gabriela Palomo-Muñoz.
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Research Summaries - Roads are a severe threat to apex predators across the globe - Make it stand out
Figure 3. Map of the distribution of the sloth bear and road density. The only areas without roads are shown in blue – 97% of its range has roads nearby.
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Research Summaries - Roads are a severe threat to apex predators across the globe - Make it stand out
Figure 4. Potential impact of future proposed road developments in (A,D) the Brazilian Amazon, (B,E) Africa, and (C,F) Nepal. Bubble sizes indicate the percentage of road length under each level of impact. Green areas denote protected areas, and in darker green are the areas that will be intersected directly or within a 10-km buffer around proposed roads. Bars on the left indicate the length (km) of future roads that will cross the species range; the percentage in relation to the complete length of the future development is also shown. Bars on the right indicate the proportion of future road crossing the species range in relation to the species total distribution. FRL = Future Road Length.
https://transportecology.info/research/road-ecology-research
monthly
0.5
2024-12-06
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Research Summaries - Improving the design of road ecology research - Make it stand out
Whatever it is, the way you tell your story online can make all the difference.
https://transportecology.info/research/connectivity-importance-in-eias
monthly
0.5
2024-12-06
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Research Summaries - Steps to improve connectivity consideration in EIAs for road projects - Make it stand out
Whatever it is, the way you tell your story online can make all the difference.
https://transportecology.info/research/brazil-roadless-areas
monthly
0.5
2024-12-06
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Research Summaries - The first comprehensive mapping of Brazil’s remaining road- and railroad-less areas - Make it stand out
Whatever it is, the way you tell your story online can make all the difference.
https://transportecology.info/research/wildlife-underpasses-benefits-risks
monthly
0.5
2024-12-06
https://transportecology.info/research/road-impacts-population-studies
monthly
0.5
2024-12-06
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Research Summaries - More study needed on the negative effects of roads on wildlife at the population level - Make it stand out
Whatever it is, the way you tell your story online can make all the difference.
https://transportecology.info/research/citizen-science-bat-taiwan
monthly
0.5
2024-12-06
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Research Summaries - Citizen science sheds light on patterns and causes of road-mortality of bats in Taiwan. - Make it stand out
Formosan tailless leaf-nosed bat, (Wei-Yi Tasi, CC-BY-NC 4.0), is a protected species in Taiwan but also threatened by the development of road in the mountain.
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Research Summaries - Citizen science sheds light on patterns and causes of road-mortality of bats in Taiwan. - Figure 1. Map showing zoogeographical regions in China and number of associated publications
In 2018, TaiRON introduced a new survey methodology to assess road mortality of wildlife using a systematic grid across Taiwan to control for sampling biases observed in previous citizen science records.
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Research Summaries - Citizen science sheds light on patterns and causes of road-mortality of bats in Taiwan. - Make it stand out
Geographic and elevational distributions of road casually events of bats in Taiwan collected by TaiRON from 2013 to 2018
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Research Summaries - Citizen science sheds light on patterns and causes of road-mortality of bats in Taiwan. - Make it stand out
A scale card designed by the TaiRON team was used to show the size of a victim bat. The cards were given to citizen scientists who are volunteering to wildlife road collision surveys.
https://transportecology.info/research/impacts-of-roads-china
monthly
0.5
2022-10-13
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Research Summaries - Impacts of Roads on Wildlife and Conservation in China - Figure 1. Map showing zoogeographical regions in China and number of associated publications
Figure 1. Map showing zoogeographical regions in China and number of associated publications
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Research Summaries - Impacts of Roads on Wildlife and Conservation in China - Make it stand out
Figure 2. Number of peer reviewed road ecology research publications in China each year.
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Research Summaries - Impacts of Roads on Wildlife and Conservation in China
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Research Summaries - Impacts of Roads on Wildlife and Conservation in China
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Research Summaries - Impacts of Roads on Wildlife and Conservation in China
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Research Summaries - Impacts of Roads on Wildlife and Conservation in China
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Research Summaries - Impacts of Roads on Wildlife and Conservation in China
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Research Summaries - Impacts of Roads on Wildlife and Conservation in China
https://transportecology.info/research/wildlife-fencing-mitigation-measures
monthly
0.5
2025-05-19
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Research Summaries - Don’t fall short on fencing! - Figure 1. The mitigated section of US Hwy 1 on Big Pine Key.
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Research Summaries - Don’t fall short on fencing!
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Research Summaries - Don’t fall short on fencing!
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Research Summaries - Don’t fall short on fencing!
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Research Summaries - Don’t fall short on fencing!
Figure 5. The number of Key deer road mortalities per year along all roads on all the islands combined (1966–2016) and during the ten years before (1991–2000) and the fourteen years after mitigation (2003–2016) along both the mitigated and unmitigated section of US Hwy 1 on Big Pine Key (BPK).
https://images.squarespace-cdn.com/content/v1/5e2574c3ee2964277b114f7c/efec922b-9c08-443c-9c3e-fbbaf3a0947f/marcel+fig+6.jpg
Research Summaries - Don’t fall short on fencing! - Make it stand out
Figure 6. The average percentage (and SD) of roadkilled Key deer of the total estimated population size in the years before and after implementation of the mitigation measures along the eastern section of US Hwy 1 on Big Pine Key (BPK).
https://images.squarespace-cdn.com/content/v1/5e2574c3ee2964277b114f7c/457cd67b-2f1b-4720-b62a-4c388f8c3d6f/marcel+fig+7.jpg
Research Summaries - Don’t fall short on fencing! - Make it stand out
Figure 7. Significant hotspots (red shading) and cold spots (grey shading) for Key deer-vehicle collisions along US Hwy 1 before (a) and after (b) mitigation. Numbers represent the mile reference posts.
https://images.squarespace-cdn.com/content/v1/5e2574c3ee2964277b114f7c/7e99455e-0314-416f-a5cb-cafca3a5d766/marcel+fig+8.jpg
Research Summaries - Don’t fall short on fencing! - Make it stand out
Figure 8. The average number (and SD) of Key deer-vehicle collisions per mile per year in the control and mitigated road section before and after the mitigation measures were implemented.
https://transportecology.info/research/wolves-prey-greenbridgeuse
monthly
0.5
2022-08-01
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Research Summaries - Wolves and Prey Species use Green Bridges to cross over Busy Highway in Germany - Figure 1. A Gray wolf captured on the green bridge over the A12 HIghway in Brandenburg State, Germany.
