Which study supported diversity-stability hypothesis through drought resistance?
Tilman and Downing used long-term grassland data to show that more diverse plant communities were more resistant to drought and recovered more strongly. Their result connected species richness with stability of community biomass under climatic stress. Biodiversity–function hypotheses differ in how they assign ecological importance among species. Complementarity emphasizes distinct contributions, redundancy emphasizes overlap and compensation, rivet theory emphasizes cumulative weakening, keystone theory emphasizes particular influential species, and idiosyncrasy emphasizes context dependence.
Ref: NCERT Biology Class 12, Ch. 15 Biodiversity and Conservation
