Deciphering arboviral emergence within insular ecosystems
The spatial dynamics of zoonotic arthropod-borne viruses is a fashionable though challenging topic. Inter-human local transmission of a given arbovirus during an outbreak and its spread over large distances are considered as key parameters of emergence. Here, we suggest that insular ecosystems provide ideal natural ''laboratory'' conditions to uncouple local transmission from long distance spread, and differentiate these two processes. Due to geographic isolation, often-limited land surface area and relatively homogenous ecosystems, oceanic islands display low species richness and often-high levels of endemism. These aspects provide the means for comprehensive entomological surveys and investigations of original host/pathogen interactions. In addition, islands are interconnected through discrete anthropogenic and non-anthropogenic exchanges: whilst islands maintain a substantial level of human and domestic animal exchange with other neighbouring or distant territories, they also comprise dispersal and migratory pathways of volant organisms (insects, birds and bats). Hence, both anthropogenic and non-anthropogenic exchanges in island systems are easier to identify and investigate than in continuous, continental systems. Finally, island ecosystems tend to be notably simpler, more prone to invasive taxa and, therefore, easier to document the colonization or displacement of vector species. These different aspects are presented and overlaid upon the spread of arboviruses within two distinct insular systems: islands of Polynesia and the south-western Indian Ocean. The former have been repeatedly affected by Dengue fever epidemics, while the latter recently suffered four successive epidemics, probably of east African origin, three of which involved the emerging viruses Chikungunya, Rift Valley and Dengue fever. Here, we review some new insights into arboviral spread and evolution associated with investigations that followed these epidemics, as well as several aspects that make insular ecosystems favourable to the investigation of arboviral transmission and spread.
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dig-cirad-fr-5644432024-01-28T20:29:56Z http://agritrop.cirad.fr/564443/ http://agritrop.cirad.fr/564443/ Deciphering arboviral emergence within insular ecosystems. Tortosa Pablo, Pascalis Hervé, Guernier Vanina, Cardinale Eric, Le Corre Matthieu, Goodman Steven M., Dellagi Koussay. 2012. Infection, Genetics and Evolution, 12 (6) : 1333-1339.https://doi.org/10.1016/j.meegid.2012.03.024 <https://doi.org/10.1016/j.meegid.2012.03.024> Deciphering arboviral emergence within insular ecosystems Tortosa, Pablo Pascalis, Hervé Guernier, Vanina Cardinale, Eric Le Corre, Matthieu Goodman, Steven M. Dellagi, Koussay eng 2012 Infection, Genetics and Evolution L73 - Maladies des animaux L72 - Organismes nuisibles des animaux virus des animaux évolution écosystème île épidémiologie transmission des maladies vecteur de maladie distribution spatiale endémie étude de cas migration animale adaptation http://aims.fao.org/aos/agrovoc/c_32849 http://aims.fao.org/aos/agrovoc/c_2745 http://aims.fao.org/aos/agrovoc/c_2482 http://aims.fao.org/aos/agrovoc/c_3962 http://aims.fao.org/aos/agrovoc/c_2615 http://aims.fao.org/aos/agrovoc/c_2329 http://aims.fao.org/aos/agrovoc/c_8164 http://aims.fao.org/aos/agrovoc/c_36230 http://aims.fao.org/aos/agrovoc/c_16416 http://aims.fao.org/aos/agrovoc/c_24392 http://aims.fao.org/aos/agrovoc/c_32926 http://aims.fao.org/aos/agrovoc/c_117 océan Indien Afrique orientale http://aims.fao.org/aos/agrovoc/c_3828 http://aims.fao.org/aos/agrovoc/c_2442 The spatial dynamics of zoonotic arthropod-borne viruses is a fashionable though challenging topic. Inter-human local transmission of a given arbovirus during an outbreak and its spread over large distances are considered as key parameters of emergence. Here, we suggest that insular ecosystems provide ideal natural ''laboratory'' conditions to uncouple local transmission from long distance spread, and differentiate these two processes. Due to geographic isolation, often-limited land surface area and relatively homogenous ecosystems, oceanic islands display low species richness and often-high levels of endemism. These aspects provide the means for comprehensive entomological surveys and investigations of original host/pathogen interactions. In addition, islands are interconnected through discrete anthropogenic and non-anthropogenic exchanges: whilst islands maintain a substantial level of human and domestic animal exchange with other neighbouring or distant