Tag: "prey" at biology news
UC Riverside's Brian Federici receives Secretary's Annual Honor Award from USDA
...ts such as insect-parasitic wasps and beetles that prey
on pest insects). "I am honored to receive the award," he said. "I see it as a validation of my view that decisions about the safety of our food should be based on evaluation of the scientific evidence. This is in contrast to the often emotional ...
An eye for scent marks
...advantage of visible scent marks. Diurnal birds of prey
also have UV vision, and some years ago Finnish researchers have observed that kestrels discriminate active from abandoned vole trails by UV vision, thus improving their hunting success. It would not be an advantageous evolutionary strategy if rodent...
Study says government counts of tigers in India are inaccurate
...iques such as remote "camera-traps," and measuring prey
densities is essential, the paper argues. The Wildlife Conservation Society is working to save tigers throughout their range, with field conservation projects in not only India, but also the Russian Far East, China, Thailand, Myanmar, Indonesia and M...
Birds and humans have similar 'shopping' habits
...oragers and pollinators of adding or subtracting a prey
species from the environment. "The technique can also potentially be applied to conservation projects, such as those focused on protecting certain species of flower. " "Hummingbirds have an important role in pollinating flowers. If there are two diff...
Finicky snails provide new clues to the evolution of coastal ecosystems
... that few whelks will touch, preferring instead to prey
on bay mussels (Mytilis trossulus), which are less...ave evolved in response to regional differences in prey
availability. Bay mussels are scarce in California, but sea mussels are plentiful. Therefore, natura...
Army ants have defied evolution for 100 million years
...ture's ultimate coalition task force, strike their prey
en masse in a blind, voracious column and pay no...acteristics: the ants are nomadic, they forage for prey
without advance scouting, and their wingless queens can produce up to 4 million eggs in a month. Wh...
Yellowstone wolves, grizzlies and moose 'dysfunctional' study says
...irds that rely on these, and the behavior of other prey
species. "Grizzly bears and wolves in Wyoming are currently protected under the Endangered Species Act, which specifies that recovery includes both the species and the ecological functions it once performed," said Berger. "If these species are delis...
SRS research highlights from the Red-Cockaded Woodpecker Symposium
...ng resin, sticky and clear, deters the snakes that prey
on woodpecker eggs and young. Conner's recent rese...arch on red-cockaded woodpecker prey. The data for prey
preference came from examining close to 12,000 photographs from cameras placed at 31 nest cavities a...
First-ever photo of wild Siberian tiger taken in China
...Chinese medicine, along with over-hunting of their prey
species, wiped out populations in China. Yet much of their habitat remained intact. With increased enforcement of hunting laws, WCS scientists were confident that tigers would return. "The photo of a wild tiger in Hunchun Nature Reserve represents...
Field Museum uncovers evidence behind man-eating; revises legend of its infamous man-eating lions
...avior. Once lions establish a pattern and begin to prey
regularly on humans, they can pass it on to their ... of the man-eaters. They discovered hairs from the prey
of the lions, still embedded in their broken teeth 100 years later. The Tsavo lions are shown to ha...
Science picks-leads, feeds and story seeds (January 2003)
...chub is being ganged up on by non-native fish that prey
on and compete with them. To give the chub a break, USGS scientists will use high fluctuating flows to disrupt non-native fish spawning and use electro-fishing techniques to remove non-native fish. The high-fluctuating flows began Jan. 1, 2003, and ...
Polar bear headed for extinction, says University of Alberta scientist
...between forest dens and hunting grounds where they prey
on seals. There are about 15,000 polar bears in northern Canada, accounting for about two-thirds of the world's total population. Derocher shared his views Jan. 6 at a symposium on Arctic biology in Toronto. It was the biggest gathering of Canadian...
In mutually beneficial relationship, slowest-evolving species gains upper hand
...esn't fall behind the evolutionary advances of its prey
and thus miss lunch. That has been termed the "Red Queen effect" after the character in Lewis Carroll's "Through the Looking Glass," who said, "It takes all the running you can do to keep in the same place." Bergstrom and Michael Lachmann, a postdoct...
An unlikely new weapon against a deadly bacteria in oysters: A virus
...g the disease. The scientists isolated phages that prey
naturally on the bacterium from oysters purchased ... specific, with the virus seeking only its natural prey
and thus causing no unexpected outcomes. The research was funded with a $64,000 grant from the U.S. ...
URI biologists study predator-prey relationship between sand shrimp and flounder
...hat would prevent them from becoming a significant prey
item for sand shrimp. With water temperatures, sand shrimp are moving into shallow waters earlier, while juvenile flounder are still vulnerable. In addition, increased water temperature could directly influence the physiology of sand shrimp by enhanc...
Animals can be induced to cooperate if partners reciprocate and benefits accumulate
...ting minutes or hours before predators withdraw or prey
is secured--is the best candidate to exhibit cooperative behavior. By testing pairs of blue jays, Stephens and his colleagues were able to manipulate conditions to see whether reciprocal behavior and/or delayed rewards would lead to a stable pattern ...
Wildlife researcher captures jaguars with camera
...f a wild animal swiftly and methodically attacking prey
with just its claws? Marcella Kelly, assistant wi...hose word "yaguara" means "a beast that kills its prey
with one bound." Kelly uses infrared remotely triggered cameras to photograph jaguars. Because jagua...
New genetic option for thwarting cancer
...or genes to remain disease-free; otherwise we fall prey
to cancer. Indeed, in roughly half of all human tumors, the suppressor gene called p53 is defective. Now, however, in a study reported in today's issue of Genes and Development, University of Illinois at Chicago investigators have shown that we don'...
Genes, neurons, and the Internet found to have some identical organizing principles
... recurring pattern shows that different species of prey
of a given predator often compete over a shared food resource. This food resource is not shared by the predator. Alon's method detects network motifs on the basis of their frequency. Any patterns that are functionally important but not statistically ...
UCLA study shows water reclamation could become an important source of future water supplies
...f habitat loss. Non-native bullfrogs and fish also prey
on them. Rundel highlighted the California Department of Fish and Game's Natural Community Conservation Planning. The program establishes a proactive approach in which both developers and environmentalists communicate at an early stage in the plannin...
1 2 3 4 5 6 7 8 9 10