What’s killing desert bighorn lambs?
When New Mexico removed desert bighorn sheep (Ovis canadensis mexicana) from the state’s list of threatened and endangered species, biologists had a pretty good sense of what caused adult sheep...
Disease linked to major reduction in elk pregnancy
The disease brucellosis has caused problems for cattle and bison (Bison bison), but it’s effects in elk (Cervus canadensis) have seemed minor. Recent research, however, suggests an additional impact on...
Study documents wolves’ role transforming Yellowstone
When gray wolves (Canis lupus) were reintroduced in Yellowstone National Park in 1995, nobody could have predicted the sweeping changes they would help bring to the ecosystem, from reducing elk...
Study takes ‘vital signs’ of Yellowstone ecosystem
If you want to know how healthy an ecosystem is, wouldn’t it help to have a list a vital signs — the sort of summary a doctor uses to check...
JWM: Wildfire ‘a primary threat’ to sage-grouse
When wildfires scorched 1 million acres of greater sage-grouse (Centrocercus urophasianus) habitat in the Great Basin in 2012, it affected the survival of the birds, but it offered researchers a...
Study finds birds that migrate long distances survive better in winter
Using weather radar to study North American bird migrations, researchers at the Cornell Lab of Ornithology made a surprising discovery: birds leaving the United States on long, hazardous journeys to...
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Putting a number to bee habitat
When Rick Johnstone went about improving bee habitat in a utility easement at Maryland’s Patuxent Wildlife Refuge, he could see the difference taking place on the ground within a year....
Wolves help shape how long elk keep antlers
In the late winter of 2005, TWS member Matt Metz started noticing a particular dynamic between elk (Cervus canadensis) and wolves (Canis lupus) in Yellowstone National Park, where he worked...
Plenary speakers look to future wildlife concerns
At its 25th Annual Conference, The Wildlife Society is celebrating the conservation successes we’ve achieved, but that doesn’t mean the work is done. As speakers took the stage at the...
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