作者: Lotte Korell , Robin Schmidt , Helge Bruelheide , Isabell Hensen , Harald Auge
DOI: 10.1007/S00442-015-3395-2
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摘要: Biodiversity experiments have shown that productivity usually increases with plant species richness. However, most of those studies disregarded the importance trophic interactions to diversity-productivity relationship, and focused on loss native while ignoring invasions by exotic species. Yet, as functional complementarity impact antagonists are likely differ between communities, relationship may change when communities invaded We conducted a mesocosm experiment test how diversity effects, evenness, differed assemblages grassland plants, these were influenced slug herbivory. In line other experiments, we found higher in than communities. different mechanisms (complementarity vs. selection effect) contributed positive relationships Against expectations, showed much lower evenness greater effect, suggesting competitive dominance among be even stronger Slug herbivory decreased independently origin diversity. threefold effect absence slugs, which was mainly driven differences responses legumes nonleguminous herbs. Our results imply underlying for early stages community development, differential groups generalist can contribute this pattern.