Chemical composition of precloacal secretions of two Liolaemus fabiani populations: Are they different?
Author
dc.contributor.author
Escobar, Claudio M.
Author
dc.contributor.author
Escobar, Carlos A.
Author
dc.contributor.author
Labra, Antonieta
Author
dc.contributor.author
Niemeyer, Hermann M.
Admission date
dc.date.accessioned
2018-12-20T14:10:48Z
Available date
dc.date.available
2018-12-20T14:10:48Z
Publication date
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2003
Cita de ítem
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Journal of Chemical Ecology, Volumen 29, Issue 3, 2018, Pages 629-638
Identifier
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00980331
Identifier
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10.1023/A:1022858919037
Identifier
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https://repositorio.uchile.cl/handle/2250/154434
Abstract
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The chemical composition of secretions of precloacal pores from two populations of the lizard Liolaemusfabiani (Puilar and Punta-Brava) were compared. This is an endemic species from the Atacama Salt Flat (26°46'S 68° 14'W; 2400 m) in northern Chile, restricted to the internal lakes of the salt flat. Interpopulational differences in the chemical composition of the secretions were expected considering that populations have genetic differences and are subject to different thermal conditions. By using GC-MS, a total of 44 compounds were found belonging to three categories: n-alkanes, long-chain carboxylic acids, and steroids. Six compounds were found in all the individuals studied: tetradecanoic, pentadecanoic, hexadecanoic, hexadecenoic, octadecanoic, and octadecenoic acids. The secretions of both populations had similar types and proportions of the different compounds, except for cholesterol and hexanoic acid, which were more abundant in the Puilar population. These differences can be a