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Biparental negotiation or larval begging? Determinant of male provisioning in a burying beetle (Nicrophorus quadripunctatus)

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Title: Biparental negotiation or larval begging? Determinant of male provisioning in a burying beetle (Nicrophorus quadripunctatus)
Authors: Suzuki, Seizi Browse this author →KAKEN DB
Keywords: parental investment
game theory
mate removal
Issue Date: Sep-2020
Publisher: Brill
Journal Title: Behaviour
Volume: 157
Issue: 8-9
Start Page: 719
End Page: 729
Publisher DOI: 10.1163/1568539X-bja10020
Abstract: In species showing biparental care, parents often adjust their level of care facultatively. Partners can potentially monitor each other directly (modify their effort sequentially in direct response to the prior effort of their mate) or indirectly (parents modify their effort through the begging rates of their offspring). This study examined whether partner negotiation or begging by larvae best explains male provisioning in Nicrophoms quadripunctatus. The frequency of males approaching larvae to feed did not increase with either female removal or female handicapping. However, larval begging toward males increased with female removal, but not with female handicapping. This suggests that larvae are not affected by the change of female investment in care but larvae reacted to the absence of a female parent. Although larvae begged more towards the male when the female was removed, my findings show that males did not respond by increasing their care, which suggests that males are insensitive to variation in their partner's state or offspring behaviour in N. quadripunctatus.
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: 鈴木 誠治

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