Full length paper

La lacertofauna de Mendoza: lista actualizada, distribución y riqueza

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Cuadernos de Herpetología 22 (1): 5-24, 2008 corbalan@lab.cricyt.edu.ar

Abstract

Mendoza province has a rich fauna of lizards that belongs to the Leiosauridae, Liolaemidae, Teiidae, Scincidae and Gekkonidae families. Some of them are typical of the Monte, Puna, Payunia or Andean region, whereas some others are widespread, inhabiting two or more ecosystems. The objective of this work is to perform an updating of the Mendoza lizard fauna and to determine the most highly species-rich areas related to these four ecosystem types. Data from the source localities of 43 species were compiled from herpetological collections and bibliography. These localities were then geo-referenced and mapped. First, an assessment of the richest areas was made using points of occurrence. A second analysis was made using predictive distribution models. These models were generated using 26 environmental variables. Thus, richness was estimated by overlapping the potential areas in 4.6 km grids. Results obtained from both methods indicate that the highest lizard species richness occurs in Payunia. This result is probably due to its higher environmental heterogeneity in relation to the other ecosystems, since Payunia is considered an ecotone area between Patagonia and Monte phytogeographic areas. A similarity analysis (Morisita Index) shows that similarity among ecosystems regarding species composition is low, with two groups being formed: Monte and Patagonia on one hand, and Puna and Andean ecosystems on the other.

Key words:

lagartijas; reptiles; diversidad; ecosistemas; Payunia

Received: Oct. 23, 2007 ▪ Accepted: Apr. 03, 2008

Associate Editor: F. Cruz
Corbalán, V. & Debandi, G. 2008. La lacertofauna de Mendoza: lista actualizada, distribución y riqueza. Cuadernos de Herpetología 22: 5-24.