气候变化领域集成服务门户(CCPortal): Survival rates indicate that correlations between community-weighted mean traits and environments can be unreliable estimates of the adaptive value of traits

CCPortal

DOI	10.1111/ele.12914
	Survival rates indicate that correlations between community-weighted mean traits and environments can be unreliable estimates of the adaptive value of traits
	Laughlin D.C.; Strahan R.T.; Adler P.B.; Moore M.M.
发表日期	2018
ISSN	1461023X
卷号	21 期号:3
英文摘要	Correlations between community-weighted mean (CWM) traits and environmental gradients are often assumed to quantify the adaptive value of traits. We tested this assumption by comparing these correlations with models of survival probability using 46 perennial species from long-term permanent plots in pine forests of Arizona. Survival was modelled as a function of trait × environment interactions, plant size, climatic variation and neighbourhood competition. The effect of traits on survival depended on the environmental conditions, but the two statistical approaches were inconsistent. For example, CWM-specific leaf area (SLA) and soil fertility were uncorrelated. However, survival was highest for species with low SLA in infertile soil, a result which agreed with expectations derived from the physiological trade-off underpinning leaf economic theory. CWM trait–environment relationships were unreliable estimates of how traits affected survival, and should only be used in predictive models when there is empirical support for an evolutionary trade-off that affects vital rates. © 2018 John Wiley & Sons Ltd/CNRS
英文关键词	Community assembly; environmental filtering; flowering phenology; functional traits; plant demography; soil C : N ratio; species interactions; specific leaf area; specific root length
语种	英语
scopus关键词	Arizona; forest; pine; plant leaf; soil; survival rate; Arizona; Forests; Pinus; Plant Leaves; Soil; Survival Rate
来源期刊	Ecology Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/121353
作者单位	Department of Botany, University of Wyoming, 1000 E. University Ave., Laramie, WY 82071, United States; Southern Oregon University, Biology and Environmental Science and Policy Programs, 1250 Siskiyou Boulevard, Ashland, OR 97520, United States; Department of Wildland Resources and the Ecology Center, Utah State University, Logan, UT 84322, United States; School of Forestry, Northern Arizona University, Flagstaff, AZ 86011, United States
推荐引用方式 GB/T 7714	Laughlin D.C.,Strahan R.T.,Adler P.B.,et al. Survival rates indicate that correlations between community-weighted mean traits and environments can be unreliable estimates of the adaptive value of traits[J],2018,21(3).
APA	Laughlin D.C.,Strahan R.T.,Adler P.B.,&Moore M.M..(2018).Survival rates indicate that correlations between community-weighted mean traits and environments can be unreliable estimates of the adaptive value of traits.Ecology Letters,21(3).
MLA	Laughlin D.C.,et al."Survival rates indicate that correlations between community-weighted mean traits and environments can be unreliable estimates of the adaptive value of traits".Ecology Letters 21.3(2018).