The distribution, spread and potential impacts of the invasive predatory snail Oxychilus alliarius on tropical islands

Simple item page
dc.contributor.authorCurry, Patrick
dc.date.accessioned2016-02-19T23:15:44Z
dc.date.available2016-02-19T23:15:44Z
dc.date.issued2012-12
dc.descriptionM.S. University of Hawaii at Manoa 2012.
dc.descriptionIncludes bibliographical references.
dc.description.abstractIsland land snail species, have suffered major extinctions, partly resulting from impacts of alien species. Oxychilus alliarius is a widely introduced predatory European snail. This thesis includes two studies: 1) assessing its spread and impacts on native snails on Kaala, Oahu's highest mountain; 2) modeling the environmental factors that determine its distribution in Hawaii, and applying those models to predict its potential tropical/subtropical island distribution globally. On Kaala O. alliarius is expanding its distribution at ~113 m per year. Abundances of native snail species on Kaala are correlated to that of O. alliarius in complex ways. Of 36 models developed, the four best were good predictors of O. alliarius distribution in Hawaii, with mean annual temperature being especially important. Globally, the models predict that some islands have areas of suitable habitat, mostly at higher elevations, and are therefore susceptible to invasion by O. alliarius, while others have no suitable habitat.
dc.identifier.urihttp://hdl.handle.net/10125/100899
dc.language.isoeng
dc.publisher[Honolulu] : [University of Hawaii at Manoa], [December 2012]
dc.relationTheses for the degree of Master of Science (University of Hawaii at Manoa). Zoology.
dc.subjectOxychilus alliarius
dc.subjectsnail
dc.subjectspecies distribution modeling
dc.subjectKaala
dc.titleThe distribution, spread and potential impacts of the invasive predatory snail Oxychilus alliarius on tropical islands
dc.typeThesis
dc.type.dcmiText

Files

Original bundle
Now showing 1 - 2 of 2
No Thumbnail Available
Name:
Curry_Patrick_r.pdf
Size:
2.03 MB
Format:
Adobe Portable Document Format
Description:
Version for non-UH users. Copying/Printing is not permitted
Download
No Thumbnail Available
Name:
Curry_Patrick_uh.pdf
Size:
2.1 MB
Format:
Adobe Portable Document Format
Description:
Version for UH users
Download

Collections

M.S. - Zoology