Environmental Conditions during Development Affect Sexual Selection through Trait-Fitness Relationships
Environmental Conditions during Development Affect Sexual Selection through Trait-Fitness Relationships
复制标题
发育过程中的环境条件通过特质-适应性关系影响性选择
DOI：
10.1086/717294
复制
发表时间：
2022
期刊：
影响因子：
--
通讯作者：
McPeek, Mark A.
中科院分区：
文献类型：
--
作者：
Siepielski, Adam M.;Gómez-Llano, Miguel;McPeek, Mark A.
性选择可以通过种群间环境特征的空间变异来塑造。通过环境效应产生的种群间性选择差异可以通过四种途径形成：平均绝对适合度的差异、表型平均值或方差的差异、绝对适合度-性状函数关系的差异。由于性选择只发生在成年阶段，大多数研究都集中在确定环境特征，影响这些指标的健身和性状分布的成年人。然而，这些成年特征也可能受到生命早期阶段所经历的环境因素的影响，这些环境因素随后塑造了成年阶段的性选择轨迹。在这里，我们调查了两种Enallagmadamselflies形状的雄性体型的性选择在少年（幼虫）阶段的环境条件下的种群变化。我们发现，捕食压力，湖泊初级生产力和栖息地的可用性相关的环境因素在塑造性选择的空间变异中发挥了作用。这主要是通过环境如何影响绝对健身身体大小协会，而不是平均健身或身体大小的手段和方差的空间变化。这些结果表明，在野生环境中的性选择的基础可以产生的环境条件在繁殖前的生命阶段。
Sexual selection can be shaped by spatial variation in environmental features among populations. Differences in sexual selection among populations generated through the effects of the environment could be shaped via four paths: differences in mean absolute fitness, differences in the means or variances of phenotypes, or differences in the absolute fitness–trait function relationship. Because sexual selection occurs only during the adult life stage, most studies have focused on identifying environmental features that influence these metrics of fitness and trait distributions among adults. However, these adult features could also be affected by environmental factors experienced in early life stages that then shape the trajectory for sexual selection during the adult life stage. Here we investigated how among-population variation in environmental conditions during the juvenile (larval) stage of two species ofEnallagmadamselflies shapes sexual selection on male body size. We found that environmental factors related to predation pressures, lake primary productivity, and habitat availability play a role in shaping spatial variation in sexual selection. This acts mainly through how the environment affects absolute fitness–body size associations, not spatial variation in mean fitness or body size means and variances. These results demonstrate that the underpinnings of sexual selection in the wild can arise from environmental conditions during prereproductive life stages.
登录
查看更多内容
影响因子：
3.3
作者：
Morrissey, Michael B.;Hadfield, Jarrod D.
通讯作者：
Hadfield, Jarrod D.
豆娘的生活史对时间限制的反应规范：对大小和质量的不同影响
影响因子：
1.9
作者：
F. Strobbe;R. Stoks
通讯作者：
R. Stoks
影响因子：
2.1
作者：
D. B. Steele;A. Siepielski;M. McPeek
通讯作者：
M. McPeek
达尔文雀种群的生活史特征和小体型的自然选择
影响因子：
3.3
作者：
T. Price;P. Grant
通讯作者：
P. Grant
豆娘幼虫干扰与利用性竞争的实验分离
影响因子：
4.8
作者：
B. Anholt
通讯作者：
B. Anholt