Species richness, species range size and ecological specialisation among African primates: geographical patterns and conservation implications
Species richness, species range size and ecological specialisation among African primates: geographical patterns and conservation implications
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DOI：
10.1023/a:1008831320469
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发表时间：
1999-08-01
影响因子：
3.4
通讯作者：
Foley, RA
中科院分区：
文献类型：
--
作者：
Eeley, HAC;Foley, RA
研究了非洲黑猩猩（catarrhines）物种丰富度和物种范围大小的地理分布，并与栖息地和饮食生态位宽度的模式有关。卡他rhine物种丰富度集中在非洲中部和西部的赤道地区;这些地区的特点也是平均物种分布范围小，生态特异性增加。物种丰富度随着赤道以北和以南纬度的增加而下降，而平均物种范围大小，栖息地和食物宽度增加。物种丰富度，物种分布区大小和生态位宽度之间的关系仍然存在，一旦纬度和经度的影响已被删除。然而，在物种丰富度最低的地区，平均物种范围大小和生态位宽度的变化增加，并确定了两个趋势。虽然大多数这样的地区被一些分布广泛的通才所占据，但其他地区则被分布范围有限的专业物种所占据。保护工作越来越多地集中在高物种丰富度的地区可能是适当的，如果这些地区的特点也是物种的范围大小和生态多功能性更受限制，虽然可能需要特别考虑一些地区的低物种丰富度。
The geographical distribution of species richness and species range size of African anthropoid primates (catarrhines) is investigated and related to patterns of habitat and dietary niche breadth. Catarrhine species richness is concentrated in the equatorial regions of central and west Africa; areas that are also characterised by low average species range sizes and increased ecological specificity. Species richness declines with increasing latitude north and south of the equator, while average species range size, habitat and dietary breadth increase. Relationships between species richness, species range size and niche breadth remain once latitudinal and longitudinal effects have been removed. Among areas of lowest species richness, however, there is increased variation in terms of average species range size and niche breadth, and two trends are identified. While most such areas are occupied by a few wide-ranging generalists, others are occupied by range-restricted specialist species. That conservation efforts increasingly focus on regions of high species richness may be appropriate if these regions are also characterised by species that are more restricted in both their range size and their ecological versatility, although special consideration may be required for some areas of low species richness.