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Research Summaries - Wolves and Prey Species use Green Bridges to cross over Busy Highway in Germany
Figure 2 Location of the green bridge and camera trap positions. Left: Map of Germany. A12 shown in black within Brandenburg state (red), other German states shown by thin black lines. Middle: Aerial image of the landscape surrounding the green bridge, with A12 bisecting the middle of the panel. Right: Aerial image of the green bridge, with the wildlife camera (FF1/FF2) locations shown and arrows indicating the viewing angles of the wildlife cameras. The dotted line indicates the main wildlife game path. Map source: © GeoBasis-DE/LGB, dl-de/by-2-0
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Research Summaries - Wolves and Prey Species use Green Bridges to cross over Busy Highway in Germany - Make it stand out
Figure 3. Red deer captured on the green bridge over the A12 HIghway in Brandenburg State, Germany.
https://transportecology.info/research/streetlight-impacts-insects-bats
monthly
0.5
2022-06-21
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Research Summaries - Traffic-regulated street lights to reduce impacts of light pollution: Good news for nocturnal insects and bats?
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Research Summaries - Traffic-regulated street lights to reduce impacts of light pollution: Good news for nocturnal insects and bats?
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Research Summaries - Traffic-regulated street lights to reduce impacts of light pollution: Good news for nocturnal insects and bats?
https://images.squarespace-cdn.com/content/v1/5e2574c3ee2964277b114f7c/a8004dd7-fcd2-4006-9e81-4ec74ce9f68d/composite3.jpg
Research Summaries - Traffic-regulated street lights to reduce impacts of light pollution: Good news for nocturnal insects and bats? - Figure 1. Flight-intersection traps are mounted to street-light poles to assess the abundance of nocturnal insects as a function of street light levels. The black box in the top left photo shows a device for recording acoustic signals of bats (batlogger). Photos: J Bolliger, MK Obrist, K. Soland.
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Research Summaries - Traffic-regulated street lights to reduce impacts of light pollution: Good news for nocturnal insects and bats?
Figure 2. Total number of insects caught in the different insect groups, in full vs. dimmed light. Statistical significance of difference between full light and dimmed treatments are given on the right (*** = p < 0.01; * = p < 0.05; n.s. = not significant; - = not tested). Numeric values are given in the bars.
https://images.squarespace-cdn.com/content/v1/5e2574c3ee2964277b114f7c/f0a361d7-0463-4826-802f-cc65a8913442/bollinger+fig+3.png
Research Summaries - Traffic-regulated street lights to reduce impacts of light pollution: Good news for nocturnal insects and bats? - Make it stand out
Figure 3. Total and guild specific numbers of bat passes recorded in full vs. dimmed light. Significance of difference between the treatments are given on the right (* = p < 0.05; n.s. = not significant). Numeric values are given in the bars. LRE: long-range echolocators, MRE: mid-range echolocators (most common species, e.g. Common Pipistrelle); SRE: short-range echolocators.
https://transportecology.info/research/chimpanzee-roadeffectzone
monthly
0.5
2022-06-09
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Research Summaries - Critically endangered Western Chimpanzees affected by roads up to 17.2 km away - Make it stand out
Figure 1. (a) Estimated density (individuals/km2) of western chimpanzees across their present geographic range in West Africa. The brighter colours indicate a density higher than 0.05, while the dark blue colours indicate a density lower than 0.05 individuals/km2; (b) distribution of major and minor roads across West Africa; and (c) examples of road widening projects and western chimpanzees crossing roads in Bossou, Guinea (Photograph credits: author KJH). West African countries are labelled as: BF, Burkina Faso; BJ, Benin; CI, Ivory Coast; CV, Cape Verde; GH, Ghana; GM, Gambia; GW, Guinea Bissau; GN, Guinea; LR, Liberia; MR, Mauritania; ML, Mali; NE, Niger; NG, Nigeria; SL, Sierra Leone; SN, Senegal; TG, Togo.
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Research Summaries - Critically endangered Western Chimpanzees affected by roads up to 17.2 km away
Figure 2. Left, is an example of a major road (trunk road) the Kampala-Entebbe-Highway between Katwe and Zana in Uganda. Right, is an example of a minor road, a foot and cycle path in Luweero, Uganda. The examples above were obtained from OpenStreetMap and were not used in the study.
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Research Summaries - Critically endangered Western Chimpanzees affected by roads up to 17.2 km away - Make it stand out
Figure 3. Extent of the road-effect zones (REZs) of (a) major roads (17.2 km), (b) minor roads (5.4 km), and (c) major and minor roads combined across the geographic range of the western chimpanzee. See Figure 1 for country labels.
https://transportecology.info/research/grasshopper-cricket-assemblages
monthly
0.5
2022-05-19
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Research Summaries - Motorways change grasshopper and cricket assemblages in a Croatian grassland - Make it stand out
Figure 1. (A) Map of the study area (rectangle) with sampling locations indicated by red dots; (B-F) Sampling sites at (B) 10 m, (C) 25 m, (D) 50 m, (E) 100 m, and (F) 500 m distance from the A1 motorway within a grassland habitat in Ličko polje karst field, Croatia. Photos taken at sampling location 2.
https://images.squarespace-cdn.com/content/v1/5e2574c3ee2964277b114f7c/d6786d61-9f2c-45c8-b383-cf553c8c6838/Figure+2.png
Research Summaries - Motorways change grasshopper and cricket assemblages in a Croatian grassland
Figure 2. Differences in orthopteran assemblages sampled by pitfall traps at different distances from the motorway: (A) abundance; (B) species richness; (C) true diversity (Shannon index); (D) true diversity (Simpson index); (E) conservation value (Grasshopper Conservation Index). Different letters indicate statistically significant differences among estimated means (p < 0.05).
https://transportecology.info/research/transportation-threats-to-primates
monthly
0.5
2022-04-29
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Research Summaries - Transportation infrastructure is a growing but under-appreciated threat to the world’s primates. - Make it stand out
Chimpanzees risk the crossing of an unpaved road in Uganda. Photo: Cheryl Ramalho
https://images.squarespace-cdn.com/content/v1/5e2574c3ee2964277b114f7c/4d37617b-89a7-427c-a04a-0925a4b3ff32/Corridor+numbers.jpg
Research Summaries - Transportation infrastructure is a growing but under-appreciated threat to the world’s primates.
