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dc.contributor.authorCáceres, Carla E.en_US
dc.contributor.authorHall, Spencer R.en_US
dc.contributor.authorDuffy, Meghan A.en_US
dc.contributor.authorTessier, Alan J.en_US
dc.contributor.authorHelmle, J. C.en_US
dc.contributor.authorMacIntyre, Sallyen_US
dc.date.accessioned2011-01-28T17:28:02Z
dc.date.available2011-01-28T17:28:02Z
dc.date.issued2006-06
dc.identifier.citationCáceres, C. E., S. R. Hall, M. A. Duffy, A. J. Tessier, C. Helmle, and S. MacIntyre. 2006. Physical Structure of Lakes Constrains Epidemics In Daphnia Populations. Ecology 87:1438–1444.en_US
dc.identifier.issn0012-9658
dc.identifier.urihttp://hdl.handle.net/1853/36747
dc.descriptionDOI: 10.1890/0012-9658(2006)87[1438:PSOLCE]2.0.CO;2en_US
dc.description© Ecological Society of Americaen_US
dc.description.abstractParasites are integral parts of most ecosystems, yet attention has only recently focused on how community structure and abiotic factors impact host–parasite interactions. In lakes, both factors are influenced by habitat morphology. To investigate the role of habitat structure in mediating parasitism in the plankton, we quantified timing and prevalence of a common microparasite (Metschnikowia bicuspidata) in its host, Daphnia dentifera, in 18 lakes that vary in basin size and shape. Over three years, we found substantial spatial and temporal variation in the severity of epidemics. Although infection rates reached as high as 50% in some lakes, they did not occur in most lakes in most years. Host density, often considered to be a key determinant of disease spread, did not explain a significant amount of variation in the occurrence of epidemics. Furthermore, host resistance does not fully explain this parasite's distribution, since we easily infected hosts in the laboratory. Rather, basin shape predicted epidemics well; epidemics occurred only in lakes with steep-sided basins. In these lakes, the magnitude of epidemics varied with year. We suggest that biological (predation) and physical (turbulence) effects of basin shape interact with annual weather patterns to determine the regional distribution of this parasite.en_US
dc.language.isoen_USen_US
dc.publisherGeorgia Institute of Technologyen_US
dc.subjectDaphnia dentiferaen_US
dc.subjectDisease epidemicsen_US
dc.subjectHost-parasite interactionsen_US
dc.subjectIndirect effectsen_US
dc.subjectLake basin shapeen_US
dc.subjectMetschnikowia bicuspidataen_US
dc.subjectMorphometryen_US
dc.subjectTurbulenceen_US
dc.subjectWeather patternsen_US
dc.subjectZooplanktonen_US
dc.titlePhysical Structure of Lakes Constrains Epidemics In Daphnia Populationsen_US
dc.typeArticleen_US
dc.contributor.corporatenameUniversity of Illinois at Urbana-Champaign. School of Integrative Biologyen_US
dc.contributor.corporatenameMichigan State University. Dept. of Zoologyen_US
dc.contributor.corporatenameW.K. Kellogg Biological Stationen_US
dc.contributor.corporatenameNational Science Foundation (U.S.). Division of Environmental Biologyen_US
dc.contributor.corporatenameUniversity of California, Santa Barbara. Marine Science Instituteen_US
dc.contributor.corporatenameUniversity of California, Santa Barbara. Dept. of Ecology, Evolution and Marine Biologyen_US
dc.publisher.originalEcological Society of Americaen_US
dc.identifier.doi10.1890/0012-9658(2006)87[1438:PSOLCE]2.0.CO;2


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