气候变化领域集成服务门户(CCPortal): Hidden layers of density dependence in consumer feeding rates

CCPortal

DOI	10.1111/ele.13670
	Hidden layers of density dependence in consumer feeding rates
	Stouffer D.B.; Novak M.
发表日期	2021
ISSN	1461023X
起始页码	520
结束页码	532
卷号	24 期号:3
英文摘要	Functional responses relate a consumer's feeding rates to variation in its abiotic and biotic environment, providing insight into consumer behaviour and fitness, and underpinning population and food-web dynamics. Despite their broad relevance and long-standing history, we show here that the types of density dependence found in classic resource- and consumer-dependent functional-response models equate to strong and often untenable assumptions about the independence of processes underlying feeding rates. We first demonstrate mathematically how to quantify non-independence between feeding and consumer interference and between feeding on multiple resources. We then analyse two large collections of functional-response data sets to show that non-independence is pervasive and borne out in previously hidden forms of density dependence. Our results provide a new lens through which to view variation in consumer feeding rates and disentangle the biological underpinnings of species interactions in multi-species contexts. © 2021 John Wiley & Sons Ltd
关键词	Generalist–specialist continuum higher-order interactions indirect effects interaction modifications mutual predator effects non-additive effects
英文关键词	density dependence; ecological approach; environmental factor; feeding behavior; fitness; food web; functional response; biological model; food chain; Food Chain; Models, Biological
语种	英语
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/204495
作者单位	Centre for Integrative Ecology, School of Biological Sciences, University of Canterbury, Christchurch, 8041, New Zealand; Department of Integrative Biology, Oregon State University, Corvallis, OR 97331, United States
推荐引用方式 GB/T 7714	Stouffer D.B.,Novak M.. Hidden layers of density dependence in consumer feeding rates[J],2021,24(3).
APA	Stouffer D.B.,&Novak M..(2021).Hidden layers of density dependence in consumer feeding rates.Ecology Letters,24(3).
MLA	Stouffer D.B.,et al."Hidden layers of density dependence in consumer feeding rates".Ecology Letters 24.3(2021).