Body size, symmetry and courtship behavior of Dysdercus maurus distant (Hemiptera: Pyrrhocoridae)
Body size, symmetry and courtship behavior of Dysdercus maurus distant (Hemiptera: Pyrrhocoridae)
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DOI：
10.1590/s1519-566x2011000300003
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发表时间：
2011-06-01
影响因子：
1.8
通讯作者：
Lomônaco, C
中科院分区：
文献类型：
--
作者：
Jorge, AS;Lomônaco, C
本研究分析了体尺和对称性在黑腹脂鲤性选择和求偶行为中的作用。胁迫交配、雌性抵抗和交配前的争斗表明了性冲突。在所有交配尝试中都观察到雄性与雌性的斗争。雌性试图通过推或跑甚至通过剧烈摇晃身体来拒绝雄性，试图将雄性从它们的背上赶走。尽管在求偶过程中会发生性冲突，但雌性仍会根据形态和行为特征积极地选择配偶。更大的男性更对称的胫和更长的跗骨，更好的连接imposers在性竞争中更成功。证据表明，性冲突和女性择偶不应该相互排斥。
This study analyses the role of body size and symmetry in the sexual selection and courtship behavior of Dysdercus maurus Distant. Sexual conflicts signaled by coercive mating, female resistance, and precopulation fights illustrate the mating system. Male-female struggles were observed in all mating attempts. Females tried to reject males by pushing or running and even by vigorously shaking their bodies, in attempts to dislodge the male from their dorsum. In spite of sexual conflicts during courtship, females actively chose their mates based on morphological and behavioral traits. Larger males with more symmetrical tibiae and longer tarsi that are better copula imposers were more successful in sexual competition. Evidence is presented that sexual conflict and female mate choice should not be mutually excluded.