Extrinsic and intrinsic controls of zooplankton diversity in lakes. Export

@article{citeulike:1112056, abstract = {Pelagic crustacean zooplankton were collected from 336 Norwegian lakes covering a wide range of latitude, altitude, lake area, mean depth, production (as chlorophyll a), and fish community structure. Mean zooplankton species richness during the ice-free season was generally low at high latitudes and altitudes. Further, lower species richness was recorded in western lakes, possibly reflecting constraints on migration and dispersal. However, despite obvious spatial limitations, geographic boundaries were only weak predictors of mean zooplankton richness. Similarly, lake surface area did not contribute positively to mean richness such as seen in other ecosystem surveys. Rather, intrinsic factors such as primary production and fish community (planktivore) structure were identified by regression analysis as the major predictors of zooplankton diversity, while a positive correlation was observed between species richness and total zooplankton biomass. However, in spite of a large number of variables included in this study, the predictive power of multiple regression models was modest (<50\% variance explained), pointing to a major role for within-lake properties, as yet unidentified intrinsic forces, stochasticity, or dispersal as constraints on zooplankton diversity in these lakes.}, address = {University of Oslo, Department of Biology, Norway. dag.hessen@bio.uio.no}, author = {Hessen, D. O. and Faafeng, B. A. and Smith, V. H. and Bakkestuen, V. and Walseng, B.}, citeulike-article-id = {1112056}, citeulike-linkout-0 = {http://view.ncbi.nlm.nih.gov/pubmed/16637368}, citeulike-linkout-1 = {http://www.hubmed.org/display.cgi?uids=16637368}, issn = {0012-9658}, journal = {Ecology}, keywords = {diversity, ecology, for\_mana}, month = {February}, number = {2}, pages = {433--443}, posted-at = {2007-02-19 00:43:47}, priority = {2}, title = {Extrinsic and intrinsic controls of zooplankton diversity in lakes.}, url = {http://view.ncbi.nlm.nih.gov/pubmed/16637368}, volume = {87}, year = {2006} }

TY - JOUR ID - citeulike:1112056 L3 - citeulike-article-id:1112056 N2 - Pelagic crustacean zooplankton were collected from 336 Norwegian lakes covering a wide range of latitude, altitude, lake area, mean depth, production (as chlorophyll a), and fish community structure. Mean zooplankton species richness during the ice-free season was generally low at high latitudes and altitudes. Further, lower species richness was recorded in western lakes, possibly reflecting constraints on migration and dispersal. However, despite obvious spatial limitations, geographic boundaries were only weak predictors of mean zooplankton richness. Similarly, lake surface area did not contribute positively to mean richness such as seen in other ecosystem surveys. Rather, intrinsic factors such as primary production and fish community (planktivore) structure were identified by regression analysis as the major predictors of zooplankton diversity, while a positive correlation was observed between species richness and total zooplankton biomass. However, in spite of a large number of variables included in this study, the predictive power of multiple regression models was modest (<50% variance explained), pointing to a major role for within-lake properties, as yet unidentified intrinsic forces, stochasticity, or dispersal as constraints on zooplankton diversity in these lakes. IS - 2 JF - Ecology SN - 0012-9658 AD - University of Oslo, Department of Biology, Norway. dag.hessen@bio.uio.no EP - 443 TI - Extrinsic and intrinsic controls of zooplankton diversity in lakes. VL - 87 SP - 433 KW - diversity KW - ecology KW - for_mana AU - Hessen, DO AU - Faafeng, BA AU - Smith, VH AU - Bakkestuen, V AU - Walseng, B PY - 2006/02// UR - http://view.ncbi.nlm.nih.gov/pubmed/16637368 ER -