The British Herpetological Society

The Herpetological Journal is the Society's prestigious quarterly scientific journal. Articles are listed in Biological Abstracts, Current Awareness in Biological Sciences,Current Contents, Science Citation Index, and Zoological Record.

 

ISSN 0268-0130


pdf 04.The diet of six species of lizards in an area of Caatinga, Brazil

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Open Access

pp.151-160

Authors: Anthony Santana Ferreira, Adilson de Oliveira Silva, Breno Moura da Conceição
& Renato Gomes Faria

Abstract: We characterised the diets of a community of lizards in the Caatinga area in the Monumento Natural Grota do Angico (MNGA), Sergipe, Brazil. We evaluated food availability during the wet and dry season, and analysed the stomach contents of 427 individuals from six species, identifying plant material and invertebrates to the taxonomic level of Order. In general, different lizard species had similar diets. Isoptera was the most important prey for Ameivula ocellifera, Gymnodactylus geckoides, Lygodactylus klugei and Brasiliscincus heathi, whereas Formicidae was the most important prey for Tropidurus hispidus and Tropidurus semitaeniatus. Prey consumption by each species in dry and wet seasons was similar with regard to prey categories used, but differed in the most commonly consumed orders (except for Brasiliscincus heathi). There was no significant difference between diet and prey availability, with the exception of Collembola and Acari which were rarely consumed. The limited seasonal differences in lizard diets may reflect the abundance and availability of prey.

Keywords: electivity, semiarid, squamata, trophic ecology

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