RT Journal Article T1 Interpopulational and seasonal variation in the chemical signals of the lizard Gallotia galloti A1 García Roa, Roberto A1 Megia Palma, Rodrigo Manuel A1 Ortega, Jesús A1 Jara, Manuel A1 López, Pilar A1 Martín, José AB 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. PB PeerJ Publishing SN 2167-8359 YR 2017 FD 2017 LK https://hdl.handle.net/20.500.14352/113118 UL https://hdl.handle.net/20.500.14352/113118 LA eng NO García-Roa R, Megía-Palma R, Ortega J, Jara M, López P, Martín J. 2017. Interpopulational and seasonal variation in the chemical signals of the lizard Gallotia galloti. PeerJ 5:e3992 https://doi.org/10.7717/peerj.3992 NO This work was funded by projects of the Spanish Ministerio de Economía y Competitividad (CGL2011-24150/BOS, CGL2012-40026-C02-01 and CGL2014-53523-P). NO Ministerio de Economía y Competitividad (España) DS Docta Complutense RD 12 abr 2025