News tagged with population

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Progeny of old parents have fewer offspring

Reproduction at old age involves risks that may impact one's own life and may impose reduced biological fitness on the offspring. Such evidence, previously obtained in humans and other taxa under laboratory ...

Mar 09, 2015
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Mercury pollution danger for arctic ivory gulls

A paper in Proceedings of the Royal Society B today says that mercury levels in arctic ivory gulls have risen almost 50 fold over the last 130 years. Scientists think this increase in mercury pollutants could ...

Mar 20, 2015
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Coyotes filling wolves' niche in southeastern US

It's believed that wolves once roamed the southeastern United States before they were eliminated by overhunting and habitat loss. Now the region has a new top dog, the coyote, which may fill the role once ...

Mar 26, 2015
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Field tests needed to help control feral cats

Local wildlife ecologists have analysed research into feral cat habitat use from around the world in a bid to better manage the pest, which is one of the major threats to biodiversity globally.

Mar 20, 2015
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Elusive mouse edges close to extinction

A University of Queensland researcher who has caught the endangered northern hopping mouse on camera for the first time believes the tiny mammal could be closer to the brink of extinction than previously ...

Mar 23, 2015
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