Tag: population

Bumblebees gather pollen twice as fast as honeybees, but new research from Colorado suggests that climate change may be straining the wildflowers available to bumblebees and threatening their populations’ survival....

Montana Fish, Wildlife and Parks officials say they plan to change the way they estimate the state’s wolf (Canis lupus) populations, switching to a model that relies on data gathered...

Due to habitat conversion and predator eradication, North Carolina’s red wolves (Canis rufus) have for decades remained some of the world’s most endangered canids. A new study suggests that many...

For decades, biologists have struggled to accurately count wildlife populations. They’ve had to combine high-quality data from smaller sites with less reliable information from broader areas. Recent research by Indian...

Across the greater sage-grouse’s range, conifers annually invade 60,000 acres of the bird’s sagebrush (Artemisia spp.) habitat. New research from northwestern Utah indicates that removing these trees boosts the success...

The elk or wolf – which comes first in population management? For optimal results, according to a recent study, the answer is actually both predator and prey together. “By managing...

After agricultural and urban expansion fragmented the habitat of the greater prairie chicken (Tympanuchus cupido pinnatus) in Illinois and pushed it to the brink of disappearing from the state, translocations...

Dubbed “the enigma of the Pacific” until ornithologists finally tracked down its nest in the 1970s, the marbled murrelet (Brachyramphus marmoratus) is a seabird that forages by the coast and...

New findings suggest that intensive oil and gas operations may be causing long-term local population declines in the ferruginous hawk (Buteo regalis), the largest species of American hawk, which soars...

As monarch butterfly (Danaus plexippus) populations plummet, new research suggests that efforts to save them could benefit from determining where they’re born and focusing conservation work there. “Our data suggests...