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Road ecology blog: Gate, push button to open, Addo Elephant National Park, South Africa

December 02, 2019 - Road ecology blog: Gate, push button to open, leaving picknick area, Addo Elephant National Park, Eastern Cape, South Af...
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Road ecology blog: Penguin fence, Simon's Town, Western Cape, South Africa

December 01, 2019 - Road ecology blog: Penguin fence to keep penguins out of gardens, a golf course, and a road, Simon's Town, Western Cape,...
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Road ecology blog: Electrified strings to exclude elephants from a waterhole

November 29, 2019 - Road ecology blog: Electrified strings to exclude elephants from a waterhole, Addo Elephant National Park, Eastern Cape,...
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Elephant fencing, Addo Elephant National Park, Eastern Cape, South Africa

November 26, 2019 - Elephant fence, Addo Elephant National Park, Eastern Cape, South Africa. Originally developed in 1954 by Graham Armstron...
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Road ecology blog: Elephant fence, Addo Elephant National Park, Eastern Cape, South Africa

November 23, 2019 - Road ecology blog: Elephant fence, Addo Elephant National Park, Eastern Cape, South Africa. Developed in1954 by Graham A...
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Fence and willow shrubs in a snowy landscape, Big Hole Valley, Montana, USA

April 12, 2019 - Fence and willow shrubs in a snowy landscape, Big Hole Valley, Montana, USA Fence and willow shrubs in a snowy landsc...
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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: At-grade crossing opportunity for large mammals

December 11, 2018 - Road ecology blog: At-grade crossing opportunity for large mammals at a gap in the wildlife fence with reduced posted sp...
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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: Amphibian tunnel and barrier wall for amphibians

December 08, 2018 - Road ecology blog: Amphibian tunnel with open slotted roof and barrier wall for amphibians (integrated into roadbed), De...
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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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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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Road ecology blog: Snow fences, west of Lusk, Wyoming

May 02, 2017 - Road ecology blog: Snow fences, west of Lusk, Wyoming Click here for more images of wind, water, flooding, sand, sn...
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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: Wildlife warning signs for bighorn sheep (Ovis canadensis), Montana, USA

November 19, 2016 - Road ecology blog: Wildlife warning signs for bighorn sheep (Ovis canadensis), Montana, USA. Click here for other ima...
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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: 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: 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: Mitigation for bighorn sheep, near Thompson Falls, Montana, USA

October 27, 2016 - Road ecology blog: Mitigation measures for bighorn sheep, near Thompson Falls, Montana, USA. This section of Hwy 200 nee...
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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: 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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Road ecology blog: Researchers at work for a turtle project

April 15, 2016 - Road ecology blog: Researchers at work for a turtle project, Valentine National Wildlife Refuge, Nebraska, USA Image be...
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Road ecology blog: Gaps in wildlife fences, Brazil

August 04, 2015 - Road ecology blog: Gaps in wildlife fences, Brazil. Click here for images of wildlife fencing. Click here for images o...
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Road ecology blog: Livestock warning sign, Open range, loose stock, Wyoming, USA

July 28, 2015 - Road ecology blog: Livestock warning sign, Open range, loose stock, Wyoming, USA. Click here for other images of other...
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Road ecology blog: Hole in wildlife fence in median near underpass, São Paulo, Brazil

January 16, 2015 - Road ecology blog: Hole in wildlife fence in median near underpass, SP-225 near Brotas, São Paulo, Brazil. This is in t...
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Road ecology blog: Livestock warning sign, Minas Gerais, Brazil

December 11, 2014 - Road ecology blog: Livestock warning sign, near Vargem Bonita, Parque Nacional da Serra da Canastra, Minas Gerais, Brazi...
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Road ecology blog: Who needs fence posts? Termites will do the job just fine!

