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Road ecology blog: Warning sign for western leopard toads, South Africa

November 19, 2019 - Road ecology blog: Warning sign for western leopard toads, near Cape Point, Western Cape, South Africa Click here for...
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Road Ecology Blog: Angulate tortoise (Chersina angulata) crossing road, South Africa

November 17, 2019 - Road Ecology Blog: Angulate tortoise (Chersina angulata) crossing road, Cape Point, Table Mountain National Park, Wester...
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Road ecology blog: Warning sign for tortoises, South Africa

November 15, 2019 - Road ecology blog: Warning sign for tortoises, Cape Point, Table Mountain National Park, Western Cape, South Africa C...
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Road ecology blog: Car on road through flowering fijnbos vegetation, South Africa

November 13, 2019 - Road ecology blog: Car on road through flowering fijnbos vegetation, Cape Point, Table Mountain National Park, Western C...
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Road ecology blog: Roadkilled black bear, Flathead Indian Reservation, Montana, USA

May 08, 2019 - Road ecology blog: Roadkilled black bear (Ursus americanus), Hwy 200, Flathead Indian Reservation, Montana, USA C...
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Road ecology blog: Concrete barrier wall, Fisherman Island National Wildlife Refuge

January 14, 2019 - Road ecology blog: Concrete barrier wall along a section of Hwy 13, Fisherman Island National Wildlife Refuge, Virginia.
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Road ecology blog: Vegetation maintenance adjacent to turtle barrier

January 13, 2019 - Road ecology blog: Pamela Denmon (USFWS) demonstrates where the plastic corrugated pipe should be located with short veg...
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Road ecology blog: Plastic corrugated pipe for diamondback terrapins damaged by mowing

January 12, 2019 - Road ecology blog: Plastic corrugated pipe designed as a barrier to keep Northern diamondback terrapins (Malaclemys terr...
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Road ecology blog: Barrier for diamondback terrapin (turtles), Fisherman Island, Virginia

January 11, 2019 - Road ecology blog: Plastic corrugated pipe (6 inches diameter) staked in ground with rebar, Fisherman Island National Wi...
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Road ecology blog: Wildlife guard at access road for Key deer, Florida

December 22, 2018 - Road ecology blog: Wildlife guard for Key deer at access road along US Hwy 1, Big Pine Key, Florida, USA Click here f...
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Road ecology blog: Wildlife guard at fence end on US Hwy 1, Big Pine Key, Florida, USA

December 21, 2018 - Road ecology blog: Wildlife guard at fence end on US Hwy 1, Big Pine Key, Florida, USA Click here for images of mitig...
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Road ecology blog: Wildlife warning signs, Key deer, US Hwy 1, Big Pine Key, Florida, USA

December 20, 2018 - Road ecology blog: Wildlife warning sign, drive with caution, you are entering an endangered species area, US Hwy 1, Big...
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Road ecology blog: It is unlawful to feed the Key deer, Florida

December 19, 2018 - Road ecology blog: Wildlife warning sign for Key deer, It is unlawful to feed the Key deer, No Name Key, Florida, USA...
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Road ecology blog: Wildlife warning sign with spelling error, Florida, USA

December 18, 2018 - Road ecology blog: Wildlife warning sign with spelling error made by concerned citizen, slow down for deers, Big Pine Ke...
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Road ecology blog: Variable message sign for Key deer, Florida, USA

December 17, 2018 - Road ecology blog: Variable message sign, Caution, slow down, Key deer crossing ahead, US Hwy 1, Big Pine Key, Florida,...
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Road ecology blog: Speed bumps to reduce traffic speed for Key deer

December 16, 2018 - Road ecology blog: Speed bump painted like a crosswalk to reduce traffic speed for Key deer, Big Pine Key, Florida, USA...
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Road ecology blog: Wildlife underpass for Key deer, Florida, USA

December 15, 2018 - Road ecology blog: Wildlife underpass for Key deer (8 m wide, 3 m high), US Hwy 1, Big Pine Key, Florida, USA Click...
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Road ecology blog: Speed management for Key deer, radar on trailer, Florida, USA

December 14, 2018 - Road ecology blog: Speed management for Key deer, radar on trailer (during day 45 MPH, during night 35 MPH), US Hwy 1, B...
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Road ecology blog: Speed management for Key deer, parked police car, Big Pine Key, Florida

December 13, 2018 - Road ecology blog: Speed management for Key deer, parked police car, no law enforcement officer present (during day 45 M...
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Road ecology blog: Wildlife fence and barrier wall associated with wildlife underpass

