Sexually selected traits and life history traits of larger and smaller males of the horned flour beetle Gnatocerus cornutus
Sexually selected traits and life history traits of larger and smaller males of the horned flour beetle Gnatocerus cornutus
复制标题
角粉甲虫 Gnatocerus cornutus 较大和较小雄性的性选择特征和生活史特征
DOI：
10.1111/een.13016
复制
发表时间：
2021
影响因子：
2.2
通讯作者：
Okada Kensuke
中科院分区：
文献类型：
--
作者：
Kiyose Katsuya;Okada Yasukazu;Katsuki Masako;Suzaki Yu;Okada Kensuke
性武器的表达强烈地受到环境因素的影响，在较大和较小的男性之间的一个显着的形态差异，在武装昆虫。2.较大和较小的男性之间武器的形态差异可以促进非性特征的差异。这是因为武器的大小通常与非性特征的发展有关，如躯体特征和生活史特征。由此产生的多个性状的不同子集可能有助于较大和较小的男性，分别繁殖成功。3.有相对较少的研究夫妇之间的生活史和生殖特征的差异较大和较小的男性。在这里，我们调查的形态，行为和生活史的Gnatocerus角的差异。4.较大的雄性有相对较大的下颌骨，在雄性争夺雌性时具有优势。此外，发育期显着较短的较大的男性比在较小的男性。5.拥有基本武器的体型较小的雄性有更高的运动能力。这表明在向新的领域扩散时表现更好。体型较大和体型较小的雄性个体表现出不同的多性状组合，多性状组合可能与武器表达有关。
Expression of sexual weapons is strongly affected by environmental factors in armed insects, resulting in a remarkable morphological difference between larger and smaller males. 2. Morphological differences in weapon between larger and smaller males can promote differences in non‐sexual traits. This is because weapon sizes are often associated with developments of non‐sexual traits such as somatic traits and life history traits. The resulting different subsets of multiple traits may contribute to the reproductive success of larger and smaller males, respectively. 3. There were relatively few studies that couple differences in life history and reproductive traits between larger and smaller males. Here we investigated differences in morphology, behaviours, and life history in Gnatocerus cornutus. 4. Larger males have relatively larger mandibles and the advantage in male fighting to access females. Also, the developmental period was significantly shorter in the larger males than in the smaller males. 5. Smaller males with rudimentary weapons have higher locomotion. This suggests higher performance in the dispersal to new territories. Larger and smaller males showed different suites of multiple traits, and the combinations of multiple traits are probably related to expression of weapons.