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DOI: 10.1371/journal.pone.0102920
Title:
The Role of Habitat Complexity in Community Development Is Mediated by Resource Availability
Author: Rachel S. Smith; Emma L. Johnston; Graeme F. Clark
Source Publication: PLOS ONE
ISSN: 1932-6203
Indexed By: SCI-E
Publishing Year: 2014
Date Published: 2014-7-23
Volume: 9, Issue:7
Language: 英语
Keyword: Species diversity ; Estuaries ; Invertebrates ; Taxonomy ; Habitats ; Community structure ; Barnacles ; Larvae
Subject in Chinese: 河口
Subject: ESTUARIES
English Abstract: Habitat complexity strongly affects the structure and dynamics of ecological communities, with increased complexity often leading to greater species diversity and abundance. However, habitat complexity changes as communities develop, and some species alter their environment to themselves provide habitat for other species. Most experimental studies manipulate basal substrate complexity, and while the importance of complexity likely changes during community development, few studies have examined the temporal dynamics of this variable. We used two experiments to quantify the importance of basal substrate complexity to sessile marine invertebrate community development through space and time. First, we compared effects of substrate complexity at 70 sites across ten estuaries. Sites differed in recruitment and community development rates, and after three months provided spatial variation in community development stage. Second, we tested for effects of substrate complexity at multiple times at a single site. In both experiments, complexity affected marine sessile invertebrate community composition in the early stages of community development when resource availability was high. Effects of complexity diminished through time as the amount of available space (the primary limiting resource) declined. Our work suggests the presence of a bare-space threshold, at which structural complexity of the basal substrate is overwhelmed by secondary biotic complexity. This threshold will be met at different times depending on local recruitment and growth rates and is likely to vary with productivity gradients.
Related Link: http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0102920&type=printable
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被引频次[WOS]:2   [查看WOS记录]     [查看WOS中相关记录]
Document Type: 期刊论文
Identifier: http://119.78.100.177/globalchange/handle/2HF3EXSE/18653
Appears in Collections:过去全球变化的重建
影响、适应和脆弱性
科学计划与规划
气候变化与战略
全球变化的国际研究计划
气候减缓与适应
气候变化事实与影响

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Affiliation: Odum School of Ecology, University of Georgia, Athens, Georgia, United States of America;Evolution and Ecology Research Centre, School of Biological, Earth and Environmental Science, University of New South Wales, Sydney, New South Wales, Australia;Evolution and Ecology Research Centre, School of Biological, Earth and Environmental Science, University of New South Wales, Sydney, New South Wales, Australia

Recommended Citation:
Rachel S. Smith,Emma L. Johnston,Graeme F. Clark. The Role of Habitat Complexity in Community Development Is Mediated by Resource Availability[J]. PLOS ONE,2014-01-01,9(7)
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