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  • Abeysinghe, Kasun S.Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550081, Guizhou, Peoples R China.;Chinese Acad Sci, Key Lab Trop Forest Ecol, Xishuangbanna Trop Bot Garden, Mengla 666303, Yunnan, Peoples R China.;Guangxi Univ, Coll Forestry, Guangxi Key Lab Forest Ecol & Conservat, 100 Daxue Rd,Coll Forestry Off 519, Nanning 530005, Guangxi, Peoples R China.;Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China. (författare)

Mercury flow through an Asian rice-based food web

  • Artikel/kapitelEngelska2017

Förlag, utgivningsår, omfång ...

  • ELSEVIER SCI LTD,2017
  • printrdacarrier

Nummerbeteckningar

  • LIBRIS-ID:oai:DiVA.org:uu-334741
  • https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-334741URI
  • https://doi.org/10.1016/j.envpol.2017.05.067DOI
  • https://res.slu.se/id/publ/83908URI

Kompletterande språkuppgifter

  • Språk:engelska
  • Sammanfattning på:engelska

Ingår i deldatabas

Klassifikation

  • Ämneskategori:ref swepub-contenttype
  • Ämneskategori:art swepub-publicationtype

Anmärkningar

  • 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.

Ämnesord och genrebeteckningar

Biuppslag (personer, institutioner, konferenser, titlar ...)

  • Qiu, GuangleChinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550081, Guizhou, Peoples R China. (författare)
  • Goodale, EbenGuangxi Univ, Coll Forestry, Guangxi Key Lab Forest Ecol & Conservat, 100 Daxue Rd,Coll Forestry Off 519, Nanning 530005, Guangxi, Peoples R China. (författare)
  • Anderson, Christopher W. N.Massey Univ, Inst Agr & Environm, Soil & Earth Sci, Palmerston North 4442, New Zealand. (författare)
  • Bishop, KevinSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Uppsala universitet,Institutionen för geovetenskaper,Swedish Univ Agr Sci, Dept Aquat Sci & Assessment, Lennart Hjelmsvag 9, SE-75007 Uppsala, Sweden.,Institutionen för vatten och miljö,Department of Aquatic Sciences and Assessment,Uppsala University(Swepub:slu)47741 (författare)
  • Evers, David C.Biodivers Res Inst, 276 Canco Rd, Portland, ME 04103 USA. (författare)
  • Goodale, Morgan W.Biodivers Res Inst, 276 Canco Rd, Portland, ME 04103 USA. (författare)
  • Hintelmann, HolgerTrent Univ, Chem Dept, 1600 West Bank Dr, Peterborough, ON K9J 7B8, Canada. (författare)
  • Liu, ShengjieChinese Acad Sci, Key Lab Trop Forest Ecol, Xishuangbanna Trop Bot Garden, Mengla 666303, Yunnan, Peoples R China.;Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China. (författare)
  • Mammides, ChristosChinese Acad Sci, Key Lab Trop Forest Ecol, Xishuangbanna Trop Bot Garden, Mengla 666303, Yunnan, Peoples R China. (författare)
  • Quan, Rui-ChangChinese Acad Sci, Key Lab Trop Forest Ecol, Xishuangbanna Trop Bot Garden, Mengla 666303, Yunnan, Peoples R China. (författare)
  • Wang, JinChinese Acad Sci, Key Lab Trop Forest Ecol, Xishuangbanna Trop Bot Garden, Mengla 666303, Yunnan, Peoples R China.;Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China. (författare)
  • Wu, PianpianSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för vatten och miljö,Department of Aquatic Sciences and Assessment,Swedish Univ Agr Sci, Dept Aquat Sci & Assessment, Lennart Hjelmsvag 9, SE-75007 Uppsala, Sweden.(Swepub:slu)92499 (författare)
  • Xu, Xiao-HangChinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550081, Guizhou, Peoples R China.;Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China. (författare)
  • Yang, Xiao-DougChinese Acad Sci, Key Lab Trop Forest Ecol, Xishuangbanna Trop Bot Garden, Mengla 666303, Yunnan, Peoples R China. (författare)
  • Feng, XinbinChinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550081, Guizhou, Peoples R China. (författare)
  • Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550081, Guizhou, Peoples R China.;Chinese Acad Sci, Key Lab Trop Forest Ecol, Xishuangbanna Trop Bot Garden, Mengla 666303, Yunnan, Peoples R China.;Guangxi Univ, Coll Forestry, Guangxi Key Lab Forest Ecol & Conservat, 100 Daxue Rd,Coll Forestry Off 519, Nanning 530005, Guangxi, Peoples R China.;Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China.Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550081, Guizhou, Peoples R China. (creator_code:org_t)
  • Sveriges lantbruksuniversitet

Sammanhörande titlar

  • Ingår i:Environmental Pollution: ELSEVIER SCI LTD229, s. 219-2280269-74911873-6424

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