Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.ppees.2012.09.004 |
Local filters limit species diversity, but species pools determine composition | |
Rajaniemi, Tara K.1; Goldberg, Deborah E.2; Turkington, Roy3,4; Dyer, Andrew R.2 | |
通讯作者 | Rajaniemi, Tara K. |
来源期刊 | PERSPECTIVES IN PLANT ECOLOGY EVOLUTION AND SYSTEMATICS
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ISSN | 1433-8319 |
出版年 | 2012 |
卷号 | 14期号:6页码:373-380 |
英文摘要 | In a series of three experiments, we tested for effects of species pools, resource stress, and species interactions on four aspects of community structure: species richness, evenness, species composition, and functional group composition. We also examined whether the impacts of species interactions on the community varied with resource availability or species pool. Communities of sand dune annuals grew from seed bank samples collected from two sites in three different years, so that the species pool differed at two levels: the source site and the year of seed bank collection. Communities experienced one of three irrigation treatments and a range of sowing densities, which varied resource supply (stress) and the potential for species interactions, respectively. Species richness and evenness were most affected by local factors: higher densities and lower water availability decreased species diversity. In contrast, species composition was influenced most by the species pool. Functional group composition had an intermediate response, and was affected by both species pools and local filters. Resource stress and species interactions strongly filtered species from the community, but the identity of species remaining was variable. Furthermore, the magnitude of species interaction effects on richness and evenness varied with species pools. Thus, the outcome of species sorting among biotic and abiotic environments was dependent on the pool of available species. Contrary to predictions from theory, the effects of species interactions on the community did not vary consistently with resource levels. (C) 2012 Elsevier GmbH. All rights reserved. |
英文关键词 | Species interactions Species richness Precipitation Sand dune annuals Plant density |
类型 | Article |
语种 | 英语 |
国家 | USA ; Canada |
收录类别 | SCI-E |
WOS记录号 | WOS:000313092500001 |
WOS关键词 | COMMUNITY-LEVEL CONSEQUENCES ; ANNUAL PLANT COMMUNITY ; FRAGMENTED LANDSCAPE ; NEGEV DESERT ; COMPETITION ; PRODUCTIVITY ; RICHNESS ; GRADIENT ; DISTRIBUTIONS ; FACILITATION |
WOS类目 | Plant Sciences ; Ecology |
WOS研究方向 | Plant Sciences ; Environmental Sciences & Ecology |
来源机构 | Arizona State University |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/174360 |
作者单位 | 1.Univ Massachusetts Dartmouth, Dept Biol, N Dartmouth, MA 02747 USA; 2.Univ Michigan, Dept Ecol & Evolutionary Biol, Ann Arbor, MI 48109 USA; 3.Univ British Columbia, Dept Bot, Vancouver, BC V6T 1Z4, Canada; 4.Univ British Columbia, Biodivers Res Ctr, Vancouver, BC V6T 1Z4, Canada |
推荐引用方式 GB/T 7714 | Rajaniemi, Tara K.,Goldberg, Deborah E.,Turkington, Roy,et al. Local filters limit species diversity, but species pools determine composition[J]. Arizona State University,2012,14(6):373-380. |
APA | Rajaniemi, Tara K.,Goldberg, Deborah E.,Turkington, Roy,&Dyer, Andrew R..(2012).Local filters limit species diversity, but species pools determine composition.PERSPECTIVES IN PLANT ECOLOGY EVOLUTION AND SYSTEMATICS,14(6),373-380. |
MLA | Rajaniemi, Tara K.,et al."Local filters limit species diversity, but species pools determine composition".PERSPECTIVES IN PLANT ECOLOGY EVOLUTION AND SYSTEMATICS 14.6(2012):373-380. |
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