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Morph-Specific Weapon-Correlated Traits in a Male Dimorphic Stag Beetle Prosopocoilus inclinatus, (Coleoptera: Lucanidae)

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Title: Morph-Specific Weapon-Correlated Traits in a Male Dimorphic Stag Beetle Prosopocoilus inclinatus, (Coleoptera: Lucanidae)
Authors: Ito, J. Browse this author
Ohkubo, Y. Browse this author
Hasegawa, E. Browse this author →KAKEN DB
Keywords: Weapon dimorphism
morph-specific correlated evolution
stag beetle
Issue Date: 3-Feb-2017
Publisher: Oxford University Press
Journal Title: Annals of the Entomological Society of America
Volume: 110
Issue: 3
Start Page: 281
End Page: 285
Publisher DOI: 10.1093/aesa/saw096
Abstract: 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.
Rights: This is a pre-copyedited, author-produced version of an article accepted for publication in Annals of the Entomological Society of America following peer review. The version of record 110(3), pp281-285, May 2017 is available online at: .
Type: article (author version)
Appears in Collections:農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 長谷川 英祐

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