Long-term controlled field experiment on the competition between two species of Biomphalaria (Mollusca, Basommatophora), the snail vectors of Schistosoma mansoni in Northeastern Brazil.
Barbosa
C S
CS
Centro de Pesquisas Aggeu Magalhães, Fundação Oswaldo Cruz, Campus da Universidade Federal de Pernambuco, Recife, PE, Brasil.
Barbosa
F S
FS
Arruda
F
F