territories, they also comprise dispersal and migratory pathways of volant organisms (insects, birds and bats). Hence, both anthropogenic and non-anthropogenic exchanges in island systems are easier to identify and investigate than in continuous, continental systems. Finally, island ecosystems tend to be notably simpler, more prone to invasive taxa and, therefore, easier to document the colonization or displacement of vector species. These different aspects are presented and overlaid upon the spread of arboviruses within two distinct insular systems: islands of Polynesia and the south-western Indian Ocean. The former have been repeatedly affected by Dengue fever epidemics, while the latter recently suffered four successive epidemics, probably of east African origin, three of which involved the emerging viruses Chikungunya, Rift Valley and Dengue fever. Here, we review some new insights into arboviral spread and evolution associated with investigations that followed these epidemics, as well as several aspects that make insular ecosystems favourable to the investigation of arboviral transmission and spread. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/564443/1/document_564443.pdf application/pdf Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1016/j.meegid.2012.03.024 10.1016/j.meegid.2012.03.024 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.meegid.2012.03.024 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1016/j.meegid.2012.03.024 |
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L73 - Maladies des animaux L72 - Organismes nuisibles des animaux virus des animaux évolution écosystème île épidémiologie transmission des maladies vecteur de maladie distribution spatiale endémie étude de cas migration animale adaptation http://aims.fao.org/aos/agrovoc/c_32849 http://aims.fao.org/aos/agrovoc/c_2745 http://aims.fao.org/aos/agrovoc/c_2482 http://aims.fao.org/aos/agrovoc/c_3962 http://aims.fao.org/aos/agrovoc/c_2615 http://aims.fao.org/aos/agrovoc/c_2329 http://aims.fao.org/aos/agrovoc/c_8164 http://aims.fao.org/aos/agrovoc/c_36230 http://aims.fao.org/aos/agrovoc/c_16416 http://aims.fao.org/aos/agrovoc/c_24392 http://aims.fao.org/aos/agrovoc/c_32926 http://aims.fao.org/aos/agrovoc/c_117 http://aims.fao.org/aos/agrovoc/c_3828 http://aims.fao.org/aos/agrovoc/c_2442 L73 - Maladies des animaux L72 - Organismes nuisibles des animaux virus des animaux évolution écosystème île épidémiologie transmission des maladies vecteur de maladie distribution spatiale endémie étude de cas migration animale adaptation http://aims.fao.org/aos/agrovoc/c_32849 http://aims.fao.org/aos/agrovoc/c_2745 http://aims.fao.org/aos/agrovoc/c_2482 http://aims.fao.org/aos/agrovoc/c_3962 http://aims.fao.org/aos/agrovoc/c_2615 http://aims.fao.org/aos/agrovoc/c_2329 http://aims.fao.org/aos/agrovoc/c_8164 http://aims.fao.org/aos/agrovoc/c_36230 http://aims.fao.org/aos/agrovoc/c_16416 http://aims.fao.org/aos/agrovoc/c_24392 http://aims.fao.org/aos/agrovoc/c_32926 http://aims.fao.org/aos/agrovoc/c_117 http://aims.fao.org/aos/agrovoc/c_3828 http://aims.fao.org/aos/agrovoc/c_2442 |
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L73 - Maladies des animaux L72 - Organismes nuisibles des animaux virus des animaux évolution écosystème île épidémiologie transmission des maladies vecteur de maladie distribution spatiale endémie étude de cas migration animale adaptation http://aims.fao.org/aos/agrovoc/c_32849 http://aims.fao.org/aos/agrovoc/c_2745 http://aims.fao.org/aos/agrovoc/c_2482 http://aims.fao.org/aos/agrovoc/c_3962 http://aims.fao.org/aos/agrovoc/c_2615 http://aims.fao.org/aos/agrovoc/c_2329 http://aims.fao.org/aos/agrovoc/c_8164 http://aims.fao.org/aos/agrovoc/c_36230 http://aims.fao.org/aos/agrovoc/c_16416 http://aims.fao.org/aos/agrovoc/c_24392 http://aims.fao.org/aos/agrovoc/c_32926 http://aims.fao.org/aos/agrovoc/c_117 http://aims.fao.org/aos/agrovoc/c_3828 http://aims.fao.org/aos/agrovoc/c_2442 L73 - Maladies des animaux L72 - Organismes nuisibles des animaux virus des animaux évolution écosystème île épidémiologie transmission des maladies vecteur de maladie distribution spatiale endémie étude de cas migration animale adaptation http://aims.fao.org/aos/agrovoc/c_32849 http://aims.fao.org/aos/agrovoc/c_2745 http://aims.fao.org/aos/agrovoc/c_2482 http://aims.fao.org/aos/agrovoc/c_3962 http://aims.fao.org/aos/agrovoc/c_2615 http://aims.fao.org/aos/agrovoc/c_2329 http://aims.fao.org/aos/agrovoc/c_8164 http://aims.fao.org/aos/agrovoc/c_36230 http://aims.fao.org/aos/agrovoc/c_16416 http://aims.fao.org/aos/agrovoc/c_24392 http://aims.fao.org/aos/agrovoc/c_32926 http://aims.fao.org/aos/agrovoc/c_117 http://aims.fao.org/aos/agrovoc/c_3828 http://aims.fao.org/aos/agrovoc/c_2442 Tortosa, Pablo Pascalis, Hervé Guernier, Vanina Cardinale, Eric Le Corre, Matthieu Goodman, Steven M. Dellagi, Koussay Deciphering arboviral emergence within insular ecosystems |
