Search Results for: The 1,000
California and Nevada sage-grouse will not be listed under ESA
The U.S. Fish and Wildlife Service announced last week that it will not list the bi-state population of greater sage grouse (Centrocercus urophasianus), a distinct population of the species found...
Environmental groups challenge grazing effects on grizzlies
The Center for Biological Diversity and the Sierra Club filed a lawsuit in late March in federal court against the U.S. Fish and Wildlife Service and the U.S. Forest Service,...
Wild Cam: Human activity blocks African wild dog dispersal
Human structures and roadways present some of the largest barriers to the connectivity of endangered African wild dog populations in southern Africa. Researchers set out on a vast multi-country study...
U.S Fish and Wildlife Service sued to compel bison listing
Three advocacy groups sued the U.S. Fish and Wildlife Service last week, asserting that the agency unlawfully rejected their petition to list the distinct population segment of Yellowstone bison (Bison...
Feral hippos may fulfill long lost ecosystem role
Descendants of hippos imported to Colombia by drug lord Pablo Escobar may actually be fulfilling the ecosystem roles of long-extinct wildlife, according to new research. The handful of hippopotamus (Hippopotamus...
To survive city life, birds benefit from brains or breeding
Birds that thrive in urban environments either have larger brains or the ability to reproduce multiple times throughout their lifespan, researchers found. Past research showed that birds with larger brains...
The Wildlife Society comments on migratory bird rule
The Wildlife Society recently expressed concerns about the new interpretation of the Migratory Bird Treaty Act, which indicates that non-intentional, incidental take and killing of migratory birds is permitted under...
Court rejects jaguar critical habitat designation
A federal appeals court ruled last week that the U.S. Fish and Wildlife Service’s designation of critical habitat for the jaguar (Panthera onca) was invalid, finding that the agency acted...
TWS Issue Statement: Feral Swine in North America
Back to Position Statements page Introduction and Biology Feral swine (Sus scrofa) are members of the domestic swine family Suidae, which is native to Europe and Asia, not North America....
TWS Issue Statement: The Antarctic
Back to Position Statements page The Antarctic continent and surrounding Southern Ocean support unique terrestrial ecosystems and some of the world’s most biologically productive neritic and pelagic food webs. At...