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dc.contributor.author
Aparicio, Juan Pablo
dc.contributor.author
Solari, Hernan Gustavo
dc.contributor.author
Bonino, Never
dc.date.available
2019-04-08T16:36:46Z
dc.date.issued
2004-12
dc.identifier.citation
Aparicio, Juan Pablo; Solari, Hernan Gustavo; Bonino, Never; Competition and coexistence in host-parasite systems: The myxomatosis case; Springer Tokyo; Population Ecology; 46; 1; 12-2004; 71-85
dc.identifier.issn
1438-3896
dc.identifier.uri
http://hdl.handle.net/11336/73411
dc.description.abstract
Co-circulation of several strains of parasites has been observed in many host-parasite systems. However, simple epidemiological models cannot sustain this coexistence. In this work we study the coexistence of viral strains in the myxomatosis case. Myxomatosis, a highly lethal disease of the European rabbit, has been used in Australia and Europe as a biological control of rabbit populations. A few years after its introduction, the original highly virulent strains were almost completely replaced by field strains covering a wide range of virulence. Here, we study several mechanisms that may explain the field observations. First we considered spatial heterogeneity. The establishment of any strain over regions occupied by host populations may delay the spread of any superior competitive virus strain, producing global coexistence in the long term. On the other hand, sub-populations with different resistance levels in epidemiological contact, as observed in the field, can maintain several different virus strains co-circulating. The second class of mechanism introduces diversity among hosts of a local population sharing a territory. We considered different classes of host resistance to myxomatosis: belonging to a resistance class is a random fact. Host age-dependent resistance is also especially considered. These types of population heterogeneity can sustain local coexistence for many years, although exclusion takes place for long enough periods. The concurrent action of both types of mechanisms could explain why the diversity of virus strains is sustained, and the local coexistence. Finally, we briefly discuss the influence of host genetic dynamics in the coevolution of the system. © The Society of Population Ecology and Springer-Verlag Tokyo 2004.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer Tokyo
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Co-Evolution
dc.subject
Epizootic
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Mathematical Model
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Population Dynamics
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Rabbit
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Virulence
dc.subject.classification
Astronomía
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Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Competition and coexistence in host-parasite systems: The myxomatosis case
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-04-05T18:26:34Z
dc.journal.volume
46
dc.journal.number
1
dc.journal.pagination
71-85
dc.journal.pais
Japón
dc.journal.ciudad
Tokyo
dc.description.fil
Fil: Aparicio, Juan Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
dc.description.fil
Fil: Solari, Hernan Gustavo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
dc.description.fil
Fil: Bonino, Never. Instituto Nacional de Tecnologia Agropecuaria Bariloche; Argentina
dc.journal.title
Population Ecology
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s10144-004-0173-0


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