Sentences with phrase «smaller wolf populations»

In places like Yellowstone and eastern Washington and Oregon, however, smaller wolf populations are too far removed from the remaining core of the species» distribution to really make a difference in controlling coyote numbers.

Not exact matches

Though wolves are on the upswing in these regions, their populations are likely too isolated to control the pervasive coyote and other small predators.

Washington, Oregon and Utah only have small populations of gray wolves.

Consecutive rabies and distemper outbreaks recently cut one of the smallest known wolf populations down to two individuals, Sillero's team reported in December in Emerging Infectious Diseases.

A combination of increasing human population density, better hunting methods and climate change may have reduced the availability of prey and pushed some wolves towards scavenging, which favoured tameness and smaller size.

For example just a small number of sea otters can determine urchin numbers, or a few grey wolves determine the size of bison, deer or elk populations.

«We found that while hybridisation has not compromised the genetic distinctiveness of wolf populations, a large number of wild wolves in Eurasia carry a small proportion of gene variants derived from dogs, leading to the ambiguity of how we define genetically «pure wolves».

Wolves are relatively uniform in appearance, so the odds of a mutation appearing randomly in a captive population are small.

However, Wolf cited a much smaller estimate of land birds than that used in the scientific article and failed to note that the breeding population is vastly augmented by the annual hatch of young birds, so his «astonishing» revelation is off target.