Adaptive Evolution of Phytoplankton Cell Size

dc.contributor.author Jiang, Lin en_US
dc.contributor.author Schofield, Oscar M. E. en_US
dc.contributor.author Falkowski, Paul G. en_US
dc.contributor.corporatename Rutgers University. Institute of Marine and Coastal Sciences en_US
dc.contributor.corporatename Rutgers University. Dept. of Geological Sciences en_US
dc.date.accessioned 2010-08-11T19:55:38Z
dc.date.available 2010-08-11T19:55:38Z
dc.date.issued 2005-10
dc.description © 2005 The University of Chicago en_US
dc.description DOI: 10.1086/444442
dc.description.abstract We present a simple nutrient‐phytoplankton‐zooplankton (NPZ) model that incorporates adaptive evolution and allometric relations to examine the patterns and consequences of adaptive changes in plankton body size. Assuming stable environmental conditions, the model makes the following predictions. First, phytoplankton should evolve toward small sizes typical of picoplankton. Second, in the absence of grazers, nutrient concentration is minimized as phytoplankton reach their fitness maximum. Third, increasing nutrient flux tends to increase phytoplankton cell size in the presence of phytoplankton‐zooplankton coevolution but has no effect in the absence of zooplankton. Fourth, phytoplankton reach their fitness maximum in the absence of grazers, and the evolutionary nutrient‐phytoplankton system has a stable equilibrium. In contrast, phytoplankton may approach their fitness minimum in the evolutionary NPZ system where phytoplankton and zooplankton are allowed to coevolve, which may result in oscillatory (unstable) dynamics of the evolutionary NPZ system, compared with the otherwise stable nonevolutionary NPZ system. These results suggest that evolutionary interactions between phytoplankton and zooplankton may have contributed to observed changes in phytoplankton sizes and associated biogeochemical cycles over geological time scales. en_US
dc.identifier.citation Lin Jiang, Oscar M. E. Schofield and Paul G. Falkowski, "Adaptive Evolution of Phytoplankton Cell Size," American Naturalist, Vol. 166 (October 2005) 496–505 en_US
dc.identifier.doi 10.1086/444442
dc.identifier.issn 0003-0147
dc.identifier.uri http://hdl.handle.net/1853/34395
dc.language.iso en_US en_US
dc.publisher Georgia Institute of Technology en_US
dc.publisher.original University of Chicago Press
dc.subject Adaptive evolution en_US
dc.subject Body size en_US
dc.subject Nutrient‐phytoplankton‐zooplankton (NPZ) model en_US
dc.subject Phytoplankton en_US
dc.subject Zooplankton en_US
dc.title Adaptive Evolution of Phytoplankton Cell Size en_US
dc.type Text
dc.type.genre Article
dspace.entity.type Publication
local.contributor.author Jiang, Lin
local.contributor.corporatename College of Sciences
local.contributor.corporatename School of Biological Sciences
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relation.isOrgUnitOfPublication 85042be6-2d68-4e07-b384-e1f908fae48a
relation.isOrgUnitOfPublication c8b3bd08-9989-40d3-afe3-e0ad8d5c72b5
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