Figure 1. The number of primate species impacted by each type of transportation and service corridor based on the reviewed literature
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Research Summaries - Transportation infrastructure is a growing but under-appreciated threat to the world’s primates. - Make it stand out
Figure 2. The diversity of effective wildlife crossing possibilities for primates. Wildlife crossings with little or no evidence of use by primates include large bridges, underpasses and steel ropes.
https://transportecology.info/research/roadkill-rates-through-time-phillipisland
monthly
0.5
2022-03-28
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Research Summaries - Roadkill rates change through time – Mitigation needs to be adapted to the species. - Make it stand out
Figure 1. Aerial photo of Phillip Island in south-eastern Australia with a varied land use of conservation reserves, agriculture, and urban settlements. Images represent the diversity of road contexts considered throughout the study.
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Research Summaries - Roadkill rates change through time – Mitigation needs to be adapted to the species.
Figure 2. The number of roadkill per kilometre per month between February and June 1998-99 (white bars) and in 2014 (grey bars). Birds(all*) excludes short-tailed shearwaters.
https://images.squarespace-cdn.com/content/v1/5e2574c3ee2964277b114f7c/ea404143-3f84-4329-8b1d-df15cf88b2ea/Rendall_fig+3.jpg
Research Summaries - Roadkill rates change through time – Mitigation needs to be adapted to the species. - Make it stand out
Figure 3. Roadkill hotspots for different taxonomic groups across Phillip Island roads between February and June 2014. The size of dot represents the number of roadkill (square root transformed).
https://transportecology.info/research/review-of-road-impacts-on-bats
monthly
0.5
2022-03-14
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Research Summaries - Bats on the road — a systematic review of the impacts of roads and traffic on bats
Photo: Daniel Ramalho
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Research Summaries - Bats on the road — a systematic review of the impacts of roads and traffic on bats - Make it stand out
Streetlights are beneficial to some species of bats which are attracted to the insects that swarm around the artificial light, while other species of bats avoid artificially-lit areas.
https://transportecology.info/research/european-hedgehogs-road-mortality-mitigation
monthly
0.5
2022-02-21
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Research Summaries - From genes to populations: the multi-faceted impacts of road mortality on European hedgehogs and potential mitigation solutions
Photo: Lauren Moore
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Research Summaries - From genes to populations: the multi-faceted impacts of road mortality on European hedgehogs and potential mitigation solutions - Make it stand out
Photo: Lauren Moore
https://transportecology.info/research/hungary-roads-amphibian-ponds
monthly
0.5
2022-01-19
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Research Summaries - Roads Reduce Amphibian Abundance in Ponds
Figure 1. Mean estimates of larval abundance (shaded areas are 95% credible intervals) across the amphibian community versus: (a) distance from highway; (b) % road surface within a 1000-m radius of the pond; and (c) % accessible habitat within a 1000-m radius of the pond.
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Research Summaries - Roads Reduce Amphibian Abundance in Ponds - Make it stand out
Figure 2. Larvae of: (a) common toad; (b) European tree frog; (c) common newt. Note the presence of both forelimbs and hindlimbs in (a) and (b) which indicates that the tadpoles are undergoing metamorphosis. Photo: B. Barta & A. Bohus
https://transportecology.info/research/underpass-functionality-route34-costa-rica
monthly
0.5
2022-01-19
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Research Summaries - Functionality of underpasses as wildlife crossings on Route 34, Hacienda Barú National Wildlife Refuge, Puntarenas, Costa Rica.
Figure 1. . Route 34 and Hacienda Barú National Wildlife Refuge, Puntarenas, Costa Rica..
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Research Summaries - Functionality of underpasses as wildlife crossings on Route 34, Hacienda Barú National Wildlife Refuge, Puntarenas, Costa Rica. - Make it stand out
Figure 2. Map showing the location of underpasses along Route 34 that divides Hacienda Barú National Wildlife Refuge, Puntarenas, Costa Rica.
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Research Summaries - Functionality of underpasses as wildlife crossings on Route 34, Hacienda Barú National Wildlife Refuge, Puntarenas, Costa Rica. - Make it stand out
Figure 3. Mammals recorded using underground structures under Route 34: section Refugio Hacienda Barú. A. Common Opossum. B. Common Gray Four-Eyed Opossum. C. Northern Tamandua. D. Nine-Banded Long-Nosed Armadillo. E. Central American Agouti. F. Paca. G. Northern Raccoon. H. White-Nosed Coati. I. Tayra. J. Striped Hog-Nosed Skunk. K. Ocelot. L. Collared Peccary.
https://transportecology.info/research/road-fencing-population-persistence
monthly
0.5
2022-01-19
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Research Summaries - Effects of road fencing on population persistence: Under what conditions will fences be beneficial?
Figure 1. Illustration of road avoidance, R, and the proportion of animals killed on the road when trying to cross, K. The two variables are specified independently of each other, ranging from 0 to 100%. Barrier strength, B, comprises both effects, B = 1 – (1 – R)⋅(1 – K).
