Spatial scale affects seed predation and dispersal in contrasting anthropogenic landscapes

摘要

Seed predalion and dispersal can have strong, albeit opposing effects on plant communities and their extent depends on interactions between seeds and their vectors (abiotic factors or different animal taxa). We assume that vectors, due to their specific requirements, act at different spatial scales and seed-vector interactions might differ greatly between landscapes. So far, it remains largely unclear, how the interaction between seeds and their vectors affects the degree of seed predation and dispersal in novel anthropogenic landscapes. We expect changes in patterns either at the landscape scale (urban vs rural areas), habitat scale (habitat heterogeneity) or microhabitat scale (vegetation variability).