Biological Trace Element Research

, Volume 147, Issue 1–3, pp 97–102 | Cite as

Heavy Metals in Hair of Wild Canids from the Brazilian Cerrado

  • Nelson Henrique de Almeida Curi
  • Carlos Henrique Hoff Brait
  • Nelson Roberto Antoniosi Filho
  • Sônia Aparecida Talamoni


In this study, we aimed to assess whether free-ranging wild canids are exposed to heavy metals in one of the most developed and populated regions of Brazil. Hair of 26 wild canids (maned wolves Chrysocyon brachyurus, crab-eating foxes Cerdocyon thous, and hoary foxes Lycalopex vetulus) from the Cerrado biome in Southeast Brazil were analyzed by spectrophotometry to detect cadmium, chromium, and lead, and also the essential copper, iron, manganese, and zinc traces. All samples showed traces of copper, iron, manganese, and zinc. Non-essential lead was detected in 57% (2.35 ± 0.99 mg/kg), and chromium in 88% (2.98 ± 1.56 mg/kg) of samples. Cadmium traces (detection limit 0.8 mg/kg) were not found. Crab-eating foxes had more copper, iron, and manganese in hair than maned wolves. Correlations among element levels differed between maned wolves and crab-eating foxes. Concentrations of chromium and lead were outstandingly higher than in wild canids from other areas. Addressing the causes of such levels and the impacts of the heavy metal pollution in Neotropical ecosystems is urgent for animal health and conservation purposes. We argue that heavy metal pollution should be considered as dangerous threats to wildlife health in Brazil and recommend hair sampling as a biomonitoring tool for heavy metals in Neotropical terrestrial mammals.


Cerdocyon thous Chrysocyon brachyurus Heavy metal pollution Lycalopex vetulus Wild canid conservation 



We would like to thank the research group in Buenos Aires Farm, especially Joanna Van de Schepop, Miguel Cançado and Robert Young; inhabitants of the study areas; IBAMA (Brazilian Institute of Environment and Renewable Natural Resources) for licenses conceded. The anonymous reviewers offered valuable comments that helped to improve the manuscript. We would like to thank Fundação O Boticário de Proteção à Natureza and PLANTAR S.A. for the financial support.


