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THE ROLE OF CONTAMINANT EXPOSURE AND HABITAT SUITABILITY IN NEST SITE USE AND PRODUCTIVITY OF OSPREYS (PANDION HALIAETUS) BREEDING ON THE DELAWARE RIVER AND BAY

dc.contributor.advisorOttinger, Mary Annen_US
dc.contributor.authorToschik, Pamela Christineen_US
dc.date.accessioned2005-02-02T06:16:33Z
dc.date.available2005-02-02T06:16:33Z
dc.date.issued2004-10-20en_US
dc.identifier.urihttp://hdl.handle.net/1903/1944
dc.description.abstractIn 2002, contaminant exposure, reproduction, and habitat use of ospreys along 3 segments of a 300-km stretch of the Delaware Bay area, and a reference area were evaluated. Fresh eggs were collected and analyzed for contaminants; fate of nests was monitored through fledging. Concentrations of p,p?-DDE and PCBs in eggs collected between the C&D Canal and Trenton resembled elevated levels found in the Chesapeake Bay. Productivity for Inland Bays and southern Delaware Bay was 1.17 and 1.42 young fledged/active nest; north of the C&D Canal productivity averaged 1 fledgling/active nest. An examination of osprey habitat use showed that presence of active nests was associated with water depth and clarity, distance to active osprey nests, and presence of urban land, while hatching success was associated with organic contaminants in eggs. Contaminants continue to be a significant stressor on osprey productivity, particularly in the northern Delaware Bay area.en_US
dc.format.extent1939647 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoen_US
dc.titleTHE ROLE OF CONTAMINANT EXPOSURE AND HABITAT SUITABILITY IN NEST SITE USE AND PRODUCTIVITY OF OSPREYS (PANDION HALIAETUS) BREEDING ON THE DELAWARE RIVER AND BAYen_US
dc.typeThesisen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.contributor.departmentMarine-Estuarine-Environmental Sciencesen_US
dc.subject.pqcontrolledBiology, Ecologyen_US


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