Free female mate choice in house mice affects reproductive success and offspring viability and performance
Free female mate choice in house mice affects reproductive success and offspring viability and performance
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DOI：
10.1006/anbe.1999.1316
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发表时间：
2000-02-01
期刊：
影响因子：
2.5
通讯作者：
Holmes, CM
中科院分区：
文献类型：
--
作者：
Drickamer, LC;Gowaty, PA;Holmes, CM
我们用家鼠Mus Musculus检验了性别辩证法理论的一个批判性假设(Gowaty 1997，女权主义和进化生物学，Chapman&Hall)。我们问，雌性家鼠与它们喜欢的雄性交配时，与它们不喜欢的雄性交配时，是否会为它们的后代积累生存能力的好处。我们的实验旨在消除或控制除了雌性配偶选择之外的其他生殖竞争机制。在允许雌性在行为上区分两个雄性之后，区分雌性与偏好(P)或非偏好(NP)雄性配对。然后，我们测试了雌性与它们喜欢的雄性交配的后代是否比与非首选雄性交配的雌性具有更高的存活率。在配对比较中，我们测试了后代在优势竞争中的表现和筑巢技能的差异。在断奶时，我们将一半的幼崽暴露在寒冷的压力下。我们在实验室或室外围栏中测试了后代的表现和生存能力。IN：与P雌性相比，NP雌性产仔数显著减少。与NP配对的儿子相比，P配对的儿子在社会上占主导地位。来自P交配的成年后代；比来自NP交配的筑巢更好。在田间围栏中，NP的后代在引入后存活到60天的数量明显少于P。与NP交配的后代相比，P交配的雄性和雌性后代建立了更大的家庭范围，建造了更好的巢。这是第一次随机向雌性展示允许表达雄性之间的配偶偏好的后代生存能力差异。(C)2000年动物行为研究协会。
We tested a critical assumption of sexual dialectics theory (Gowaty 1997, Feminism and Evolutionary Biology, Chapman & Hall) using house mice, Mus musculus. We asked if female house mice accrue viability benefits for their offspring when they mate with males they prefer versus with males they do not prefer. Our experiment was designed to eliminate or control other mechanisms of reproductive competition besides female mate choice. After allowing females to discriminate behaviourally between two males, which were at random with respect to phenotypic variation discriminating females were paired with preferred (P) or nonpreferred (NP) males. We then tested whether females mating with males they preferred had offspring of higher viability than females mating with nonpreferred males. In pairwise comparisons, we tested for differences in offspring performance in dominance contests and in nest-building skill. At weaning, we exposed half of the pups to cold stress. We tested progeny performance and viability in the laboratory or in outdoor field enclosures. In:comparison to P females, NP females produced significantly fewer litters. Sons from P matings were socially dominant to sons from NP matings. Adult offspring from P matings;built better nests than those from NP matings. In field enclosures significantly fewer NP than P offspring survived to 60 days after introduction. Male and female progeny from P matings established larger home ranges and constructed better nests than progeny from NP matings. This is the first demonstration of progeny viability differences for females allowed to express mate preferences between males presented to them at random. (C) 2000 The Association for the Study of Animal Behaviour.