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Research Summaries - Effects of road fencing on population persistence: Under what conditions will fences be beneficial? - Make it stand out
Figure 2. Probability of population persistence as a function of traffic mortality (K) and road avoidance (R). R = 1 corresponds to the effect of fencing.
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Research Summaries - Effects of road fencing on population persistence: Under what conditions will fences be beneficial? - Make it stand out
Figure 3. Fence threshold line separating the ranges of traffic mortality (K) and road avoidance (R) within which fencing a road would increase or decrease population persistence.
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Research Summaries - Effects of road fencing on population persistence: Under what conditions will fences be beneficial? - Make it stand out
Figure 4. A fence for large and medium-sized mammals along Highway 175 in Quebec, Canada. Fencing was combined with several wildlife passages for large mammals and many wildlife passages for medium-sized and small mammals along the road. The fences guide animals to the wildlife passages. Photo: Jochen Jaeger
https://transportecology.info/research/alternative-routes-for-indonesia-mining-road
monthly
0.5
2022-01-19
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Research Summaries - Alternative routes for a major Indonesian mining road to reduce environmental and financial costs
Figure 1. Initial land clearing for the PT MBJ coal transport road. Photo by Erwan Hermawan/TEMPO. Sumatra, Indonesia, 19 June 2020.
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Research Summaries - Alternative routes for a major Indonesian mining road to reduce environmental and financial costs - Make it stand out
Figure 2. Mining-road routes for both the three initial proposed routes (the ‘Outside’, ‘Edge’ and ‘Through’ roads) and our five potential alternative routes generated using least cost-path analysis (‘A’ to ‘E’). Roads “A” and “B” (displayed using a heavier line) are considered the best potential routes from environmental and construction-cost perspectives.
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Research Summaries - Alternative routes for a major Indonesian mining road to reduce environmental and financial costs - Make it stand out
Figure 3. Wood products from land clearing in and around the APRIL plantations in Sumatra, Indonesia. Photo by William Laurance.
https://transportecology.info/research/great-crested-newt-tunnelfencesystem
monthly
0.5
2022-01-19
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Research Summaries - An under-road tunnel and fence system supports population increases of the Great Crested Newt in England - Make it stand out
Photo credit: Mihai Leu
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Research Summaries - An under-road tunnel and fence system supports population increases of the Great Crested Newt in England
Figure 1. Male Great Crested Newt crossing under the road via the climate tunnels and recorded with the customised cameras. Notice the timestamp; unlike frogs and toads, most newts, including this one, were using the tunnels in autumn to disperse away from ponds rather than spring for breeding migrations.
https://transportecology.info/research/potential-corridors-wild-cats-brazil
monthly
0.5
2023-01-06
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Research Summaries - Potential movement corridors and areas of high predicted road mortality are in different locations for wild cats in Brazil - Make it stand out
A jaguarundi (Herpailurus yagouaroundi) killed by road traffic. Photo by Lucas Gonçalves da Silva
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Research Summaries - Potential movement corridors and areas of high predicted road mortality are in different locations for wild cats in Brazil
Figure 1. a) Northern tiger cat (Leopardus tigrinus); b) Southern tiger cat (L. guttulus); c) Ocelot (L. pardalis), d) Jaguarundi (H. yagouaroundi) and e) Puma (Puma concolor). Photos by Lucas Gonçalves da Silva
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Research Summaries - Potential movement corridors and areas of high predicted road mortality are in different locations for wild cats in Brazil - Make it stand out
Figure 2. Road segments that are crossed by potential movement corridors (blue) and segments of high road-mortality risk (orange).
https://transportecology.info/research/bird-collisions-with-powerlines
monthly
0.5
2022-01-19
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Research Summaries - What we know (and don't know) about bird collisions with power lines and how to mitigate them - Make it stand out
Whatever it is, the way you tell your story online can make all the difference.
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Research Summaries - What we know (and don't know) about bird collisions with power lines and how to mitigate them
Figure 1. The three groups of factors that influence the rate of collision of birds with overhead power lines.
https://transportecology.info/research/fences-have-big-effects
monthly
0.5
2025-06-20
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Research Summaries - Fences have big effects on land and wildlife around the world that are rarely measured - This article is re-published from The Conversation.
https://transportecology.info/research/turn-off-the-lights-bats-underpasses
monthly
0.5
2022-01-19
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Research Summaries - Turn off the lights – Bats avoid lit underpasses
Figure 1. An underpass combining a bicycle/walking path and rock gabion walls intended for reptiles. Credit: Rodney van der Ree, Netherlands 2018
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Research Summaries - Turn off the lights – Bats avoid lit underpasses
Figure 2. Top: Experimental set up at lit and unlit crossing structures during the three phases of the trials: before, during and after. Note: the figure depicts two structures; these were replicated resulting in four structures used during each trial. Bottom: Potential responses of bats to lighting in the underpasses: avoidance, attraction or no response. Arrow thickness indicates the change in crossing activity.
https://transportecology.info/research/attributes-for-water-culverts-as-crossing-structures
monthly
0.5
2022-01-19
https://images.squarespace-cdn.com/content/v1/5e2574c3ee2964277b114f7c/1614938946858-PAMWUSB80P84R6PS0ISU/Brunen+et+al.+-+promotionalPhoto.JPG
Research Summaries - What attributes are relevant for water culverts to serve as efficient road crossing structures for mammals?
https://images.squarespace-cdn.com/content/v1/5e2574c3ee2964277b114f7c/1614938980097-VUWCPFSG7ELKILHC8ZCM/Brunen+et+al.+-+Fig.+1.jpg
Research Summaries - What attributes are relevant for water culverts to serve as efficient road crossing structures for mammals?
Fig. 1: Installation of trail cameras and track-boxes. A two-camera setup was employed at each entrance within each culvert. (Photo credit: Jonathan Cole, Steffy Velosa, and Mehrdokht Pourali.)
https://images.squarespace-cdn.com/content/v1/5e2574c3ee2964277b114f7c/1614938999504-DGNLKV2AJCHFHNYARNZL/Brunen+et+al.+-+Fig.+2.jpg
Research Summaries - What attributes are relevant for water culverts to serve as efficient road crossing structures for mammals?
