Journal of Chemical Ecology

, Volume 27, Issue 8, pp 1677–1690

Chemical Composition of Precloacal Secretions of Liolaemus Lizards

Authors

  • Carlos A. Escobar
    • Departamento de Ciencias Ecológicas, Facultad de CienciasUniversidad de Chile
  • Antonieta Labra
    • Departamento de Ciencias Ecológicas, Facultad de CienciasUniversidad de Chile
  • Hermann M. Niemeyer
    • Departamento de Ciencias Ecológicas, Facultad de CienciasUniversidad de Chile
Article

DOI: 10.1023/A:1010470611061

Cite this article as:
Escobar, C.A., Labra, A. & Niemeyer, H.M. J Chem Ecol (2001) 27: 1677. doi:10.1023/A:1010470611061

Abstract

Interspecific chemical variation of precloacal pore secretions of Liolaemus lizards was characterized in 20 species, and intraspecific chemical variation was characterized using nine individuals of L. bellii. The latitude (Chile, 18° to 33° South latitude) and altitude (100 to 4350 m.a.s.l.) of the capture sites were recorded, as well as the number of precloacal pores of each lizard. Secretions were analyzed by GC-MS. A total of 49 compounds were found distributed among the 20 species of Liolaemus. Different chemical patterns occurred at intra- and interspecific levels. Compounds belonged to three main families: n-alkanes, long chain carboxylic acids, and steroids. Cholesterol and five carboxylic acids (tetradecanoic, hexadecanoic, hexadecenoic, octadecanoic, and Z-9-octadecenoic) appeared in all species. The number of precloacal pores correlated positively with altitude and negatively with latitude, suggesting that lizards produce more secretions under harsh environments.

Chilean lizardsTropiduridaeLiolaemusprecloacal poresholocrine glands

Copyright information

© Plenum Publishing Corporation 2001