Children of divorce: effects of adult replacements on previous offspring in Argentinean owl monkeys
Children of divorce: effects of adult replacements on previous offspring in Argentinean owl monkeys
复制标题
离婚子女：成年猫头鹰猴的替代对前代后代的影响
DOI：
10.1007/s00265-011-1297-9
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发表时间：
--
影响因子：
2.3
通讯作者：
Fernandez-Duque E.
中科院分区：
文献类型：
--
作者：
Huck M. ;Fernandez-Duque E.
根据家庭进化理论，一对成员被入侵者取代可能会对现有的后代产生深远的影响。继父母被认为对不相关的未成年人比对遗传后代提供更少的照顾，除非照顾也是一种交配策略。此外，由于入侵者将成为异性后代的潜在配偶，后代和同性父母之间的关系预计会恶化。为了验证这些预测，我们研究了阿扎拉的猫头鹰猴（Aotus azarai）人口在阿根廷表现出系列一夫一妻制和双亲照顾。自1997年以来，我们收集了人口统计数据，从CA。25组和个体间距离数据来自ca。150个被标记的人首先，我们比较了生存和扩散年龄的未成熟的组和不更换调查是否父母照顾作为一种交配策略。其次，我们比较了性别特异性年龄在分散组与异性父母，同性父母，或在稳定的组，以测试是否后代和同性父母之间的关系恶化后，更换另一个父母。生存和扩散年龄与替代品没有负相关，这表明男性护理可能，至少部分，作为一种交配策略。如果入侵者是雄性，则雌性后代的替换和随后的扩散之间的时间滞后更大，而后代和同性父母在替换后比之前更不经常是最近的邻居。我们的研究结果表明，通过更换父母的家庭破裂是不相关的后代生存率下降或早期分散的青少年，但恶化亲子关系。
According to the Evolutionary Theory of the Family, the replacement of one pair-member by an intruder may have profound consequences for the existing offspring. Step-parents are expected to provide less care towards unrelated immatures than to genetic offspring, unless caring also serves as a mating strategy. Furthermore, because an intruder will be a potential mate for opposite-sexed offspring, relationships between offspring and same-sex parents are predicted to deteriorate. To test these predictions, we studied an Azara’s owl monkey (Aotus azarai) population in Argentina exhibiting serial monogamy and bi-parental care. Since 1997, we have collected demographic data from ca. 25 groups and inter-individual distance data from ca. 150 marked individuals. First, we compared survival and dispersal age of immatures in groups with and without replacements to investigate whether parental care serves as a mating strategy. Second, we compared sex-specific age at dispersal for groups with replacement of opposite-sex parents, same-sex parents, or in stable groups in order to test whether relationships between offspring and same-sex parents deteriorated after the replacement of the other parent. Survival and dispersal ages were not negatively associated with replacements, suggesting that male care might serve, at least partly, as a mating strategy. The time lag between a replacement and the subsequent dispersal of female offspring was greater if the intruder was a male, while the offspring and same-sex parents were less often nearest neighbors after replacements than before. Our results suggest that family disruption through the replacement of a parent is not associated with decreased offspring survival or early dispersion of juveniles, but deteriorates parent–offspring relationships.
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影响因子：
2.3
作者：
Silk, Joan B.;Altmann, Jeanne;Alberts, Susan C.
通讯作者：
Alberts, Susan C.
死亡率和鸟类离婚率的其他决定因素
影响因子：
2.3
作者：
J. Jeschke;H. Kokko
通讯作者：
H. Kokko
捕获和标记 Azarai 夜猴的野外方法
影响因子：
2.5
作者：
E. Fernández‐Duque;Marcelo Rotundo
通讯作者：
Marcelo Rotundo
南美洲基本灵长类动物的携带行为研究
DOI：
--
发表时间：
1987
期刊：
影响因子：
--
作者：
C. Welker;C. Schäfer
通讯作者：
C. Schäfer
影响因子：
2.4
作者：
Eikenaar, C.;Richardson, D. S.;Komdeur, J.
通讯作者：
Komdeur, J.