Colour variation and alternative reproductive strategies in females of the common lizard Lacerta vivipara
Colour variation and alternative reproductive strategies in females of the common lizard Lacerta vivipara
复制标题
胎生蜥蜴雌性的颜色变化和替代繁殖策略
DOI：
10.1111/j.1420-9101.2006.01208.x
复制
发表时间：
2007
影响因子：
2.1
通讯作者：
J. Clobert
中科院分区：
文献类型：
--
作者：
E. Vercken;M. Massot;B. Sinervo;J. Clobert
性别内颜色变异是动物中普遍存在的现象，通常在社会选择中发挥作用。在雄性中，颜色的变化通常与不同生殖策略的存在有关。尽管理论上生态条件有利于女性出现这种替代策略，但相对于对男性策略的关注，女性颜色变化的社会意义较少得到解决。在一个普通的蜥蜴种群中，雌性的腹部颜色有三种：淡黄色、橙色和混合色。这些腹侧的颜色在个体的一生中是稳定的，并且可以遗传给母体。不同腹侧颜色的雌鸟对卵窝大小、卵窝孵化成功率和卵窝性别比的反应不同，个体和环境参数也不同。这种反应模式可能反映了雌性的另一种生殖策略。环境中的空间异质性和密度与频率相关的反馈可能会导致这种替代策略在该种群中出现，并维持雌性的颜色变化。
Within‐sex colour variation is a widespread phenomenon in animals that often plays a role in social selection. In males, colour variation is typically associated with the existence of alternative reproductive strategies. Despite ecological conditions theoretically favourable to the emergence of such alternative strategies in females, the social significance of colour variation in females has less commonly been addressed, relative to the attention given to male strategies. In a population of the common lizard, females display three classes of ventral colouration: pale yellow, orange and mixed. These ventral colours are stable through individual's life and maternally heritable. Females of different ventral colourations displayed different responses of clutch size, clutch hatching success and clutch sex‐ratio to several individual and environmental parameters. Such reaction patterns might reflect alternative reproductive strategies in females. Spatial heterogeneity and presence of density‐ and frequency‐dependent feedbacks in the environment could allow for the emergence of such alternative strategies in this population and the maintenance of colour variation in females.