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PeerJ

Title:		Interpopulational and seasonal variation in the chemical signals of the lizard Gallotia galloti
Author(s):		Garcia-Roa R; Megia-Palma R; Ortega J; Jara M; Lopez P; Martin J;
Address:		"Department of Evolutionary Ecology, National Museum of Natural Sciences (MNCN-CSIC), Madrid, Spain. Laboratory of Evolutionary Ecology of Adaptations, School of Life Sciences, University of Lincoln, Lincoln, United Kingdom"
Journal Title:		PeerJ
Year:		2017
Volume:		20171205
Issue:
Page Number:		e3992 -
DOI:		10.7717/peerj.3992
ISSN/ISBN:		2167-8359 (Print) 2167-8359 (Electronic) 2167-8359 (Linking)
Abstract:		"Communicative traits are strikingly diverse and may vary among populations of the same species. Within a population, these traits may also display seasonal variation. Chemical signals play a key role in the communication of many taxa. However, we still know far too little about chemical communication in some vertebrate groups. In lizards, only a few studies have examined interpopulational variation in the composition of chemical cues and signals and only one study has explored the seasonal effects. Here we sampled three subspecies of the Tenerife lizards (Gallotia galloti) and analyze the lipophilic fraction of their femoral gland secretions to characterize the potential interpopulational variation in the chemical signals. In addition, we assessed whether composition of these secretions differed between the reproductive and the non-reproductive season. We analyzed variations in both the overall chemical profile and the abundance of the two main compounds (cholesterol and vitamin E). Our results show interpopulational and seasonal differences in G. gallotia chemical profiles. These findings are in accordance with the high interpopulational variability of compounds observed in lizard chemical signals and show that their composition is not only shaped by selective factors linked to reproductive season"
Keywords:		Chemical signals Climate Island Scent Semiochemical Steroids Tocopherol;
Notes:		"PubMed-not-MEDLINEGarcia-Roa, Roberto Megia-Palma, Rodrigo Ortega, Jesus Jara, Manuel Lopez, Pilar Martin, Jose eng 2017/12/13 PeerJ. 2017 Dec 5; 5:e3992. doi: 10.7717/peerj.3992. eCollection 2017"