Multi-maternal nesting behaviour and a potential adaptive signal for its evolution in the Argentinean geckonid lizard Homonota borelli

Godoy, Manuel and Pincheira-Donoso, Daniel (2009) Multi-maternal nesting behaviour and a potential adaptive signal for its evolution in the Argentinean geckonid lizard Homonota borelli. Journal of Biological Research, 12 . pp. 221-224. ISSN 1790-045X

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Item Type:Article
Item Status:Live Archive

Abstract

Multi-maternal nesting behaviours (or communal nesting) represent a remarkable expression of prenatal parental care. In squamate reptiles (lizards and snakes) this mode of parental care has been reported in different lineages. Nevertheless, the causes behind its origin remain largely un- explored, and hence, poorly understood. Here, we study parental care in the Argentinean gecko- nid species Homonota borelli. We found that this lizard nests communally, which represents the first report of communal nesting for this species and one of the first within the genus. The facts that the number of potentially suitable places for nesting is much higher than the number of nests observed and that eggs from the same nests eclose asynchronously, suggest that the evolu- tion of this behaviour would be mediated by the fitness advantages of oviposition in sites where eggs have previously been laid. Therefore, communal nesting in H. borelli would be adaptive.

Keywords:Gekkonidae, Reptilia, Serpentes, Squamata
Subjects:C Biological Sciences > C182 Evolution
Divisions:College of Science > School of Life Sciences
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ID Code:9011
Deposited On:01 May 2013 16:50

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