Tech

The new migration map acts as a tool to help the western tycoon

Credit: CC0 public domain

Mule deer’s life-and-death journey during the movement of the second longest tycoon in North America resulted in the ability to pass through fences. This is a discovery made by scientists who use wildlife GPS tracking technology to map the movement of western animals. With unprecedented details.


The United States Geological Survey’s Arizona, Idaho, Montana, Nevada, Utah, and Wyoming Crossing Corridors Atlas focus efforts to reduce man-made obstacles along the journey of elks, murdica, antelopes, and other animals. And wildlife advocates say.

Miles Moretti, Chairman of the Salt Lake City-based Muldia Foundation, said: Funded several studies. “This gives us unprecedented information, which in turn drives our policy.”

Moretti, a former wildlife biologist, went out every few weeks to look for animals wearing radio collars. Today’s scientists can track animals from computers in near real time, allowing them to collect much more data with far fewer problems.

They see big western animals chasing spring greens to higher altitudes and returning to the lowlands to avoid the worst cold and snow in winter. Some mavericks meander on their own wavy computer lines. Most people chase a crowd, or literally a herd, in a migratory corridor, a type of animal highway.

“Large highways are used by many herds, and once they are identified, they are important targets for conservation,” said Matthew Kaufman, NASGS Chief Scientist for the Mapping Project.

Human development (houses, roads, fences, oil fields, gas fields, mining operations) is increasingly disrupting Western migration, and what is at stake for animals that wildlife observers and hunters value. It may be that you hardly know what it is.

Mule deer, for example, grew up in the area decades ago when housing development surged at the Wyoming ski excursion in Jackson Hall, where Mike was a writer and wildlife photographer who guided hunters. Eastman says.

“Mule deer are really sensitive to many people in the area, and it’s like pinching them,” Eastman said. “They are like rainbow trout and salmon, and you can’t climb there because the dam is in the way.”

Fences that block mule deer (white-tailed deer’s big-eared cousin) and pronghorn antelopes are deadly. Roads such as Interstate 80 from Wyoming to California also support and kill large moving animals.

Some animals, such as migratory birds, can genetically inherit knowledge about when and where to migrate, while others learn from elders. Studies suggest that reintroduced populations of Western giants require decades to rediscover migration pathways.

Still, remarkable migration continues in the west.

For the past decade, Kaufman and colleagues have used GPS to map the second longest 300-mile (500 km) round-trip mule deer in North America to travel between deserts and alpine regions each year. Western Wyoming.

The science-based conservation project included the purchase of $ 2.1 million of 0.5 square miles (1.5 square kilometers) of land allocated for housing development near Pinedale, Wyoming. Public and privately funded purchases in 2015 helped 5,000 mule deer continue to pass through the “bottleneck” of movement that narrows the path of animals in towns and lakes.

Before buying, many mule deer had to squeeze a small opening in the fence to travel. The purchase removed the fence for about 3 miles (5 km) and saved the area from development.

Wyoming is also committed to migration research to build dozens of animal underpasses to make roads safer and reduce collisions with 6,000 large animals each year.

The new Mobile Atlas records 26 mobile corridors, 16 travel routes, 25 wildlife sites on the move, and 9 areas of winter animal gathering. It shows:

— In Arizona, highways, including Interstate 40, are affecting the movement of antelopes west of Flagstaff. Meanwhile, the Mule deer, traveling between the Grand Canyon of San Francisco Peaks and the summer range north of Flagstaff, must fight the highways crowded with visitors to the Grand Canyon National Park.

— Drought and attacks by wolves and grizzly bears have reduced elk movement by more than 30 miles (50 km) between Yellowstone National Park and the hills west of Cody, Wyoming. The Atlas also includes a map of the movements of Bison and Moose in and around Yellowstone.

— In northeastern Nevada, a mule deer with fences and gold mines moving between the Pequop Mountains in winter and the Jarbidge Mountains in summer, despite the construction of wildlife elevated and underpasses on I-80 and US 93. I am challenging.

The Atlas itself does not support policies regarding the handling of animal movements, but includes “science only,” Kaufman said. Still, policy makers are paying attention.

According to Doug Brimeier of Wyoming, a prickly bottom that is low enough for mule deer to jump and high enough for antelope to scramble in projects such as wildlife agencies replacing fences. Various public and private funds are available to secure the wire Wildlife Coordinator in the Game and Fish sector.

“We can put together our suggestions and use the atlas to show that these areas are important,” Brimeyer said.

In 2018, then Secretary of the Interior Ryan Zinke set up a multi-state wildlife corridor mapping team led by Kaufmann. To date, US authorities have not designated wildlife corridors that could affect oil and gas leasing and wind power projects in the vast western federal territories.

Wyoming plans to use the data to continue its non-stick approach to carrots to protect the transition. In February, Governor Mark Gordon made other plans to designate three mule deer migration corridors, and state authorities would encourage but not enforce support from landowners.

“These maps can show threats and solutions, and we now have an entire toolbox full of tools that can be used to maintain these transition corridors,” says Kaufman.

Volume 2 of the Atlas, detailing dozens more routes in California, Colorado, Montana, and Washington, is being prepared for 2021.


New map records the movement of big names in the western United States


© 2020 AP communication. all rights reserved. This material may not be published, broadcast, rewritten, or redistributed without permission.

Quote: The new migration map is from https://phys.org/news/2020-11-migration-tools-big-game-west.html on November 26, 2020 (November 2020) It functions as a tool to support (March 26)

This document is subject to copyright. No part may be reproduced without written permission, except for fair transactions for personal investigation or research purposes. The content is provided for informational purposes only.



The new migration map acts as a tool to help the western tycoon

Source link The new migration map acts as a tool to help the western tycoon

Show More

Related Articles

Back to top button