  1. 1.
    Costa LP, Leite YRL, Mendes SL, Ditchfield AD (2005) Mammal conservation in Brazil. Conserv Biol 19:672–679CrossRefGoogle Scholar
  2. 2.
    Courtenay O, Macdonald DW, Gillingham S, Almeida G, Dias S (2006) First observations on South America’s largely insectivorous canid: the hoary fox (Pseudalopex vetulus). J Zool 268:45–54CrossRefGoogle Scholar
  3. 3.
    Jácomo ATA, Silveira L, Diniz-Filho JAF (2004) Niche separation between the maned wolf (Chrysocyon brachyurus), the crab-eating fox (Dusicyon thous) and the hoary fox (Dusicyon vetulus) in central Brazil. J Zool 262:99–106CrossRefGoogle Scholar
  4. 4.
    Motta-Junior JC, Talamoni SA, Lombardi JA, Simokomaki K (1996) Diet of the maned wolf, Chrysocyon Brachyurus, in central Brazil. J Zool 240:277–284CrossRefGoogle Scholar
  5. 5.
    Facure KG, Monteiro-Filho ELA (1996) Feeding habits of the crab-eating fox, Cerdocyon thous (Carnivora, Canidae) in a suburban area of southeastern Brazil. Mammalia 60:147–149Google Scholar
  6. 6.
    Facure KG, Giaretta AA, Monteiro-Filho ELA (2003) Food habits of the crab-eating fox, Cerdocyon thous, in an altitudinal forest of the Mantiqueira range, southeastern Brazil. Mammalia 67:503–511Google Scholar
  7. 7.
    Rocha VJ, Aguiar LM, Silva-Pereira JE, Moro-Rios RF, Passos FC (2008) Feeding habits of the crab-eating fox, Cerdocyon thous (Carnivora: Canidae), in a mosaic area with native and exotic vegetation in Southern Brazil. Rev Bras Zool 25:594–600CrossRefGoogle Scholar
  8. 8.
    Silva JA, Talamoni SA (2003) Diet adjustments of maned wolves, Chrysocyon brachyurus (Illiger) (Mammalia, Canidae), subjected to supplemental feeding in a private natural reserve, Southeastern Brazil. Rev Bras Zool 20:339–345CrossRefGoogle Scholar
  9. 9.
    Macdonald DW, Sillero-Zubiri C (2004) Biology and conservation of wild canids. Oxford University Press, OxfordCrossRefGoogle Scholar
  10. 10.
    Rashed MN, Soltan ME (2005) Animal hair as biological indicator for heavy metal pollution in urban and rural areas. Environ Monit Assess 110:41–53PubMedCrossRefGoogle Scholar
  11. 11.
    Baldwin DR, Marshall WJ (1999) Heavy metal poisoning and its laboratory investigation. Ann Clin Biochem 36:267–300PubMedGoogle Scholar
  12. 12.
    Brait CHH, Filho NRA, Furtado MM (2009) Utilização de pêlos de animais silvestres para monitoramento ambiental de Cd, Cr, Cu, Fe, Mn, Pb e Zn. Quím Nova 32:1384–1388CrossRefGoogle Scholar
  13. 13.
    McLean CM, Koller CE, Rodger JC, MacFarlane GR (2009) Mammalian hair as an accumulative bioindicator of metal bioavailability in Australian terrestrial environments. Sci Tot Environ 407:3588–3596CrossRefGoogle Scholar
  14. 14.
    Vermeulen F, D’Havé H, Mubiana VK, Van den Brink NW, Blust R, Bervoets L, De Coen W (2009) Relevance of hair and spines of the European hedgehog (Erinaceus europaeus) as biomonitoring tissues for arsenic and metals in relation to blood. Sci Tot Environ 407:1775–1783CrossRefGoogle Scholar
  15. 15.
    Davison G, Lambie CL, James WM, Skene ME, Skene KR (2001) Metal content in insects associated with ultramafic and non-ultramafic sites in the Scottish Highlands. Ecol Entomol 24:396–401CrossRefGoogle Scholar
  16. 16.
    Heikens A, Peijnenburg WJGM, Hendriks AJ (2001) Bioaccumulation of heavy metals in terrestrial invertebrates. Environ Poll 113:385–393CrossRefGoogle Scholar
  17. 17.
    Maffucci F, Caurant F, Bustamante P, Bentivegna F (2005) Trace element (Cd, Cu, Hg, Se, Zn) accumulation and tissue distribution in loggerhead turtles (Caretta caretta) from the western Mediterranean sea (southern Italy). Chemosphere 58:535–542PubMedCrossRefGoogle Scholar
  18. 18.
    Licata P, Naccari F, Lo Turco V, Rando R, Di Bella G, Dugo G (2010) Levels of Cd (II), Mn (II), Pb (II), Cu (II) and Zn (II) in common buzzard (Buteo buteo) from Sicily (Italy) by derivative stripping potentiometry. Int J Ecol. doi: 10.1155/2010/541948
  19. 19.
    Mateo R, Taggart M, Meharg AA (2003) Lead and arsenic in bones of birds of prey from Spain. Environ Poll 126:107–114CrossRefGoogle Scholar
  20. 20.
    Sánchez-Chardi A, Peñarroja-Matutano C, Borrás M, Nadal J (2009) Bioaccumulation of metals and effects of a landfill in small mammals Part III: structural alterations. Environ Res 109:960–967PubMedCrossRefGoogle Scholar
  21. 21.
    Scanlon PF (1987) Heavy metals in small mammals in roadside environments: implications for food chains. Sci Tot Environ 59:317–323CrossRefGoogle Scholar
  22. 22.
    Talmage SS, Walton BT (1991) Small mammals as monitors of environmental contaminants. Rev Environ Contam Toxicol 119:47–145PubMedCrossRefGoogle Scholar
  23. 23.
    Pokorny B (2000) Roe deer Capreolus capreolus as an accumulative bioindicator of heavy metals in Slovenia. Web Ecol 1:54–62Google Scholar
  24. 24.
