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Journal of Chemical Ecology

, Volume 18, Issue 5, pp 703–712 | Cite as

Seasonal variation of lipids in femoral gland secretions of male green iguanas (Iguana iguana)

  • Allison C. Alberts
  • Thomas R. Sharp
  • Dagmar I. Werner
  • Paul J. Weldon
Article

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, 5β-cholestan-3α-ol (epico-prostanol), cholest-5-en-3β-ol (cholesterol), cholest-5-en-24-methyl-3β-ol (campesterol), cholesta-5,22-dien-24b-ethyl-3β-ol (stigmasterol), cholesta-8,24(5α)-dien-4,4,14α-trimethyl-3β-ol (lanosterol), cholest-5-en-24-ethyl-3β-ol (β-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.

Key Words

Femoral glands lipids fatty acids sterols pheromones Iguana iguana 

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References

  1. Alberts, A.C. 1989. Ultraviolet visual sensitivity in desert iguanas: Implications for pheromone detection.Anim. Behav. 38:129–137.Google Scholar
  2. Alberts, A.C. 1990. Chemical properties of femoral gland secretions in the desert iguana, Dipsosaurus dorsalis.J. Chem. Ecol. 16:13–25.Google Scholar
  3. Alberts, A.C. 1991. Phylogenetic and adaptive variation in lizard femoral gland secretions.Copeia 1991:69–79.Google Scholar
  4. Alberts, A.C. 1992. Chemical and behavioral studies of femoral gland secretions in iguanid lizards.Brain Behav. Evol. In press.Google Scholar
  5. Alberts, A.C.,Pratt, N.C., andPhillips, J.A. 1992. Seasonal productivity of lizard femoral glands: Relationship to social dominance and androgen levels.Physiol. Behav. In press.Google Scholar
  6. Atland, P.D. 1941. Annual reproductive cycle of the male fence lizard.J. Elisha Mitchell Sci. Soc. 57:73–83.Google Scholar
  7. Burghardt, G.M., Allen, B.A., andFrank, H. 1986. Exploratory tongue-flicking by green iguanas in laboratory and field, pp. 305–321,in D. Duvall, D. Müller-Schwarze, and R.M. Silverstein (eds.). Chemical Signals in Vertebrates, Vol. 4. Plenum Press, New York.Google Scholar
  8. Cogger, H.G. 1978. Reproductive cycles, fat body cycles, and sociosexual behaviour in the Mallee dragon,Amphibolurus fordi (Lacertilia: Agamidae).Aust. J. Zool. 26:653–672.Google Scholar
  9. Cole, C.J. 1966. Femoral glands in lizards: A review.Herpetologica 22:199–206.Google Scholar
  10. Dugan, B. 1982. The mating behavior of the green iguana,Iguana iguana, pp. 320–341,in G.M. Burghardt and A.S. Rand (eds.). Iguanas of the World. Noyes, Park Ridge, New Jersey.Google Scholar
  11. Duvall, D. 1986. A new question of pheromones: Aspects of possible chemical signaling and reception in the mammal-like reptiles, pp. 219–138,in I.N. Hotton, P.D. MacLean, J.J. Roth, and E.C. Roth (eds.). The Ecology and Biology of the Mammal-Like Reptiles. Smithsonian Institution Press, Washington, D.C.Google Scholar
  12. Ebling, F.J. 1977. Hormonal control of mammalian skin glands, pp. 17–33,in D. Müller-Schwarze and M.M. Mozell (eds.). Chemical Signals in Vertebrates. Plenum Press, New York.Google Scholar
  13. Fergusson, B., Bradshaw, S.D., andCannon, J.R. 1985. Hormonal control of femoral gland secretion in the lizard,Amphibolurus ornatus. Gen. Comp. Endocrinol. 57:371–376.Google Scholar
  14. Gabe, M., andSaint Girons, H. 1976. Contribution à la morphologie comparée des fosses nasales et de leurs annexes chez les lépidosoriens.Mem. Mus. Natl. Hist. Nat. Ser. A 98:1–87.Google Scholar
