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Multivariate complexity analysis of 3D surface form and function of centric diatoms at the Eocene–Oligocene transition

dc.contributor.authorPappas, Janice
dc.date.accessioned2016-01-22T21:31:59Z
dc.date.available2016-01-22T21:31:59Z
dc.date.issued2016-01-01
dc.identifier.urihttps://hdl.handle.net/2027.42/116860
dc.description.abstractComplexity is important in the course of evolution, but consensus of what complexity analysis entails is elusive. In this study, multivariate complexity is measured and analyzed in terms of magnitude of change and the trends behind those changes. Multivariate morphological and functional complexities were analyzed using 3D surface models of centric diatom genera from the Eocene to Oligocene, a transitional time when temperatures cooled, sea levels rose, and glaciation increased. Diatoms were chosen for study because of their importance in biostratigraphy, biogeochemical cycling, productivity, food web dynamics, and sensitivity to environmental conditions. Probabilistic analysis using aMarkov chain indicated an increase in total complexity across the Eocene–Oligocene transition (EOT). Causal inference via structural equation modeling indicated weakly driven functional and morphological complexity trends over the EOT.Morphological and functional complexity trends differed with respect to predation resistance as responses to ecological complexity as environmental and climate change occurred across the EOT. Macroevolutionary patterns of morphological and functional complexity with respect to ecological complexity did not necessarily coincide over time.en_US
dc.language.isoen_USen_US
dc.subjectdiatoms, 3D morphology, Jacobian, morphological complexity, functional complexity, predation resistance, macroevolutionen_US
dc.titleMultivariate complexity analysis of 3D surface form and function of centric diatoms at the Eocene–Oligocene transitionen_US
dc.typeArticleen_US
dc.subject.hlbsecondlevelScience (General)
dc.subject.hlbsecondlevelEcology and Evolutionary Biology
dc.subject.hlbtoplevelScience
dc.description.peerreviewedPeer Revieweden_US
dc.contributor.affiliationumUniversity of Michiganen_US
dc.contributor.affiliationumcampusAnn Arboren_US
dc.description.bitstreamurlhttp://deepblue.lib.umich.edu/bitstream/2027.42/116860/1/2016JLP-MARMIC.pdf
dc.identifier.sourceMarine Micropaleontologyen_US
dc.description.filedescriptionDescription of 2016JLP-MARMIC.pdf : main article
dc.owningcollnameZoology, University of Michigan Museum of (UMMZ)


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