Quantifying the scale dependence of primary productivity-species-richness relationships.

ABSTRACT: Vegetation productivity is expected to correlate with species richness, but there is debate about whether the relationship form (non-existent, negative, positive, unimodal) of productivity-species-richness relationships (PSRR) depends on the spatial extent and productivity measure used. Previous assessments employed coarse distance categories to examine scale dependence and did not consider scale dependence for alternative productivity measures. I used spatially varying coefficient models to precisely estimate the distances over which PSRRs change and to map spatial patterns of form for breeding birds across the conterminous United States. I created separate models for three measures summarizing intra-annual estimates of gross primary productivity: sum, minimum, and seasonality (coefficien

SUBMITTER: Tavernia BG 

PROVIDER: S-EPMC12593721 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature