Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/ele.12781 |
Constraints on trait combinations explain climatic drivers of biodiversity: the importance of trait covariance in community assembly | |
Dwyer, John M.1,2; Laughlin, Daniel C.3,4,5 | |
2017-07-01 | |
发表期刊 | ECOLOGY LETTERS
![]() |
ISSN | 1461-023X |
EISSN | 1461-0248 |
出版年 | 2017 |
卷号 | 20期号:7 |
文章类型 | Article |
语种 | 英语 |
国家 | Australia; New Zealand; USA |
英文摘要 | Trade-offs maintain diversity and structure communities along environmental gradients. Theory indicates that if covariance among functional traits sets a limit on the number of viable trait combinations in a given environment, then communities with strong multidimensional trait constraints should exhibit low species diversity. We tested this prediction in winter annual plant assemblages along an aridity gradient using multilevel structural equation modelling. Univariate and multivariate functional diversity measures were poorly explained by aridity, and were surprisingly poor predictors of community richness. By contrast, the covariance between maximum height and seed mass strengthened along the aridity gradient, and was strongly associated with richness declines. Community richness had a positive effect on local neighbourhood richness, indicating that climate effects on trait covariance indirectly influence diversity at local scales. We present clear empirical evidence that declines in species richness along gradients of environmental stress can be due to increasing constraints on multidimensional phenotypes. |
英文关键词 | Aridity functional traits habitat filtering species richness winter annual York gum woodlands |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000403794100008 |
WOS关键词 | PLANT-SPECIES RICHNESS ; CENTRAL AUSTRALIAN PLANTS ; DESERT ANNUALS ; FUNCTIONAL TRAITS ; SEED DISPERSAL ; LEAF-HEIGHT ; LONG-TERM ; TRADE-OFF ; COEXISTENCE ; DIVERSITY |
WOS类目 | Ecology |
WOS研究方向 | Environmental Sciences & Ecology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/31337 |
专题 | 资源环境科学 |
作者单位 | 1.Univ Queensland, Sch Biol Sci, Brisbane, Qld 4072, Australia; 2.CSIRO Land & Water, Ecosci Precinct, Dutton Pk, Brisbane, Qld 4072, Australia; 3.Univ Waikato, Environm Res Inst, Hamilton 3240, New Zealand; 4.Univ Waikato, Sch Sci, Hamilton 3240, New Zealand; 5.Univ Wyoming, Dept Bot, 1000 East Univ Dr, Laramie, WY 82071 USA |
推荐引用方式 GB/T 7714 | Dwyer, John M.,Laughlin, Daniel C.. Constraints on trait combinations explain climatic drivers of biodiversity: the importance of trait covariance in community assembly[J]. ECOLOGY LETTERS,2017,20(7). |
APA | Dwyer, John M.,&Laughlin, Daniel C..(2017).Constraints on trait combinations explain climatic drivers of biodiversity: the importance of trait covariance in community assembly.ECOLOGY LETTERS,20(7). |
MLA | Dwyer, John M.,et al."Constraints on trait combinations explain climatic drivers of biodiversity: the importance of trait covariance in community assembly".ECOLOGY LETTERS 20.7(2017). |
条目包含的文件 | 条目无相关文件。 |
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。
修改评论