ECOLOGICAL AND SOCIAL FACTORS AFFECTING HATCHABILITY OF EGGS
ECOLOGICAL AND SOCIAL FACTORS AFFECTING HATCHABILITY OF EGGS
复制标题
影响鸡蛋孵化率的生态和社会因素
DOI：
10.1093/auk/99.3.526
复制
发表时间：
1982
期刊：
影响因子：
--
通讯作者：
W. Koenig
中科院分区：
文献类型：
--
作者：
W. Koenig
孵化率，定义为蛋在孵化结束后存活的比例，在不同的鸟类种群中有所不同。在这里，我在113个物种的155项研究中比较分析了各种变量对孵化率的影响。在考虑的生态和地理变量中，纬度、饮食和巢型解释了孵化能力的显著差异，因为与草食性和开放式筑巢物种相比，食肉和洞巢物种的孵化能力沿纬度梯度显著增加，而孵化能力则显著降低。在与社会性相关的变量中，随着社会性梯度（定义为与同种个体互动频率增加的可能性）的增加，所有变量都会对孵化率产生不利影响，在社会组织和可能的孵化模式中，这一点尤为明显。此外，有一只以上雄性和/或雌性的橡果啄木鸟（Melanerpes formicivorus）群体的巢中蛋的孵化率明显低于每一性别只有一只繁殖个体的群体。尽管这些孵化率趋势的原因尚不清楚，但这些结果提供了比较证据来支持这样一个假设，即追求更社会化策略的个体存在直接的、可检测的繁殖成本。1981年3月9日收到，1982年2月11日接受。为了生存，其中一些可以与社会和生态因素相关联。社会变量与孵化率的相关性促使对合作繁殖的橡实啄木鸟种群中几个亚群的孵化率进行第二次分析。该物种的孵化率也存在显著差异。
Hatchability, defined as the proportion of eggs surviving to the end of in- cubation that hatch, varies among populations of birds. Here, I examine the effects of a variety of variables on hatchability in a comparative analysis of 155 studies of 113 species. Of the ecological and geographical variables considered, latitude, diet, and nest type explain a significant amount of the variance in hatchability due to a significant increase in hatch- ability along a latitudinal gradient and a decrease in hatchability in carnivorous and hole- nesting species compared to herbivorous and open-nesting species. Of the variables related to sociality, all affect hatchability adversely as they increase along a sociality gradient (de- fined as the likelihood of increasing frequency of interactions with conspecifics), signifi- cantly so in the case of social organization and possibly incubation pattern. In addition, hatchability of eggs in nests of Acorn Woodpecker (Melanerpes formicivorus) groups con- taining more than one breeding male and/or female is significantly lower than that observed in groups with a single breeding individual of each sex. Although the causes of these trends in hatchability are unclear, these results provide comparative evidence to support the hy- pothesis that there is a direct, detectable reproductive cost to individuals pursuing strategies that are more social. Received 9 March 1981, accepted 11 February 1982. to exist, some of which can be correlated with both social and ecological factors. The corre- lations of the social variables with hatchability prompted a second analysis comparing hatch- ability among several subsets of a population of the cooperatively breeding Acorn Wood- pecker (Melanerpes formicivorus). Significant variability in hatchability is also shown to be present within this species.