Bioaccumulation of lead and cadmium in the Louisiana Heron (Hydranassa tricolor) and the Cattle Egret (Bubulcus ibis).

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dc.acquisition-srcen_US
dc.call-noAcc# 1378en_US
dc.contract-noen_US
dc.contributor.authorHacker, C.S.en_US
dc.contributor.authorCheney, M.A.en_US
dc.contributor.authorSchroder, G.D.en_US
dc.contributor.otherEcotoxicology and Environmental Safetyen_US
dc.date.accessioned2010-02-15T16:49:52Z
dc.date.available2010-02-15T16:49:52Z
dc.date.issued1981en_US
dc.degreeen_US
dc.descriptionp. 211-224.en_US
dc.description-otheren_US
dc.description.abstractLead and cadmium concentrations in the tissues and stomach contents of several age classes of Louisiana herons (Hydranassa tricolor) and cattle egrets (Bubulcus ibis) from the Galveston Bay region of Texas were measured, and levels of exposure and the rates of accumulation by these species were compared. Statistical analyses showed no differences in the rates and patterns of accumulation of these metals between these species; however, tissue and age class were both significant variables. Lead concentrations were highest in the bone of adult birds, while cadmium was highest in the adult kidney. Although these birds feed in different habitats, analyses of metal content in their food items showed similar rates of exposure. We note an important distinction between biomagnification and ontogenetic accumulation in studies which seek toi estimate the importance of trophic position on risk of exposure to heavy metals.en_US
dc.description.urihttp://gbic.tamug.edu/request.htmen_US
dc.geo-codeGalveston Bayen_US
dc.historyen_US
dc.identifier.urihttp://hdl.handle.net/1969.3/19125
dc.latitudeen_US
dc.locationGBIC Collection file roomen_US
dc.longitudeen_US
dc.notesen_US
dc.placeen_US
dc.publisheren_US
dc.relation.ispartofseries1378.00en_US
dc.relation.urien_US
dc.scaleen_US
dc.seriesen_US
dc.subjectaquatic birdsen_US
dc.subjectLouisiana heronen_US
dc.subjectHydranassa tricoloren_US
dc.subjectcattle egreten_US
dc.subjectBubulcus ibisen_US
dc.subjectbioaccumulationen_US
dc.subjectchemical pollutionen_US
dc.subjectleaden_US
dc.subjectcadmiumen_US
dc.subjectmetalsen_US
dc.subjectstomach contenten_US
dc.subjecttissuesen_US
dc.titleBioaccumulation of lead and cadmium in the Louisiana Heron (Hydranassa tricolor) and the Cattle Egret (Bubulcus ibis).en_US
dc.typeArticleen_US
dc.universityen_US
dc.vol-issue5(2)en_US

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