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Abstract:

Wing geometric morphometry was used to study the spatial structuring of populations of Triatoma infestans from different villages, ecotopes, and sites within a village in northwestern Argentina. A total of 308 male and 197 female wings of T. infestans collected from peridomestic and domestic ecotopes in March 2000 was analyzed. On average, female bugs had a significantly larger wing size than males. Triatomines collected from domiciles or structures associated with chickens had larger wings than bugs collected from goat or pig corrals. The wing size of bugs did not differ significantly between villages. Discriminant analyses of wing shape showed significant divergence between villages, ecotopes, and individual collection sites. The study of metric variation of males between sites belonging to the same ecotope also revealed significant heterogeneity. Indeed, within the same section of the village the difference between two goat corrals was sometimes greater than that between neighboring goat and pig corrals. Thus, morphometric heterogeneity within villages may be the result not only of ecotope and host associations, but also of physical isolation between subunits. The strong structuring of T. infestans populations in the study area indicates that recolonization could be traced back to a small geographic source.

Registro:

Documento: Artículo
Título:Spatial structuring of Triatoma infestans (Hemiptera, Reduviidae) populations from Northwestern Argentina using wing geometric morphometry
Autor:Schachter-Broide, J.; Dujardin, J.-P.; Kitron, U.; Gürtler, R.E.
Filiación:Lab. de Eco-Epidemiología, Dpto. de Ecologia, Genet. Y Evol., Ciudad Universitaria, C1428EHA, Buenos Aires, Argentina
Unité Mixte de Recherche, Inst. Rech. Pour le Developpment, Ctr. Natl. de Recherche Scientifique, Montpellier, France
College of Veterinary Medicine, University of Illinois, Urbana-Champaign, IL 61801, United States
Palabras clave:Geometric morphometry; Isometric size; Population structure; Shape; Triatoma infestans; Animalia; Capra hircus; Gallus gallus; Hemiptera; Reduviidae; Sus scrofa; Triatoma; Triatoma infestans; Triatoma infestans
Año:2004
Volumen:41
Número:4
Página de inicio:643
Página de fin:649
DOI: http://dx.doi.org/10.1603/0022-2585-41.4.643
Título revista:Journal of Medical Entomology
Título revista abreviado:J. Med. Entomol.
ISSN:00222585
CODEN:JMENA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00222585_v41_n4_p643_SchachterBroide

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Citas:

---------- APA ----------
Schachter-Broide, J., Dujardin, J.-P., Kitron, U. & Gürtler, R.E. (2004) . Spatial structuring of Triatoma infestans (Hemiptera, Reduviidae) populations from Northwestern Argentina using wing geometric morphometry. Journal of Medical Entomology, 41(4), 643-649.
http://dx.doi.org/10.1603/0022-2585-41.4.643
---------- CHICAGO ----------
Schachter-Broide, J., Dujardin, J.-P., Kitron, U., Gürtler, R.E. "Spatial structuring of Triatoma infestans (Hemiptera, Reduviidae) populations from Northwestern Argentina using wing geometric morphometry" . Journal of Medical Entomology 41, no. 4 (2004) : 643-649.
http://dx.doi.org/10.1603/0022-2585-41.4.643
---------- MLA ----------
Schachter-Broide, J., Dujardin, J.-P., Kitron, U., Gürtler, R.E. "Spatial structuring of Triatoma infestans (Hemiptera, Reduviidae) populations from Northwestern Argentina using wing geometric morphometry" . Journal of Medical Entomology, vol. 41, no. 4, 2004, pp. 643-649.
http://dx.doi.org/10.1603/0022-2585-41.4.643
---------- VANCOUVER ----------
Schachter-Broide, J., Dujardin, J.-P., Kitron, U., Gürtler, R.E. Spatial structuring of Triatoma infestans (Hemiptera, Reduviidae) populations from Northwestern Argentina using wing geometric morphometry. J. Med. Entomol. 2004;41(4):643-649.
http://dx.doi.org/10.1603/0022-2585-41.4.643