Managing Pets

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In the archipelago of Bermuda two endemic species have been threatened by domestic animals that human occupiers brought along with them. The Bermuda Rock skink (Plestiodon longirostris) are one of the rarest lizards in the world. They are considered to be a critically endangered species living in small scattered groups; there is only one subpopulation […]

Up To Us

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  The polar ice caps will melt completely in twenty years reports the Guardian (1). When this happens, the absent icecaps will no longer affect only the polar bears or penguins or dozens of other species. Without the cooling effect of the ice caps, global warming will accelerate, with all its attendant impacts hitting the […]

Red Devil Crayfish and the Heni’s Emerald Dragonflies

Posted on 34 CommentsPosted in Nature dynamics

Predators usually decrease the number of their prey. The opposite happens with the Heni’s emerald dragonflies (Somatochlora hineana), whose populations are larger when their predators the Red devil crayfish (Cambrus diogenes) is around. Heni’s emerald dragonfly is the only endangered dragonfly in the United States of America. Endangered species are organisms that are likely to […]