Tag: dispersal

October 20, 2021

Why adolescent giraffes ditch their initial social group

Adolescent giraffes keen on leaving their mother’s roost don’t always disperse far and wide in search of mating opportunities. In fact, some stay put and just switch social communities in...

May 26, 2021

Filling piping plover research holes

Since piping plovers were listed under the Endangered Species Act in 1985, researchers have been uncertain about some population dynamics and connectivity among the breeding groups that could help the...

April 26, 2021

Traveling doesn’t pose mortality risk for white-tailed deer

White-tailed deer that disperse to new areas have similar rates of mortality as those that stay put, researchers found. That wasn’t what they expected to discover. They figured dispersal would...

February 7, 2020

Researchers say Mexican ranch likely source of Ariz. ocelots

A breeding population of ocelots just 30 miles south of the border is likely the source of occasional cat sightings in Arizona, biologists say. The population is the northernmost known...

January 3, 2020

A red squirrel dilemma: should they stay or should they go?

TWS member April Martinig can relate to red squirrels. Finding an apartment in Edmonton, Alberta is about as tough as it is for a squirrel in Yukon to find a...

January 11, 2018

Human light disorients and jeopardizes turtle hatchlings

Imagine baby turtles flapping their flippers on miniature treadmills before going for a swim in bright pink bathing suits. That was the scene in a Florida lab as biologists tried...

November 1, 2017

For Yellowstone grizzlies, paths may lead out of isolation

When Yellowstone grizzlies lost their threatened status last June, advocates for the bears feared they were too isolated to sustain their populations without federal protections. The grizzlies (Ursus arctos) are...

October 27, 2017

Corridors key to protecting species, conservationists say

From monarchs to grizzlies, America’s wildlife is dwindling due to climate change and habitat destruction, conservationists said at a conference this week in Washington, and wildlife corridors are crucial to...

August 30, 2017

Salamanders’ breeding season affects dispersal, gene flow

Recent research on salamander gene flow in the forests of Missouri indicates that when deciding which ponds to protect on a landscape to conserve amphibian populations, biologists should pay attention...

May 11, 2017

NPS adds two young males to mountain lion study

The Santa Monica Mountains of Los Angeles, where mountain lions (Puma concolor) prowl, comprise one of the only large metropolitan areas in the world inhabited by wild big cats. The...