    Corsolini S, Focardi S, Leonzio C, Lovari S, Monaci F, Romeo G (1999) Heavy metals and chlorinated hydrocarbon concentration in the red fox in relation to some biological parameters. Environ Monit Assess 54:87–100CrossRefGoogle Scholar
  25. 25.
    Hoekstra PF, Braune BM, Elkin B, Armstrong FAJ, Muir DCG (2003) Concentrations of selected essential and non-essential elements in arctic fox (Alopex lagopus) and wolverines (Gulo gulo) from the Canadian Arctic. Sci Tot Environ 309:81–92CrossRefGoogle Scholar
  26. 26.
    Moreno JEA, Gerpe MS, Moreno VJ, Vodopivez C (1997) Heavy metals in Antarctic organisms. Polar Biol 17:131–140CrossRefGoogle Scholar
  27. 27.
    Piskorová L, Vasilková Z, Krupicer I (2003) Heavy metal residues of wild boar (Sus scrofa) and red fox (Vulpes vulpes) in the central Zemplin region of the Slovak Republic. Czech J Anim Sci 48:134–138Google Scholar
  28. 28.
    Monteiro-Neto C, Itavo RV, Moraes LES (2003) Concentrations of heavy metals in Sotalia fluviatilis (Cetacea: Delphinidae) off the coast of Ceará, northeast Brazil. Environ Poll 123:319–324CrossRefGoogle Scholar
  29. 29.
    Carvalho CEV, Faria VV, Cavalcante MPO, Gomes MP, Rezende CE (2000) Heavy metal distribution in benthonic coastal fish from Macaé region, R.J., Brazil. Ecotoxicol Environ Restor 3:64–68Google Scholar
  30. 30.
    Curi NHA, Araújo AS, Campos FS, Lobato ZIP, Gennari SM, Marvulo MFV, Silva JCR, Talamoni SA (2010) Wild canids, domestic dogs and their pathogens in Southeast Brazil: disease threats for canid conservation. Biodivers Conserv 19:3513–3524CrossRefGoogle Scholar
  31. 31.
    Curi NHA, Miranda I, Talamoni SA (2006) Serologic evidence of Leishmania infection in free-ranging wild and domestic canids around a Brazilian National Park. Mem Inst Oswaldo Cruz 101:99–101PubMedCrossRefGoogle Scholar
  32. 32.
    Curi NHA, Talamoni SA (2006) Trapping, restraint and clinical-morphological traits of wild canids (Carnivora, Mammalia) from the Brazilian Cerrado. Rev Bras Zool 23:1148–1152CrossRefGoogle Scholar
  33. 33.
    Machado ABM, Martins CS, Drummond GM (2005) Lista da fauna brasileira ameaçada de extinção: incluindo as espécies quase ameaçadas e deficientes em dados. Fundação Biodiversitas, Belo HorizonteGoogle Scholar
  34. 34.
    Courtenay O, Maffei L (2008) Cerdocyon thous. In: IUCN 2010. IUCN Red List of Threatened Species. Version 2010.1. Accessed 27 April 2010
  35. 35.
    Dalponte J, Courtenay O (2008) Pseudalopex vetulus. In: IUCN 2010. IUCN Red List of Threatened Species. Version 2010.1. Accessed 27 April 2010
  36. 36.
    Rodden M, Rodrigues F, Bestelmeyer S (2008) Chrysocyon brachyurus. In: IUCN 2010. IUCN Red List of Threatened Species. Version 2010.1. Accessed 27 April 2010
  37. 37.
    Zar JH (1999) Biostatistical analysis. Prentice Hall, Upper Saddle RiverGoogle Scholar
  38. 38.
    Castro SV (2006) Efeitos de metais pesados presentes na água sobre a estrutura das comunidades bentônicas do Alto Rio das Velhas, MG. Dissertation, Universidade Federal de Minas GeraisGoogle Scholar
  39. 39.
    Alleva E, Francia N, Pandolfi M, De Marinis AM, Chiarotti F, Santucci D (2006) Organochlorine and heavy-metal contaminants in wild mammals and birds of Urbino-Pesaro province, Italy: an analytic overview for potential bioindicators. Arch Environ Contam Toxicol 51:123–134PubMedCrossRefGoogle Scholar
  40. 40.
    Lefcort H, Meguire RA, Wilson LH, Ettinger WF (1998) Heavy metals alter the survival, growth, metamorphosis, and antipredatory behavior of Columbia Spotted Frog (Rana luteiventris) tadpoles. Arch Environ Contam Toxicol 35:447–456PubMedCrossRefGoogle Scholar
  41. 41.
    McLelland JM, Reid C, McInnes K, Roe WD, Gartrell BD (2010) Evidence of lead exposure in a free-ranging population of kea (Nestor notabilis). J Wildl Dis 46:532–540PubMedGoogle Scholar
  42. 42.
    Courtenay O, Quinnel RJ, Chalmers WSK (2001) Contact rates between wild and domestic canids: no evidence of parvovirus or canine distemper virus in crab-eating foxes. Vet Microbiol 81:9–19PubMedCrossRefGoogle Scholar
  43. 43.
    Lodenius M, Tulisalo E (1984) Environmental mercury contamination around a chlor-alkali plant. Bull Environ Contam Toxicol 32:439–444PubMedCrossRefGoogle Scholar
  44. 44.
    Marcogliese DJ, Pietrock M (2011) Combined effects of parasites and contaminants on animal health: parasites do matter. Trends Parasitol 27:123–130PubMedCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Nelson Henrique de Almeida Curi
    • 1
    • 3
  • Carlos Henrique Hoff Brait
    • 2
  • Nelson Roberto Antoniosi Filho
    • 2
  • Sônia Aparecida Talamoni
    • 1
  1. 1.Programa de Pós-Graduação em Zoologia de Vertebrados—PUC MinasBelo HorizonteBrazil
  2. 2.Programa de Doutorado em Ciências AmbientaisUniversidade Federal de GoiásGoiâniaBrazil
  3. 3.Programa de Pós-Graduação em Ecologia Aplicada, Departamento de BiologiaUniversidade Federal de LavrasLavrasBrazil

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