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作 者:Nidal Odat Frank H.Hellwig Gottfried Jetschke Markus Fischer
机构地区:[1]Institute of Ecology,Friedrich-Schiller-University,Dornburger Straße 159,07743 Jena,Germany [2]Department of Biology,Al-Hussein Bin Talal University,PO Box 20,Ma’an,Jordan [3]Institute of Systematic Botany,Friedrich-Schiller-University,Philosophenweg 16,D-07743 Jena,Germany [4]Institute of Plant Sciences,University of Bern,Altenbergrain 21,CH-3013 Bern,Switzerland
出 处:《Journal of Plant Ecology》2010年第1期41-48,共8页植物生态学报(英文版)
基 金:German Federal Ministry of Education and Research(01LC0013).
摘 要:Aims and Methods The relationship between genetic diversity and species diversity and the underlying mechanisms are of both fundamental and applied interest.We used amplified fragment length polymorphism(AFLP)and vegetation records to investigate the association between genetic diversity of Plantago lanceolata and plant species diversity using 15 grassland communities in central Germany.We used correlation and partial correlation analyses to examine whether relationships between genetic and species diversity were direct or mediated by environmental differences between habitats.Important Findings Both within-and between-population genetic diversity of P.lanceolata were significantly positively correlated with plant species diversity within and between sites.Simple and partial correlations revealed that the positive correlations indirectly resulted from the effects of abiotic habitat characteristics on plant species diversity and,via abundance,on genetic diversity of P.lanceolata.Thus,they did not reflect a direct causal relationship between plant species diversity and genetic diversity of P.lanceolata,as would have been expected based on the hypothesis of a positive relationship between plant species diversity and niche diversity.
关 键 词:diversity BIODIVERSITY CONSERVATION ecological niche genetic diversity species richness
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