Productivity is a poor predictor of plant species richness.

Published

Journal Article

For more than 30 years, the relationship between net primary productivity and species richness has generated intense debate in ecology about the processes regulating local diversity. The original view, which is still widely accepted, holds that the relationship is hump-shaped, with richness first rising and then declining with increasing productivity. Although recent meta-analyses questioned the generality of hump-shaped patterns, these syntheses have been criticized for failing to account for methodological differences among studies. We addressed such concerns by conducting standardized sampling in 48 herbaceous-dominated plant communities on five continents. We found no clear relationship between productivity and fine-scale (meters(-2)) richness within sites, within regions, or across the globe. Ecologists should focus on fresh, mechanistic approaches to understanding the multivariate links between productivity and richness.

Full Text

Duke Authors

Cited Authors

  • Adler, PB; Seabloom, EW; Borer, ET; Hillebrand, H; Hautier, Y; Hector, A; Harpole, WS; O'Halloran, LR; Grace, JB; Anderson, TM; Bakker, JD; Biederman, LA; Brown, CS; Buckley, YM; Calabrese, LB; Chu, C-J; Cleland, EE; Collins, SL; Cottingham, KL; Crawley, MJ; Damschen, EI; Davies, KF; DeCrappeo, NM; Fay, PA; Firn, J; Frater, P; Gasarch, EI; Gruner, DS; Hagenah, N; Hille Ris Lambers, J; Humphries, H; Jin, VL; Kay, AD; Kirkman, KP; Klein, JA; Knops, JMH; La Pierre, KJ; Lambrinos, JG; Li, W; MacDougall, AS; McCulley, RL; Melbourne, BA; Mitchell, CE; Moore, JL; Morgan, JW; Mortensen, B; Orrock, JL; Prober, SM; Pyke, DA; Risch, AC; Schuetz, M; Smith, MD; Stevens, CJ; Sullivan, LL; Wang, G; Wragg, PD; Wright, JP; Yang, LH

Published Date

  • September 23, 2011

Published In

Volume / Issue

  • 333 / 6050

Start / End Page

  • 1750 - 1753

PubMed ID

  • 21940895

Pubmed Central ID

  • 21940895

Electronic International Standard Serial Number (EISSN)

  • 1095-9203

Digital Object Identifier (DOI)

  • 10.1126/science.1204498

Language

  • eng

Conference Location

  • United States