December 06, 2014 - Road ecology blog: Termite mound covering a livestock fence along a dirt road, near São José do Barreiro, Parque Naciona...
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Road ecology blog: Sign advertising the installation of a capybara fence, Brazil

September 07, 2014 - Road ecology blog: Sign advertising the installation of a wildlife fence, fence for the protection from wildlife, (cerca...
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Road ecology blog: Wildlife jump-out or escape ramp, Wyoming, USA

July 23, 2014 - Road ecology blog: Wildlife jump-out or escape ramp, US Hwy 191, North of Daniel Jct, near Pinedale, Wyoming, USA. This...
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Road ecology blog: Gate next to double wide cattle guard, Wyoming, USA

July 22, 2014 - Road ecology blog: Gate next to double wide cattle guard, US Hwy 191, North of Daniel Jct, near Pinedale, Wyoming, USA...
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Road ecology blog: Multifunctional underpass, US Hwy 191, near Pinedale, Wyoming, USA

July 21, 2014 - Road ecology blog: Multifunctional underpass for water, and at times, for livestock, US Hwy 191, North of Daniel Jct, ne...
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Road ecology blog: cattle guard to exclude wild ungulates from fenced road, Wyoming, USA

July 17, 2014 - Road ecology blog: Double wide cattle guard to exclude wild ungulates from fenced road corridor, US Hwy 191, North of Da...
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Road ecology blog: Boulders to reduce water velocity, California, USA

May 30, 2014 - Road ecology blog: Boulders to reduce velocity of water running down slope, near Sonora, California, USA. This is at an...
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Road ecology blog: Wildlife guard with escape ramp, near Kootwijk, The Netherlands

May 06, 2014 - Image below: Mandatory maximum speed limit 60 km per hour zone, at wildlife guard (cattle guard), near Kootwijk, The Net...
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Road ecology blog: Swing gate, The Netherlands

May 02, 2014 - Road ecology blog: Swing gate, set at an angle so it closes through gravity, The Netherlands. This fence keeps red deer...
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Road ecology blog: Street light for bicycle path under wildlife overpass, The Netherlands

April 30, 2014 - Road ecology blog: Street light for bicycle path under wildlife overpass Oud Reemst, south of Otterlo, The Netherlands....
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Road ecology blog: Bicycle path under wildlife overpass "Oud Reemst", The Netherlands

April 29, 2014 - Road ecology blog: Bicycle path under wildlife overpass "Oud Reemst" (about 35 m wide), south of Otterlo, The Netherland...
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Road ecology blog: Sign on overpass, rest area for animals, no access, The Netherlands

April 25, 2014 - Road ecology blog: Sign on wildlife overpass Oud Reemst (about 35 m wide), rest area for animals, no access, south of Ot...
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Road ecology blog: Fence for mouflon, horses and cattle on overpass, The Netherlands

April 24, 2014 - Road ecology blog. Fence on top of wildlife overpass Oud Reemst (about 35 m wide), to keep mouflon, horses and cattle fr...
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Road ecology blog: Pond and root wads at wildlife overpass, The Netherlands

April 23, 2014 - Road ecology blog: Pond and root wads on approach of wildlife overpass Oud Reemst (about 35 m wide), south of Otterlo, T...
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Road ecology blog: Snug fit wildlife fence on wildlife overpass, The Netherlands

April 22, 2014 - Road ecology blog: Snug fit wildlife fence and plank on top of wildlife overpass Oud Reemst (about 35 m wide), south of...
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Road ecology blog: Wildlife overpass "Oud Reemst", The Netherlands

April 21, 2014 - Road ecology blog: Wildlife overpass "Oud Reemst" (about 35 m wide), south of Otterlo, The Netherlands (completed 2012).
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Road ecology blog: Snug fit of a gate at a wildlife fence, The Netherlands

April 17, 2014 - Road ecology blog: Snug fit of a gate at a wildlife fence, south of Otterlo, The Netherlands. The snug fit discourages a...
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Road ecology blog: Wildlife fence, south of Otterlo, The Netherlands

April 16, 2014 - Road ecology blog: Wildlife fence, south of Otterlo, The Netherlands. Click here for more images of wildlife fencing....
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Road Ecology blog: Seasonal barriers and pittfalls for common toads, The Netherlands

