气候变化领域集成服务门户(CCPortal): Abundance and generalisation in mutualistic networks: Solving the chicken-and-egg dilemma

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DOI	10.1111/ele.12535
	Abundance and generalisation in mutualistic networks: Solving the chicken-and-egg dilemma
	Fort H.; Vázquez D.P.; Lan B.L.
发表日期	2016
ISSN	1461-023X
EISSN	1461-0248
卷号	19 期号:1
英文摘要	A frequent observation in plant-animal mutualistic networks is that abundant species tend to be more generalised, interacting with a broader range of interaction partners than rare species. Uncovering the causal relationship between abundance and generalisation has been hindered by a chicken-and-egg dilemma: is generalisation a by-product of being abundant, or does high abundance result from generalisation? Here, we analyse a database of plant-pollinator and plant-seed disperser networks, and provide strong evidence that the causal link between abundance and generalisation is uni-directional. Specifically, species appear to be generalists because they are more abundant, but the converse, that is that species become more abundant because they are generalists, is not supported by our analysis. Furthermore, null model analyses suggest that abundant species interact with many other species simply because they are more likely to encounter potential interaction partners. © 2016 John Wiley & Sons Ltd/CNRS.
英文关键词	Causality; Generalisation; Mutualistic networks; Plant-animal interactions; Pollination; Seed dispersal; Specialisation
学科领域	abundance; animal community; egg; interspecific interaction; mutualism; plant community; pollination; seed dispersal; specialization; Animalia; animal; biological model; food chain; plant; pollination; population density; seed dispersal; symbiosis; Animals; Food Chain; Models, Biological; Plants; Pollination; Population Density; Seed Dispersal; Symbiosis
语种	英语
scopus关键词	abundance; animal community; egg; interspecific interaction; mutualism; plant community; pollination; seed dispersal; specialization; Animalia; animal; biological model; food chain; plant; pollination; population density; seed dispersal; symbiosis; Animals; Food Chain; Models, Biological; Plants; Pollination; Population Density; Seed Dispersal; Symbiosis
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/118605
作者单位	Physics Department, Faculty of Sciences, Universidad de la República, Igua 4225, Montevideo, 11400, Uruguay; Argentine Institute for Dryland Research, CONICET, CC 507, Mendoza, 5500, Argentina; Faculty of Exact and Natural Sciences, National University of Cuyo, M5502JMA, Mendoza, Argentina; Electrical and Computer Systems Engineering, School of Engineering, Monash University, Bandar Sunway, 47500, Malaysia
推荐引用方式 GB/T 7714	Fort H.,Vázquez D.P.,Lan B.L.. Abundance and generalisation in mutualistic networks: Solving the chicken-and-egg dilemma[J],2016,19(1).
APA	Fort H.,Vázquez D.P.,&Lan B.L..(2016).Abundance and generalisation in mutualistic networks: Solving the chicken-and-egg dilemma.Ecology Letters,19(1).
MLA	Fort H.,et al."Abundance and generalisation in mutualistic networks: Solving the chicken-and-egg dilemma".Ecology Letters 19.1(2016).