Implications of spatial aggregation of parasites for the population dynamics in host-parasite interaction
Autor(a) principal: | |
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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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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 |
_version_ |
1800221778371411968 |