Breeding habitat selection in cliff swallows: the effect of conspecific reproductive success on colony choice
Breeding habitat selection in cliff swallows: the effect of conspecific reproductive success on colony choice
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DOI：
10.1046/j.1365-2656.2000.00382.x
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发表时间：
2000-01-01
影响因子：
4.8
通讯作者：
Danchin, E
中科院分区：
文献类型：
--
作者：
Brown, CR;Brown, MB;Danchin, E
1.动物选择繁殖地的一种方式是在一个季节评估同种动物的繁殖成功，并在第二年在集体成功的栖息地安顿下来。这种栖息地评估可能会促进高质量立地的群体形成。我们研究了内布拉斯加州西南部的悬崖燕子Petrochelidon pyrhonota是否利用同种繁殖性能来选择群体地点。种群在不同季节和不同季节的繁殖成功率在空间上是不同的，并且在一个地点从一年到下一年是自相关的，但不是在更长的时间间隔上。因此，悬崖燕子满足了潜在利用同种繁殖性能信息的条件。在连续几年重复利用的站点中，在一个季节集体成活率最高的站点在第二个季节显示出最大的群体增长率，包括最大的迁入者涌入。连续几年群体场所重复利用的概率随着前一季的集体繁殖成功和平均繁殖者体重(衡量个体状况的指标)的增加而增加。悬崖燕子可能在选择种群时使用同种繁殖性能。这种机制是栖息地选择的一个组成部分，它还包括对同类物种的吸引和对个体自身成功的评估。
1. One way that animals may select breeding sites is by assessing the reproductive success of conspecifics in one season and settling the next year in those habitat patches where success collectively had been greatest. This sort of habitat assessment may promote the formation of colonies at high quality sites.2. We examined whether cliff swallows, Petrochelidon pyrrhonota, in south-western Nebraska used conspecific breeding performance to choose colony sites.3. Reproductive success at colony sites varied spatially within seasons and between seasons, and was autocorrelated at a site from one year to the next, but not over longer time intervals. Cliff swallows thus met the conditions for potential use of information on conspecific breeding performance.4. Among sites re-used in consecutive years, those with highest collective success in one season showed the greatest rates in colony growth the next season, including the greatest influx of immigrants.5. The probability of colony-site re-use in successive years increased with collective reproductive success and average breeder body mass (a measure of individual condition) the previous season.6. Cliff swallows probably use conspecific breeding performance in selecting colonies. This mechanism is one component of habitat selection that also includes attraction to conspecifics and assessment of an individual's own success.