News tagged with bird populations
Related topics: birds
Disappearance of New Zealand birds 100 years ago makes life tough for plants: study
(PhysOrg.com) -- A team of scientists in New Zealand has found the local disappearance of pollinating birds over a hundred years ago is having a detrimental effect on the species they pollinated.
Feb 07, 2011 |
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Elephant bird probably wiped out by nest raiders and habitat loss
(PhysOrg.com) -- Sir David Attenborough has returned to the island of Madagascar to discover the fate of the elephant bird, the largest bird ever to live on Earth, and to make a BBC documentary about it: "Attenborough ...
Dec 21, 2010 |
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House mice put endangered petrels at risk of extinction
Common house mice are demolishing what could be the only breeding population of endangered Atlantic petrels in the world, scientists have found.
May 16, 2012 |
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Counting penguins from space
A new study using satellite mapping technology reveals there are twice as many emperor penguins in Antarctica than was previously thought. The results provide an important benchmark for monitoring the impact ...
Apr 13, 2012 |
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Boy or girl? Understanding how red-tailed hawks migrate
(PhysOrg.com) -- As any resident of upstate New York will tell you, the red-tailed hawk is the most common hawk in North America. Often seen perched on light and telephone poles along major highways, this ...
Jun 27, 2011 |
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New species abound in Peru, but so do threats
Each year, a new bird is found and every four years a new mammal discovered in the Peruvian Amazon, a haven for biodiversity where conservation and danger often go hand in hand.
Dec 28, 2010 |
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Borne on the Wing: Avian Influenza Risk in U.S. Wild Songbirds Mapped
(PhysOrg.com) -- Scientists have discovered that 22 species of passerines--songbirds and perching birds--in the contiguous U.S. are carriers of low-pathogenicity avian influenza. Pathogenicity is the ability ...
Jul 06, 2010 |
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Long-distance journeys are out of fashion: Global warming is causing evolutionary changes in bird migration
(PhysOrg.com) -- The results of genetic studies on migratory birds substantiate the theory that in the case of a continued global warming, and within only a few generations, migratory birds will - subject ...
Apr 20, 2010 |
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Study catches two bird populations as they split into seperate species
A new study finds that a change in a single gene has sent two closely related bird populations on their way to becoming two distinct species. The study, published in the August issue of the American Naturalist, is one of ...
Jul 14, 2009 |
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Study: Indirect transmission can trigger influenza outbreaks in birds
New data on the persistence of avian influenza viruses in the environment has allowed a team of University of Georgia researchers to create the first model that takes into account both direct and indirect transmission of ...
Jun 02, 2009 |
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Flourishing eagles feast on Maine's rare seabirds
(AP) -- Bald eagles, bouncing back after years of decline, are swaggering forth with an appetite for great cormorant chicks that threatens to wipe out that bird population in the United States.
May 16, 2009 |
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Rare crane in first Uganda sighting
A rare crane species never before seen in Uganda has been spotted in the eastern part of the country, the executive director of Nature Uganda told AFP on Thursday.
May 14, 2009 |
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Arctic marine mammals and fish populations on the rise
Arctic marine mammals and fish populations are on the rise, according to a report released on Monday by the the Arctic Council's biodiversity working group at a Montreal conference.
Apr 24, 2012 |
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Is bioenergy expansion harmful to wildlife?
Despite the predicted environmental benefits of biofuels, converting land to grow bioenergy crops may harm native wildlife. Researchers at the Helmholtz Centre for Environmental Research in Leipzig have developed a way to ...
Apr 03, 2012 |
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Hunting could hurt genetic diversity of sandhill cranes, research suggests
(PhysOrg.com) -- As Wisconsin lawmakers debate whether to establish a hunting season for sandhill cranes, they may want to consider more than just the sheer number of birds, suggests a University of Wisconsin-Madison ...
Feb 09, 2012 |
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