Obligate monogamy without paternal care in Kirk’s dikdik
Obligate monogamy without paternal care in Kirk’s dikdik
复制标题
柯克迪克迪克 (Kirk’s dikdik) 中实行一夫一妻制，无需父亲照顾
作者：
P. E. Komers
摘要在一夫一妻制的哺乳动物中，如果雄性能够独占一个以上的雌性，它们就被期望与更多的雌性交配。由于他们缺乏父亲的照顾，柯克的迪克迪克，Madoqua kirki，被认为是极端的兼性一夫一妻制的例子。高密度的无人看守的女性被暴露在奇怪的女性气味的自由放养的男性模拟，男性和女性被暂时删除，以创造空缺。尽管研究发现，男性能够捍卫资源，一个以上的女性，配对男性没有离开自己的领土，寻找一个可能可用的女性，也没有入侵的领土，一个未配对的女性邻居。只有未配对的男性离开他们的领土，并声称邻近的寡妇与他们的领土。这表明男性dikdik不试图获得一个以上的女性，因此似乎是强制性的一夫一妻制。有人建议，临时性和强制性一夫一妻制的术语应该专门描述的灵活性的交配系统，没有父母的角色的影响。Dikdik然后是义务和单亲一夫一妻制。
Abstract In facultatively monogamous mammals males are expected to mate with additional females if they are able to monopolize more than one. Because of their lack of paternal care, Kirk’s dikdik,Madoqua kirki, are believed to be an example of extreme facultative monogamy. High densities of unguarded females were simulated by exposing free-ranging males to strange female scent, and males and females were temporarily removed to create vacancies. Despite the finding that males are capable of defending resources for more than one female, paired males did not leave their territory to search for a presumably available female, nor did they invade a territory of an unpaired female neighbour. Only unpaired males left their territories and claimed neighbouring widows with their territories. This suggests that male dikdik do not attempt to acquire more than one female, and therefore appear to be obligately monogamous. It is proposed that the terms facultative and obligate monogamy should exclusively describe the flexibility of the mating system, without implications of parental roles. Dikdik then are obligate and uniparental monogamists.