Fig. 2: Illustration of camera triggers that were used to confirm a full passage.
https://images.squarespace-cdn.com/content/v1/5e2574c3ee2964277b114f7c/1614939024915-P3KNI46TXPA57IIV1KL8/Brunen+et+al.+-+Fig.+3.jpg
Research Summaries - What attributes are relevant for water culverts to serve as efficient road crossing structures for mammals?
Fig. 3: Layout of the track-boxes in relation to each of the water culverts along Autoroute 10 in Quebec, Canada.
https://images.squarespace-cdn.com/content/v1/5e2574c3ee2964277b114f7c/1614939053592-GBES3S2139CG3K55CCAQ/Brunen+et+al.+-+Fig.+4.jpg
Research Summaries - What attributes are relevant for water culverts to serve as efficient road crossing structures for mammals?
Fig 4: Total numbers of detections and full crossings by species. Common raccoons and American mink showed the highest numbers of full crossings.
https://transportecology.info/research/plants-in-powerline-corridors
monthly
0.5
2022-01-20
https://images.squarespace-cdn.com/content/v1/5e2574c3ee2964277b114f7c/1614679093512-JXTQ6RS3WUFKPM43NTSV/Powerline.png
Research Summaries - Power line corridors put the brakes on the extinction of plants in declining semi-natural grassland habitats
https://images.squarespace-cdn.com/content/v1/5e2574c3ee2964277b114f7c/1614678409513-HRS8UHTKTIZ1EMKAM0XB/Fig.1.png
Research Summaries - Power line corridors put the brakes on the extinction of plants in declining semi-natural grassland habitats
Fig. 1. a) Location of the 32 2 km x 2 km landscapes in Sweden and (b) study design. The grass illustration in the landscapes is simplified representation of the varying areas of semi-natural grasslands within all 32 landscapes.
https://images.squarespace-cdn.com/content/v1/5e2574c3ee2964277b114f7c/1614678491743-L7KCD153DEM74PIJTX7T/Fig.2.png
Research Summaries - Power line corridors put the brakes on the extinction of plants in declining semi-natural grassland habitats
Fig. 2. Average richness of plant species in landscapes with and without power line corridors. Species richness of plant species is on average ~ 6 species higher in landscapes with power line corridors than in landscapes without power line corridors. The grey bands represent the 95% confidence intervals. Note that the y-axis does not start at zero.
https://transportecology.info/research/roadkill-hotspot-analysis-can-help-save-wildlife
monthly
0.5
2022-01-20
https://images.squarespace-cdn.com/content/v1/5e2574c3ee2964277b114f7c/1613467544912-HI1EHXYEUG45X1JMR9H8/Fig.+1+for+summary+of+Spanowicz+et+al.+2020.jpg
Research Summaries - Roadkill-hotspot analysis can help save wildlife from getting killed on roads by prioritizing road sections for fencing
Fig. 1: Proposed adaptive fence-implementation plan. Scale refers to the diameter of the circles used in roadkill hotspot analysis.
https://images.squarespace-cdn.com/content/v1/5e2574c3ee2964277b114f7c/1613467636813-GDIWC7XDDMUGEQ10CQAA/Fig.+2+for+summary+of+Spanowicz+et+al.+2020.jpg
Research Summaries - Roadkill-hotspot analysis can help save wildlife from getting killed on roads by prioritizing road sections for fencing
Fig. 2: Example of a mortality-reduction graph (two scales are shown: 200 m and 2000 m for Highway 175 in Quebec, Canada). Based on the hotspots identified at the finer scale (200 m, shown in purple), fencing results in a steeper reduction of mortality. For example, as indicated by the fence symbol on the x-axis, fencing 32,000 m of the road using hotspots identified at the 2000-m scale is predicted to reduce road mortality by 65% (green line), but when hotspots identified at the 200-m scale are used, the fencing is predicted to reduce road mortality by 77% (purple line).
https://images.squarespace-cdn.com/content/v1/5e2574c3ee2964277b114f7c/1613467735312-QQDCIQHXAIB8GZA62KU6/Fig.%2B3%2Bfor%2Bsummary%2Bof%2BSpanowicz%2Bet%2Bal.%2B2020.jpg
Research Summaries - Roadkill-hotspot analysis can help save wildlife from getting killed on roads by prioritizing road sections for fencing
Fig. 3: Illustration of the FLOMS trade-off: A few long or many short fences? To reduce roadkill by the same amount in this example, three 200-m fences or one 1000-m fence can be used, but the fence-end effect may result in a lower reduction in mortality when three short fences are used.
https://transportecology.info/research/designing-testing-tunnels-asian-amphibians
monthly
0.5
2022-01-20
https://images.squarespace-cdn.com/content/v1/5e2574c3ee2964277b114f7c/1612780957928-03GOLSK92J9QJP1VHM9I/Promotional+photo+Asian+toads.jpg
Research Summaries - Designing and testing under-road tunnels for Asian amphibians
The Asiatic toad is subject to severe rates of road mortality in Northeast China and many populations have declined in recent years.
https://images.squarespace-cdn.com/content/v1/5e2574c3ee2964277b114f7c/1612781096145-ZBJ7J0N2NUDLLR6MO38Q/Design+of+experimental+arenas.jpg
Research Summaries - Designing and testing under-road tunnels for Asian amphibians
Design of the experimental arenas to determine the preferences of amphibians for different culverts
https://images.squarespace-cdn.com/content/v1/5e2574c3ee2964277b114f7c/1612781141457-SZ6IF6D7X9STUE3U0PA0/Asiatic+toads+released+in+central+arena.png
Research Summaries - Designing and testing under-road tunnels for Asian amphibians
Asiatic toads being released in the central arena of an experimental array of six different culverts
https://transportecology.info/research/power-lines-impact-biodiversity-28-ways
monthly
0.5
2022-01-20
https://images.squarespace-cdn.com/content/v1/5e2574c3ee2964277b114f7c/1610974064927-4EGEYPKF1PM4D9PAAN4P/Figure+01+Biasotto%26Kindel.jpg
Research Summaries - Power lines impact biodiversity in at least 28 different ways
Fig 1. A) Brazilian howler monkeys electrocuted while using overhead distribution wires to displacement – Photo: João Cláudio Godoy; B) Shiny Cowbird stuck in an anchoring structure of wire on an energy pole - Photo: Glayson A. Bencke; C) White-tailed Hawk perching on poles with bird nests – Photo: Glayson A. Bencke; D) The white-eared opossum electrocuted on powerlines with wires vertically arranged – Photo: Débora Glienke.
