Net neutral effects of a generalist vertebrate predator on seed production result from simultaneous suppression of plant antagonists and mutualists

doi:10.1016/j.baac.2015.11.003

	Net neutral effects of a generalist vertebrate predator on seed production result from simultaneous suppression of plant antagonists and mutualists
	Zhao, JY; He, K; Peng, YH; Wu, XW; Sun, SC; Wu, XW (reprint author), Nanjing Univ, Dept Biol, Nanjing 210093, Jiangsu, Peoples R China.
刊名	BASIC AND APPLIED ECOLOGY
	2016
卷号	17 期号:4 页码:344-351
关键词	Density-mediated Indirect Interactions Herbivore Pollinator Tibetan Plateau Top-down Control Trophic Cascade
DOI	10.1016/j.baac.2015.11.003
产权排序	3
文献子类	Article
英文摘要	Trophic cascade theory predicts that predators may confer a positive effect on plants through suppressing plant antagonists or a negative effect through limiting plant mutualists, but these positive and negative cascading predator effects have seldom been examined in combination. In a marshy Tibetan alpine meadow, we conducted a factorial experiment (presence vs. absence of both predators and herbivores) using replicate field enclosures over a growing season to determine the effects of the generalist predator, the plateau frog (Rana kukunoris), on the density of herbivorous grasshoppers (Chorthippus fallax) and the visitation rate of insect mutualists (pollinators), as well as corresponding levels of leaf damage and seed production in a Tibetan lotus (Saussurea nigrescens). Frogs reduced the capitulum visitation rate of insect pollinators. Frogs also reduced grasshopper density and the corresponding leaf damage in the plants. Consequently, simultaneous suppression of plant antagonists and mutualists resulted in net neutral effects of frogs on seed set ratio and seed number per capitulum in S. nigrescens. Our study suggests that simultaneously examining the effects of predators on plant mutualists and antagonists is necessary to fully understand the roles of generalist predators in natural food webs.
学科主题	Environmental Sciences & Ecology
语种	英语
资助机构	973 Program [2013CB956302] ; 973 Program [2013CB956302] ; National Natural Science Foundation of China [31470482, 31325004] ; National Natural Science Foundation of China [31470482, 31325004] ; Strategic Priority Research Program of the Chinese Academy of Sciences [XDA05050702] ; Strategic Priority Research Program of the Chinese Academy of Sciences [XDA05050702] ; 973 Program [2013CB956302] ; 973 Program [2013CB956302] ; National Natural Science Foundation of China [31470482, 31325004] ; National Natural Science Foundation of China [31470482, 31325004] ; Strategic Priority Research Program of the Chinese Academy of Sciences [XDA05050702] ; Strategic Priority Research Program of the Chinese Academy of Sciences [XDA05050702]
内容类型	期刊论文
源URL	[http://210.75.237.14/handle/351003/28123]
专题	成都生物研究所_生态研究
通讯作者	Wu, XW (reprint author), Nanjing Univ, Dept Biol, Nanjing 210093, Jiangsu, Peoples R China.
推荐引用方式 GB/T 7714	Zhao, JY,He, K,Peng, YH,et al. Net neutral effects of a generalist vertebrate predator on seed production result from simultaneous suppression of plant antagonists and mutualists[J]. BASIC AND APPLIED ECOLOGY,2016,17(4):344-351.
APA	Zhao, JY,He, K,Peng, YH,Wu, XW,Sun, SC,&Wu, XW .(2016).Net neutral effects of a generalist vertebrate predator on seed production result from simultaneous suppression of plant antagonists and mutualists.BASIC AND APPLIED ECOLOGY,17(4),344-351.
MLA	Zhao, JY,et al."Net neutral effects of a generalist vertebrate predator on seed production result from simultaneous suppression of plant antagonists and mutualists".BASIC AND APPLIED ECOLOGY 17.4(2016):344-351.