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dc.contributor.advisorCobb, George P.
dc.contributor.authorNewberger, Derek
dc.contributor.otherBaylor University.en_US
dc.contributor.otherAcharya, Abhilasha, 1988-en_US
dc.contributor.otherMinistry of Atmosphere and Energyen_US
dc.contributor.otherConservation Division of Belizeen_US
dc.contributor.otherCherie Chenot-Roseen_US
dc.contributor.otherVince Roseen_US
dc.contributor.otherRainwater, Thomas R.en_US
dc.contributor.otherFrank J. Mazzottieen_US
dc.date.accessioned2014-06-02T18:38:49Z
dc.date.available2014-06-02T18:38:49Z
dc.date.copyright2014
dc.date.issued2014-06-02
dc.identifier.urihttp://hdl.handle.net/2104/8998
dc.description.abstractContamination of aquatic environments is a global concern that poses risks to wildlife and human health. Due to their high trophic status, broad diet, long life span, and occurrence in a variety of aquatic habitats, crocodilians are susceptible to exposure and accumulation of numerous persistent environmental contaminants, including metals. Exposure to these metals may have potential health hazards and have a more pronounced effect on populations already subject to other stressors (e.g., habitat loss, deliberate killing). Previous studies have documented transition metals in caudal (tail) scutes of crocodiles from remote areas of mainland Belize; however, no such data are available for crocodiles living on the country’s offshore islands (cays). In this study, we examined transition metal concentrations in caudal scutes from American crocodiles (Crocodylus acutus) sampled from various localities on Ambergris Cay, Belize. In addition, a smaller number of C. acutus scutes from Costa Rica were also examined for comparative purposes. Sixteen metals were detected in scutes: Pb, As, Cu, Ag, Be, Cd, Al, Cr, Ni, Co, Mo, Sb, Se, Tl, Sn, and Zn, with Al, Zn, Cu, and Sn exhibiting the highest concentrations. Metal concentrations differed by sex, body size, site, and proximity to putative contaminant sources. Juvenile crocodiles generally contained the highest metal concentrations, and for many metals concentrations decreased with increasing body size.en_US
dc.language.isoen_USen_US
dc.rightsBaylor University projects are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. Contact libraryquestions@baylor.edu for inquiries about permission.en_US
dc.subjectAmerican crocodile.en_US
dc.subjectBelize.en_US
dc.subjectAccumulation.en_US
dc.subjectTransition Metals.en_US
dc.subjectCaudal scutes.en_US
dc.subjectCentral America.en_US
dc.subjectCosta Rica.en_US
dc.subjectCrocodylus acutus.en_US
dc.subjectNon-lethal sampling.en_US
dc.subjectPollution.en_US
dc.subjectReptile.en_US
dc.titleTransition Metal Accumulation in Caudal Scutes of American Crocodiles (Crocodylus acutus) from Belizeen_US
dc.typeThesisen_US
dc.rights.accessrightsWorldwide accessen_US
dc.contributor.departmentBiology.en_US
dc.contributor.schoolsHonors College.en_US


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