Plant-mediated resource partitioning by coexisting parasitoids

doi:10.1002/ecy.1834

	Plant-mediated resource partitioning by coexisting parasitoids
	Xi, XQ; Yang, YHS; Yang, YH; Segoli, M; Sun, SC; Sun, SC (reprint author), Nanjing Univ, Sch Life Sci, Dept Ecol, 163 Xianlin Ave, Nanjing 210023, Jiangsu, Peoples R China.; Sun, SC (reprint author), Chinese Acad Sci, Chengdu Inst Biol, Ctr Ecol Studies, 9 Sect 4,Renminnan Rd, Chengdu 610041, Peoples R China.
刊名	ECOLOGY
	2017
卷号	98 期号:6 页码:1660-1670
关键词	Asteraceae Plant Bottom-up Control Food Web Parasitoid Wasp Plant-mediated Parasitoid Coexistence Resource Partitioning Species Coexistence Tibetan Plateau
DOI	10.1002/ecy.1834
产权排序	3
文献子类	Article
英文摘要	Although it has been frequently suggested that resource partitioning of species coexisting at the same trophic level can be mediated by interactions with species at non-adjacent trophic levels, empirical evidence supporting this claim is scarce. Here we demonstrate that plants may mediate resource partitioning for two parasitoids that share the same herbivorous host. The tephritid fly Tephritis femoralis is the primary pre-dispersal seed predator of two Asteraceae species, Saussurea nigrescens and Anaphalis flavescens, both of which dominate the plant community in the alpine meadows of the Tibetan Plateau. Field surveys and molecular barcoding analyses showed that the identity of the fly's main predator depended on the plant in which the fly developed. Tephritid flies that developed in S. nigrescens were preyed upon mainly by the parasitoid wasp Pteromalus albipennis, while the parasitoid Mesopolobus sp. was the main predator of flies that developed in A. flavescens. Microcosm experiments revealed that P. albipennis could not exploit the host flies within the capitula of A. flavescens due to food limitation (capitula are too small), while Mesopolobus sp. could not exploit the host flies within the capitula of S. nigrescens due to its inability to reach the host with its ovipositor (capitula are too large). Such bottom-up control of plant species traits may facilitate the coexistence of parasitoid wasps sharing a common host in this system. We suggest that interactions between non-adjacent trophic levels may potentially promote species coexistence and diversity in biological communities.
学科主题	Environmental Sciences & Ecology
语种	英语
资助机构	We thank Jay A. Rosenheim, Jim Cronin and two anonymous reviewers for the helpful comments they contributed to the earlier versions of this manuscript; Rui Cao and Hanxiang Chen for their field assistance; and Qinghai-Tibetan Research Base of Southwest University for Nationalities for providing research facilities. This study was financially supported by grants from National Natural Science Foundation of China (31325004, 31530007, and 31500395). ; National Natural Science Foundation of China [31325004, 31530007, 31500395] ; We thank Jay A. Rosenheim, Jim Cronin and two anonymous reviewers for the helpful comments they contributed to the earlier versions of this manuscript; Rui Cao and Hanxiang Chen for their field assistance; and Qinghai-Tibetan Research Base of Southwest University for Nationalities for providing research facilities. This study was financially supported by grants from National Natural Science Foundation of China (31325004, 31530007, and 31500395). ; National Natural Science Foundation of China [31325004, 31530007, 31500395] ; We thank Jay A. Rosenheim, Jim Cronin and two anonymous reviewers for the helpful comments they contributed to the earlier versions of this manuscript; Rui Cao and Hanxiang Chen for their field assistance; and Qinghai-Tibetan Research Base of Southwest University for Nationalities for providing research facilities. This study was financially supported by grants from National Natural Science Foundation of China (31325004, 31530007, and 31500395). ; National Natural Science Foundation of China [31325004, 31530007, 31500395] ; We thank Jay A. Rosenheim, Jim Cronin and two anonymous reviewers for the helpful comments they contributed to the earlier versions of this manuscript; Rui Cao and Hanxiang Chen for their field assistance; and Qinghai-Tibetan Research Base of Southwest University for Nationalities for providing research facilities. This study was financially supported by grants from National Natural Science Foundation of China (31325004, 31530007, and 31500395). ; National Natural Science Foundation of China [31325004, 31530007, 31500395]
内容类型	期刊论文
源URL	[http://210.75.237.14/handle/351003/29131]
专题	成都生物研究所_生态研究
通讯作者	Sun, SC (reprint author), Nanjing Univ, Sch Life Sci, Dept Ecol, 163 Xianlin Ave, Nanjing 210023, Jiangsu, Peoples R China.; Sun, SC (reprint author), Chinese Acad Sci, Chengdu Inst Biol, Ctr Ecol Studies, 9 Sect 4,Renminnan Rd, Chengdu 610041, Peoples R China.
推荐引用方式 GB/T 7714	Xi, XQ,Yang, YHS,Yang, YH,et al. Plant-mediated resource partitioning by coexisting parasitoids[J]. ECOLOGY,2017,98(6):1660-1670.
APA	Xi, XQ.,Yang, YHS.,Yang, YH.,Segoli, M.,Sun, SC.,...&Sun, SC .(2017).Plant-mediated resource partitioning by coexisting parasitoids.ECOLOGY,98(6),1660-1670.
MLA	Xi, XQ,et al."Plant-mediated resource partitioning by coexisting parasitoids".ECOLOGY 98.6(2017):1660-1670.