期刊
ENVIRONMENTAL POLLUTION
卷 190, 期 -, 页码 51-57出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.envpol.2014.03.017
关键词
Feeding ecology; Kerguelen; Procellariiformes; Seabirds; Southern Ocean
资金
- Poitou-Charentes Region
- Agence Nationale de la Recherche
- Institut Polaire Francais Paul Emile Victor (IPEV) [109]
- Terres Australes et Antarctiques Francaises (TAAF)
- Contrat de Projet Etat Region [CPER 13]
Mercury (Hg) contamination poses potential threats to ecosystems worldwide. In order to study Hg bioavailability in the poorly documented southern Indian Ocean, Hg exposure was investigated in the large avian community of Kerguelen Islands. Adults of 27 species (480 individuals) showed a wide range of feather Hg concentrations, from 0.4 +/- 0.1 to 16.6 +/- 3.8 mu g g(-1) dry weight in Wilson's storm petrels and wandering albatrosses, respectively. Hg concentrations increased roughly in the order crustacean < fish- <= squid- <= carrion-consumers, confirming that diet, rather than taxonomy, is an important driver of avian Hg exposure. Adults presented higher Hg concentrations than chicks, due to a longer duration of exposure, with the only exception being the subantarctic skua, likely because of feeding habits' differences of the two age-classes in this species. High Hg concentrations were reported for three species of the poorly known gadfly petrels, which merit further investigation. (C) 2014 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据