https://transportecology.info/research/warning-signals-trains
monthly
0.5
2022-01-20
https://images.squarespace-cdn.com/content/v1/5e2574c3ee2964277b114f7c/1606902714058-CN04QEJ9FFTTZ2ZVRM0A/JBacks-Figure1.jpg
Research Summaries - Warning signals triggered by trains increase escape time for wildlife
Figure 1: Warning device activating as a train approaches. Image used with permission from CBC TV.
https://images.squarespace-cdn.com/content/v1/5e2574c3ee2964277b114f7c/1606902425109-XNMXQYWPD248V21U83J3/JBacks-Figure2.png
Research Summaries - Warning signals triggered by trains increase escape time for wildlife
Figure 2: Effect of treatment on flight initiation time for four groupings of approach curvature and animal size. Box plots indicate medians, first and third quartiles, and range to 1.5 times the interquartile range. Means and standard errors are indicated by the filled circles with ranges. All data points are shown with test site indicated by shape and position grouping. Image reproduced from Backs et al. 2020.
https://transportecology.info/research/stop-ignoring-the-small
monthly
0.5
2022-01-20
https://images.squarespace-cdn.com/content/v1/5e2574c3ee2964277b114f7c/1606901126842-PIDVN5HDQFRVOPNT95BI/Fig+1.jpg
Research Summaries - Stop ignoring the small! Clues for conservation using roadkill data.
Figure 1: An endemic Perote ground squirrel, considered endangered by the IUCN, watches from the road´s edge as two other squirrels lay roadkilled on the asphalt, most likely her two offspring.
https://images.squarespace-cdn.com/content/v1/5e2574c3ee2964277b114f7c/1606901187179-TGN3GONF16HOPC9JH12G/Fig+2+%281%29.jpg
Research Summaries - Stop ignoring the small! Clues for conservation using roadkill data.
Figure 2: The Amozoc-Cantona-Perote highway (14km) in the border of Veracruz and Puebla states, México crosses two habitats, A) well preserved shrubland on a lava spill, and B) disturbed grasslands with high agricultural pressures.
https://images.squarespace-cdn.com/content/v1/5e2574c3ee2964277b114f7c/1606901281383-LEN23Z0DXM7H9N7SCUPU/Fig+3+%281%29.jpg
Research Summaries - Stop ignoring the small! Clues for conservation using roadkill data.
Figure 3: Pie chart showing roadkill by taxonomic group and a list of priority species, protected by law found roadkilled along the Amozoc-Cantona-Perote highway, Mexico.
https://transportecology.info/research/where-jaguars-cross
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2022-01-20
https://images.squarespace-cdn.com/content/v1/5e2574c3ee2964277b114f7c/1606900266054-3STREY93NSTVMXIFAPGV/Fig1.jpg
Research Summaries - Where Jaguars Cross Other Will Follow
Figure 1. Male jaguar going through one of the wildlife underpasses under the Nuevo-Xcan-Playa del Carmen highway in Quintana Roo, México.
https://images.squarespace-cdn.com/content/v1/5e2574c3ee2964277b114f7c/1606900375180-EBZ0JOFWWIEG0DEFFQ9B/Fig+2.jpg
Research Summaries - Where Jaguars Cross Other Will Follow
Figure 2. Study area, location of the Nuevo Xcan-Playa del Carmen highway in thick gray line (left). Highway view, two lanes with shoulders (12 m crown) with 60 m right of way, and how the surrounding environment looks like (right).
https://images.squarespace-cdn.com/content/v1/5e2574c3ee2964277b114f7c/1606900504920-1RG6LV1ZM1WKRH5CI27J/Fig+3.jpg
Research Summaries - Where Jaguars Cross Other Will Follow
Figure 3. (Left): View of the Nuevo-Xcan-Playa del Carmen highway in Quintana Roo, México, showing wildlife underpasses and arboreal crossings as rope bridges. On the right are photos of each type of underpass, including dedicated wildlife underpasses as well as box culverts and concrete pipes for drainage and wildlife.
https://transportecology.info/research/roads-simplifying-bird-communities
monthly
0.5
2022-01-20
https://images.squarespace-cdn.com/content/v1/5e2574c3ee2964277b114f7c/1604917136372-9ER5MYY7ASEAB6J366CS/Blue+Tit+Norfolk+2014+S2.jpg
Research Summaries - Could roads be simplifying bird communities?
https://images.squarespace-cdn.com/content/v1/5e2574c3ee2964277b114f7c/1604917900872-D7YELGFIP6A5JCV2SB08/Roads+700+m+2.jpg
Research Summaries - Could roads be simplifying bird communities?
https://images.squarespace-cdn.com/content/v1/5e2574c3ee2964277b114f7c/1604917899498-AIL7HR5GZWJ7M8AC4JS2/Protected+areas+700+m+2.jpg
Research Summaries - Could roads be simplifying bird communities?
