Recovery of plant species diversity during long-term experimental warming of a species-rich alpine meadow community on the Qinghai-Tibet plateau

NWIPB OpenIR

	Recovery of plant species diversity during long-term experimental warming of a species-rich alpine meadow community on the Qinghai-Tibet plateau
	Zhang, Chunhui ; Willis, Charles G. ; Klein, Julia A. ; Ma, Zhen ; Li, Junyong ; Zhou, Huakun ; Zhao, Xinquan
	2017-09-01
发表期刊	BIOLOGICAL CONSERVATION
摘要	Climate change is predicted to dramatically alter the composition of plant communities. The impact of climate change on these communities is often based on short-term warming experiments, which have revealed marked declines in species diversity in response to relatively minor increases in average annual temperatures. The long-term effects of such warming on community diversity and composition, however, are less well understood. Here, we formalize a hypothesis of rebounding diversity, where species richness initially declines in response to warming, but subsequently recovers through a combination of colonization (via dispersal and seed banks) and competitive release (via shifts in the dominant species). We compared long-term changes in species diversity and abundance between control and experimentally warmed (1-2 degrees C) plots, sampled over an 18-year period, in alpine meadow communities of the Qinghai-Tibet plateau. While there was an initial decline in species diversity by c. 40% (11-19 species) over the first four years, 18 years later, diversity had rebounded to initial levels, on a par with control plots. The composition of the experimentally warmed communities, however, was significantly altered. Our study suggests that short-term experiments may be insufficient to capture the temporal variability in community diversity and composition in response to climate change. Rather, the long-term impacts of continued global warming are predicted to result in highly dynamic processes of community reassembly and turnover that do not necessarily lead to a net decline in local diversity, but do lead to the formation of novel communities.
出版者	ELSEVIER SCI LTD
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/23186
专题	中国科学院西北高原生物研究所
推荐引用方式 GB/T 7714	Zhang, Chunhui,Willis, Charles G.,Klein, Julia A.,et al. Recovery of plant species diversity during long-term experimental warming of a species-rich alpine meadow community on the Qinghai-Tibet plateau[J]. BIOLOGICAL CONSERVATION,2017.
APA	Zhang, Chunhui.,Willis, Charles G..,Klein, Julia A..,Ma, Zhen.,Li, Junyong.,...&Zhao, Xinquan.(2017).Recovery of plant species diversity during long-term experimental warming of a species-rich alpine meadow community on the Qinghai-Tibet plateau.BIOLOGICAL CONSERVATION.
MLA	Zhang, Chunhui,et al."Recovery of plant species diversity during long-term experimental warming of a species-rich alpine meadow community on the Qinghai-Tibet plateau".BIOLOGICAL CONSERVATION (2017).