Pronghorn overpasses in Wyoming, USA

This video from the USA is called Pronghorn Antelope.

From Wildlife Extra:

New bridges and tunnels to protect pronghorn from traffic in Wyoming

New crossings will help to maintain ancient migration route

October 2012. Scientists with the Wildlife Conservation Society (WCS) have announced the successful use of newly constructed overpasses that provide safe passage for thousands of migrating pronghorn over U.S. Highway 191 in Trapper’s Point, Wyoming, and surrounding areas. The event marks a new era of reduced risk of wildlife/vehicular collisions in the area, and the culmination of years of cooperation among conservationists, government officials, land and transportation planners, and others.

The locations of the structures completed this autumn were informed by data collected by WCS, the Wyoming Cooperative Fish and Wildlife Research Unit, and the Wyoming Game and Fish Department, and identified the pronghorn’s preferred migration routes and highway crossing points.

Migration study

WCS has long studied an approximately 93-mile (150 km) migration of pronghorn between wintering grounds in the Upper Green River Basin and summering grounds in Grand Teton National Park (GTNP)-a migration corridor known as the “Path of the Pronghorn.” WCS worked with many partners including Grand Teton National Park and Bridger-Teton National Forest to bring about the designation of the Path as the first and only federally designated migration corridor in the United States.

Satellite tracking

As part of their research, WCS scientists used GPS tracking collars to collect information over the course of five years on the location and timing of pronghorn movements and impediments to migration such as fences, roadways, pipelines, and other energy development infrastructure.

Using this information, the Wyoming Department of Transportation (WYDOT) was able to locate and build the structures as part of an effort to protect motorists and provide safe passage for migrating pronghorn and other wildlife in the Greater Yellowstone Ecosystem. Trapper’s Point has historically been a “bottleneck” problem area for the pronghorn each year, causing thousands of the animals to cross traffic lanes on U.S. Highway 191, and creating a perilous situation for humans and wildlife alike.

WCS Associate Conservation Scientist Jon Beckmann said, “This truly was a collaborative effort that brought together many groups with many areas of expertise to accomplish a worthy goal that benefits both wildlife and people. Congratulations to WYDOT for committing the resources to this project and seeing it through successfully.”

Eight crossings and high barrier fencing

The overpass at Trapper’s Point is one of eight safe passages constructed by WYDOT along a 13-mile stretch of highway. In addition, eight-foot high barrier fencing has been placed along the highway to channel the animals to the crossing points. In all, 2 overpasses and 6 underpasses have been constructed and will accommodate not only pronghorn, but also mule deer, moose , elk and other animals. The two overpass structures were specifically located and designed to address pronghorn migration conservation needs.

“The importance of these overpasses and their use by pronghorn cannot be overstated,” said WCS Conservation Scientist Joel Berger. “They eliminate the danger of collisions and will help to preserve a spectacular element of our natural heritage-the longest mammal migration in the 48 contiguous United States. This is an accomplishment that all Americans can celebrate.”

Only 700,000 pronghorn alive – Down from 35 million in 19th century

Pronghorn are North America’s fastest land animals. They numbered an estimated 35 million in the early 19th century. Today, about 700,000 remain and more than half of those live in Wyoming. The animals migrate to find food, mating opportunities, suitable habitat, and other resources they need to survive.

While WCS scientists study pronghorn throughout western Wyoming, those that follow the Path are of particular interest. They travel farther than the others and their continued journeys to and from GTNP ensure that the park’s ecosystem remains ecologically whole and that a 6,000 year-old migration remains a part of the national heritage.

WCS’s work on the Path of the Pronghorn has been made possible by the National Fish and Wildlife Foundation and other generous supporters.

Steps in the right direction for conservation: here.

Related articles

• Animal Overpasses Let Pronghorn Cross US Highways (livescience.com)
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• Fastest US land animal, the pronghorn, gets help crossing Wyoming highway (usnews.nbcnews.com)
• Green Blog: Safe Passage for Pronghorns (green.blogs.nytimes.com)
• One Small Step For Pronghorns (raxacollective.wordpress.com)
• Pronghorn population doing well in Jackson area (billingsgazette.com)
• You’ve Got to Run Like An Antelope….Outta Control…..These pronghorn antelope are celebrating – and so are deer, elk, moose, bears, bobcats, lynx and other wildlife throughout Wyoming’s Upper Hoback region (sunsetdaily.wordpress.com)
• Jackson Hole pronghorn population nearing record (thewildlifenews.com)