  15. Gasc, J.P., Lageron, A., andSchlumberger, J. 1969. Morphologie, histologie et histochimie des glandes fémorales chez un individu mâle deCtenosaura acanthura (Shaw) (Reptilia, Sauria, Iguanidae), suivi de réflexions sur le rôle des glandes fémorales chez les Lézards.Morphol. Jahrb. 114:572–590.Google Scholar
  16. Goodwin, T.W. 1985. Biosynthesis of plant sterols, pp. 175–198,in H. Danielsson and J. Sjovall (eds.). Sterols and Bile Acids. Elsevier, Amsterdam.Google Scholar
  17. Gorman, M.L. 1976. A mechanism for individual recognition by odour inHerpestes auropunctatus (Carnivora: Viverridae).Anim. Behav. 24:141–145.Google Scholar
  18. Lazell, J.D. Jr. 1973. The lizard genusIguana in the Lesser Antilles.Bull. Mus. Comp. Zool. 145:1–28.Google Scholar
  19. Long, A.R., Massie, S.J., andTyznik, W.J. 1988. Rapid direct extraction derivatization method for the determination of acylglycerol lipids in selected sample matrices.J. Food Sci. 53:940–942.Google Scholar
  20. Matthey, R. 1929. Caractères sexuels secondaires du lézard male.Bull. Soc. Vaud. Sci. Nat. 57:71–81.Google Scholar
  21. Padoa, E. 1933. Ricerche sperimentali sui porti femorali e sull' epididimo della lucertola (Lacerta muralis Laur.) considerati come caratteri sessuali secondari.Arch. Ital. Anat. Embriol. 31:205–252.Google Scholar
  22. Rand, A.S., andGreene, H.W. 1982. Latitude and climate in the phenology of reproduction in the green iguana,Iguana iguana, pp. 142–149,in G.M. Burghardt and A.S. Rand (eds.). Iguanas of the World. Noyes, Park Ridge, New Jersey.Google Scholar
  23. Regamey, J. 1932. Caractères sexuels secondaires duLacerta agilis Linné.Bull. Soc. Vaud. Sci. Nat. 57:589–591.Google Scholar
  24. Regamey, J. 1935. Les caractères sexuels du lézard (Lacerta agilis L.)Rev. Suisse Zool. 42:87–168.Google Scholar
  25. Rodda, G.H. 1991. SexingIguana iguana.Bull. Chicago Herp. Soc. 26:173–175.Google Scholar
  26. Rodda, G.H. 1992. The mating behavior ofIguana iguana. Smithson. Contrib. Zool. In press.Google Scholar
  27. Schwenk, K. 1992. The evolution of chemoreception in squamate reptiles: A phylogenetic approach.Brain Behav. Evol. In press.Google Scholar
  28. Van Devender, R.W. 1982. Growth and ecology of spiny-tailed and green iguanas in Costa Rica, with comments on the evolution of herbivory and large body size, pp. 162–183,in G.M. Burghardt and A.S. Rand (eds.). Iguanas of the World. Noyes, Park Ridge, New Jersey.Google Scholar
  29. Van Wyk, J.H. 1990. Seasonal testicular activity and morphometric variation in the femoral glands of the lizardCordylus polyzonus polyzonus (Sauria: Cordylidae).J. Herpetol. 24:405–409.Google Scholar
  30. Weldon, P.J., Dunn, B.S., McDaniel, C.A., andWerner, D.I. 1990. Lipids in the femoral gland secretions of the green iguana, Iguana iguana.Comp. Biochem. Physiol. 95B:541–543.Google Scholar

Copyright information

© Plenum Publishing Corporation 1992

Authors and Affiliations

  • Allison C. Alberts
    • 1
    • 4
  • Thomas R. Sharp
    • 2
  • Dagmar I. Werner
    • 3
  • Paul J. Weldon
    • 4
    • 5
  1. 1.Center for Reproduction of Endangered SpeciesZoological Society of San DiegoSan Diego
  2. 2.Department of ChemistryTexas A & M UniversityCollege Station
  3. 3.Fundacion Pro Iguana VerdeSan JoséCosta Rica
  4. 4.Department of BiologyTexas A & M UniversityCollege Station
  5. 5.Department of HerpetologyNational Zoological Park Smithsonian InstitutionWashington D.C.

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