December 12, 2018 - Road ecology blog: Wildlife fence and barrier wall associated with wildlife underpass for Key deer (8 m wide, 3 m high),...
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Road ecology blog: Turtle fence and dry culvert used by turtles, Nebraska

December 10, 2018 - Road ecology blog: Turtle fence and dry culvert used by turtles, Valentine National Wildlife Refuge, Ballard's South, Va...
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Road ecology blog: Amphibian tunnels with open slotted roofs and barrier wall

December 09, 2018 - Road ecology blog: Images below: Amphibian tunnel with open slotted roof (ACO) and barrier or wall for amphibians, inte...
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Road ecology blog: Common toad (Bufo bufo) screens and buckets, The Netherlands

December 07, 2018 - Road ecology blog: Common toad (Bufo bufo) screens and buckets, Rijksstraatweg Elsterstraatweg N225 just west of Elst, U...
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Road ecology blog: Solid plastic fence (Animex) designed as a barrier for herpetofauna

December 06, 2018 - Road ecology blog: Temporary demonstration installation of solid plastic fence (Animex) designed as a barrier for herpet...
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Road ecology blog: Barrier wall for turtles, aligators, snakes and amphibians, Florida, USA.

December 03, 2018 - Road ecology blog: Barrier wall (about 1.2 m tall) for turtles, alligators, snakes and amphibians, Lake Jackson Ecopassa...
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Big camper van 4x4 on dirt road, White Sands National Monument, New Mexico, USA

April 17, 2018 - Camper van 4x4 on dirt road, White Sands National Monument, New Mexico, USA. My friend Jerome provides a reference for...
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Road ecology blog: Warning sign, dust storms, do not stop in travel lanes, New Mexico, USA

April 02, 2018 - Road ecology blog: Warning sign, dust storms, do not stop in travel lanes, New Mexico, USA Click here for images of r...
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Camper van 4x4 on dirt road, White Sands National Monument, New Mexico, USA

April 01, 2018 - Camper van 4x4 on dirt road, White Sands National Monument, New Mexico, USA Click here for images of the camper van o...
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Road ecology blog: Warning sign, dust storms may exist next 15 miles, New Mexico, USA

March 30, 2018 - Road ecology blog: Warning sign, dust storms may exist next 15 miles, New Mexico, USA Click here for images of road...
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Warning sign, deer migration area, next 3 miles, Utah, USA

March 26, 2018 - Warning sign, deer migration area, next 3 miles, Utah, USA Note the mule deer carcass right in front of the sign....
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Warning sign, speed limit 30 mph, watch for wildlife, Colorado, USA

March 22, 2018 - Warning sign, variable message sign, speed limit 30 mph, watch for wildlife, Colorado, USA Click here for other image...
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Wildlife jump-out, Utah, USA

March 20, 2018 - Wildlife jump-out, Utah, USA Click here for more images of wildlife jump-outs or escape ramps. Like Marcel Huijser P...
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Road ecology blog: Wildlife guard at access road, Utah, USA

March 19, 2018 - Road ecology blog: Wildlife guard at access road, Utah, USA Click here for other images of wildlife guards, cat...
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Warning sign for burros (feral donkeys), Nevada, USA

March 09, 2018 - Warning sign for burros (feral donkeys), Nevada, USA Click here for other images of other wildlife or livestock war...
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Road ecology blog: Wildlife overpass, Argentina

October 13, 2017 - Wildlife overpass, Ruta 101, Misiones, Argentina For other images of wildlife overpasses (wildlife only) click here....
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Marcel Huijser drives the camper van, near Glacier National Park, Montana, USA

October 10, 2017 - Marcel Huijser drives the camper van, near Glacier National Park, Montana, USA Click here for images of the camper va...
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Road ecology blog: Natural canopy connectivity, Iguazu National Park, Misiones, Argentina

October 09, 2017 - Road ecology blog: Natural canopy connectivity across Ruta 101, Dirt road, Iguazu falls, Iguazu National Park, Misiones,...
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Road ecology blog: Wildlife overpass, Misiones, Argentina

October 05, 2017 - Road ecology blog: Wildlife overpass, Ruta 101, Misiones, Argentina. There are no fences associated with this overpass...
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Road ecology blog: Wildlife overpass, Ruta 101, Misiones, Argentina

October 03, 2017 - Road ecology blog: Wildlife overpass, Ruta 101, Misiones, Argentina For other images of wildlife overpasses (wildli...
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Road ecology blog: Wildlife warning sign, Attention, Deer Crossing, Next 2 miles, Wyoming

