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Fallacies underlying the assumption of calcium limitation on the evolution of land snails in Bermuda

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dc.contributor.author Olson, Storrs L. en
dc.contributor.author Hearty, Paul J. en
dc.date.accessioned 2008-11-24T20:51:30Z
dc.date.available 2008-11-24T20:51:30Z
dc.date.issued 2007
dc.identifier.citation Olson, Storrs L. and Hearty, Paul J. 2007. "<a href="https%3A%2F%2Frepository.si.edu%2Fhandle%2F10088%2F6528">Fallacies underlying the assumption of calcium limitation on the evolution of land snails in Bermuda</a>." <em>Veliger</em>. 49 (3):132&ndash;139. en
dc.identifier.issn 0042-3211
dc.identifier.uri http://hdl.handle.net/10088/6528
dc.description.abstract The supposed lack of calcium during glacial periods of red soil development has been cited as the principal factor influencing evolution in land snail shells on Bermuda during the Quaternary. We argue that at no time was there an appreciable deficiency of calcium carbonate on Bermuda because the red soils themselves are largely made up of carbonate and because calcium in plant tissues would have been recycled during all stages of the Quaternary by frequent forest fires. Supposed instances of very localized changes in shell thickness arose through misinterpretation of chronology. Paedomorphic populations of the subgenus Poecilozonites occur only in carbonates of the last interglacial (Marine Isotope Stage 5) and the Holocene, never in glacial red soils as maintained repeatedly by Gould. en
dc.format.extent 385692 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US
dc.relation.ispartof Veliger en
dc.title Fallacies underlying the assumption of calcium limitation on the evolution of land snails in Bermuda en
dc.type Journal Article en
dc.identifier.srbnumber 75128
rft.jtitle Veliger
rft.volume 49
rft.issue 3
rft.spage 132
rft.epage 139
dc.description.SIUnit NMNH en
dc.description.SIUnit NH-Vertebrate Zoology en
dc.citation.spage 132
dc.citation.epage 139


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