Tag: "feral" at biology news

Honeybees In The Wild Nearly Gone In North America

...s across the countryagree that most of the wild or feral honeybees have likely beenannihilated, Tew said. B...es and other wild bees,will step in for the absent feral honeybees and pick up a portionof their pollination duties, Tew said. However, he said, culturingbum...

Biotech Approach To Feral Cat Problem Devised

...nd-year student Michelle Meister-Weisbarth. These feral cats are wreaking havoc on the nation's songbird p...ological balances. Controlling the birth rates of feral cats has proven a vexing task, since conventional spay and neuter techniques require surgery in a co...

'Mean Gene' Found In Africanized Honey Bees

...Mexico in 1988. By 1991, almost 100 percent of the feral honey bees in Mexico carried the African bee DNA. The Africanized bees reached the United States in 1991 and are now found in parts of Texas, New Mexico, Arizona and southern California. There the spread of the Africanized bees has stalled. "Although...

Summer Science: Where Have All The Honeybees Gone? UD 'Bee Guy' Asks Why--From America To The Amazon

...es with them. In the wild, "only 10 percent of all feral honeybee colonies remain within thenortheastern United States," says Caron, who works in UD's 50-year-old apiary orbee farm, "so much biodiversity has been lost." With a Fund for Rural America grant, awarded by the U.S. Department ofAgriculture (USDA...

Russian Queens Bee-Little Mites' Impact

...o [stray] bees," reestablishing a self-sustaining feral community, notes beekeeper Kim Flottum, who edits Bee Culture in Medina, Ohio....

Alien Species Cost U.S. $123 Billion A Year

... America's 63 million domestic cats and 30 million feral cats are believed tokill some 200 million birds a year. At an estimated $30 a bird, that amountsto $6 billion a year in cat damage. -- Dogs bite an estimated 4.7 million people each year, sending 800,000 patientsto the emergency room, resulting ...

USGS Scientists To Speak On Rare Plants And Invasive Species At Santa Barbara Symposium

.... Botanist Katie Chess will discuss the effects of feral pigs on the distributionand recovery of island jepsonia, a native plant that occurs only on five of theCalifornia Channel Islands and Guadelupe Island. Island jepsonia was designateda federal category 2 species in 1993 because of population declines ...

Yale researchers may have solved mystery about why 'Lonesome George' refuses to mate

...h century and the destruction of their habitats by feral animals abandoned on the islands. Lonesome George is so closely related to subspecies from the distant islands of San Cristobal and Espanola that there was suspicion he may actually have originated on one of these islands and been transported to Pint...

Italian wolves haven't gone to the dogs--yet

...f the threats to the species is interbreeding with feral dogs but the Italian wolf population is still pure...es, says Randi. In addition to interbreeding with feral dogs, current threats to European wolves include competition for food and space. Each year, hunters,...

RX for Hawaii's dry forests: no cows and lots of hard work

... been grazed for more than 150 years by cattle and feral goats. To see how grazing affects the dry forests, Cabin and his colleagues compared regeneration of canopy trees in the Kaupulehu Dry Forest Preserve, which has not been grazed for 40 years, to an adjacent area that has been grazed continuously dur...

Chillis - a red hot export?

...h of global warming, they might yet be replaced by feral chillies. Chillies are the fruit of various Capsicum species, a diverse group which produces not only capsicums, which are eaten raw or cooked, but spices such as chilli, prepared by drying the fruit and grinding it to a powder. These spices ...

Bilbies invade central Australia

... to which it has declined through competition with feral animals. Removing these introduced pests from the Arid Zone Recovery site has proved the point. "We have had no known mortality so far mainly due to the success of our fence design which is very good at excluding cats and foxes," said Ms Moseby. "We ...

USGS issues wildlife health alert for foot-and-mouth disease

...ife such as white-tailed deer, other deer species, feral wild pigs, bison, moose, antelope, peccaries, musk ox, caribou, sheep and elk. Dr. Scott Wright, chief of the Diagnostic and Field Response Branch at the USGS National Wildlife Health Center in Madison, Wisc., said that disease specialists at the ce...

Impact of genetically engineered fish subject of U of Minnesota study

...d into natural rivers and wetlands and established feral populations. The project will measure the likelih...duced genetically modified tilapia to the existing feral populations of the fish. The impact of the introduction on other fish populations will also be evalu...

On California's Channel Islands, native predators became prey when feral pigs rearranged the food web

... the paper. At first glance, it might appear that feral pigs are outcompeting the foxes, but the two speci...e changes in food-web dynamics on the islands. The feral pigs enabled golden eagles to colonize the islands by providing an abundant food source, said Roemer...

Ecologist's book on introduced species' destructiveness

...gus is a plant disease spread through Australia by feral pigs, which themselves are non-native down under. Paterson's curse, a weed that invaded Australian pastures, sickens sheep by damaging their livers with plant toxins. Yet the screw-worm fly is a curse to cattle in tropical regions everywhere in the w...

The contraceptive plague

...r spreading lethal diseases. From cats to camels, feral mammals cost Australia hundreds of millions of dol...s it's been in the country. For Australia's worst feral predator, the fox, the PAC CRC team has not been able to identify a virus that doesn't also infect d...

City birds prefer rich neighbors

...feeders... "It could be something as small as the feral and domestic cats and other predators that live in the neighborhoods not just how many people have cats, but how many of them are prowling around wild and are good at catching birds, or whether or not people put bells on their necks... Or it could b...

Invasive aliens

...ams. "Invasive aliens with thrifty genes: Diabetic feral swine on a southeastern coastal barrier island" wi...h fluctuating and unpredictable food sources. The feral pigs are not native to this island off the coast of Georgia; they were brought here centuries ago by...

Species vs. Species

...g areas were inadvertently caught in traps set for feral cats or held in captivity during the breeding seas...am does not do enough to help the birds. While the feral goats and pigs that degraded the island's habitat have been eradicated, there has been little habita...

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