August 17, 2017 - Road ecology blog: Wildlife warning sign, Attention, Deer Crossing, Next 2 miles, Wyoming Image below: next 5 miles...
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Road ecology blog: Wildlife corridor, Night speed limit reduction

August 16, 2017 - Road ecology blog: Wildlife warning sign in mule deer migration area. Wildlife corridor, Night speed limit, 30 min. bef...
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Road ecology blog: Reduced posted speed limit at night in high mule deer collision areas

August 15, 2017 - Road ecology blog: Reduced posted speed limit at night in high collision areas with mule deer, Wyoming Click here to...
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Road ecology blog: The Stuffed Teddy Bear Phenomenon

May 31, 2017 - Road ecology blog: Multi-functional underpass (water, wildlife) and short section of wildlife fencing, US Hwy 89, near D...
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Pronghorn buck, (Antilocapra americana) roadkill, Montana, USA

May 19, 2017 - Pronghorn buck, (Antilocapra americana) roadkill, Montana, USA Click here for other images of animals that were kille...
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Road ecology blog: Pronghorn, (Antilocapra americana) roadkill, Wyoming, USA

April 26, 2017 - Road ecology blog: Pronghorn, (Antilocapra americana) roadkill, Wyoming, USA Click here for other images of animals t...
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Road ecology blog: Wildlife warning signs for woodland caribou

March 14, 2017 - Click here for other images of other wildlife or livestock warning signs. Click here for other images of animals that w...
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Road ecology blog: Animal detection system, Hwy 95, near Bonners Ferry, Idaho, USA

February 21, 2017 - Road ecology blog: Animal detection system, Hwy 95, near Bonners Ferry, Idaho, USA As drivers approach they are first p...
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Road ecology blog: Activated warning sign associated with an animal detection system

February 20, 2017 - Road ecology blog: Activated warning sign associated with an animal detection system, Hwy 95, near Bonners Ferry, Idaho,...
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Road ecology blog: A kilometer post, Nuevo Xcan-Playa Del Carmen highway, Mexico

January 13, 2017 - Road ecology blog: A kilometer post, Nuevo Xcan-Playa Del Carmen highway, Quintana Roo, Mexico Click here for more im...
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Road ecology blog: Canopy crossings for arboreal mammals, Mexico

January 11, 2017 - Road ecology blog: Canopy crossings for arboreal mammals, Nuevo Xcan-Playa Del Carmen highway, Quintana Roo, Mexico. The...
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Road ecology blog: Wildlife fence along Nuevo Xcan-Playa Del Carmen highway, Mexico

January 10, 2017 - Road ecology blog: Wildlife fence along Nuevo Xcan-Playa Del Carmen highway, Quintana Roo, Mexico. The previous road ec...
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Road ecology blog: Wildlife underpasses, Nuevo Xcan-Playa Del Carmen highway, Mexico

January 09, 2017 - Road ecology blog: Wildlife underpasses, Nuevo Xcan-Playa Del Carmen highway, Quintana Roo, Mexico This relatively new...
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Researchers at work: Marcel Huijser checks out wildlife underpass, Mexico

January 06, 2017 - Researchers at work: Marcel Huijser checks out a wildlife underpass, Nuevo Xcan-Playa Del Carmen highway, Quintana Roo,...
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Road ecology blog: Warning sign for strong winds, near Cowley, Alberta, Canada

November 29, 2016 - Road ecology blog: Warning sign for strong winds, near Cowley, Alberta, Canada Image below: Wind turbines, near Pinch...
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Road ecology blog: Silhouetted warning sign for elk, British Columbia, Canada

November 23, 2016 - Road ecology blog: Silhouetted warning sign for elk (Cervus canadensis), British Columbia, Canada. Click here for oth...
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Road ecology blog: Warning sign for flying deer, British Columbia, Canada

November 22, 2016 - Road ecology blog: Warning sign for flying deer (Odocoileus spp.), near Fernie, British Columbia, Canada. Note: someone...
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Road ecology blog: Mitigation measures for long-toed salamander, Waterton, Alberta, Canada

November 21, 2016 - Road ecology blog: Mitigation measures for long-toed salamander (Ambystoma macrodactylum), Waterton Lakes National Park,...
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Road ecology blog: Wildlife underpasses, fences and jump-outs, US Hwy 95, Idaho, USA

November 18, 2016 - Road ecology blog: Wildlife underpasses, fences and jump-outs, US Hwy 95, Bonners Ferry, Idaho, USA Image below: Fernan...
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Road ecology blog: Animal detection systems, Canada

