News tagged with population

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Honeybees show tipping points

Parasites, lack of food, cold snaps, pesticides, and poor management all can stress honeybee colonies, making it difficult to pin their collapse on a single source. However, in controlled field tests, honeybee ...

May 16, 2014 5 / 5 (6) 0

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