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dc.contributor.authorD. Wylie, Glenn
dc.contributor.authorL. Casazza, Michael
dc.contributor.authorGregory, Chris
dc.contributor.authorJ. Halstead, Brian
dc.date.accessioned2017-05-03T14:34:37Z
dc.date.available2017-05-03T14:34:37Z
dc.date.issued2010
dc.date.modified2011-07-27T06:31:33Z
dc.identifier.issn00221511
dc.identifier.doi10.1670/08-337.1
dc.identifier.urihttp://hdl.handle.net/10072/38064
dc.description.abstractThe Giant Gartersnake (Thamnophis gigas) is restricted to wetlands of the Central Valley of California. Because of wetland loss in this region, the Giant Gartersnake is both federally and state listed as threatened. We conducted mark-recapture studies of four populations of the Giant Gartersnake in the Sacramento Valley (northern Central Valley), California, to obtain baseline data on abundance and density to assist in recovery planning for this species. We sampled habitats that ranged from natural, unmanaged marsh to constructed managed marshes and habitats associated with rice agriculture. Giant Gartersnake density in a natural wetland (1.90 individuals/ha) was an order of magnitude greater than in a managed wetland subject to active season drying (0.17 individuals/ha). Sex ratios at all sites were not different from 1 1, and females were longer and heavier than males. Females had greater body condition than males, and individuals at the least disturbed sites had significantly greater body condition than individuals at the managed wetland. The few remaining natural wetlands in the Central Valley are important, productive habitat for the Giant Gartersnake, and should be conserved and protected. Wetlands constructed and restored for the Giant Gartersnake should be modeled after the permanent, shallow wetlands representative of historic Giant Gartersnake habitat.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.format.extent328856 bytes
dc.format.mimetypeapplication/pdf
dc.languageEnglish
dc.language.isoeng
dc.publisherSociety for the Study of Amphibians and Reptiles
dc.publisher.placeUnited States
dc.relation.ispartofstudentpublicationN
dc.relation.ispartofpagefrom94
dc.relation.ispartofpageto103
dc.relation.ispartofissue1
dc.relation.ispartofjournalJournal of Herpetology
dc.relation.ispartofvolume44
dc.rights.retentionY
dc.subject.fieldofresearchPopulation Ecology
dc.subject.fieldofresearchEcological Applications
dc.subject.fieldofresearchZoology
dc.subject.fieldofresearchcode060207
dc.subject.fieldofresearchcode0501
dc.subject.fieldofresearchcode0608
dc.titleAbundance and Sexual Size Dimorphism of the Giant Gartersnake (Thamnophis gigas) in the Sacramento Valley of California
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.rights.copyright© 2010 SSAR. The attached file is reproduced here in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
gro.date.issued2010
gro.hasfulltextFull Text
gro.griffith.authorGregory, Chris


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