Tag: "fox" at biology news
SFSU Biologist Deciphers Desert Animals' Whistles And Drumbeats
... presence of different predators, say a polecat or fox
versus a snake. Recent research on vervet monkeys and prairie dogs has shown these animals give different calls to indicate a slithering snake or a soaring bird of prey. Their cohorts seem to recognize the differences. For example, vervets dive for c...
New Research On Environmental Pollutants
...xtremely high levels ofPCB in some regions. Arctic fox
also seems to have higher concentrations thanmembers of the same species further south. In the case of polar bear, it waspossible to link pollutants to disrupted hormone levels and lower survival ratesamong the young, believed to be caused by a large...
Ecotourism: Penguins can get used to people
... when agitated by, for instance, the approach of a fox
or other predator. The second measure of stress was the blood level of corticosterone, asteroid hormone that rises with stress and can kill animals if it gets too high. Walker and his colleagues found that after 15 minutes of exposure to people, thep...
Biodiversity may reduce Lyme disease
...s and of competitors such as eastern chipmunks and fox
squirrels. Ostfeld and Keesing suggest that decreasing the forests' fragmentation might also decrease the local incidence of Lyme disease. Increased biodiversity could also reduce the risk of the many other vector-borne diseases, which include plagu...
Extinction claims a furry friend
...actors, including introduced predators such as the fox
and cat, and loss of habitat," he said. Dr Hornsby...versed. "A lot of our parks already have extensive fox
baiting and control programs," said Dr Hornsby. "Cats are very difficult to control, butit's being l...
Researchers building a trap for chromium six
...our membrane system," says Long. "You can't trap a fox
in a trap only big enough for a mouse." The device, called a Selective Ion Trap (SIT), looks like a 35 mm film canister with a membrane at each end. Winstead-Allen explains that the SIT uses a polymer-based liquid membrane for the selective sorption ...
On California's Channel Islands, native predators became prey when feral pigs rearranged the food web
...ing of the food web, threatening the native island fox
with extinction. A team of biologists has now docu...nnel Islands. But they began preying on the island fox
as well, causing the fox
population to plummet not only on Santa Cruz but also on the nearby islands...
New technologies to battle little known, widespread cattle disease
...acteria infecting horses, pigs, chickens, rabbits, fox
and non-human primates. Scientists are unsure of the exact relationship between Johne's and Crohn's. Trek of Westlake, Ohio, developed the new diagnostic machine and Cornell University performed validation testing over the past year. Purdue and othe...
Guns, bats, and cash
...ice, the Chamorro people of Guam regard the flying fox
- a type of bat that can grow up to a four foot wi...ome, and trade in the bats. One species of flying fox
has already been wiped out on the island, and another is on the verge of extinction. In her present...
Highway deaths highest for males Male urban squirrels, that is
...nt professor, both to find out about the 350-or-so fox
squirrels on the campus and to teach undergraduate...ing these populations," Lopez said. He noted that fox
squirrels have become increasingly of interest to biologists as they have adapted to living in citie...
Adirondack interstate underpasses designed for wildlife attract anything but, study says
...s the road? It didn't. And neither did the bear, fox
or coyote, according to a new study by the New York-based Wildlife Conservation Society that says wildlife underpasses designed to keep wildlife off the New York Thruway are not working. The study, published in the Adirondack Journal of Environmental...
Eating bats linked to neurological disease
...e. A new study suggests that they gorged on flying fox
bats that in turn had feasted on neurotoxin-laden cycad seeds. "Through the consumption of cycad-fed flying foxes, the Chamorro people may have unwittingly ingested large quantities of cycad neurotoxins," say Clark Monson of the University of Hawaii,...
Hypothesis linking flying foxes to high incidence of ALS/PDC gets boost from new study
...-year-old museum specimens of the Guamanian flying fox
may shed more light on why Guam's Chamorro people once had an extremely high incidence of ALS-parkinsonism dementia complex (ALS/PDC). At the same time, the study, supported by the ALS Association, introduces the role that biomagnification of neuroto...
Species vs. Species
...is also the World Conservation Union (IUCN) island fox
coordinator. The San Clemente loggerhead shrike is..., which is listed as threatened in California. The fox
has declined by about 60% in the last decade and was down to about 400 in the year 2000. In 1999, fo...
Unlocking the genetics and evolution of the dog could prove beneficial for humans
...trade-offs found in dogs are present in the modern fox
too. Researchers believe that the fox
and dog diverged 7-10 million years ago, and while they have yet to trace the genetic loci for the f...
More than 300 critically endangered species completely unprotected, new study shows
...world's rarest fruit bats, the Comoro black flying fox
(Pteropus livingstonii), from the Comoros Islands in the Indian Ocean and the Handley's slender mouse opossum (Marmosa handleyi) from Colombia. AMPHIBIANS: Of the 5,454 amphibian species analyzed, 913 are gap species. Of those, 411 are threatened. C...
Counting foxes before the last tally-ho
...en Harris, from the University of Bristol, counted fox
faeces in more than 400 one-kilometre squares acro... combined with estimates of the number of faeces a fox
produces each day, and with the proportion of faeces that can be found during field surveys, to prod...