Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1098/rsbl.2004.0181 |
Do positive interactions increase with abiotic stress? - A test from a semi-arid steppe | |
Maestre, FT; Cortina, J | |
通讯作者 | Maestre, FT |
来源期刊 | PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
![]() |
ISSN | 0962-8452 |
出版年 | 2004 |
卷号 | 271页码:S331-S333 |
英文摘要 | Theoretical models predict that the relative importance of facilitation and competition may vary inversely across gradients of abiotic stress. However, these predictions have not been thoroughly tested in the field, especially in semi-arid environments. In this study, we evaluated how the net effect of the tussock grass Stipa tenacissima on the shrub Pistacia lentiscus varied across a gradient of abiotic stress in semi-arid Mediterranean steppes. We fitted the relationship between accumulated rainfall and the relative neighbour index (our measures of abiotic stress and of the net effect of S. tenacissima on P. lentiscus, respectively), which varied across this gradient, to a quadratic model. Competitive interactions dominated at both extremes of the gradient. Our results do not support established theory. Instead, they suggest that a shift from facilitation to competition under high abiotic stress conditions is likely to occur when the levels of the most limiting resource are so low that the benefits provided by the facilitator cannot overcome its own resource uptake. |
英文关键词 | facilitation competition Stipa tenacissima environmental gradient Pistacia lentiscus abiotic stress |
类型 | Article |
语种 | 英语 |
国家 | USA ; Spain |
收录类别 | SCI-E |
WOS记录号 | WOS:000223099800023 |
WOS关键词 | RELATIVE IMPORTANCE ; PLANT INTERACTIONS ; STIPA-TENACISSIMA ; FACILITATION ; INTERFERENCE ; DESERT ; SHRUB ; COMMUNITIES ; DYNAMICS ; PATTERNS |
WOS类目 | Biology ; Ecology ; Evolutionary Biology |
WOS研究方向 | Life Sciences & Biomedicine - Other Topics ; Environmental Sciences & Ecology ; Evolutionary Biology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/147920 |
作者单位 | (1)Duke Univ, Dept Biol, Durham, NC 27708 USA;(2)Univ Alicante, Dept Ecol, E-03080 Alicante, Spain |
推荐引用方式 GB/T 7714 | Maestre, FT,Cortina, J. Do positive interactions increase with abiotic stress? - A test from a semi-arid steppe[J],2004,271:S331-S333. |
APA | Maestre, FT,&Cortina, J.(2004).Do positive interactions increase with abiotic stress? - A test from a semi-arid steppe.PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES,271,S331-S333. |
MLA | Maestre, FT,et al."Do positive interactions increase with abiotic stress? - A test from a semi-arid steppe".PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES 271(2004):S331-S333. |
条目包含的文件 | 条目无相关文件。 |
个性服务 |
推荐该条目 |
保存到收藏夹 |
导出为Endnote文件 |
谷歌学术 |
谷歌学术中相似的文章 |
[Maestre, FT]的文章 |
[Cortina, J]的文章 |
百度学术 |
百度学术中相似的文章 |
[Maestre, FT]的文章 |
[Cortina, J]的文章 |
必应学术 |
必应学术中相似的文章 |
[Maestre, FT]的文章 |
[Cortina, J]的文章 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。