Experimental evidence for female-driven monandry in the wolf spider, Pardosa astrigera
Experimental evidence for female-driven monandry in the wolf spider, Pardosa astrigera
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狼蛛 (Pardosa astrigera) 中雌性驱动的monandry的实验证据
DOI：
10.1007/s00265-011-1220-4
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发表时间：
2011-06
影响因子：
2.3
通讯作者：
Li, Daiqin
中科院分区：
文献类型：
--
作者：
Wu, Jun;Chen, Jian;Liu, Fengxiang;Li, Daiqin
许多物种的雌性会交配繁殖，但有些类群雌性只与一只雄性交配，也称为monandry。尽管相对于女性一妻多夫制，女性一妻多夫制背后的根本机制知之甚少，但对于维持一妻多夫制，存在两种截然不同的假设：男性控制和女性控制。由于雌性通常会从多次交配中获益，从而获得物质和/或遗传利益，因此，一夫一妻制的情况可能反映了雄性对雌性再交配的操纵，而牺牲了雌性的健康（雄性控制）。或者，如果雌性通过交配一次（雌性控制）来最大化其适应性，则雌性可能会青睐雌性。在这里，我们通过操纵交配次数（重复交配和一妻多夫）对雌性狼蛛（Pardosa astrigera）的雌性健康状况进行了测试，从而测试了两个假设。我们允许雌性与同一雄性（重复交配）或两个雄性（一妻多夫）受精一次、两次，并确定雌性的健康后果。雌性交配次数，无论是单次交配、重复交配还是一妻多夫，对雌性的繁殖力、生育力、幼蛛的存活率和体型没有显着影响。然而，在实验室条件下，雌性多次交配的适应成本可能在某种程度上被低估。此外，诱导多次交配对雌性存活率产生不利影响。因此，我们的结果表明，狼蛛（P. astrigera）的族群可能处于雌性的控制之下，而不是处于雄性的控制之下。
Females of many species mate multiply, yet some taxon females mate with only one male, also known as monandry. Although the underlying mechanism behind female monandry is poorly understood relative to female polyandry, there are two contrasting hypotheses, male control and female control, for the maintenance of monandry. Since females generally benefit from multiple mating for material and/or genetic benefits, cases of monandry may reflect male manipulation on female remating at the expense of female fitness (male control). Alternatively, monandry may be favored by females, if females maximize their fitness by mating once (female control). Here, we tested two hypotheses by manipulating the number of mating (repeated mating and polyandry) on female fitness in a largely monandrous wolf spider, Pardosa astrigera. We allowed females to be inseminated once, twice with the same males (repeated mating) or with two males (polyandry) and determined female fitness consequences. The number of female mating, regardless of a single mating, repeated mating, or polyandry, had no significant effects on female fecundity, fertility, and survival and size of their spiderlings. However, the fitness cost of female multiple mating may to some extent be underestimated under laboratory conditions. In addition, female survival was adversely affected by induced multiple mating. Therefore, our results suggest that monandry of the wolf spider (P. astrigera) may be under the control of females, rather than under the control of males.
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影响因子：
--
作者：
C. Fox;Claudia M. Rauter
通讯作者：
C. Fox;Claudia M. Rauter
DOI：
10.1636/s02-72
发表时间：
2005-04
期刊：
--
影响因子：
--
作者：
S. Norton;G. Uetz
通讯作者：
S. Norton;G. Uetz
影响因子：
16.8
作者：
Yasui, Y
通讯作者：
Yasui, Y
影响因子：
16.8
作者：
T. Chapman;G. Arnqvist;J. Bangham;L. Rowe
通讯作者：
T. Chapman;G. Arnqvist;J. Bangham;L. Rowe
影响因子：
2.1
作者：
V. T. Montrose;W. E. Harris;Patricia J. Moore
通讯作者：
V. T. Montrose;W. E. Harris;Patricia J. Moore