Traditionally, sexual selection has been seen as a process in which choosy females select non‐choosy males. Recent studies, however, have challenged this view by showing that males can also be choosy in many species. We assessed the sexual preferences in males of the tropical jumping spider Hasarius adansoni (Audouin, 1826). We measured mating effort in males and determined how female quality influences offspring quality, quantity, and survival. We also estimated total sperm load and how much sperm was invested in a mating with a particular female. We found no evidence of male mating effort in terms of mating frequency nor sperm investment. Similarly, there was no relationship between female quality (i.e., size and condition) and offspring quality (i.e., survival and feeding performance) or quantity. We found strong evidence that the sperm invested in a particular female is a function of the amount of sperm the male had available for usage at that particular mating. The fact that males probably find females sequentially, along with the lack of relationship between female quality and offspring quality/quantity, likely explains the lack of differences in mating effort by males.

中文翻译：

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雄性在热带跳跃蜘蛛Hasarius adansoni中不加选择地交配（Audouin，1826年）

传统上，性选择被视为挑剔的女性选择不挑剔的男性的过程。然而，最近的研究通过证明雄性在许多物种中也可以选择来挑战这一观点。我们评估了热带跳跃蜘蛛Hasarius adansoni对男性的性偏爱（奥杜安，1826年）。我们测量了雄性的交配努力，并确定雌性质量如何影响后代的质量，数量和生存。我们还估算了总精子负荷以及与特定雌性交配时投入的精子量。在交配频率和精子投资方面，我们没有发现雄性交配努力的证据。同样，雌性质量（即体型和状况）与后代质量（即生存和喂养性能）或数量之间没有关系。我们发现有力的证据表明，投资于特定雌性的精子是该特定交配中雄性可使用的精子量的函数。男性很可能会顺序找到女性，而女性素质与后代质量/数量之间也缺乏联系，