A global analysis of bidirectional interactions in alpine plant communities shows facilitators experiencing strong reciprocal fitness costs (SCI)

CORC > 寒区旱区环境与工程研究所 > 中科院寒区旱区环境与工程研究所（未分类） > 期刊论文

	A global analysis of bidirectional interactions in alpine plant communities shows facilitators experiencing strong reciprocal fitness costs (SCI)
	Schob C. ; Michalet R. ; Cavieres L. A. ; Pugnaire F. I. ; Brooker R. W. ; Butterfield B. J. ; Cook B. J. ; Kikvidze Z. ; Lortie C. J. ; Xiao S. ; Al Hayek P. ; Anthelme F. ; Cranston B. H. ; Garcia M. C. ; Le Bagousse-Pinguet Y. ; Reid A. M. ; le Roux P. C. ; Lingua E. ; Nyakatya M. J. ; Touzard B. ; Zhao L. ; Callaway R. M.
刊名	New Phytologist
	2014
卷号	202 期号:1 页码:95-105
英文摘要	Facilitative interactions are defined as positive effects of one species on another, but bidirectional feedbacks may be positive, neutral, or negative. Understanding the bidirectional nature of these interactions is a fundamental prerequisite for the assessment of the potential evolutionary consequences of facilitation. In a global study combining observational and experimental approaches, we quantified the impact of the cover and richness of species associated with alpine cushion plants on reproductive traits of the benefactor cushions. We found a decline in cushion seed production with increasing cover of cushion-associated species, indicating that being a benefactor came at an overall cost. The effect of cushion-associated species was negative for flower density and seed set of cushions, but not for fruit set and seed quality. Richness of cushion-associated species had positive effects on seed density and modulated the effects of their abundance on flower density and fruit set, indicating that the costs and benefits of harboring associated species depend on the composition of the plant assemblage. Our study demonstrates 'parasitic' interactions among plants over a wide range of species and environments in alpine systems, and we consider their implications for the possible selective effects of interactions between benefactor and beneficiary species.
收录类别	SCI
公开日期	2015-12-24
内容类型	期刊论文
源URL	[http://ir.casnw.net/handle/362004/24788]
专题	寒区旱区环境与工程研究所_中科院寒区旱区环境与工程研究所（未分类）_期刊论文
推荐引用方式 GB/T 7714	Schob C.,Michalet R.,Cavieres L. A.,et al. A global analysis of bidirectional interactions in alpine plant communities shows facilitators experiencing strong reciprocal fitness costs (SCI)[J]. New Phytologist,2014,202(1):95-105.
APA	Schob C..,Michalet R..,Cavieres L. A..,Pugnaire F. I..,Brooker R. W..,...&Callaway R. M..(2014).A global analysis of bidirectional interactions in alpine plant communities shows facilitators experiencing strong reciprocal fitness costs (SCI).New Phytologist,202(1),95-105.
MLA	Schob C.,et al."A global analysis of bidirectional interactions in alpine plant communities shows facilitators experiencing strong reciprocal fitness costs (SCI)".New Phytologist 202.1(2014):95-105.