November 16, 2016 - Road ecology blog: Animal detection systems, near Elko and Sparwood, British Columbia, Canada. Image below: Activated w...
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Road ecology blog: Warning sign for bighorn sheep, near Elko, British Columbia, Canada

November 10, 2016 - Road ecology blog: Warning sign for bighorn sheep (Ovis canadensis), near Elko, British Columbia, Canada. Image below...
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Road ecology blog: Bighorn sheep (Ovis canadensis) crossing highway at a fence end

November 08, 2016 - Road ecology blog: Bighorn sheep (Ovis canadensis) crossing highway at a fence end, Hwy 3, Crowsnest Pass, Alberta, Cana...
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Road ecology blog: Warning signs for bears, Waterton Lakes National Park, Alberta, Canada

November 04, 2016 - Road ecology blog: Warning signs for bears (black and grizzly, Ursus spp.), Waterton Lakes National Park, Alberta, Canad...
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Road ecology blog: Wildlife trail at fence-end (fence end run).

November 03, 2016 - Road ecology blog: Wildlife trail at fence-end (fence end run), US Hwy 95, Bonners Ferry, Idaho, USA. This is an indicat...
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Road ecology blog: Animal detection system, along US Hwy 95, Bonners Ferry, Idaho, USA

October 26, 2016 - Road ecology blog: Image below: Animal detection system, along US Hwy 95, Bonners Ferry, Idaho, USA Image below: Dop...
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Rocky Mountain wildlife: Bighorn sheep (Ovis canadensis), Crowsnest Pass, Alberta, Canada

October 25, 2016 - Rocky Mountain wildlife: Bighorn sheep (Ovis canadensis), Crowsnest Pass, Alberta, Canada. Click here for other ima...
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Road ecology blog: Animal detection system and underpass, Idaho, USA

October 25, 2016 - Road ecology blog: Animal detection system, along frontage road of US Hwy 95, Chilco, Idaho, USA. This system is manufac...
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Road ecology blog: Bighorn sheep (Ovis canadensis) on and along highway, Alberta, Canada

October 24, 2016 - Road ecology blog: Bighorn sheep (Ovis canadensis) on and along highway at a fence end, Hwy 3, Crowsnest Pass, Alberta,...
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Departing the Pantanal in a convoy of 4 Mitsubishi vehicles, Mato Grosso do Sul, Brazil

July 26, 2016 - Departing the Pantanal in a convoy of four Mitsubishi 4x4 vehicles, Mato Grosso do Sul, Brazil. The experienced drivers...
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Road ecology blog: Low design speed, narrow and curvy road, Rio de Janeiro, Brazil

December 11, 2015 - Road ecology blog: Low design speed, narrow and curvy road, "park road" (estrada-parque) Capelinha-Mauá (RJ-163), near R...
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Road ecology blog: Feral domestic dog on road, near Resende, Rio de Janeiro, Brazil

December 10, 2015 - Road ecology blog: Feral domestic dog on road, "park road" (estrada-parque) Capelinha-Mauá (RJ-163), near Resende, Rio d...
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Road ecology blog: Road signs along "park road" RJ-163, near Resende, Rio de Janeiro, Brazil

December 02, 2015 - Images below: Sign, preserve our fauna and flora, "park road" (estrada-parque) Capelinha-Mauá (RJ-163), near Resende, Ri...
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Road ecology blog: Suggestions for improving canopy crossings, Rio de Janeiro, Brazil

December 01, 2015 - Road ecology blog: Suggestions for improving canopy crossings for arboreal mammals, "park road" (estrada-parque) Capelin...
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Road ecology blog: Retaining wall at land slide site, Rio de Janeiro, Brazil

November 30, 2015 - Road ecology blog: Retaining wall at a site where land slides used to occur, -park road- (estrada-parque) Capelinha-Mauá...
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Road ecology blog: Canopy crossings for arboreal mammals (RJ-163) Rio de Janeiro, Brazil

November 27, 2015 - Road ecology blog: Canopy crossings for arboreal mammals, "park road" (estrada-parque) Capelinha-Mauá (RJ-163), near Res...
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Brazilian landscapes: Atlantic forest, near Resende, Rio de Janeiro, Brazil

November 25, 2015 - Brazilian landscapes: Atlantic forest (Mata Atlântica) along "park road" (estrada-parque) Capelinha-Mauá (RJ-163), near...
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Road ecology blog: wildlife fencing and wet and dry culverts, Rio de Janeiro, Brazil

