Contrasting spatial patterns of taxonomic and functional richness offer insights into potential loss of ecosystem services
Contrasting spatial patterns of taxonomic and functional richness offer insights into potential loss of ecosystem services
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DOI：
10.1098/rstb.2008.0317
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发表时间：
2009-06-27
影响因子：
6.3
通讯作者：
Child, Matthew F.
中科院分区：
文献类型：
--
作者：
Cumming, Graeme S.;Child, Matthew F.
功能和营养的角度来看，物种发生的模式有可能提供新的和有趣的见解，在生态和保护的一系列空间明确的问题。我们提出的功能区的关系（FAR），并探讨南非鸟类的功能和分类物种丰富度之间的联系。我们首先使用喙形态分类的151个南非鸟类的一个子集分为18个功能组，并计算了种-面积关系和FAR在四分之一度的分辨率为南非。细胞功能丰富度和分类丰富度之间的关系是二次的，而不是线性的，曲线周围有相当大的分散。接下来，我们研究了分类多样性和反应多样性（即功能组内的多样性）之间的空间关系，使用几乎所有南非鸟类的先验分类为9个功能组。响应丰富度的空间分布也表现出相当大的变化，分类丰富度。我们的研究结果表明，一种新的方法来连接分类，功能和营养模式的空间，并提出了一种方式，其中保护规划，传统上有一个分类的重点，可以正式纳入更多的功能和食物网为基础的方法。
Functional and trophic perspectives on patterns of species occurrences have the potential to offer new and interesting insights into a range of spatially explicit problems in ecology and conservation. We present the function-area relationship (FAR) and explore linkages between functional and taxonomic species richness for South African birds. We first used beak morphology to classify a subset of 151 South African bird species into 18 functional groups and calculated both the species-area relationship and the FAR at quarter-degree resolution for South Africa. The relationship between functional and taxonomic richness by cell was quadratic rather than linear, with considerable scatter around the curve. We next looked at the spatial relationships between taxonomic diversity and response diversity (i.e. diversity within functional groups) using an a priori categorization of nearly all South African birds into nine functional groups. The spatial distribution of response richness also showed considerable variation in relation to taxonomic richness. Our results demonstrate a novel approach to linking taxonomic, functional and trophic patterns in space and suggest a way in which conservation planning, which has traditionally had a taxonomic focus, could formally incorporate a more functional and food-web-based approach.