Tag: "fox" at biology news
Global warming's impact on US plants, animals determined from review of dozens of studies
...es from Edith's checkerspot butterflies to the red fox
have been gradually moving northward or to higher ... to be occurring as the competitively superior red fox
pushes the arctic fox
farther towards the sea. But more subtle changes are also likely to result fro...
Introduced foxes transformed vegetation on Aleutian Islands from lush grasslands to tundra
...930s, when the U.S. government worked to establish fox
farming businesses on the islands. Mostly arctic foxes and smaller numbers of red foxes were introduced to more than 400 islands. Byrd, who has been involved in restoration efforts in the Aleutian islands since 1971, said most of the islands had maj...
NASA technology monitors wildlife habitats from the air
...spotted owls in the Sierra Nevada and the Delmarva fox
squirrel in the mid-Atlantic U.S. have something i...nse forests that might support endangered Delmarva fox
squirrel (DFS) populations. The study was also published in the June 2005 issue of the journal Remot...
Not just the birds
.... "Our results show that the ecological effects of fox
introductions extended well beyond the direct reductions of bird populations. We have clear evidence that foxes influence the terrestrial plant community and ecosystem dynamics through one particular route," state the researchers in their study. T...
Arctic marine mammals: The new canaries?
...ree key Arctic apex predators: polar bears, arctic fox
and coastal human residents and the increase in concentration of pollutants such as mercury, cadmium, and selected chlorinated pesticides a process called biomagnification - from one part of a food web to another in these predators and their prey. "...
Alien predators are more dangerous than native predators
...introduction to Australia of predators such as the fox
their impact continues, and ongoing predation pres...rebounded by more than 20-fold, demonstrating that fox
predation had continued to have a devastating impact on bettongs after more than 150 yeas. No native...
Researchers identify gene that plays key role in size of dogs
... from 14 small dog breeds, such as Chihuahuas, toy fox
terriers and Pomeranians, and nine large dog breeds, including Irish wolfhounds, Saint Bernards and Great Danes. Surprisingly, almost all of the dogs from the small breed shared a stretch of DNA that was identical to that found in small Portuguese wa...
Fruit bats are not 'blind as a bat'
...ods and cones", says Mueller. The studied flying fox
species (genus Pteropus) were shown to have two spectral cone types, the so-called blue cones that detect short-wave light, and the so-called green cones that detect middle-to-long-wave light. With these two cone types, flying foxes have the prerequi...
Foxes get frisky in the far north
...ters of the dens, DNA fingerprints showed that the fox
cubs were the offspring of a single male and female. But in a quarter of the cases, the arctic foxes proved to be less exclusive, with one litter providing the first genetic evidence of polyandry (females having multiple male mates at one time) with ...