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Accueil du site → Doctorat → Espagne → 2020 → Distribution, dispersion and blood-feeding preferences of Phlebotomus spp. (Diptera, Psychodidae) in microenvironments in southeast Spain : implications for transmission of Leishmania infantum

Universidad de Murcia (2020)

Distribution, dispersion and blood-feeding preferences of Phlebotomus spp. (Diptera, Psychodidae) in microenvironments in southeast Spain : implications for transmission of Leishmania infantum

Muñoz Hernández, Clara

Titre : Distribution, dispersion and blood-feeding preferences of Phlebotomus spp. (Diptera, Psychodidae) in microenvironments in southeast Spain : implications for transmission of Leishmania infantum

Distribución, dispersión y preferencias alimentarias de Phlebotomus spp. (Diptera, Psychodidae) en microambientes naturales en el sureste de España : implicaciones en la transmisión de Leishmania infantum

Auteur : Muñoz Hernández, Clara

Université de soutenance : Universidad de Murcia

Grade : Doctor en Ciencias Veterinarias con Mención Internacional 2020

Résumé partiel
Phlebotomine sand flies are hematophagous arthropods vectors of Leishmania spp., responsible for human and animal leishmaniasis. This PhD dissertation focuses on studying the ecology of sand flies and the epidemiology of leishmaniasis in rural and periurban areas of Murcia Region. Chapter 1 presents a study of the relationship between sand fly density and sticky-interception and CO2-baited light-attraction trap position with respect to distance to the ground and to vertical surfaces, in a periurban dog kennel. A total of 692 sand flies were collected, including Phlebotomus papatasi (52%), P. perniciosus (32%), Sergentomyia minuta (15%) and P. ariasi (<1%). An inverse association was detected particularly for sticky traps, but to a lesser extent for CO2-light traps. The latter indicates a greater margin for positioning attraction traps, which may be advantageous to avoid animal interference. Chapter 2 describes sand fly abundance and distribution with respect to distance to animal groups, in three sheep farms and one dog kennel in a rural area. Using sticky and light traps 8,506 sand flies were collected, including P. perniciosus (62%), Phlebotomus sergenti (23%), P. papatasi (8%), S. minuta (6%) and P. ariasi (1%). The number of sand flies was greater inside the premises and close to the animals for all species except S. minuta, which was more abundant outside, far from the farms and the kennel. Moreover, P. perniciosus abundance was gender-dependent and whilst females concentrated closest to the animals, males were more abundant in adjacent farm and kennel storage rooms.

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