Diversity-function debate

The diversity-function debate concerns whether, and how much, biodiversity actually shapes how an ecosystem functions. It sets functional diversity, species composition, and species richness on one side against the biogeochemical processes of an ecosystem on the other, asking how strongly the first group influences the second and whether that influence is even significant enough to matter. The debate was sharpened by research such as the Tilman studies, which suggested that the number of functionally distinct roles present in an ecosystem may predict ecosystem processes more strongly than the raw number of species alone. That claim challenged earlier assumptions and touched off disagreement over experimental design, interpretation of results, and whether the correlations observed between diversity and productivity reflect a genuine ecological effect or an artifact of how the experiments themselves were built. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/