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dc.contributor.authorChen, Bingzhangzh_CN
dc.contributor.authorLandry, Michael R.zh_CN
dc.contributor.authorHuang, Bangqinzh_CN
dc.contributor.authorLiu, Hongbinzh_CN
dc.contributor.author陈炳章zh_CN
dc.date.accessioned2013-12-12T02:08:48Z
dc.date.available2013-12-12T02:08:48Z
dc.date.issued2012-03zh_CN
dc.identifier.citationLimnology and Oceanography, 2012,57(2):519-526zh_CN
dc.identifier.issn0024-3590zh_CN
dc.identifier.otherWOS:000302613200011zh_CN
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/60835
dc.identifier.urihttp://dx.doi.org/10.4319/lo.2012.57.2.0519
dc.descriptionNational Science Foundation of China [41106119, 40730846, 40925018]; Xiamen University [2011121007]; U.S. National Science Foundation [0826626, 1026607]; University Grants Council of Hong Kong [AoE/P-04/04]; Research Grant Council [661610, 661809]zh_CN
dc.description.abstractWe evaluated a hypothesis derived from the metabolic theory of ecology (MTE) that the ratio of microzooplankton herbivory (m) to phytoplankton growth (mu) will arise in a warming ocean because of the different temperature dependencies of autotrophic and heterotrophic organisms. Using community-level growth and grazing data from dilution experiments, generalized additive models (GAMs) were constructed to describe the effects of temperature and chlorophyll on m: mu. At low chlorophyll levels, m: mu decreases with increasing temperature, whereas at high chlorophyll levels, m: mu increases initially with temperature before reaching a peak and then declines. These complex responses of m: mu result from mixed effects of temperature and chlorophyll on microzooplankton biomass (B-z), biomass-specific microzooplankton grazing rate (m: B-z), and phytoplankton growth rate (mu). B-z decreases with rising temperature and increases with rising chlorophyll. m: B-z increases with temperature and decreases with chlorophyll. Nutrient-enriched growth rate of phytoplankton (mu(n)) and mu increase with increasing temperature and chlorophyll. Holding chlorophyll constant, the calculated activation energies of m: B-z and mu(n) are 0.67 +/- 0.05 and 0.36 +/- 0.05 eV, respectively, both consistent with previous MTE estimates for heterotrophs and autotrophs. Our study indicates that warming may enhance phytoplankton losses to microzooplankton herbivory in eutrophic but not in oligotrophic waters. The GAM analysis also provides important insights into underlying system relationships and reasons why community-level responses in natural systems may depart from theory based on laboratory data and individual species.zh_CN
dc.language.isoen_USzh_CN
dc.source.urihttp://dx.doi.org/10.4319/lo.2012.57.2.0519zh_CN
dc.subjectCENTRAL EQUATORIAL PACIFICzh_CN
dc.subjectGROWTH-RATEzh_CN
dc.subjectCELL-SIZEzh_CN
dc.subjectMETABOLIC THEORYzh_CN
dc.subjectBODY-SIZEzh_CN
dc.subjectTEMPERATUREzh_CN
dc.subjectCHLOROPHYLLzh_CN
dc.subjectZOOPLANKTONzh_CN
dc.subjectTRENDSzh_CN
dc.subjectECOLOGYzh_CN
dc.titleDoes warming enhance the effect of microzooplankton grazing on marine phytoplankton in the ocean?zh_CN
dc.typeArticlezh_CN


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