Browsing by Author "85ee8f0f-eba4-4075-8abd-0c3248138b47"
Now showing items 1-20 of 36
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Cattan Ayala, Pedro; Pinochet, Angélica; Botto Mahan, Carezza; Acuña, Mariana I.; Canals Lambarri, Mauricio (Fundacao Oswaldo Cruz, 2002)Mepraia spinolai is a silvatic species of Triatominae which prefers microhabitats near to or in rock piles. It is also able to maintain similar or higher size populations near houses. The density of bugs in quarries near ...
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Rozas, Marlene; Botto Mahan, Carezza; Coronado, Ximena; Ortíz, Sylvia; Cattan Ayala, Pedro; Solari Illescas, Aldo (2007)Epidemiologic evidence suggests a preferential association of Trypanosoma cruzi genotypes TCI and TCII with marsupials and placental mammals, respectively. We identify T. cruzi genotypes from 117 infected mammals. Minicircle ...
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Bacigalupo, Antonella; Segovia, Verónica; García, Alejandro; Botto Mahan, Carezza; Ortíz, Sylvia; Solari Illescas, Aldo; Acuña Retamar, Mariana; Torres Pérez, Fernando; Cattan Ayala, Pedro (2012)In Chile, the main vector of Chagas disease, Triatoma infestans, is under control after insecticide spraying. However, it has been found colonizing wild habitats. This study evaluated Trypanosoma cruzi infection of sylvatic ...
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Contardo, Juan; Grimm Seyfarth, Annegret; Cattan Ayala, Pedro; Schuttler, Elke (Springer, 2020)Domestic dogs (Canis familiaris) are the most common carnivore species in natural ecosystems worldwide. They are of considerable concern for wildlife conservation, particularly in the absence of predators. However, we are ...
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Chacón, F.; Bacigalupo, A.; Quiroga, J. F.; Ferreira, A.; Cattan Ayala, Pedro; Ramírez Toloza, Galia (Elsevier, 2016)American trypanosomiasis is a chronic disease transmitted mainly by vectors. The hematophagous triatomine vectors transmit Trypanosoma cruzi to a wide variety of mammals, which usually are their food source. This study ...
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Botto Mahan, Carezza; Cattan Ayala, Pedro; Canals Lambarri, Mauricio (2002)In spite of extensive evidence showing an association between host stimuli and insect finding behaviour, the importance of carbon dioxide in attracting Triatominae is not entirely understood. We assessed the potential of ...
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Bacigalupo, Antonella; José, M.; García C., Alejandro; Javier Hidalgo, C.; Galuppo Gaete, Stephania; Cattan Ayala, Pedro (2006)Background: Insects of the subfamily triatominae are the biological vectors of Trypanosoma cruzi, the causal agent of Chagas disease. Aim: To search for wild colonies of triatomines in the Metropolitan Region of Chile. ...
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Alaniz, Alberto J.; Carvajal, Mario A.; Bacigalupo, Antonella; Cattan Ayala, Pedro (Cambridge University Press, 2019)Zika virus (ZIKV) is an arbovirus transmitted mainly by Aedes aegypti mosquitoes. Recent scientific evidence on Culex quinquefasciatus has suggested its potential as a vector for ZIKV, which may change the current risk ...
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Landaeta Aqueveque, Carlos; Robles, María D. R.; Cattan Ayala, Pedro (2007)The wild rodent, Abrothrix olivaceus, is a widespread species in Chile using different habitats troughout the territory. Its helminthfauna has been partially studied in wild enviroments in Chile. In this work five nematodes ...
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Granda Rodríguez, Hernán D.; Montes Correa, Andrés Camilo; Jiménez Bolaño, Juan David; Alaniz, Alberto J.; Cattan Ayala, Pedro; Hernáez, Patricio (Amphibian & Reptile Conservation, 2020)Atelopus laetissimus is a bufonid toad that inhabits the mountainous areas of the Sierra Nevada de Santa Marta (SNSM), Colombia. This species is endemic and endangered, so information about its ecology and distribution are ...
