GYIG OpenIR  > 环境地球化学国家重点实验室
Mercury flow through an Asian rice-based food web
Kasun S.Abeysinghe;  GuangleQiu;  EbenGoodale;  Christopher W.N.Anderson;  KevinBishop;  David C.Evers;  Morgan W.Goodale;  HolgerHintelmann;  Shengjie Liu;  Xinbin Feng
2017
Source PublicationEnvironmental Pollution
Volume229Pages:219-228
Abstract

Mercury (Hg) is a globally-distributed pollutant, toxic to humans and animals. Emissions are particularly high in Asia, and the source of exposure for humans there may also be different from other regions, including rice as well as fish consumption, particularly in contaminated areas. Yet the threats Asian wildlife face in rice-based ecosystems are as yet unclear. We sought to understand how Hg flows through rice-based food webs in historic mining and non-mining regions of Guizhou, China. We measured total Hg (THg) and methylmercury (MeHg) in soil, rice, 38 animal species (27 for MeHg) spanning multiple trophic levels, and examined the relationship between stable isotopes and Hg concentrations. Our results confirm biomagnification of THg/MeHg, with a high trophic magnification slope. Invertivorous songbirds had concentrations of THg in their feathers that were 15x and 3x the concentration reported to significantly impair reproduction, at mining and non-mining sites, respectively. High concentrations in specialist rice consumers and in granivorous birds, the later as high as in piscivorous birds,, suggest rice is a primary source of exposure. Spiders had the highest THg concentrations among invertebrates and may represent a vector through which Hg is passed to vertebrates, especially songbirds. Our findings suggest there could be significant population level health effects and consequent biodiversity loss in sensitive ecosystems, like agricultural wetlands, across Asia, and invertivorous songbirds would be good subjects for further studies investigating this possibility.

KeywordAgricultural Ecosystems Biomonitoring Contamination Ecotoxicology Food Webs Heavy Metals
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.gyig.ac.cn/handle/42920512-1/7725
Collection环境地球化学国家重点实验室
Affiliation1.Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550081, Guizhou, Peoples R China
2.Guangxi Univ, Coll Forestry, Guangxi Key Lab Forest Ecol & Conservat, 100 Daxue Rd,Coll Forestry Off 519, Nanning 530005, Guangxi, Peoples R China
3.Chinese Acad Sci, Key Lab Trop Forest Ecol, Xishuangbanna Trop Bot Garden, Mengla 666303, Yunnan, Peoples R China
4.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
5.Massey Univ, Inst Agr & Environm, Soil & Earth Sci, Palmerston North 4442, New Zealand
6.Uppsala Univ, Dept Earth Sci, Uppsala 16, S-75236 Villavagen, Sweden
7.Swedish Univ Agr Sci, Dept Aquat Sci & Assessment, Lennart Hjelmsvag 9, SE-75007 Uppsala, Sweden
8.Biodivers Res Inst, 276 Canco Rd, Portland, ME 04103 USA
9.Trent Univ, Chem Dept, 1600 West Bank Dr, Peterborough, ON K9J 7B8, Canada
First Author Affilication中国科学院地球化学研究所
Corresponding Author Affilication中国科学院地球化学研究所
Recommended Citation
GB/T 7714
Kasun S.Abeysinghe;GuangleQiu;EbenGoodale;Christopher W.N.Anderson;KevinBishop;David C.Evers;Morgan W.Goodale;HolgerHintelmann;Shengjie Liu;Xinbin Feng. Mercury flow through an Asian rice-based food web[J]. Environmental Pollution,2017,229:219-228.
APA Kasun S.Abeysinghe;GuangleQiu;EbenGoodale;Christopher W.N.Anderson;KevinBishop;David C.Evers;Morgan W.Goodale;HolgerHintelmann;Shengjie Liu;Xinbin Feng.(2017).Mercury flow through an Asian rice-based food web.Environmental Pollution,229,219-228.
MLA Kasun S.Abeysinghe;GuangleQiu;EbenGoodale;Christopher W.N.Anderson;KevinBishop;David C.Evers;Morgan W.Goodale;HolgerHintelmann;Shengjie Liu;Xinbin Feng."Mercury flow through an Asian rice-based food web".Environmental Pollution 229(2017):219-228.
Files in This Item:
File Name/Size DocType Version Access License
Mercury flow through(1127KB)期刊论文作者接受稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Kasun S.Abeysinghe;GuangleQiu;EbenGoodale;Christopher W.N.Anderson;KevinBishop;David C.Evers;Morgan W.Goodale;HolgerHintelmann;Shengjie Liu;Xinbin Feng]'s Articles
Baidu academic
Similar articles in Baidu academic
[Kasun S.Abeysinghe;GuangleQiu;EbenGoodale;Christopher W.N.Anderson;KevinBishop;David C.Evers;Morgan W.Goodale;HolgerHintelmann;Shengjie Liu;Xinbin Feng]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Kasun S.Abeysinghe;GuangleQiu;EbenGoodale;Christopher W.N.Anderson;KevinBishop;David C.Evers;Morgan W.Goodale;HolgerHintelmann;Shengjie Liu;Xinbin Feng]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Mercury flow through an Asian rice-based food web.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.