News tagged with population

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Colonization of Brazil by the cattle egret

In recent years the cattle egret (Bubulcus ibis) has colonized American continent. Invasive species are a worldwide problem and studies are devoted to assess the damage they cause to local species popula ...

May 09, 2014 not rated yet 0

Isle Royale wolf decline boosts moose

A scientific report says the wolf population of Isle Royale National Park in Lake Superior is dangerously low for the third consecutive year, while moose numbers are steadily rising.

Apr 30, 2014 not rated yet 0