Partitioning changes in ecosystem productivity by effects of species interactions in biodiversity experiments.

ABSTRACT: Species interactions affect ecosystem productivity. Positive interactions (resource partitioning and facilitation) increase productivity while negative interactions (species interference) decrease productivity relative to the null expectations defined by monoculture yields. Effects of competitive interactions (resource competition) can be either positive or negative. Distinguishing effects of species interactions is therefore difficult, if not impossible, with current biodiversity experiments involving mixtures and full density monocultures. To partition changes in ecosystem productivity by effects of species interactions, we modify null expectations with competitive growth responses, i.e., proportional changes in individual size (biomass or volume) expected in mixture based on species dif

SUBMITTER: Tao J 

PROVIDER: S-EPMC12510681 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature