Environmental and demographic factors determining the spatial distribution of Triatoma guasayana in peridomestic and semi-sylvatic habitats of rural northwestern Argentina
Triatoma guasayana (Wygodzinsky & Abalos), a sylvatic vector of Chagas' disease, occurs in natural and peridomestic habitats of the dry Chaco region of Argentina, Bolivia and Paraguay. Ten-year retrospective spatial analyses of peridomestic T. guasayana abundance in the rural community of A...
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todo:paper_0269283X_v22_n3_p273_VazquezProkopec2023-10-03T15:14:07Z Environmental and demographic factors determining the spatial distribution of Triatoma guasayana in peridomestic and semi-sylvatic habitats of rural northwestern Argentina Vazquez-Prokopec, G.M. Cecere, M.C. Kitron, U. Gürtler, R.E. Chagas' disease Goats Natural habitat Reinfestation Spatial statistics Vector population clustering abundance Chagas disease demography disease control disease vector GIS goat insect range expansion rural area satellite imagery spatial analysis spatial distribution species occurrence Argentina Chaco [Argentina] South America Cactaceae Capra hircus Triatoma Triatoma guasayana Triatoma guasayana (Wygodzinsky & Abalos), a sylvatic vector of Chagas' disease, occurs in natural and peridomestic habitats of the dry Chaco region of Argentina, Bolivia and Paraguay. Ten-year retrospective spatial analyses of peridomestic T. guasayana abundance in the rural community of Amamá were expanded to the neighbouring community of Trinidad in northwestern Argentina. The distribution of T. guasayana in domiciles, peridomiciles (storerooms, chicken coops and corrals) and natural habitats (bromeliads, dry cacti and logs) around houses (i.e. 'semi-sylvatic' habitats) was analysed. The distribution of the 316 T. guasayana specimens collected in domestic and peridomestic sites during 1993-2002 was significantly clustered in both communities. Searches confirmed that the spatial distribution of semi-sylvatic and peridomestic T. guasayana was determined by the joint effects of the local abundance of goats and the density of semi-sylvatic habitats. The integration of detailed entomological and demographic longitudinal data with geographic information system data, high-resolution satellite imagery, appropriate spatial and temporal analyses and field observations allowed us to infer the underlying processes determining the distribution of T. guasayana in rural communities. This approach may be applied to other sylvatic and peridomestic vectors of Chagas' disease in order to identify high-risk areas for targeted control or environmental management. © 2008 The Authors. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_0269283X_v22_n3_p273_VazquezProkopec |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
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R-134 |
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Chagas' disease Goats Natural habitat Reinfestation Spatial statistics Vector population clustering abundance Chagas disease demography disease control disease vector GIS goat insect range expansion rural area satellite imagery spatial analysis spatial distribution species occurrence Argentina Chaco [Argentina] South America Cactaceae Capra hircus Triatoma Triatoma guasayana |
| spellingShingle |
Chagas' disease Goats Natural habitat Reinfestation Spatial statistics Vector population clustering abundance Chagas disease demography disease control disease vector GIS goat insect range expansion rural area satellite imagery spatial analysis spatial distribution species occurrence Argentina Chaco [Argentina] South America Cactaceae Capra hircus Triatoma Triatoma guasayana Vazquez-Prokopec, G.M. Cecere, M.C. Kitron, U. Gürtler, R.E. Environmental and demographic factors determining the spatial distribution of Triatoma guasayana in peridomestic and semi-sylvatic habitats of rural northwestern Argentina |
| topic_facet |
Chagas' disease Goats Natural habitat Reinfestation Spatial statistics Vector population clustering abundance Chagas disease demography disease control disease vector GIS goat insect range expansion rural area satellite imagery spatial analysis spatial distribution species occurrence Argentina Chaco [Argentina] South America Cactaceae Capra hircus Triatoma Triatoma guasayana |
| description |
Triatoma guasayana (Wygodzinsky & Abalos), a sylvatic vector of Chagas' disease, occurs in natural and peridomestic habitats of the dry Chaco region of Argentina, Bolivia and Paraguay. Ten-year retrospective spatial analyses of peridomestic T. guasayana abundance in the rural community of Amamá were expanded to the neighbouring community of Trinidad in northwestern Argentina. The distribution of T. guasayana in domiciles, peridomiciles (storerooms, chicken coops and corrals) and natural habitats (bromeliads, dry cacti and logs) around houses (i.e. 'semi-sylvatic' habitats) was analysed. The distribution of the 316 T. guasayana specimens collected in domestic and peridomestic sites during 1993-2002 was significantly clustered in both communities. Searches confirmed that the spatial distribution of semi-sylvatic and peridomestic T. guasayana was determined by the joint effects of the local abundance of goats and the density of semi-sylvatic habitats. The integration of detailed entomological and demographic longitudinal data with geographic information system data, high-resolution satellite imagery, appropriate spatial and temporal analyses and field observations allowed us to infer the underlying processes determining the distribution of T. guasayana in rural communities. This approach may be applied to other sylvatic and peridomestic vectors of Chagas' disease in order to identify high-risk areas for targeted control or environmental management. © 2008 The Authors. |
| format |
JOUR |
| author |
Vazquez-Prokopec, G.M. Cecere, M.C. Kitron, U. Gürtler, R.E. |
| author_facet |
Vazquez-Prokopec, G.M. Cecere, M.C. Kitron, U. Gürtler, R.E. |
| author_sort |
Vazquez-Prokopec, G.M. |
| title |
Environmental and demographic factors determining the spatial distribution of Triatoma guasayana in peridomestic and semi-sylvatic habitats of rural northwestern Argentina |
| title_short |
Environmental and demographic factors determining the spatial distribution of Triatoma guasayana in peridomestic and semi-sylvatic habitats of rural northwestern Argentina |
| title_full |
Environmental and demographic factors determining the spatial distribution of Triatoma guasayana in peridomestic and semi-sylvatic habitats of rural northwestern Argentina |
| title_fullStr |
Environmental and demographic factors determining the spatial distribution of Triatoma guasayana in peridomestic and semi-sylvatic habitats of rural northwestern Argentina |
| title_full_unstemmed |
Environmental and demographic factors determining the spatial distribution of Triatoma guasayana in peridomestic and semi-sylvatic habitats of rural northwestern Argentina |
| title_sort |
environmental and demographic factors determining the spatial distribution of triatoma guasayana in peridomestic and semi-sylvatic habitats of rural northwestern argentina |
| url |
http://hdl.handle.net/20.500.12110/paper_0269283X_v22_n3_p273_VazquezProkopec |
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