Implications of spatial aggregation of parasites for the population dynamics in host-parasite interaction

Detalhes bibliográficos
Autor(a) principal: Von Zuben, Claudio J.
Data de Publicação: 1997
Tipo de documento: Artigo
Idioma: por
Título da fonte: Revista de Saúde Pública
Texto Completo: https://www.revistas.usp.br/rsp/article/view/24322
Resumo: Some aspects of the widely observed over-dispersed pattern of the distribution of parasites within the host population are examined. It has been established in the parasitological literature that most hosts usually harbour few parasites, while only few hosts harbour a large proportion of the parasite population. Factors that may influence the pattern of distribution of parasites, the relation between the level of parasite aggregation and the prevalence of infection, and changes in this level of aggregation as a function of host age are analysed. Factors which determine the diversity of species in parasite communities are presented, and aspects of exploitative and interference competition among parasites and their relations with biological control procedures are also considered. Attention is also focused on the regulatory and destabilizing processes influencing the dynamic behaviour of host-parasite population interactions.
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spelling Implications of spatial aggregation of parasites for the population dynamics in host-parasite interaction Implicações da agregação espacial de parasitas para a dinâmica populacional na interação hospedeiro-parasita Relações hospedeiro-parasitaDistribuição espacialHost-parasite relationsResidence characteristics Some aspects of the widely observed over-dispersed pattern of the distribution of parasites within the host population are examined. It has been established in the parasitological literature that most hosts usually harbour few parasites, while only few hosts harbour a large proportion of the parasite population. Factors that may influence the pattern of distribution of parasites, the relation between the level of parasite aggregation and the prevalence of infection, and changes in this level of aggregation as a function of host age are analysed. Factors which determine the diversity of species in parasite communities are presented, and aspects of exploitative and interference competition among parasites and their relations with biological control procedures are also considered. Attention is also focused on the regulatory and destabilizing processes influencing the dynamic behaviour of host-parasite population interactions. São discutidos aspectos relacionados ao padrão comumente observado de distribuição agregada de parasitas na população-hospedeira. Geralmente observa-se que a maioria dos hospedeiros alberga poucos parasitas, enquanto que poucos hospedeiros albergam a maior proporção dos parasitas. Assim sendo, são analisados fatores que podem influenciar o padrão de distribuição dos parasitas, a relação entre o nível de agregação dos parasitas e a prevalência de infecção, além da variação nesse nível de agregação em função da idade do hospedeiro. Também são considerados fatores que determinam a diversidade de espécies em comunidades de parasitas, os diferentes tipos de competição entre os parasitas e sua relação com o controle biológico. Finalmente são discutidos processos biológicos considerados como de estabilização e de instabilidade sobre o comportamento dinâmico de interações hospedeiro-parasita. Universidade de São Paulo. Faculdade de Saúde Pública1997-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/rsp/article/view/2432210.1590/S0034-89101997000600014Revista de Saúde Pública; Vol. 31 No. 5 (1997); 523-530 Revista de Saúde Pública; Vol. 31 Núm. 5 (1997); 523-530 Revista de Saúde Pública; v. 31 n. 5 (1997); 523-530 1518-87870034-8910reponame:Revista de Saúde Públicainstname:Universidade de São Paulo (USP)instacron:USPporhttps://www.revistas.usp.br/rsp/article/view/24322/26246Copyright (c) 2017 Revista de Saúde Públicainfo:eu-repo/semantics/openAccessVon Zuben, Claudio J.2012-05-29T16:51:46Zoai:revistas.usp.br:article/24322Revistahttps://www.revistas.usp.br/rsp/indexONGhttps://www.revistas.usp.br/rsp/oairevsp@org.usp.br||revsp1@usp.br1518-87870034-8910opendoar:2012-05-29T16:51:46Revista de Saúde Pública - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Implications of spatial aggregation of parasites for the population dynamics in host-parasite interaction
Implicações da agregação espacial de parasitas para a dinâmica populacional na interação hospedeiro-parasita
title Implications of spatial aggregation of parasites for the population dynamics in host-parasite interaction
spellingShingle Implications of spatial aggregation of parasites for the population dynamics in host-parasite interaction
Von Zuben, Claudio J.
Relações hospedeiro-parasita
Distribuição espacial
Host-parasite relations
Residence characteristics
title_short Implications of spatial aggregation of parasites for the population dynamics in host-parasite interaction
title_full Implications of spatial aggregation of parasites for the population dynamics in host-parasite interaction
title_fullStr Implications of spatial aggregation of parasites for the population dynamics in host-parasite interaction
title_full_unstemmed Implications of spatial aggregation of parasites for the population dynamics in host-parasite interaction
title_sort Implications of spatial aggregation of parasites for the population dynamics in host-parasite interaction
author Von Zuben, Claudio J.
author_facet Von Zuben, Claudio J.
author_role author
dc.contributor.author.fl_str_mv Von Zuben, Claudio J.
dc.subject.por.fl_str_mv Relações hospedeiro-parasita
Distribuição espacial
Host-parasite relations
Residence characteristics
topic Relações hospedeiro-parasita
Distribuição espacial
Host-parasite relations
Residence characteristics
description Some aspects of the widely observed over-dispersed pattern of the distribution of parasites within the host population are examined. It has been established in the parasitological literature that most hosts usually harbour few parasites, while only few hosts harbour a large proportion of the parasite population. Factors that may influence the pattern of distribution of parasites, the relation between the level of parasite aggregation and the prevalence of infection, and changes in this level of aggregation as a function of host age are analysed. Factors which determine the diversity of species in parasite communities are presented, and aspects of exploitative and interference competition among parasites and their relations with biological control procedures are also considered. Attention is also focused on the regulatory and destabilizing processes influencing the dynamic behaviour of host-parasite population interactions.
publishDate 1997
dc.date.none.fl_str_mv 1997-10-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://www.revistas.usp.br/rsp/article/view/24322
10.1590/S0034-89101997000600014
url https://www.revistas.usp.br/rsp/article/view/24322
identifier_str_mv 10.1590/S0034-89101997000600014
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://www.revistas.usp.br/rsp/article/view/24322/26246
dc.rights.driver.fl_str_mv Copyright (c) 2017 Revista de Saúde Pública
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2017 Revista de Saúde Pública
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade de São Paulo. Faculdade de Saúde Pública
publisher.none.fl_str_mv Universidade de São Paulo. Faculdade de Saúde Pública
dc.source.none.fl_str_mv Revista de Saúde Pública; Vol. 31 No. 5 (1997); 523-530
Revista de Saúde Pública; Vol. 31 Núm. 5 (1997); 523-530
Revista de Saúde Pública; v. 31 n. 5 (1997); 523-530
1518-8787
0034-8910
reponame:Revista de Saúde Pública
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Revista de Saúde Pública
collection Revista de Saúde Pública
repository.name.fl_str_mv Revista de Saúde Pública - Universidade de São Paulo (USP)
repository.mail.fl_str_mv revsp@org.usp.br||revsp1@usp.br
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