No evidence for an interactive effect of herbivore and  predator diversity on herbivore abundance in the  experimental mesocosms of Douglass et al. (2008).
Douglass et al. (Ecol. Lett., 11, 2008, 1) concluded that grazer diversity and predator diversity have an interactive effect on herbivore abundance in experimental marine mesocosms. Re-analysis of their data fails to support this conclusion, which was apparently based on a statistical miscalculation.
Murtaugh
Paul A
PA
Department of Statistics, Oregon State University, Corvallis, OR 97331, USA. murtaugh@science.oregonstate.edu
D000818:Animals; D044822:Biodiversity; D005247:Feeding Behavior; D020387:Food Chain; D011156:Population Density; D011157:Population Dynamics; D011235:Predatory Behavior