FISH SPECIES DIVERSITY ON MODEL AND NATURAL REEF PATCHES: EXPERIMENTAL INSULAR BIOGEOGRAPHY'

FISH SPECIES DIVERSITY ON MODEL AND NATURAL REEF PATCHES: EXPERIMENTAL INSULAR BIOGEOGRAPHY'
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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
J. Molles
中科院分区:
环境科学与生态学1区
文献类型:
--
作者:
J. Molles

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与模型和天然礁斑块的鱼类群落进行了研究,以确定在这些系统中的鱼类物种的数量的异质性,面积和隔离的影响。季节和演替对这些社区的结构的影响进行了研究。物种周转估计,以确定是否可以被视为移民和当地灭绝之间的平衡的小珊瑚礁上的鱼类物种的数量。间隙大小的多样性,一个方面的珊瑚礁异质性,是不呈正相关的鱼类物种的数量模型或天然珊瑚礁。此外,空间大小多样性对物种组成没有显著影响。在大多数情况下,检查珊瑚礁的高度,珊瑚礁的异质性的另一个方面,与鱼类的数量和物种多样性,H ',天然珊瑚礁呈正相关。对栖息在模型礁上的选定鱼种的观察支持这样的假设,即垂直地带性是这些鱼类群落资源分配的一种手段。一个负相关关系被发现之间的礁隔离和鱼类物种的数量补丁礁。这种相关性在鱼类种群规模最低的时期最强。季节有更多的影响模型珊瑚礁上的鱼类群落结构比继承。在整个研究过程中,模型礁上发生了鱼类的移民和局部灭绝。移民和灭绝的模式近似于MacArthur-Wilson岛屿动物地理学的平衡模型的预测时,物种周转率最高。
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.
DOI: 10.2307/1931600
发表时间: 1958-01-01
期刊: ECOLOGY
影响因子: 4.8
作者:
MACARTHUR, RH
通讯作者: MACARTHUR, RH