title: Marine ecology: different measures of biodiversity.
abstract: In their analysis of global trends of diversity in marine plankton, Irigoien et al. find that taxonomic diversity of zooplankton (consumer) is a unimodal function of community biomass that is unrelated to phytoplankton (producer) diversity. Their results are unexpected because in terrestrial organisms primary-producer diversity is a good predictor of consumer diversity. I contend that this apparent uncoupling of producer and consumer diversity in marine plankton is likely to be an artefact due to the authors' use of different measures of diversity for producers and for consumers.
authors.affiliation: Marine Microbial Ecology Group, Laboratoire de Océanographie de Villefranche, Université de Paris VI et CNRS UMR 7093 Station Zoologique, BP 28, 06230 Villefranche-sur-Mer, France. dolanobs-vlfr.fr
authors.forename: John R
authors.initials: JR
authors.lastname: Dolan
mesh_terms: D000818:Animals; D044822:Biodiversity; D018533:Biomass; D002965:Classification; D004463:Ecology; D020387:Food Chain; D008386:Marine Biology; D009792:Oceans and Seas; D010839:Phytoplankton / Q000145:classification / Q000502:physiology*; D011156:Population Density; D015048:Zooplankton / Q000145:classification / Q000502:physiology*