Browsing by Autor "Ana Laura Carbajal-de-la-Fuente"

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Evolutionary relationships based on genetic and phenetic characters between Triatoma maculata, Triatoma pseudomaculata and morphologically related species (Reduviidae: Triatominae)
(Elsevier BV, 2007) Silvia Menezes dos Santos; Catarina Macedo Lopes; Jean Dujardin; Francisco Panzera; Ruben Pérez; Ana Laura Carbajal-de-la-Fuente; R. S. Pacheco; François Noireau
Misidentification of two Brazilian triatomes, Triatoma arthurneivai and Triatoma wygodzinskyi , revealed by geometric morphometrics
(Wiley, 2010) Ana Laura Carbajal-de-la-Fuente; Nicolás Jaramillo; José M.S. Barata; François Noireau; Liléia Diotaiuti
Triatoma arthurneivai Lent & Martins and Triatoma wygodzinskyi Lent (Hemiptera: Reduviidae) are two Brazilian species found in the sylvatic environment. Several authors may have misidentified T. arthurneivai and consequently published erroneous information. This work reports the use of geometric morphometric analysis on wings in order to differentiate T. arthurneivai and T. wygodzinskyi, and thus to detect possible misidentifications. Triatomines collected from the field in the states of Minas Gerais and São Paulo, and from laboratory colonies, were used. Analyses show a clear differentiation between specimens of T. arthurneivai and T. wygodzinskyi. This indicates that T. arthurneivai populations from São Paulo state were misidentified and should be considered as T. wygodzinskyi. This study also suggests that T. arthurneivai is an endemic species from Serra do Cipó, Minas Gerais state.
Phenotypic variability in traits related to flight dispersal in the wing dimorphic species Triatoma guasayana
(BioMed Central, 2023) Gisel V. Gigena; Claudia Rodríguez; Federico G. Fiad; María Laura Hernández; Ana Laura Carbajal-de-la-Fuente; Romina V. Piccinali; Paz Sánchez Casaccia; Antonieta Rojas de Árias; Patricia A. Lobbia; Luciana Abrahan
The association between the geographic distribution of Triatoma pseudomaculata and Triatoma wygodzinskyi (Hemiptera: Reduviidae) with environmental variables recorded by remote sensors
(Elsevier BV, 2008) Ana Laura Carbajal-de-la-Fuente; Ximena Porcasi; François Noireau; Liléia Diotaiuti; David E. Gorla
What is the ecoepidemiological and sociodemographic status of Chagas disease in an urban area of San Juan, Argentina?
(2024) Paz Sánchez-Casaccia; Julieta Nattero; Florencia Cano; Leonardo M. Díaz-Nieto; Liliana Salvá; Sergio Meli; Ana Laura Carbajal-de-la-Fuente
Chagas disease is caused by the parasite Trypanosoma cruzi. In Argentina, Triatoma infestans is its main vector. Its occurrence has been documented in rural areas, although currently also in urban areas of the Northwest and Cuyo, including San Juan(1,2,3). With the aim of conducting an ecoepidemiological study in an urban setting, a cross-sectional study was carried out in Villa San Roque, Rivadavia Department, San Juan, during October 2022. Entomological assessments, sociodemographic and social practices surveys were conducted on adult residents of the dwellings that allowed access. High participation was observed (89%, n = 179/201 dwellings assessed), mainly women (57%). 71% of the respondents had an age range between 18-64 years, while the remaining 29% were over 65 years of age. 90% were born in the province of San Juan and 81% were born in urban areas. In the houses infested by T. infestans (n = 20), the most frequent wall materials were ceramic bricks and adobe (40% in both cases); while 65% of the roofs were wood. 55% of the participants had secondary education, the most frequent work activity was self-employment (45%), 50% had applied some insecticide in the last year and 70% had domestic animals. The results show that we are dealing with a complex socio-environmental phenomenon that develops in a densely populated environment. Further studies are essential to better understand the epidemiological status in the urban area and its associated characteristics(4,5)
Where you live shapes who you are: morphological changes in urban Triatoma infestans
(Frontiers Media, 2025) Romina V. Piccinali; Julieta Nattero; Florencia Cano; Paz Sánchez-Casaccia; Ana Laura Carbajal-de-la-Fuente
Urban T. infestans exhibit size reductions, aligning with Schofield's simplification hypothesis and possibly influenced by the Urban Heat Island effect. Shape changes, more pronounced in wings and pronota, suggest other influences beyond the rural-urban gradient, potentially including developmental plasticity, flight demands, and genetic drift. These findings underscore the need for urban-specific Chagas disease control strategies and further research on the evolutionary dynamics of T. infestans in urban environments.