PAGES: 281-286 DOI: Full paper
RETRACTED: Diffusion Model Applied to Postfeeding Larval Dispersal in Blowflies (Diptera: Calliphoridae)

RC Bassanezi +, MBF LeiteI, WAC GodoyII, CJ Von ZubenIII, FJ Von ZubenIV, SF dos ReisV + ++

Departamento de Matemática Aplicada, IMECC, Universidade Estadual de Campinas, SP, Brasil
IInstituto de Ciências Exatas, Pontifícia Universidade Católica de Campinas, SP, Brasil
IIDepartamento de Parasitologia, Universidade Estadual Paulista, Botucatu, SP, Brasil
IIIDepartamento de Zoologia, Universidade de Brasília, Brasília, DF, Brasil
IVDepartamento de Engenharia de Computação e Automação Industrial, Universidade Estadual de Campinas, SP, Brasil
VDepartamento de Parasitologia, Universidade Estadual de Campinas, Caixa Postal 6109, 13083-970 Campinas, SP, Brasil


The article "Diffusion Model Applied to Postfeeding Larval Dispersal in Blowflies (Diptera: Calliphoridae)" published in Memorias do Instituto do Oswaldo Cruz 92(2):281-286, 1997,, authored by RC Bassanezi, MBF Leite, WAC Godoy, CJ Von Zuben, FJ Von Zuben, and SF dos Reis has been retracted. We have been informed about the use of graphical figure presentation published in Journal of Theoretical Biology vol. 185(4):523-531 1997, and following a careful analysis of the content in both papers, we concluded that the figure presented in Mem. Inst. Oswaldo Cruz 92(2):281-286, 1997 constitutes plagiarism. Consequently, we decided to retract this paper.


This paper presents a diffusion model of larval dispersal especifically designed to account for particular aspects of postfeeding larval dispersal from the food source in organisms such as blowflies. In these organisms the dispersal of immatures includes two groups of individuals, those that are actively migrating and those that have initiated the pupation process. The classical diffusion equation in one dimension was modified to incorporate a function which describes the burying of larvae to become pupae. The analytical solution of this equation predicts oscillatory and monotonic dispersal behaviors, which are observed in experimental populations of blowfly species.


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