The Importance of Being First: Exploring Priority and Diversity Effects in a Grassland Field Experiment.
作者： Emanuela W. A. Weidlich , Philipp von Gillhaussen , Benjamin M. Delory , Stephan Blossfeld , Hendrik Poorter
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摘要: Diversity of species and order arrival can have strong effects on ecosystem functioning community composition, but these two rarely being explicitly combined in experimental setups. We measured the both diversity function composition a grassland field experiment, thus combining biodiversity assembly approaches. studied effect three plant functional groups (PFGs: grasses, legumes non-leguminous forbs) sowing low high seed mixtures (9 or 21 species) aboveground biomass. The experiment was set up different soil types. Differences PFG affected biomass, number composition. As expected, we found higher biomass when before other PFGs, this not continuous over time. did find positive sown (even if it influenced richness as expected). No interactions were between factors. that first may be good method for increasing productivity whilst maintaining central European grasslands, although potential long-lasting needs further study. In addition, mechanisms behind non-continuous priority need to researched, taking weather plant-soil feedbacks into account.
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