Do female rainbow kribs choose males on the basis of their apparent aggression and boldness? A non-correlational mate choice study
Do female rainbow kribs choose males on the basis of their apparent aggression and boldness? A non-correlational mate choice study
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雌性彩虹克里布鸟会根据雄性的明显攻击性和大胆来选择雄性吗？
DOI：
10.1007/s00265-019-2794-5
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发表时间：
2020
影响因子：
2.3
通讯作者：
Wiebke
中科院分区：
文献类型：
--
作者：
Scherer;Ulrike;Jean-Guy J;Schuett;Wiebke
摘要个体间一致的行为差异，称为个性差异，是可遗传的，对个体的生存和繁殖成功具有影响。因此，个性差异很可能不仅存在于自然界，也存在于性选择之下。事实上，最近发展起来的个人根据个性来选择伴侣的想法得到了经验上的支持。然而，大多数基于人格特质的择偶研究都是相关的开创性工作，很少有实验研究通过将人格测量与其他可能在择偶过程中重要的潜在相关特质分开来检验因果关系。在这里，我们测试了雌性对雄性攻击性(通过在固定距离定位雄性来接近动画对手的平均距离)或雄性大胆(通过模拟捕食威胁下的活动，通过环境水温的梯度来操纵)的明显水平和一致性的偏好。雌性能够观察到配对的刺激性雄性的明显行为，并允许在随后的选择测试中在两个刺激性雄性之间进行选择。我们发现，男性的表观攻击性/冒险性对女性的选择没有直接影响，但有一种间接影响，即女性对明显大胆的男性的偏好随着其表观大胆程度的男性内配对对比度的增加而增加。我们的结果表明，雌性在选择配偶时本身就考虑了雄性大胆，这表明在我们的研究物种中，雄性大胆是性别选择。意义陈述自从达尔文提出性选择的概念以来，雌性选择一直被广泛研究。然而，个体间一致的行为差异(称为个性差异)会影响配偶选择的假设是相对较新的。相关研究支持这一观点，但仅提供了提示性证据。在这里，我们使用行为操控来将雄性行为从其他潜在相关的雄性特征中分离出来，使我们能够测试雌性选择与雄性攻击性和大胆(在行为的水平和一致性方面)的个性差异之间的因果关系。我们没有发现总体上女性对男性明显行为的偏好，但女性对大胆外表的男性的偏好随着男性之间明显大胆的反差的增加而增加。我们的结果表明，女性的选择和男性的大胆之间存在因果联系。未来，使用温度梯度的行为操纵可能会提供进一步的有价值的见解。
AbstractConsistent between-individual differences in behaviour, known as personality differences, are heritable and have consequences for individual survival and reproductive success. Therefore, it is likely that personality differences are not just under natural but also under sexual selection. Indeed, the recently developed idea that individuals choose their mate based on its personality finds empirical support. However, most studies on mate choice based on personality traits are correlative pioneering work and there is a paucity of experimental studies that test for causality by disentangling personality measures from other, potentially correlated traits that may be important during mate choice. Here, we tested female preference for the apparent level and consistency of either male aggression (measured as mean distance of approach towards an animated opponent, manipulated by locating males at a fixed distance) or male boldness (measured as activity under a simulated predation threat, manipulated using a gradient in ambient water temperature) in a bi-parental West African cichlid,Pelvicachromis pulcher. Females could observe the apparent behaviour of paired stimulus males and were allowed to choose between the two stimulus males in a subsequent choice test. We found no direct effect of male apparent aggression/boldness on female choice, but an indirect effect such that female preference for the apparently bold male increased with increasing within-male pair contrast in their apparent level of boldness. Our results indicate females consider male boldness per se during mate choice, suggesting male boldness is sexually selected in our study species.Significance statementEver since Darwin introduced the concept of sexual selection, female choice has been studied extensively. However, the hypothesis that consistent between-individual differences in behaviour (known as personality differences) affect mate choice is relatively new. Correlative studies support this idea but provide only suggestive evidence. Here, we used behavioural manipulations in order to disentangle male behaviour from other, potentially correlated male traits, allowing us to test for causality between female choice and personality differences in male aggression and boldness (both in level and consistency of behaviour) in a bi-parental cichlid. We found no overall female preference for male apparent behaviour, but female preference for the bold-appearing male increased with increasing between-male contrast in apparent boldness. Our results indicate a causal link between female choice and male boldness. In future, behavioural manipulations using a temperature gradient could provide further valuable insights.
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影响因子：
2.5
作者：
K. R. Mckaye;B. Murry
通讯作者：
B. Murry
影响因子：
1.8
作者：
A. Chira
通讯作者：
A. Chira
竞争性遭遇中的偏侧化：镜子测试是否反映了攻击性行为？
影响因子：
2
作者：
Scherer;W Schuett
通讯作者：
W Schuett
与异种雌性交配对雄性帆鳍锦鲤有利。
DOI：
10.1126/science.8278809
发表时间：
1994
期刊：
Science (New York, N.Y.)
影响因子：
--
作者：
Schlupp,I;Marler,C;Ryan,MJ
通讯作者：
Ryan,MJ
影响因子：
22.4
作者：
S. Gosling
通讯作者：
S. Gosling