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Measuring the exposure of Songbird Nestlings to Neonicotinoids in Natural and Agricultural Nest Sites

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dc.contributor.advisorStutchbury, Bridget J.
dc.creatorChaudhry, Tehmeena
dc.date.accessioned2019-07-02T16:12:10Z
dc.date.available2019-07-02T16:12:10Z
dc.date.copyright2019-02-15
dc.date.issued2019-07-02
dc.date.updated2019-07-02T16:12:10Z
dc.degree.disciplineBiology
dc.degree.levelMaster's
dc.degree.nameMSc - Master of Science
dc.description.abstractNeonicotinoid insecticides such as imidacloprid (IMI) have been under scrutiny for their damage on non-target invertebrates. However, recent literature suggests that grassland birds are experiencing population declines concurrently with increased IMI use. Field research was conducted to test the presence of IMI in Savannah Sparrow (SAVS) nestlings and their insect food supply at agricultural and non-agricultural nests. Using urine samples from Tree Swallows (TRES) dosed with IMI, an HP LC-MS was used to determine the concentration of IMI its metabolite 6-chloronicotinic acid (6-CN) at 0, 3 and 6 hours after exposure. Though no IMI or 6-CN residues were found in SAVS or their food, dosed TRES suggest birds can take upwards of 6 hours to excrete the parent compound and this was proportionate to the original dose. This will be a novel approach to neonicotinoid research on grassland birds and will serve as a guide to future research in this developing field.
dc.identifier.urihttp://hdl.handle.net/10315/36260
dc.language.isoen
dc.rightsAuthor owns copyright, except where explicitly noted. Please contact the author directly with licensing requests.
dc.subjectEnvironmental science
dc.subject.keywordsNeonicotinoids
dc.subject.keywordsAgriculture
dc.subject.keywordsOrnithology
dc.subject.keywordsSongbirds
dc.subject.keywordsUrinalysis
dc.subject.keywordsImidacloprid
dc.subject.keywordsExposure
dc.subject.keywordsDosing
dc.titleMeasuring the exposure of Songbird Nestlings to Neonicotinoids in Natural and Agricultural Nest Sites
dc.typeElectronic Thesis or Dissertation

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