Data associated with 'Polar bear subpopulation declines due to legacy persistent organic pollutants – temporal and spatial trends’ ...

• Main Author: Hoondert, RPJ
• Format: Dataset
• Language: unknown
• Published: DANS Data Station Life Sciences 2020
• Subjects: Arctic; Erignathus barbatus; Monodon monoceros; Odobenus rosmarus; Phoca groenlandica; Phoca hispida; Ursus maritimus
• Online Access: https://dx.doi.org/10.17026/dans-297-ru3v; https://lifesciences.datastations.nl/citation?persistentId=doi:10.17026/dans-297-ru3v

Although concentrations of many conventional POPs have decreased in the Arctic over the past few decades, levels of most POPs remain high in Arctic areas, especially in top predators like polar bears (Ursus maritimus). So far, studies generally focused on individual effects only. In the study associated to these data we therefore aimed to estimate the (combined and individual) effect of legacy POPs and mercury on population growth rate of nineteen polar bear subpopulations. We modelled polar bear population development in three scenarios, based on SSDs derived for POPs based on ecotoxicity data for endothermic species.Exposure data. Data on POP residues in marine mammal species (mainly Phoca hispida, Phoca largha, Phoca groenlandica, Crystophora cristata , Erignathus barbatus, Odobenus rosmarus and Monodon monoceros), assumed to be the main prey of polar bears in the Arctic, were compiled to calculate potential changes in intrinsic growth rates of polar bear populations. POP concentrations (transformed to ...