气候变化领域集成服务门户(CCPortal): Grazing intensifies degradation of a Tibetan Plateau alpine meadow through plant-pest interaction

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DOI	10.1002/ece3.1537
	Grazing intensifies degradation of a Tibetan Plateau alpine meadow through plant-pest interaction
	Cao, Hui; Zhao, Xinquan; Wang, Shiping; Zhao, Liang; Duan, Jichuang; Zhang, Zhenhua; Ge, Shidong; Zhu, Xiaoxue
通讯作者	Zhao, XQ (通讯作者)
发表日期	2015
ISSN	2045-7758
起始页码	2478
结束页码	2486
卷号	5 期号:12
英文摘要	Understanding the plant-pest interaction under warming with grazing conditions is critical to predict the response of alpine meadow to future climate change. We investigated the effects of experimental warming and grazing on the interaction between plants and the grassland caterpillar Gynaephora menyuanensis in an alpine meadow on the Tibetan Plateau in 2010 and 2011. Our results showed that grazing significantly increased nitrogen concentration in graminoids and sward openness with a lower sward height, sward coverage, and plant litter mass in the community. Grazing significantly increased G.menyuanensis body size and potential fecundity in 2010. The increases in female body size were about twofold greater than in males. In addition, grazing significantly increased G.menyuanensis density and its negative effects on aboveground biomass and graminoid coverage in 2011. We found that G.menyuanensis body size was significantly positively correlated with nitrogen concentration in graminoids but negatively correlated with plant litter mass. Even though warming did not significantly increased G.menyuanensis performance and the negative effects of G.menyuanensis on alpine meadow, the increases in G.menyuanensis growth rate and its negative effect on aboveground biomass under the warming with grazing treatment were significantly higher than those under the no warming with grazing treatment. The positive effects of grazing on G.menyuanensis performance and its damage were exacerbated by the warming treatment. Our results suggest that the fitness of G.menyuanensis would increase under future warming with grazing conditions, thereby posing a greater risk to alpine meadow and livestock production.
关键词	BEHAVIORAL THERMOREGULATION GYNAEPHORA-GROENLANDICA NITROGEN-CONTENT CATERPILLARS LYMANTRIIDAE LEPIDOPTERA TEMPERATURE RESPONSES METAANALYSIS RESPIRATION
英文关键词	Alpine meadow; experimental warming; grassland caterpillar; grazing; Gynaephora menyuanensis; plant-pest interaction; Tibetan Plateau
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Evolutionary Biology
WOS类目	Ecology ; Evolutionary Biology
WOS记录号	WOS:000356370400016
来源期刊	ECOLOGY AND EVOLUTION
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/258501
推荐引用方式 GB/T 7714	Cao, Hui,Zhao, Xinquan,Wang, Shiping,et al. Grazing intensifies degradation of a Tibetan Plateau alpine meadow through plant-pest interaction[J]. 中国科学院青藏高原研究所,2015,5(12).
APA	Cao, Hui.,Zhao, Xinquan.,Wang, Shiping.,Zhao, Liang.,Duan, Jichuang.,...&Zhu, Xiaoxue.(2015).Grazing intensifies degradation of a Tibetan Plateau alpine meadow through plant-pest interaction.ECOLOGY AND EVOLUTION,5(12).
MLA	Cao, Hui,et al."Grazing intensifies degradation of a Tibetan Plateau alpine meadow through plant-pest interaction".ECOLOGY AND EVOLUTION 5.12(2015).