03 January, 2013

On the widespread Isometrus maculatus and its adaptive ability

Wilson Lourenco and John Clodusley-Thompson have published a short note discussing the distribution of Isometrus maculatus (DeGeer, 1778) (Buthidae) and possible limitations to the species invasive abilities.

Isometrus maculatus is the most widely distributed scorpion in the world being found in most tropical and subtropical coastal regions. The species' natural origin is probably Sri Lanka, as this is the only place where the species is found under natural conditions inland. The scorpion has probably spread through human activities and its remarkable reproductive potential is probably the most possible explanation for the species distributional success.

The species has rarely been collected in desert and arid areas, and Lourenco and Cloudsley-Thompson conclude that dry climate is probably the main limitation for this opportunistic species' ability to colonize new areas.

No abstract.

Lourenco WR, Cloudsley Thompson JL. Introduction and Adaptation of Isometrus maculatus (DeGeer, 1778) (Scorpiones, Buthidae) in arid and desert formations. Newsl Br Aarchnol Soc. 2012 (125):8-9.

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