Effects of plant diversity on productivity strengthen over time due to trait-dependent shifts in species overyielding.

ABSTRACT: Plant diversity effects on community productivity often increase over time. Whether the strengthening of diversity effects is caused by temporal shifts in species-level overyielding (i.e., higher species-level productivity in diverse communities compared with monocultures) remains unclear. Here, using data from 65 grassland and forest biodiversity experiments, we show that the temporal strength of diversity effects at the community scale is underpinned by temporal changes in the species that yield. These temporal trends of species-level overyielding are shaped by plant ecological strategies, which can be quantitatively delimited by functional traits. In grasslands, the temporal strengthening of biodiversity effects on community productivity was associated with increasing biomass overyieldi

SUBMITTER: Zheng L 

PROVIDER: S-EPMC10920907 | biostudies-literature | 2024 Mar

REPOSITORIES: biostudies-literature