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, ...

Oct 16, 2012 not rated yet 0

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 not rated yet 0

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 th ...

Mar 15, 2012 not rated yet 0