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Trace metal concentrations in seven Pterodroma species


Philpot, S, Trace metal concentrations in seven Pterodroma species (2017) [Masters Research]


Gadfly petrels (Pterodroma spp.) are one of the most threatened and poorly studied seabird groups, and as apex predators, are likely exposed to chemical pollutants. We quantified trace elements in breast feathers of seven petrel species which breed in the southern hemisphere, to quantify current concentrations and test for an effect of age class. Selenium (Se) concentrations were significantly lower in chicks than adults; this was not observed for zinc (Zn) or lead (Pb). Overall, the species examined here exhibited similar concentrations of Se, with Pb and Zn concentrations more variable among species. The mean Se concentration in adult birds exceeded those thought to be potentially deleterious, and three species were above the assumed threshold for Pb toxicity. Further investigation of potentially toxic trace elements in gadfly petrels is warranted.

Item Details

Item Type:Masters Research
Keywords:seabird conservation, trace metals, pollution, feathers, petrels, lead, Procellariiformes, selenium, zinc
Research Division:Environmental Sciences
Research Group:Environmental management
Research Field:Conservation and biodiversity
Objective Division:Environmental Management
Objective Group:Marine systems and management
Objective Field:Marine biodiversity
UTAS Author:Philpot, S (Ms Susan Philpot)
ID Code:122985
Year Published:2017
Deposited By:Ecology and Biodiversity
Deposited On:2017-12-08
Last Modified:2017-12-11

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