Reproductive isolation among three populations of the genus Grammostola from Uruguay (Araneae, Theraphosidae)

Ethological isolation of individuals from three allopatric Grammostola populations of Uruguay, G. iheringi (Keyserling, 1891), G. mollicoma (Auserer, 1875) northern population and G. mollicoma southern population, was tested under laboratory conditions. Grammostola iheringi behaved as a reproductive isolated species, whereas the two populations of G. mollicoma did not show ethological isolation between them. However, ecological isolating reproductive mechanisms could be acting on G. mollicoma populations. Artificial burrows seem to be important for reproductive isolation in these species.

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Bibliographic Details
Main Authors: Postiglioni,Rodrigo, Costa,Fernando G.
Format: Digital revista
Language:English
Published: Museu de Ciências Naturais 2006
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212006000100013
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