description |
The spatial dynamics of zoonotic arthropod-borne viruses is a fashionable though challenging topic. Inter-human local transmission of a given arbovirus during an outbreak and its spread over large distances are considered as key parameters of emergence. Here, we suggest that insular ecosystems provide ideal natural ''laboratory'' conditions to uncouple local transmission from long distance spread, and differentiate these two processes. Due to geographic isolation, often-limited land surface area and relatively homogenous ecosystems, oceanic islands display low species richness and often-high levels of endemism. These aspects provide the means for comprehensive entomological surveys and investigations of original host/pathogen interactions. In addition, islands are interconnected through discrete anthropogenic and non-anthropogenic exchanges: whilst islands maintain a substantial level of human and domestic animal exchange with other neighbouring or distant territories, they also comprise dispersal and migratory pathways of volant organisms (insects, birds and bats). Hence, both anthropogenic and non-anthropogenic exchanges in island systems are easier to identify and investigate than in continuous, continental systems. Finally, island ecosystems tend to be notably simpler, more prone to invasive taxa and, therefore, easier to document the colonization or displacement of vector species. These different aspects are presented and overlaid upon the spread of arboviruses within two distinct insular systems: islands of Polynesia and the south-western Indian Ocean. The former have been repeatedly affected by Dengue fever epidemics, while the latter recently suffered four successive epidemics, probably of east African origin, three of which involved the emerging viruses Chikungunya, Rift Valley and Dengue fever. Here, we review some new insights into arboviral spread and evolution associated with investigations that followed these epidemics, as well as several aspects that make insular ecosystems favourable to the investigation of arboviral transmission and spread. |
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article |
topic_facet |
L73 - Maladies des animaux L72 - Organismes nuisibles des animaux virus des animaux évolution écosystème île épidémiologie transmission des maladies vecteur de maladie distribution spatiale endémie étude de cas migration animale adaptation http://aims.fao.org/aos/agrovoc/c_32849 http://aims.fao.org/aos/agrovoc/c_2745 http://aims.fao.org/aos/agrovoc/c_2482 http://aims.fao.org/aos/agrovoc/c_3962 http://aims.fao.org/aos/agrovoc/c_2615 http://aims.fao.org/aos/agrovoc/c_2329 http://aims.fao.org/aos/agrovoc/c_8164 http://aims.fao.org/aos/agrovoc/c_36230 http://aims.fao.org/aos/agrovoc/c_16416 http://aims.fao.org/aos/agrovoc/c_24392 http://aims.fao.org/aos/agrovoc/c_32926 http://aims.fao.org/aos/agrovoc/c_117 http://aims.fao.org/aos/agrovoc/c_3828 http://aims.fao.org/aos/agrovoc/c_2442 |
author |
Tortosa, Pablo Pascalis, Hervé Guernier, Vanina Cardinale, Eric Le Corre, Matthieu Goodman, Steven M. Dellagi, Koussay |
author_facet |
Tortosa, Pablo Pascalis, Hervé Guernier, Vanina Cardinale, Eric Le Corre, Matthieu Goodman, Steven M. Dellagi, Koussay |
author_sort |
Tortosa, Pablo |
title |
Deciphering arboviral emergence within insular ecosystems |
title_short |
Deciphering arboviral emergence within insular ecosystems |
title_full |
Deciphering arboviral emergence within insular ecosystems |
title_fullStr |
Deciphering arboviral emergence within insular ecosystems |
title_full_unstemmed |
Deciphering arboviral emergence within insular ecosystems |
title_sort |
deciphering arboviral emergence within insular ecosystems |
url |
http://agritrop.cirad.fr/564443/ http://agritrop.cirad.fr/564443/1/document_564443.pdf |
work_keys_str_mv |
AT tortosapablo decipheringarboviralemergencewithininsularecosystems AT pascalisherve decipheringarboviralemergencewithininsularecosystems AT guerniervanina decipheringarboviralemergencewithininsularecosystems AT cardinaleeric decipheringarboviralemergencewithininsularecosystems AT lecorrematthieu decipheringarboviralemergencewithininsularecosystems AT goodmanstevenm decipheringarboviralemergencewithininsularecosystems AT dellagikoussay decipheringarboviralemergencewithininsularecosystems |
_version_ |
1792498202803437568 |