FISH SPECIES DIVERSITY ON MODEL AND NATURAL REEF PATCHES: EXPERIMENTAL INSULAR BIOGEOGRAPHY'
FISH SPECIES DIVERSITY ON MODEL AND NATURAL REEF PATCHES: EXPERIMENTAL INSULAR BIOGEOGRAPHY'
复制标题
模型和天然珊瑚礁斑块上的鱼类物种多样性:实验性岛屿生物地理学
DOI:
10.2307/2937232
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发表时间:
1978
影响因子:
6.1
通讯作者:
J. Molles
中科院分区:
文献类型:
--
作者:
J. Molles
Fish communities associated with model and natural reef patches were studied to determine the effects of heterogeneity, area, and isolation on the number of fish species in these systems. The effects of season and succession on the structure of these communities were also examined. Species turnover was estimated to determine if numbers of fish species on small reefs can be viewed as a balance between immigration and local extinction. Interspace size diversity, one facet of reef heterogeneity, was not positively correlated with the number of fish species on either model or natural reefs. In addition, interspace size diversity had no significant effects on species composition. In most of the cases examined reef height, another aspect of reef heterogeneity, was positively correlated with the number of fish species and species diversity, H', on natural reefs. Observations of selected fish species inhabiting model reefs support the hy- pothesis that vertical zonation is a means of resource partitioning in these fish communities. A negative correlation was found between reef isolation and number of fish species on patch reefs. This corre- lation was strongest during periods when fish population sizes were lowest. Season had more of an effect on the structure of fish communities on model reefs than did succession. Immigration and local extinction of fish species occurred on model reefs throughout the study. Patterns of immigration and extinction approximated the predictions of the MacArthur-Wilson equi- librium model of insular zoogeography when species turnover was highest.
影响因子:
4.8
作者:
MACARTHUR, RH
通讯作者:
MACARTHUR, RH