Seasonal variation of lipids in femoral gland secretions of male green iguanas (Iguana iguana) |
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| Authors: | Allison C. Alberts Thomas R. Sharp Dagmar I. Werner Paul J. Weldon |
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| Affiliation: | (1) Center for Reproduction of Endangered Species, Zoological Society of San Diego, P.O. Box 551, 92112 San Diego, California;(2) Department of Chemistry, Texas A & M University, 77843 College Station, Texas;(3) Fundacion Pro Iguana Verde, Apartado 692-1007, San José, Costa Rica;(4) Department of Biology, Texas A & M University, 77843 College Station, Texas;(5) Department of Herpetology, National Zoological Park Smithsonian Institution, 20008 Washington D.C.;(6) Present address: Analytical Research and Development, Pfizer Central Research, Eastern Point Road, 06340 Groton, Connecticut |
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| Abstract: | Femoral gland secretions were collected from 21 captive adult male green iguanas (Iguana iguana) in Orotina, Costa Rica, and San Diego, California, during the breeding (November) and nonbreeding (March) seasons. Lipids were extracted with methylene chloride, weighed, separated by thin-layer chromatography, and analyzed by gas chromatography-mass spectrometry. Free and esterified C14-C26 fatty acids, 5 -cholestan-3 -ol (epico-prostanol), cholest-5-en-3-ol (cholesterol), cholest-5-en-24-methyl-3-ol (campesterol), cholesta-5,22-dien-24b-ethyl-3-ol (stigmasterol), cholesta-8,24(5)-dien-4,4,14-trimethyl-3-ol (lanosterol), cholest-5-en-24-ethyl-3-ol (-sitosterol), and two uncharacterized sterols were indicated. More lipids were recovered from femoral gland secretions obtained during the breeding than the nonbreeding months, indicating that secretion deposits may be more detectable during the mating season. |
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| Keywords: | Femoral glands lipids fatty acids sterols pheromones
Iguana iguana |
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