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dc.contributor.authorOberfoell, Catherine E.C.
dc.date.accessioned2006-03-15T17:09:07Z
dc.date.available2006-03-15T17:09:07Z
dc.date.issued1997-05
dc.identifier.other1997 .O2
dc.identifier.urihttp://hdl.handle.net/2092/338
dc.description[iv], 36 leaves. Advisor: James L. Christiansen.en
dc.description.abstractHistorically, the tetraploid and diploid species pair of treefrogs, "Hyla versicolor" and "Hyla chrysoscelis" have been mapped collectively in Iowa because no distinguishing macroscopic morphological characteristics useful in recognizing the two species had been found. The present study reports identification and separation of the species by counts of stained nucleoli and measurement of scanning electron micrographs of toepad projections. The resulting distribution correlates with spot checks of call analysis. Subsequent morphometric data confirm that the two species represent two distinct populations in Iowa. "H. chrysoscelis" is distributed sporadically through the southwestern half of Iowa while "H. versicolor" is limited to the southeastern half of the state. This study suggests a decline of these species in extreme northern Iowa.en
dc.format.extent5916507 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoen_US
dc.publisherDrake Universityen
dc.relation.ispartofseriesDrake University Theses, The College of Arts and Sciences;1997
dc.subjectHyla versicolor.en
dc.subjectHyla chrysoscelis.en
dc.subjectFrogs--Iowa.en
dc.titleDistinguishing the Treefrogs "Hyla versicolor" and "Hyla chrysoscelis" in Iowa, and Their Distributionsen
dc.typeThesisen


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