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Composition of uropygial gland secretions of birds of prey
Author(s) -
Jacob Jürgen,
Poltz Jens
Publication year - 1975
Publication title -
lipids
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.601
H-Index - 120
eISSN - 1558-9307
pISSN - 0024-4201
DOI - 10.1007/bf02532185
Subject(s) - wax , gas chromatography , chemistry , substituent , composition (language) , organic chemistry , stereochemistry , chromatography , philosophy , linguistics
The chemical composition of the uropygial gland secretion of five species of birds of prey was investigated by gas liquid chromatography‐mass spectroscopy technique, and the results are discussed from the chemotaxonomical point of view. The secretion is a complex mixture of monoester waxes, the fatty acids of which are mainly dimethyl‐branched, with the first substituent in 2 position and the other near the methyl end of the molecule. Mono‐, trimethyl‐, and unbranched fatty acids also are observed. The wax alcohols are mainly mono‐ and dimethyl‐substituted. Unbranched alcohols and traces of trimethyl‐substituted alcohols also were detected. Chemotaxonomically, the birds of prey differ from all orders hitherto investigated. The degree of substitution increases from the Falconidae to the Accipitridae .

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