News tagged with population decline

Great apes, small numbers

Sumatran orangutans have undergone a substantial recent population decline, according to a new genetic study, but the same research revealed the existence of critical corridors for dispersal migrations that, if protected, ...

dateOct 16, 2012 in Plants & Animals
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Civil war endangers Myanmar's ailing tigers

Efforts to stop Myanmar's tigers being hunted to extinction are under threat from a civil war raging in a region home to the world's biggest sanctuary for the endangered cats, experts warn.

dateJun 22, 2012 in Ecology
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From yeast, researchers learn how populations collapse

In the early 1990s, overfishing led to the collapse of one of the most bountiful cod fisheries in the world, off the coast of Newfoundland. Twenty years later, the cod population still has not recovered, dramatically affecting ...

dateJun 01, 2012 in Ecology
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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 ...

dateApr 03, 2012 in Ecology
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An early spring drives butterfly population declines

Early snow melt in the Colorado Rocky Mountains initiates two chains of events resulting in population decline in the mormon fritillary butterfly, Speyeria mormonia. One effect of snow melt date was readily detectable, but ...

dateMar 15, 2012 in Ecology
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