Assessment during aggressive contests between male jumping spiders.
Assessment during aggressive contests between male jumping spiders.
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DOI：
10.1016/j.anbehav.2008.01.032
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发表时间：
2008-09
期刊：
影响因子：
2.5
通讯作者：
Mason, Andrew C.
中科院分区：
文献类型：
--
作者：
Elias, Damian O.;Kasumovic, Michael M.;Punzalan, David;Andrade, Maydianne C. B.;Mason, Andrew C.
关键词：
评价策略是竞赛博弈模型的重要组成部分。策略可以基于自己的能力（自我评估）或基于两个对手的相对能力（相互评估）。我们使用允许区分评估类型的统计方法，研究了跳蛛Phiddipus clarus的比赛。在这个物种中，侵略性的相互作用可以分为“接触前”和“接触”阶段。预接触阶段包括视觉和振动信号的发作。接触阶段之后，男性身体接触（腿击剑）。体重和振动信号的差异预测赢家与更重，更积极的信号男性赢得更多的比赛。振动行为预测预接触阶段的持续时间，更高的信号率和参赛者之间的差异更大，导致更长的预接触互动时间。接触阶段的持续时间预测最强烈的重量损失男性相对于获胜的男性，这表明P. clarus男性使用自我评估在确定比赛持续时间。虽然自我评估策略得到了支持，但我们的数据表明相互评估（“部分相互评估”）的次要作用。在最初的比赛之后，男性竞争者改变了他们的行为。预接触和接触阶段的持续时间减少，而振动信号的行为在赢家是不变的。此外，只有振动信号的差异预测赢家在随后的较量表明经验的作用，在确定比赛的结果。我们认为，男性使用的规则和评估策略可以根据经验而改变，评估策略可能是自我和相互评估之间的连续体。
Assessment strategies are an important component in game theoretical models of contests. Strategies can be either based on one’s own abilities (self assessment) or on the relative abilities of two opponents (mutual assessment). Using statistical methodology that allows discrimination between assessment types, we examined contests in the jumping spider Phiddipus clarus. In this species, aggressive interactions can be divided into ‘pre-contact’ and ‘contact’ phases. Pre-contact phases consist of bouts of visual and vibratory signaling. Contact phases follow where males physically contact each other (leg fencing). Both weight and vibratory signaling differences predicted winners with heavier and more actively signaling males winning more contests. Vibratory behaviour predicted pre-contact phase duration, with higher signaling rates and larger differences between contestants leading to longer pre-contact interaction times. Contact phase duration was predicted most strongly by the weight of losing males relative to that of winning males, suggesting that P. clarus males use self-assessment in determining contest duration. While a self-assessment strategy was supported, our data suggest a secondary role for mutual assessment (“partial mutual assessment”). After initial contest bouts, male competitors changed their behaviour. Pre-contact and contact phase durations were reduced while vibratory signaling behaviour in winners was unchanged. In addition, only vibratory signaling differences predicted winners in subsequent bouts suggesting a role of experience in determining contest outcomes. We suggest that the rules and assessment strategies males use can change depending on experience and that assessment strategies are likely a continuum between self- and mutual assessment.
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影响因子：
2.5
作者：
Elias, DO;Hebets, EA;Mason, AC
通讯作者：
Mason, AC
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作者：
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通讯作者：
Hoefler, Chad D.
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通讯作者：
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作者：
ENQUIST, M;LEIMAR, O
通讯作者：
LEIMAR, O