Female mate choice as a condition-dependent life-history trait
Female mate choice as a condition-dependent life-history trait
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DOI：
10.1086/430672
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发表时间：
2005-07-01
影响因子：
2.9
通讯作者：
Jennions, MD
中科院分区：
文献类型：
--
作者：
Hunt, J;Brooks, R;Jennions, MD
资源的获取是性状变异和共变模式的重要决定因素，这些性状的生产成本很高，而且取决于其表达的条件。然而，雌性择偶行为的变化在多大程度上取决于条件，以及这与其他生活史特征的关系，在很大程度上仍然未知。我们操纵收购的饮食蛋白质的黑场蟋蟀，Teleogryllus commodus，并测量这对几个重要的生活史特征和女性择偶行为的影响。高蛋白饮食饲养的雌性发育更快，在羽化时更重，比低蛋白饮食饲养的雌性寿命更长。两条证据表明，雌性的择偶行为在T。康莫德是条件依赖性的。首先，女性饲养的高蛋白饮食更性反应，并表示更强的线性和二次偏好功能的呼叫率和主频，分别。第二，在治疗中，发育较快的女性体重较轻，通常性反应较低，并且在高蛋白饮食治疗中，表现出比发育较慢的女性更弱的偏好。总的来说，我们的研究结果表明，在择偶行为产生变化的资源获取的重要作用。
The acquisition of resources is an important determinant of patterns of variation in and covariation among traits that are costly to produce and are dependent on condition for their expression. However, the extent to which variation in female mate choice behavior is condition dependent, and how this is related to other life-history traits, remains largely unknown. We manipulated the acquisition of dietary protein in the black field cricket, Teleogryllus commodus, and measured the effects of this on several important life-history traits and on female mate choice behavior. Females reared on a high-protein diet developed faster, were heavier at eclosion, and lived longer than females reared on a low-protein diet. Two lines of evidence suggest that female mate choice behavior in T. commodus is condition dependent. First, females reared on the high-protein diet were more sexually responsive and expressed stronger linear and quadratic preference functions for call rate and dominant frequency, respectively. Second, within treatments, females that developed faster were lighter, generally less sexually responsive, and, in the high-protein-diet treatment, expressed weaker preferences than slower-developing females. Collectively, our findings suggest an important role for resource acquisition in generating variation in mate choice behavior.