https://transportecology.info/research/roads-threaten-millions-of-birds-and-mammals-in-europe-each-year
monthly
0.5
2022-01-20
https://images.squarespace-cdn.com/content/v1/5e2574c3ee2964277b114f7c/1604916182183-ALV0TXS6FSJ1H33H03P1/Athene+noctua+Credits+Joaquim+Pedro+Ferreira.JPG
Research Summaries - Roads Threaten Millions of Birds and Mammals in Europe Each Year
https://images.squarespace-cdn.com/content/v1/5e2574c3ee2964277b114f7c/1604915651558-LLSFVVRLOEUMACHTQEL7/Meles+meles+Credits+Joaquim+Pedro+Ferreira.JPG
Research Summaries - Roads Threaten Millions of Birds and Mammals in Europe Each Year
https://transportecology.info/research/dormouse-bridge-trial
monthly
0.5
2022-01-20
https://images.squarespace-cdn.com/content/v1/5e2574c3ee2964277b114f7c/1579796482255-784773W2KB47DBMMCCN3/Dormouse.jpeg
Research Summaries - Arboreal Bridge Trial for Hazel Dormice
https://transportecology.info/research/african-road-ecology-review
monthly
0.5
2020-12-18
https://images.squarespace-cdn.com/content/v1/5e2574c3ee2964277b114f7c/1580226185763-5YGFEYJHZN8E6XVJ7T4L/Animals+crossing+road+Africa.jpeg
Research Summaries - Road Ecology Research in Africa
https://images.squarespace-cdn.com/content/v1/5e2574c3ee2964277b114f7c/1579797601321-98DWG5AXJCQFBC7R76GN/regional+review+africa+studies.jpg
Research Summaries - Road Ecology Research in Africa
https://transportecology.info/research/tag/South+America
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https://transportecology.info/case-studies
daily
0.75
2026-03-05
https://transportecology.info/case-studies/y2y-initiative
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2026-02-19
https://images.squarespace-cdn.com/content/v1/5e2574c3ee2964277b114f7c/5b6114f9-d35a-45bb-a6c0-de4336b07534/image1.png
Case Studies - The Hidden Infrastructure Reconnecting North America’s Wildlife, Explained - Make it stand out
Photo: Planet Wild
https://images.squarespace-cdn.com/content/v1/5e2574c3ee2964277b114f7c/63c71284-5e03-4cd5-abe5-9f3834a46b06/Anmerkung+2026-02-19+142108.png
Case Studies - The Hidden Infrastructure Reconnecting North America’s Wildlife, Explained - Make it stand out
Whatever it is, the way you tell your story online can make all the difference.
https://transportecology.info/case-studies/norway-raillkill-database
monthly
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2026-02-19
https://images.squarespace-cdn.com/content/v1/5e2574c3ee2964277b114f7c/4d50e5a3-ecdf-477b-8aba-62ebec5dbf20/1.jpg
Case Studies - Every collision counts: Building Norway’s 13-Year National Database of railway wildlife mortality - Make it stand out
Courtesy of Bane NOR
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Case Studies - Every collision counts: Building Norway’s 13-Year National Database of railway wildlife mortality - Make it stand out
Figure 1 - Temporal patterns of railway mortality in Norwegian carnivores and ungulates, including semi-domesticated reindeer.
https://transportecology.info/case-studies/minimizing-the-negative-impact-of-roads
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Case Studies - Shifting gears - Humanity needs roads and other infrastructure. But how can we minimize infrastructure’s negative impacts and allow nature to thrive? - Make it stand out
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Case Studies - Shifting gears - Humanity needs roads and other infrastructure. But how can we minimize infrastructure’s negative impacts and allow nature to thrive? - Make it stand out
PILOT ROAD: The project being implemented along the El Retorno-Calamar road in Guaviare, Colombia, will help reduce negative environmental impacts and improve connectivity. © WWF-US/Luis Bernardo Cano
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Case Studies - Shifting gears - Humanity needs roads and other infrastructure. But how can we minimize infrastructure’s negative impacts and allow nature to thrive? - Make it stand out
© WWF/Matt Twombly
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Case Studies - Shifting gears - Humanity needs roads and other infrastructure. But how can we minimize infrastructure’s negative impacts and allow nature to thrive? - Make it stand out
An elephant crosses a road in Thailand. Wildlife crossings such as underpasses can improve connectivity when roads bisect habitats. © Phubadee Na Songkhla/Shutterstock.co
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Case Studies - Shifting gears - Humanity needs roads and other infrastructure. But how can we minimize infrastructure’s negative impacts and allow nature to thrive? - Make it stand out
Infographic: Designing roads for people and nature © WWF/Matt Twombly
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Case Studies - Shifting gears - Humanity needs roads and other infrastructure. But how can we minimize infrastructure’s negative impacts and allow nature to thrive? - Make it stand out
UNDER CONSTRUCTION: Miyer Henao and Maicol Perez at work in Guaviare. © WWF-US/Luis Bernardo Cano
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Case Studies - Shifting gears - Humanity needs roads and other infrastructure. But how can we minimize infrastructure’s negative impacts and allow nature to thrive? - Make it stand out
THE OTHER SIDE: A squirrel monkey crosses the Guaviare road. © WWF-US/Luis Bernardo Cano
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Case Studies - Shifting gears - Humanity needs roads and other infrastructure. But how can we minimize infrastructure’s negative impacts and allow nature to thrive? - Make it stand out
Land conversion around roads can be minimized with proper planning, such as implementing the mitigation hierarchy, during the earliest stages of an infrastructure project. © Michel Gunther/WWF
https://transportecology.info/case-studies/compton-road-fauna-array
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Case Studies - Restoring a Benchmark: How Community, Council, and Science Revived the Compton Road Wildlife Overpass - Make it stand out
Compton Rd drone shot by Rob Appleby and Douglas Kerlin Applied Transport Ecology Group Griffith University
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Case Studies - Restoring a Benchmark: How Community, Council, and Science Revived the Compton Road Wildlife Overpass - Make it stand out
Some of the retrofitted 'dry' underpass culverts were found to be flooded, with damaged wildlife furniture in need of replacement.
