Geographic Variation in Artificial Island Colonization Curves
Geographic Variation in Artificial Island Colonization Curves
复制标题
人工岛殖民曲线的地理变化
DOI：
10.2307/1936380
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发表时间：
1978
期刊：
影响因子：
--
通讯作者：
J. Depalma
中科院分区：
文献类型：
--
作者：
A. Schoener;E. Long;J. Depalma
在几个浅水北方半球的地方在热带，亚热带，温带和亚北极地区的相同的海洋污损板“岛屿”的殖民地进行了比较。由于这些网站不同的物种总数可用于殖民化，在这些岛屿上的物种的平衡数量预测的MacArthur-Wilson模型的扩展预计也会有所不同。最初，附着在面板上的海洋无脊椎动物和藻类的固着物种的数量与潜在殖民物种的可用性成反比;在大多数情况下，这意味着与纬度成反比。到研究结束时，平衡物种数显示网站之间的差异最小，似乎收敛于类似的值在所有地方。因此，殖民化曲线在物种丰富的地区，如热带地区比在贫困地区更高。
Colonization of identical marine-fouling-panel "islands" is compared at several shal- low-water Northern Hemisphere localities in tropical, subtropical, temperate and subarctic regions. Because these sites differ in total number of species available for colonization, the equilibrium number of species on these islands predicted by an extension of the MacArthur-Wilson model is expected to differ as well. Initially the number of sessile species of marine invertebrates and algae accumu- lating on panels is inversely related to the availability of potentially colonizing species; in most cases this implies an inverse relation to latitude. By the end of the study equilibrium species number shows minimal differences between sites, appearing to converge on similar values at all localities. Thus, colonization curves are more peaked in species-rich regions such as the tropics than in poorer ones.