Relationships among male sexually selected traits in the bean bug Riptortus pedestris (Heteroptera: Alydidae).
Relationships among male sexually selected traits in the bean bug Riptortus pedestris (Heteroptera: Alydidae).
复制标题
豆蝽 Riptortus pedestris（异翅目：Alydidae）雄性性选择特征之间的关系。
DOI：
10.1111/ens.12114
复制
发表时间：
2015
影响因子：
0.9
通讯作者：
Okada Y
中科院分区：
文献类型：
--
作者：
Suzaki Y;Katsuki M;Miyatake T;Okada Y
目前的性选择概念表明，男性生殖成功是由多种性特征决定的。由于多个性征的表达和产生经常相互关联，随之而来的是多个性征之间的正相关或负相关。这些与男性生殖成功相关的性状之间的关系可能在男性生殖策略的进化中至关重要。在这里，我们研究了豆象的性别选择性状之间的表型关系。在这种昆虫中，身体和武器较大的雄性更有可能赢得雄性比赛，而武器较大或求爱率较高的雄性更吸引雌性。个体大小与武器大小呈显著正相关，求偶率与身体大小、武器大小呈显著负相关。我们的结果表明，求偶率和雄性形态之间存在表型权衡。在这种昆虫中，体型较小的雄性可能会在求偶行为上做出更多努力，作为一种替代的交配策略。
Current concepts of sexual selection suggest that male reproductive success is determined by multiple sexual traits. As expression and production of multiple sexual traits are frequently associated with each other, positive or negative correlations among multiple sexual traits ensue. These relationships among traits associated with male reproductive success may be crucial in the evolution of male reproductive strategies. Here, we investigate phenotypic relationships among sexually selected traits in the armed bean bugRiptortus pedestris. In this insect, males with a larger body and weapon are more likely to win male–male competitions, and males with a larger weapon or higher courtship rate are more attractive to females. There was a significant positive correlation between body size and weapon size, whereas the courtship rate had significant negative correlations with body size and weapon size. Our results suggested that there was a phenotypic trade‐off between courtship rate and male morphology. In this insect, smaller males may make more effort in courtship behavior as an alternative mating tactic.