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Invasive African clawed frog Xenopus laevis in southern South America: key factors and predictions Lobos, Gabriel; Cattan Ayala, Pedro; Estades Marfán, Cristián; Jaksic, Fabián (Taylor & Francis, 2013)The African clawed frog Xenopus laevis is one of the most widely distributed amphibians in the world. It has invaded an area of approximately 21,200 km2 since its naturalization in Chile in the early 1980s. Currently, ...
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Cattan Ayala, Pedro; Glade, Alfonso A. (1989)Some aspects of the population dynamics of the vicuña Vicugna vicugna were studied using census and field data recorded at the Reserva Nacional Las Vicuñas, I Region, northernmost Chile. Census data and mean values of ...
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Canals Lambarri, Mauricio; Caceres Lillo, Dante; Alvarado Orellana, Sergio; Canals Cifuentes, Andrea; Cattan Ayala, Pedro (Elsevier, 2017)Chagasi disease is a human health problem in Latin America. It is highly prevalent in northern Chile between the Arica-Parinacota and Coquimbo regions, with reported incidence of 3-11/100000 inhabitants and mortality of ...
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Hernández, Jaime; Núñez, Ignacia; Bacigalupo, Antonella; Cattan Ayala, Pedro (2013)Background: Chagas disease is caused by the protozoan Trypanosoma cruzi, which is transmitted to mammal hosts by triatomine insect vectors. The goal of this study was to model the spatial distribution of triatomine species ...
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Coronado, Ximena; Rozas, Marlene; Botto Mahan, Carezza; Ortíz, Sylvia; Cattan Ayala, Pedro; Solari Illescas, Aldo (2009)The sylvatic transmission cycle of Chagas disease in Chile is composed of wild mammals and insects of the genus Mepraia. We determined infection rates and Trypanosoma cruzi genotypes in Mepraia spinolai. We collected 227 ...
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Correa, Juana P.; Bacigalupo, Antonella; Botto Mahan, Carezza; Bucarey Vivanco, Sergio; Cattan Ayala, Pedro; García de Cortázar, Rodrigo; Landaeta Aqueveque, Carlos; Ramírez Estrada, Juan (Wildlife Disease Assoc, Inc., 2017)We report natural infections by pathogenic Leptospira of two rodent species endemic to Chile: the degu (Octodon degus) and Darwin's pericote (Phyllotis darwini). We detected Leptospira DNA in kidney and urine samples taken ...
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Ehrenfeld, Mildred J.; Canals Lambarri, Mauricio; Cattan Ayala, Pedro (Entomological Society of America, 1998)Population parameters of Triatoma spinolai Porter were studied using specimens collected in the north and central region of Chile. Two cohorts of 17 and 44 first instars were maintained at a constant temperature of 28°C ...
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Canals Lambarri, Mauricio; Solís Muñoz, Rigoberto; Valderas, Julio; Ehrenfeld, Mildred; Cattan Ayala, Pedro (Entomological Society of America, 1997)Preferred temperature and activity patterns of Triatoma infestans Klug and Triatoma spinolai Porter were studied, both are vectors of Chagas' disease in Chile. In the laboratory, 24 T. spinolai and 18 T. infestans were ...
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Marín Vial, Paula; González Acuña, Daniel; Celis Diez, Juan L.; Cattan Ayala, Pedro; Guglielmone, Alberto A. (2007)The presence of Ixodes neuquenensis (Ringuelet, Notas Mus la Plata 12:207-216, 1947) (Acari: Ixodidae) parasitizing populations of Dromiciops gliroides Thomas, 1894 (Microbiotheria: Microbiotheriidae) at Chiloé Island ...
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Botto Mahan, Carezza; Bacigalupo Bacigalupo, Antonella; Correa Galaz, Juana; Fonturbel, Francisco E.; Cattan Ayala, Pedro; (The Royal Society, 2020)Vector-borne infectious disease dynamics result mainly from the intertwined effect of the diversity, abundance, and behaviour of hosts and vectors. Most studies, however, have analysed the relationship between host-species ...