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Case Studies - Restoring a Benchmark: How Community, Council, and Science Revived the Compton Road Wildlife Overpass - Make it stand out
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Case Studies - Restoring a Benchmark: How Community, Council, and Science Revived the Compton Road Wildlife Overpass - Make it stand out
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Case Studies - Restoring a Benchmark: How Community, Council, and Science Revived the Compton Road Wildlife Overpass - Make it stand out
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https://transportecology.info/case-studies/cinereous-vulture-portugal
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Case Studies - Wildlife in peril: Portugal’s Newest Cinereous Vulture Colony Faces an Energy-Infrastructure Storm - Make it stand out
Tagged Cinerous Vulture chick, in the nest © Carlos Pacheco
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Case Studies - Wildlife in peril: Portugal’s Newest Cinereous Vulture Colony Faces an Energy-Infrastructure Storm - Make it stand out
© PauloMonteiro
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Case Studies - Wildlife in peril: Portugal’s Newest Cinereous Vulture Colony Faces an Energy-Infrastructure Storm - Make it stand out
Serra Mendro © MileneMatos
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Case Studies - Wildlife in peril: Portugal’s Newest Cinereous Vulture Colony Faces an Energy-Infrastructure Storm - Make it stand out
© BrunoBerthemy
https://transportecology.info/case-studies/connecting-indian-landscapes
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Case Studies - Rethinking Linear Infrastructure Developement to Protect Tigers and Elephants - A Case Study in the Terai Arc Landscape - Make it stand out
The elevated National Highway 72 passing through the Rajaji-Dehradun-Shivalik Corridor in the Terai Arc Landscape (India) [left], and a tiger using a wildlife crossing structure on the National Highway 44 passing through the Pench Tiger Reserve in Central India, one of the first wildlife crossing structures on highways in India [right]. Credits: Gautam Talukdar (left) and Wildlife Institute of India (right)
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Case Studies - Rethinking Linear Infrastructure Developement to Protect Tigers and Elephants - A Case Study in the Terai Arc Landscape - Make it stand out
Figure 1: The spread of roads in the transboundary Terai Arc Landscape spanning India and Nepal.
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Case Studies - Rethinking Linear Infrastructure Developement to Protect Tigers and Elephants - A Case Study in the Terai Arc Landscape - Make it stand out
Figure 2: Modelled tiger movement corridor in the Terai Arc Landscape. Green polygons indicate protected areas; the range of corridor shades indicate ease of movement, with purple indicating restriction to movement and yellow indicating relatively free movement.
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Case Studies - Rethinking Linear Infrastructure Developement to Protect Tigers and Elephants - A Case Study in the Terai Arc Landscape - Make it stand out
Figure 3: Discussions on the state of linear infrastructure impacts in the Terai Arc Landscape between different stakeholders during the consultative workshop held at the Wildlife Institute of India in October 2024.
https://transportecology.info/case-studies/mitigating-elephant-train-collisions
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Case Studies - Use of sensor cameras in detecting wildlife near railway lines to prevent Train-Wildlife Collision (TWC) in Tamil Nadu, India - Make it stand out
Picture 1: Thermal image of an elephant family approaching the railway tracks in Madukkarai, Tamil Nadu (Source: Tamil Nadu Forest Department)
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Case Studies - Use of sensor cameras in detecting wildlife near railway lines to prevent Train-Wildlife Collision (TWC) in Tamil Nadu, India - Make it stand out
Picture 2: Vulnerable locations of Railway track in Madukkarai (Source: Tamil Nadu Forest Department)
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Case Studies - Use of sensor cameras in detecting wildlife near railway lines to prevent Train-Wildlife Collision (TWC) in Tamil Nadu, India - Make it stand out
Picture 3: Google Earth image of the site location showing forest connectivity
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Case Studies - Use of sensor cameras in detecting wildlife near railway lines to prevent Train-Wildlife Collision (TWC) in Tamil Nadu, India - Make it stand out
Picture 4: Official monitoring the System at the control room (Source: BBC)
https://transportecology.info/case-studies/illaweena-overpass
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Case Studies - Taking the landscape and the people seriously: Cooperation leads to multiple safe passages for wildlife in a suburban setting in Brisbane, Australia - Make it stand out
Credit: Transurban
https://transportecology.info/case-studies/i90-wildlife-crossing-usa
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Case Studies - Working Together Works: From conflict to cooperation in the Cascade Mountains, USA
The I-90 Wildlife Crossing. Image: Darryl Jones
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Case Studies - Working Together Works: From conflict to cooperation in the Cascade Mountains, USA - Make it stand out
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Case Studies - Working Together Works: From conflict to cooperation in the Cascade Mountains, USA
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Case Studies - Working Together Works: From conflict to cooperation in the Cascade Mountains, USA
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Case Studies - Working Together Works: From conflict to cooperation in the Cascade Mountains, USA
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Case Studies - Working Together Works: From conflict to cooperation in the Cascade Mountains, USA
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Founder and Lead Editor, Researcher and consultant, Ecology & Infrastructure International Australia
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Researcher, Endangered Wildlife Trust IENE Member South Africa
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About - Darryl Jones Professor Emeritus, Griffith University
Australia
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Postdoctoral Researcher, University of Freiburg Germany IENE Member Germany
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Research Associate, The Cambridge Conservation Initiative United Kingdom
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Researcher, Universidade Federal do Rio Grande do Sul Brazil
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Researcher, Concordia University Canada
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Director, Minuartia Environmental Consultancy IENE Member Spain
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Conservation Director, WWF Myanmar Myanmar
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Research Director, National Parks Board Singapore
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Executive Director, African Conservation Centre Kenya
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Researcher, China Academy of Transportation Sciences IENE Member China
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Researcher, TESRI Endemic Species Research Institute Taiwan
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Researcher, CESAM Centre for Environmental and Marine Studies IENE Member Portugal
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Project Coordinator, Wild Cats Friendly Roads Project Costa Rica
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Ecologist & Owner, Eco-Resolutions Consultancy USA
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About - Dr. Anthony P Clevenger
Researcher, WTI, Montanta State University Canada
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Chief of Conservation, NGO USA
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