Choosiness, a neglected aspect of preference functions: a review of methods, challenges and statistical approaches

Choosiness, a neglected aspect of preference functions: a review of methods, challenges and statistical approaches
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选择性,偏好函数被忽视的一个方面:方法、挑战和统计方法的回顾

DOI:
10.1007/s00359-014-0963-6
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发表时间:
2015
期刊:
Journal of Comparative Physiology A
影响因子:
--
通讯作者:
Schielzeth
Schielzeth
中科院分区:
--
文献类型:
--
作者:
Reinhold;Schielzeth

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动物面临着许多选择,其中一个非常重要的选择是交配伙伴的选择。交配偏好的个体间差异已经研究了一段时间,但大多数研究都集中在峰值偏好的位置,而不是偏好函数的其他方面。在这篇综述中,我们讨论了选择性变异在性间选择中的作用。我们将个体水平的择偶定义为对不同刺激信号的反应中交配倾向的变化。我们说明了一般性的问题,在估计方面的偏好函数和讨论的实验设置,以量化的选择性变化,重点选择基于声音信号在昆虫。一个重要的考虑因素是,偏好是按顺序测量的,一次一个刺激,还是在竞争性的多项选择设置;这些替代方案的适用性取决于研究物种的生态。此外,我们讨论了有用的行为代理确定偏好函数,这可能是误导,如果代理不线性相关的交配倾向。最后,我们解决统计方法,包括使用功能值的特质分析,研究挑剔。大多数结论可以概括为昆虫的声音信号和非性环境中的选择。
Animals are faced with many choices and a very important one is the choice of a mating partner. Inter-individual differences in mating preferences have been studied for some time, but most studies focus on the location of the peak preference rather than on other aspects of preference functions. In this review, we discuss the role of variation in choosiness in inter-sexual selection. We define individual-level choosiness as the change in mating propensity in response to different stimulus signals. We illustrate general issues in estimating aspects of preference functions and discuss experimental setups for quantifying variation in choosiness with a focus on choices based on acoustic signals in insects. One important consideration is whether preferences are measured sequentially one stimulus at a time or in competitive multiple-choice setups; the suitability of these alternatives depends on the ecology of the study species. Furthermore, we discuss the usefulness of behavioural proxies for determining preference functions, which can be misleading if the proxies are not linearly related to mating propensity. Finally, we address statistical approaches, including the use of function-valued trait analysis, for studying choosiness. Most of the conclusions can be generalized beyond acoustic signals in insects and to choices in non-sexual contexts.
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