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Tag: "bird" at biology news

Scientists aim to thwart use of flu as bioweapon

...wild birds infected with the deadly H5N1 strain of bird flu are gradually broadening the scope of that dis...dified for use as a lethal weapon more deadly than bird flu, and ways to prevent that from happening. "Flu viruses are deadly ?witness the 1918 Spanish flu...

Iraq's marshes show progress toward recovery

... native species have returned, including some rare bird species, although their numbers have not rebounded to historical levels. Iraq's marshes were devastated in the 1980s and 1990s by the Hussein regime's campaign to ditch, dike, drain, and burn them. Unable to pursue their traditional means of livelih...

Crucial site for endangered frogs and birds saved

...obally Endangered Santa Marta Parakeet. Another 18 bird species and five threatened amphibians can also only be found there. The site is a vital stopover point for declining neotropical migratory birds that breed in the United States and Canada, such as the Cerulean and Golden-winged Warblers. All three ...

Restoring seagrass beds: Is it for the birds?

Although most people consider bird droppings a nuisance, scientists at the Dauphin Is...r. Ken Heck and Dr. John Dindo will be setting out bird stakes in an effort to revive scarred grassbeds around the popular recreational spot of Robinson Isl...

Not just the birds

...ions 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. The experiment The Aleutian archipelago has over 450 islands in...

Scientists discover dozens of new species in 'Lost World' of western New Guinea

...nts, and an orange-faced honeyeater, the first new bird from the island of New Guinea in more than 60 year...ion and a co-leader of the expedition. "The first bird we saw at our camp was a new species. Large mammals that have been hunted to near extinction elsewhe...

Zebra finches remember songs dad sang

...irst babbling syllables. But eventually, the young bird manages an almost complete copy of his parent's so...ng scientists use the word "tutor" to describe the bird whose song the young bird copies and remembers because they've found that a young songbird will form...

Avian influenza virus in mammals spreads beyond the site of infection to other organ systems

...ue to the agricultural and migratory nature of the bird species infected, including poultry, water fowl, a...nformation). While spread of avian influenza from bird to man is known to occur, as first reported during the 1997 Hong Kong outbreak, human-to-human sprea...

Flu not the only germ threat this time of year

...o on. While the world's attention has migrated to bird flu, not a single person in the western hemisphere has contracted the deadly form of the disease. And though "regular" flu is still a potent threat, expected to kill more than 35,000 people in the United States annually, your sick neighbor or colleag...

Hantavirus found in African wood mouse

...ere's little cause for alarm; this is not the next bird flu. Like each of the more than two dozen other types of hantavirus, Sangassou virus is carried by only one host species--limiting its spread to the natural range of the African wood mouse, from southern Guinea across parts of Sierra Leone, Liberia, ...

Faster immune system testing set to improve poultry quality

...over the world, as highlighted by the emergence of bird flu. Useful research and preventive tool Reduce...able market in Asia due to the current outbreak of bird flu. "We had five potential partners originally but the Slovenes were the only one to be approved,"...

Medical experts: US unlikely to have enough vaccines to stop avian flu

...e enough vaccine or antiviral medication to stop a bird flu pandemic should the virus mutate into a form that can be spread easily from human to human, according to a survey led by researchers at Carnegie Mellon University. The results of the survey will be published in the June 2006 issue of the journal ...

Warbling whales speak a language all their own

...e first order Markov model that is used to analyze bird songs, which are often shorter and simpler in structure than humpback whale songs. The Markov model proved inadequate for the whale song's complex structure. Information theory, in contrast, proved perfect for analyzing humpback whale songs because...

Spring migration of pink-footed geese under threat

...ted geese. They found that any rapid escalation of bird scaring could be catastrophic for the birds, especially for less experienced individuals. According to Klaassen: "The model predicts that if scaring on a large scale is implemented abruptly, it will have severe consequences for the population becau...

Cell barrier shows why bird flu not so easily spread among humans

... Veterinary Medicine, is that existing strains of bird flu must undergo key genetic changes to become the...a. Periodically, animal forms of influenza such as bird flu evolve to become highly contagious human pathogens. Most scientists agree a pandemic of avian i...

CU, USDA team to curb two invasive, poisonous vines

...g reforestation, fragile butterfly populations and bird habitats. The vines are pale and black swallow-wort, and to find a biological control to stem the growth of and their steady conquest of local ecosystems in the northern United States and Canada, Cornell University is teaming up with the U.S. Depart...

There's something fishy about human brain evolution

...d I think it was early humans eating clams, frogs, bird eggs and fish from shoreline environments. This is what created the necessary physiological conditions for explosive brain growth," says Dr. Cunnane, a metabolic physiologist at the University of Sherbrooke in Sherbrooke, Quebec. The evolutionary gr...

Marine mammals are on the frontline of failing ocean health

...ource of infection, as we have seen with the avian bird flu, but they can also be sentinels of pathogen pollution. They are often the first victims of these diseases," says Pat Conrad from the University of California at Davis. "By paying attention to them, it will tell us about our own health and the li...

Mute swan population helps explain longstanding evolutionary question

...stion: whether the number of eggs laid by a female bird ?known as "clutch size" ?changes in accordance with natural selection. "Extensive debate in the literature…was first focused on the question: Why does a population's average clutch size differ from the most productive clutch size?" said researcher A...

'Uniquely human' component of language found in gregarious birds

...heoretically, without limit. So, for example, "The bird sang," can become "The bird the cat chased sang." Following the lead of language theorist Noam Chomsky, linguists have held tha...

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