November 24, 2015 - Road ecology blog: wildlife fencing and wet and dry culverts, Culvert under -park road- (estrada-parque) Capelinha-Mauá...
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Road ecology blog: Wildlife warning signs, near Resende, Rio de Janeiro, Brazil

November 20, 2015 - Road ecology blog: This road was recently upgraded from an unpaved road to a paved road. The road goes through a protect...
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Road ecology blog: White-tailed Jack Rabbit (Lepus townsendii) roadkill, Wyoming, USA

July 25, 2015 - Road ecology blog: White-tailed Jack Rabbit (Lepus townsendii) roadkill, Wyoming, USA. Click here for other images of a...
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Road ecology blog: The Everglades, near Shark Valley, Florida, USA

July 09, 2015 - Road ecology blog: The Everglades, near Shark Valley, Florida, USA. Click here for other other images from Florida. Li...
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Road ecology blog: Unmitigated section of the Tamiami Trail blocking sheet flow

July 09, 2015 - Road ecology blog: Unmitigated section of the Tamiami Trail (US Hwy 41) blocking sheet flow from north to south in this...
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Road ecology blog: A long bridge elevating Tamiami Trail restoring sheet flow

July 08, 2015 - Road ecology blog: A long bridge (1 mi, 1.6 km) elevating the Tamiami Trail (US Hwy 41) allowing for restoration of shee...
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The making of the sage grouse images: Hauling gear to camp, Montana, USA

April 20, 2015 - Images below: Marcel Huijser pushes cart with camping and photo gear to the vicinity of a sage grouse lek, Montana, USA...
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The making of the sage grouse images: On my way to where the sage grouse are, Montana, USA

April 20, 2015 - The making of the sage grouse images: On my way to where the sage grouse are, Montana, USA. Click here for images and v...
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Road ecology blog: Snowmobiles in Yellowstone National Park

January 28, 2015 - Road ecology blog: Snowmobiles in Yellowstone National Park. The situation with snowmobiles in Yellowstone National Par...
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Life in Brazil: Bombeiros and cloud forest

September 03, 2014 - Text by Bethanie Walder Marcel couldn’t have known, when he put on his bright yellow shirt on Saturday, that he might b...
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Road ecology blog: Bison cow and calf crossing road, Yellowstone, Wyoming, USA

June 06, 2014 - Road ecology blog: Bison cow and calf (Bison bison) crossing road, Yellowstone National Park, Wyoming, USA. Click here...
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Road ecology blog: Bridge across Merced River and floodplains, California, USA

May 12, 2014 - Road ecology blog: Bridge across Merced River and floodplains, Hwy 49, at Old Bagby, Lake McClure Recreation Area, Calif...
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Road ecology blog: Challenging winter driving conditions, Hwy 27, Norway

March 19, 2014 - Road ecology blog: Challenging winter driving conditions, Hwy 27, South of Rondane National Park, Norway. Click here fo...
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Mining in the Gobi: Oyu Tolgoi mine at night, Ömnögovi, Mongolia

October 28, 2013 - Mining in the Gobi: Oyu Tolgoi mine at night, Ömnögovi, Mongolia. Click here for images of mining and roads in the Gobi...
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Road ecology blog: Wildlife underpass, (Mud Creek), US Hwy 93, Montana, USA

June 25, 2013 - Road ecology blog: Wildlife underpass, (Mud Creek), US Hwy 93, Flathead Indian Reservation, Montana, USA. This flight w...
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Road ecology blog: Wildlife overpass US Hwy 93, Flathead Indian Reservation, Montana, USA

June 18, 2013 - Road ecology blog: Wildlife overpass and underpass US Hwy 93, Flathead Indian Reservation, Montana, USA. This flight wa...
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Road ecology blog: Mule deer (Odocoileus hemionus) roadkill, Montana, USA

October 26, 2012 - Mule deer (Odocoileus hemionus) roadkill, Montana, USA. Click here for other images of the dead mule deer. Like Marcel...
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Road ecology blog: Great horned owl (Bubo virginianus) roadkill, Montana, USA

October 24, 2012 - Great horned owl (Bubo virginianus) roadkill, Montana, USA. Click here for other images of the dead great horned owl. L...
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Road ecology blog: Mule deer fawn (Odocoileus hemionus) roadkill, Montana, USA

October 22, 2012 - Mule deer fawn (Odocoileus hemionus) roadkill, Montana, USA. Click here for additional images of the dead mule deer fawn...
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