© Koninklijke Brill NV, Leiden, 2010 DOI 10.1163/157075610X523288 Animal Biology 60 (2010) 413–421 brill.nl/ab Seasonal variation of prey consumption by Liolaemus barbarae , a highland lizard endemic to Northern Chile Jorge Mella 1 , Carlos Tirado 2 , Arturo Cortés 2,3 , and Miguel A. Carretero 4, * 1 Centro de Ecología Aplicada Ltda., Av. Suecia 3304, Ñuñoa, Santiago, Chile 2 Departamento de Biología, Facultad de Ciencias, Universidad de La Serena, Casilla 599, La Serena, Chile 3 Centro de Estudios Avanzados en Zonas Áridas, Casilla 599, La Serena, Chile 4 CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, Campus Agrário de Vairão, 4485-661 Vairão, Portugal Abstract Liolaemus barbarae is a small liolaemid lizard (SVL: 56 mm) endemic to the high Andes of northern Chile. Diet and prey availability were assessed during three seasons of activity (spring 2003, summer 2004, autumn 2004) in order to determine patterns of prey consumption and eventual selection. Liolaemus barbarae was strictly insectivorous preying on ﬂ ying and epigeous insects, mainly chinch bugs (Lygaeidae) and ants. Prey types were consumed in diﬀ erent proportions than available in the environment. Th e selec- tion for Lygaeidae, the most frequent prey consumed, was inversely correlated
Animal Biology – Brill
Published: Jan 1, 2010
Keywords: LIOLAEMUS BARBARAE; LIOLAEMIDAE; DIET; OPTIMAL FORAGING; SEASONALITY; CHILE
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