Female mate choice based on pheromone content may inhibit reproductive isolation between distinct populations of Iberian wall lizards  

作　　者：Marianne GABIROT Pilar LOPEZ Jose MARTIN 

机构地区：[1]Departement Ecologie Comportementale, (U.M.R. 5175), CEFE-CNRS, 1919 Route de Mende, F34293 Montpellier, Cedex 5, France [2]Departamento de Ecologia Evolutiva, Museo Naeional de Ciencias Naturales, C.S.I.C., Jos6 Guti6rrez Abascal 2, 28006 Madrid, Spain

出　　处：《Current Zoology》2013年第2期210-220,共11页动物学报（英文版）

摘　　要：The Iberian wall lizard Podarcis hispanica forms part of a species complex with several morphologically and geneti- cally distinct types and populations, which may or may not be reproductively isolated. We analyzed whether female mate choice based on males＇ chemical signals may contribute to a current pre-mating reproductive isolation between two distinct populations of P. hispanica from central Spain. We experimentally examined whether females choose to establish territories on areas scent-marked by males of their own population, versus areas marked by males of the other population. Results showed that fe- males did not prefer scent-marks of males from their own population. In contrast, females seemed to attend mostly to among-individual variation in males＇ pheromones that did not differ between populations. Finally, to test for strong premating re- productive isolation, we staged intersexual encounters between males and females. The population of origin of males and females did not affect the probability nor the duration of copulations. We suggest that the different environmental conditions in each population might be selecting for different morphologies and different chemical signals of males that maximize efficiency of communication in each environment. However, females in both populations based mate choice on a similar condition-dependent signal of males. Thus, male signals and female mate choice criteria could be precluding premating reproductive isolation between these phenotypically ＂distinct＂ populations [Current Zoology 59 （2）： 210-220, 2013].

关 键 词：Podarcis hispanica Chemical communication Mate preferences Mate recognition Species recognition CONFLICT 

分 类 号：Q987[生物学—遗传学] S763.421[生物学—人类学]