Directional changes of species spatial dispersion and realized environmental niches drive plant community assembly during early plant succession

作     者：Werner Ulrich Markus Klemens Zaplata Susanne Winter Anton Fischer 

作者机构：Department of Ecology and BiogeographyNicolaus Copernicus University in TorunLwowska 1PL 87-100 ToruńPoland Hydrology and Water Resources ManagementBrandenburg University of Technology Cottbus-SenftenbergSiemens-Halske-Ring 10D-03046 CottbusGermany Faculty of Forest and EnvironmentSection of Applied Ecology and ZoologyEberswalde University of Sustainable DevelopmentAlfred-Möller-Str.5D-16225 EberswaldeGermany Department of GeobotanyCenter of Life and Food SciencesTechnische Universität MünchenHans-Carl-von-Carlowitz-Platz 2D-85354 FreisingGermany 

出 版 物：《Journal of Plant Ecology》 (植物生态学报（英文版）)

年 卷 期：2019年第12卷第3期

页      面：409-418页

核心收录：

学科分类：0710[理学-生物学] 071001[理学-植物学] 07[理学] 

基　　金：This study was part of the TransRegio Collaborative Research Centre 38(SFB/TR 38:ecosystem assembly and succes-sion),which was financially supported by the Deutsche Forschungsgemeinschaft(DFG,Bonn)and the Brandenburg Ministry of Science,Research and Culture(MWFK,Potsdam) The authors thank the working group Z1(monitoring)mem-bers of the SFB/TR 38,who helped us to perform this study and the Vattenfall Europe Mining AG for providing the re-search site.W.U.acknowledges funding from the Polish National Science Centre(2014/13/B/NZ8/04681) Hazel Pearson kindly improved the language.Conflict of interest statement.None declared 

主　　题：primary succession spatial analysis environmental niche functional traits species aggregation 

摘      要：Aims Probabilistic models of species co-occurrences predict aggre-gated intraspecific spatial distributions that might decrease the degree of joint species occurrences and increase community ***,little is known about the influence of intraspecific aggre-gation on the co-occurrence of species in natural,species-rich ***,we focus on early plant succession and ask how changes in intraspecific aggregation of colonizing plant spe-cies influence the pattern of species co-existence,richness and *** We studied the early vegetation succession in a six ha constructed catchment within the abandoned part of a lignite mine in NE *** two spatial scales(1-and 25-m2 plots),we compared for each pair of species the intraspecific degree of aggregation and the pattern of co-occurrence and compared observed rela-tionships with temporal changes in important species functional *** Findings The majority of species occurred in an aggregated manner,particu-larly in the first 2 years of *** pairwise comparisons,we found an excess of segregated species occurrences leading to a posi-tive link between intraspecific aggregation and pairwise species seg-regation as predicted by the aggregation hypothesis,particularly at the lower spatial *** degree of intraspecific aggregation was negatively correlated with the community-wide level of species spatial turnover and with plot species *** results are the first direct confirmation that increasing intraspecific aggregation and interspecific competitive interactions counteract in shaping plant community structure during *** respective effects of aggregation were strongest at intermediate states of early succession.