April 02, 2014 - Seasonal amphibian barriers for common toads (Bufo bufo), Soest, The Netherlands. Note that there are pitfalls (buckets)...
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Road ecology blog: landscape bridges (tunnels) in Norway

March 18, 2014 - Road ecology blog: landscape bridges (tunnels) in Norway. There are no strict rules on how to classify a wildlife cross...
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Road ecology blog: Six wildlife overpasses in Norway

March 17, 2014 - Road ecology blog: Six wildlife overpasses in Norway. For other images of wildlife overpasses click here. For images o...
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Road ecology blog: Moose wildlife fence along the E6 motorway, near Ljugskile, Sweden

March 14, 2014 - Road ecology blog: Moose (Alces alces) wildlife fence along the E6 motorway, near Ljugskile, Sweden. Click here for mor...
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Road ecology blog: Wildlife guard for tule elk, California, USA

December 13, 2013 - Road ecology blog: Wildlife guard for tule elk (Cervus canadensis nannodes), Point Reyes National Seashore, California,...
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Road ecology blog: Dead mule deer, stuck between fence and wing wall underpass

December 12, 2013 - Mule deer (Odocoileus hemionus) got stuck between wildlife fence and the wing wall associated with a wildlife underpass...
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Road ecology blog: Wildlife jump-out or escape ramp, Arizona, USA

September 23, 2013 - Road ecology blog: Wildlife jump-out or escape ramp, Arizona, USA. Note the drainage pipe in the retaining wall. Click...
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Road ecology blog: Retaining wall at wildlife underpass, Arizona, USA

September 19, 2013 - Road ecology blog: Retaining wall to allow for a wider flat area at wildlife underpass, Arizona, USA. Click here for mo...
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Road ecology blog: Wildlife jump-out with plank on top, Arizona, USA

September 18, 2013 - Road ecology blog: Wildlife jump-out with plank on top, Arizona, USA. Wildlife jump-out with plank on top, Arizona, USA...
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Road ecology blog: One-way gate to escape from fenced road corridor, Arizona, USA

August 30, 2013 - Road ecology blog: A one-way gate designed to allow wildlife to escape from the fenced road corridor, Arizona, USA. One...
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Road ecology blog: Escape opportunity for small animals under wildlife guard, Arizona, USA

August 26, 2013 - Road ecology blog: Combined drainage and escape for small animals under wildlife guard, Arizona, USA. Combined drainage...
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Road ecology blog: Wildlife guard at access road US Hwy 93, Arizona, USA

August 26, 2013 - Road ecology blog: Wildlife guard at access road US Hwy 93, Arizona, USA. On the second image: Blocked concrete edge at...
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Road ecology blog: Wildlife fence, US Hwy 93, NW Arizona, USA

August 21, 2013 - Road ecology blog: Wildlife fence designed for desert bighorn sheep (Ovis canadensis nelsoni), US Hwy 93, NW Arizona, US...
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Road ecology blog: Virtual cattle guard, Arizona, USA

July 30, 2013 - Road ecology blog: Painted stripes on pavement as a virtual cattle guard, Hwy 89A, east of Jacob Lake, Arizona, USA....
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Road ecology blog: Warning sign, Open range, cattle, next 30 miles, Hwy 67, Arizona, USA

July 28, 2013 - Road ecology blog: Warning sign, Open range, cattle, next 30 miles, Hwy 67, North of Grand Canyon National Park, Arizona...
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Road ecology blog: Wildlife jump-out or escape ramp, SR 260, east of Payson, Arizona, USA

July 22, 2013 - Road ecology blog: Wildlife jump-out or escape ramp, SR 260, east of Payson, Arizona, USA. Wildlife jump-outs or escape...
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Road ecology blog: Wildlife fence with metal posts, near Payson, Arizona, USA

July 16, 2013 - Road ecology blog: Wildlife fence with metal posts as a barrier for deer (Odocoileus spp.) and elk (Cervus canadensis) a...
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Road ecology blog: modification to wildlife guard at access road

June 12, 2012 - Last month I wrote about wildlife guards with standard bars and modified bridge grate, and I also reported on a modifica...
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