Allee effects in metapopulation dynamics
Allee effects in metapopulation dynamics
复制标题
DOI：
10.1086/286169
复制
发表时间：
1998-08-01
影响因子：
2.9
通讯作者：
Amarasekare, P
中科院分区：
文献类型：
--
作者：
Amarasekare, P
在小种群规模（Svane 1984;罗宾逊et al. 1993）和表现出高度近亲繁殖衰退的物种（Lande et al. 1994）中的成功。即使没有疤痕-1988;拉蒙等人，1993）。在低密度的集合种群城市中，类似Allee效应可能发生，人口统计随机性（1974年5月; Shaffer 1987）可能会预水平化。例如，定殖相当于集合种群的繁殖，而集合种群成功建立。总之，扩散成本和殖民的困难可能会遭受不成比例的减少殖民成功在小p.这可能会导致人均后生适宜的栖息地可能会导致灭绝阈值在低p，创建一个类似Allee效应。这样的集合种群增长率在低于斑块占用的阈值水平时变为负值。当稀有时，即使合适的栖息地丰富，也不会增加。
Notes and Comments 299 success at small population sizes (Svane 1984; Robinson et al. 1993), and for species that exhibit high inbreeding depression (Lande et al. 1994). Even if there is no scar-1988; Lamont et al. 1993). An Allee-like effect can occur at the metapopulation city of reproductive opportunities at low densities, demographic stochasticity (May 1974; Shaffer 1987) may prelevel. For example, colonization is the equivalent of reproduction in a metapopulation, and a metapopulation vent successful establishment. In sum, dispersal costs and difficulties in colonizing may suffer a disproportionate reduction in colonization success at small p. This may cause the per capita metapo-suitable habitat may lead to an extinction threshold at low p, creating an Allee-like effect. Such a metapopulapulation growth rate to become negative below a threshold level of patch occupancy. tion may not increase when rare, even when suitable habitat is abundant.