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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 96, No. s1, 2001, pp. 173-176
Bioline Code: oc01171
Full paper language: English
Document type: Research Article
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 96, No. s1, 2001, pp. 173-176

 en Possible Competitive Displacement of Planorbids by Melanoides tuberculata check for this species in other resources in Minas Gerais, Brazil
Carlos Tito Guimarães; Cecília Pereira de Souza & Delza de Moura Soares

Abstract

Several species of snails, including Pomacea haustrum check for this species in other resources , Marisa cornuarietis check for this species in other resources and Helisoma duryi check for this species in other resources , have been identified as probable competitors and/or predators of planorbid intermediate hosts of Schistosoma check for this species in other resources . During the last few years, studies carried out in the Caribbean region have shown reductions and even disappearances of populations of Biomphalaria glabrata check for this species in other resources and B. straminea check for this species in other resources in breeding places where the snail Melanoides tuberculata check for this species in other resources was introduced. Observations made over a period of 10 years in two lakes close to Belo Horizonte, MG, showed that there were marked reductions in autochthonous populations of B. glabrata and B. straminea after the arrival of M. tuberculata check for this species in other resources , both Biomphalaria check for this species in other resources species disappearing completely after eight years.

Keywords
interspecific competition, Melanoides tuberculata, Biomphalaria glabrata, Biomphalaria straminea, Brazil

 
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