Morph-Specific Weapon-Correlated Traits in a Male Dimorphic Stag Beetle Prosopocoilus inclinatus, (Coleoptera: Lucanidae)
Morph-Specific Weapon-Correlated Traits in a Male Dimorphic Stag Beetle Prosopocoilus inclinatus, (Coleoptera: Lucanidae)
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雄性二态锹虫 Prosopocoilus inclinatus 的形态特异性武器相关特征（鞘翅目：Lucanidae）
DOI：
10.1093/aesa/saw096
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
E.
中科院分区：
文献类型：
--
作者：
Ito;J.;Ohkubo;Y.;Hasegawa;E.
一些雄性甲虫与竞争对手的雄性战斗显示出双形武器。主要的男性有大型武器，并积极与竞争对手的男性战斗。未成年男性拥有小型武器或没有武器，通常采取不战而屈人之兵的替代生殖策略。合适的身体形状可能会根据战术而有所不同。因此，与不同的武器相适应的身体部位可能在主要和次要男性中根据他们的战斗战术而有所不同。许多研究报道了武器和一些形态特征之间的相关性，但很少有研究表明主要和次要男性之间的相关模式的差异。在这里，我们表明，在一个男性的二型雄鹿甲虫，Prosopocoilus inclinatus（Motschlsky），几个形态特异性特征与武器的大小。下颌骨的大小与眼睛的大小呈正相关的主要男性，但正相关的前腿的长度和腹部重量呈负相关的未成年男性。这些结果表明，相关性状集是不同的变种之间，因为每个变种采取不同的战斗战术和交配策略。
Several male beetles that fight with rival males show dimorphic weapons. Major males have large weapons and fight aggressively with rival males. Minor males have small or no weapons and often adopt an alternative reproductive tactic without fighting. Suitable body shapes are likely to differ depending on the tactic. Thus, the set of body parts that are compatible with distinct weapons may be different in major and minor males according to their battle tactics. Many studies have reported correlations between weapons and some morphological traits, but few studies have shown the difference in the correlation patterns between major and minor males. Here, we show that in a male dimorphic stag beetle,Prosopocoilus inclinatus(Motschlsky), several morph-specific traits are correlated with weapon size. Mandible size correlates positively with eye size in major males only but correlates positively with the length of forelegs and negatively with abdomen weight in minor males only. These results suggest that the correlated trait sets are different between the morphs because each morph adopts different battle tactics and mating strategies.