Opposing intraspecific vs. interspecific diversity effects on herbivory and growth in subtropical experimental tree assemblages

doi:10.1093/jpe/rtw098

	Opposing intraspecific vs. interspecific diversity effects on herbivory and growth in subtropical experimental tree assemblages
	Hahn,Christoph Z.; Niklaus,Pascal A.; Bruelheide,Helge; Michalski,Stefan G.; Shi,Miaomiao; Yang,Xuefei; Zeng,Xueqin; Fischer,Markus; Durka,Walter
	2017
发表期刊	JOURNAL OF PLANT ECOLOGY
ISSN	1752-9921
卷号	10 期号:1 页码:242-251
摘要	Aims Positive plant diversity-ecosystem function relations are ultimately driven by variation in functional traits among individuals that form a community. To date, research has largely focused on the role of species diversity for ecosystem functioning. However, substantial intraspecific trait variation is common and a significant part of this variation caused by genetic differences among individuals. Here, we studied the relative importance of species diversity and seed family (SF) diversity within species for growth and herbivory in experimental subtropical tree assemblages. Methods In 2010, we set up a field experiment in subtropical China, using four species from the local species pool. Trees were raised from seeds, with seeds from the same mother tree forming an SF. We established 23 plots containing one or four species (species diversity treatment) and one or four SFs per species (SF diversity treatment). Tree growth (stem diameter, plant height and crown expansion) and herbivory (percentage leaf loss due to leaf chewers) were monitored annually from 2011 to 2013. Important findings Tree species richness promoted growth but had no effect on herbivory. In contrast, SF diversity reduced growth and increased herbivory but only so in species mixtures. Most of the observed effects were time dependent, with the largest effect found in 2013. Our results suggest that biodiversity can affect plant performance directly via tree species-species interactions, or context dependent, via potential effects on inter-trophic interactions. Two important conclusions should be drawn from our findings. Firstly, in future studies regarding biodiversity and ecosystem functioning (BEF) relationships, intraspecific genetic diversity should be given similar weight as species diversity as it has often been neglected and its effects are not well understood. Secondly, we demonstrate opposite effects of biodiversity among and within species, stressing the importance to consider the effects of multiple levels of biodiversity simultaneously.
关键词	Plant Genotypic Diversity Species-diversity Associational Resistance Biodiversity Experiment Community Structure Ecosystem Processes Insect Herbivores Genetic Diversity Current Knowledge Productivity Bef-china Species Diversity Genetic Diversity Growth Herbivory
学科领域	Plant Sciences ; Ecology
DOI	10.1093/jpe/rtw098
收录类别	SCI
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/54966
专题	资源植物与生物技术所级重点实验室
推荐引用方式 GB/T 7714	Hahn,Christoph Z.,Niklaus,Pascal A.,Bruelheide,Helge,et al. Opposing intraspecific vs. interspecific diversity effects on herbivory and growth in subtropical experimental tree assemblages[J]. JOURNAL OF PLANT ECOLOGY,2017,10(1):242-251.
APA	Hahn,Christoph Z..,Niklaus,Pascal A..,Bruelheide,Helge.,Michalski,Stefan G..,Shi,Miaomiao.,...&Durka,Walter.(2017).Opposing intraspecific vs. interspecific diversity effects on herbivory and growth in subtropical experimental tree assemblages.JOURNAL OF PLANT ECOLOGY,10(1),242-251.
MLA	Hahn,Christoph Z.,et al."Opposing intraspecific vs. interspecific diversity effects on herbivory and growth in subtropical experimental tree assemblages".JOURNAL OF PLANT ECOLOGY 10.1(2017):242-251.

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