气候变化领域集成服务门户(CCPortal): The demographic effects of functional traits: an integral projection model approach reveals population-level consequences of reproduction-defence trade-offs

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DOI	10.1111/ele.13325
	The demographic effects of functional traits: an integral projection model approach reveals population-level consequences of reproduction-defence trade-offs
	Struckman S.; Couture J.J.; LaMar M.D.; Dalgleish H.J.
发表日期	2019
ISSN	1461023X
卷号	22 期号:9
英文摘要	Quantitatively linking individual variation in functional traits to demography is a necessary step to advance our understanding of trait-based ecological processes. We constructed a population model for Asclepias syriaca to identify how functional traits affect vital rates and population growth and whether trade-offs in chemical defence and demography alter population growth. Plants with higher foliar cardenolides had lower fibre, cellulose and lignin levels, as well as decreased sexual and clonal reproduction. Average cardenolide concentrations had the strongest effect on population growth. In both the sexual and clonal pathway, the trade-off between reproduction and defence affected population growth. We found that both increasing the mean of the distribution of individual plant values for cardenolides and herbivory decreased population growth. However, increasing the variance in both defence and herbivory increased population growth. Functional traits can impact population growth and quantifying individual-level variation in traits should be included in assessments of population-level processes. © 2019 John Wiley & Sons Ltd/CNRS
英文关键词	Asclepias syriaca; cardenolides; chemical defence; herbivory; intraspecific variation; Leaf Mass Area; leaf nitrogen; milkweed; population dynamics; spectroscopic analysis
语种	英语
scopus关键词	Asclepias; Asclepias syriaca; cardenolide; Asclepias; chemistry; herbivory; physiology; population density; reproduction; Virginia; Asclepias; Cardenolides; Herbivory; Population Density; Reproduction; Virginia
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/121187
作者单位	Department of Biology, College of William and Mary, Williamsburg, VA 23185, United States; Department of Entomology and Department of Forestry and Natural Resources, Purdue University, West Lafayette, IN 47907, United States
推荐引用方式 GB/T 7714	Struckman S.,Couture J.J.,LaMar M.D.,et al. The demographic effects of functional traits: an integral projection model approach reveals population-level consequences of reproduction-defence trade-offs[J],2019,22(9).
APA	Struckman S.,Couture J.J.,LaMar M.D.,&Dalgleish H.J..(2019).The demographic effects of functional traits: an integral projection model approach reveals population-level consequences of reproduction-defence trade-offs.Ecology Letters,22(9).
MLA	Struckman S.,et al."The demographic effects of functional traits: an integral projection model approach reveals population-level consequences of reproduction-defence trade-offs".Ecology Letters 22.9(2019).