Mercury concentrations decline with age in the fur of females of an insectivorous terrestrial mammal (Myotis lucifugus) ...

(Uploaded by Plazi for the Bat Literature Project) Methylmercury (MeHg) is a toxic form of mercury that bioaccumulates in organisms and biomagnifies through food webs. MeHg concentrations can be high in aquatic environments, and this puts high trophic-level predators who derive energy originating fr...

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Bibliographic Details
Main Authors: Grottoli, Adam D., Swanson, Heidi K., Broders, Hugh G.
Format: Article in Journal/Newspaper
Language:unknown
Published: Zenodo 2023
Subjects:
bat
Online Access:https://dx.doi.org/10.5281/zenodo.13488186
https://zenodo.org/doi/10.5281/zenodo.13488186
Description
Summary:(Uploaded by Plazi for the Bat Literature Project) Methylmercury (MeHg) is a toxic form of mercury that bioaccumulates in organisms and biomagnifies through food webs. MeHg concentrations can be high in aquatic environments, and this puts high trophic-level predators who derive energy originating from aquatic environments at risk of toxic effects. Due to the potential for bioaccumulation of MeHg over an individual's life, the risk of MeHg toxicity may increase as animals age, and this risk may be especially high in species with relatively high metabolic rates. Total mercury (THg) concentrations were measured from the fur of adult female little brown bats (Myotis lucifugus) collected between 2012 and 2017 in Salmonier Nature Park, Newfoundland and Labrador. Using linear mixed-effects models, the effects of age, year, and day of capture on THg concentrations were evaluated and interpreted with AICc and multi-model inference. We expected that THg concentrations would increase with age, and that due to annual ...