Browsing by Subject "Aedes albopictus"

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    Aedes albopictus Skuse, 1884 (Diptera: Culicidae) y culícidosasociados en áreas antropizadas de Belém-PA (Brasil),municipio del este amazónico
    (Universidad de Murcia. Servicio de publicaciones, 2024) Monteiro Moy, Karen; Garcia Rosario, Ingrid Nazaré; Holanda De Souza, Cinthia; Rodrigues de Oliveira, Tatiane; Kirchgatter, Karin; Da Silva, Ivoneide Maria; Rodriguez Málaga, Sergio
    El primer registro de Aedes albopictus en el Estado de Pará, en la Amazonía brasileña, se realizó en 2003. Este estudio tuvo como objetivo describir la fauna de culícidos y la abundancia de Ae. albopictus en cuatro áreas con diferentes grados de antropización en la ciudad de Belém-PA. Para ello, se colectaron larvas en criaderos naturales, comprobando que Ae. albopictus correspondió al 63,4% de los mosquitos colectados, siendo predominante en las áreas más antropizadas. También conseguimos describir dos haplotipos derivados de secuencias parciales del gen COI de 16 mosquitos del área de mayor grado de antropización, los cuales se agrupan con ejemplares de países tropicales y de clima templado, respectivamente. Nuestros resultados demuestran la adaptación de Ae. albopictus a las áreas urbanas de la región amazónica.
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    Multiple invasions, Wolbachia and human‑aided transport drive the genetic variability of Aedes albopictus in the Iberian Peninsula.
    (Nature Research, 2022) Lucati, Federica; Delacour, Sarah; Palmer, John R.B.; Caner, Jenny; Oltra, Aitana; Paredes‑Esquivel, Claudia; Mariani, Simone; Escartin, Santi; Roiz, David; Collantes, Francisco; Bengoa, Mikel; Moltalvo, Tomás; Delgado, Juan Antonio; Eritja, Roger; Lucientes, Javier; Albó, Andreu; Bartomeus, Frederic; Ventura, Marc; Zoología y Antropología Física
    The Asian tiger mosquito, Aedes albopictus, is one of the most invasive species in the world. Native to the tropical forests of Southeast Asia, over the past 30 years it has rapidly spread throughout tropical and temperate regions of the world. Its dramatic expansion has resulted in public health concerns as a consequence of its vector competence for at least 16 viruses. Previous studies showed that Ae. albopictus spread has been facilitated by human-mediated transportation, but much remains unknown about how this has affected its genetic attributes. Here we examined the factors that contributed to shaping the current genetic constitution of Ae. albopictus in the Iberian Peninsula, where the species was first found in 2004, by combining population genetics and Bayesian modelling. We found that both mitochondrial and nuclear DNA markers showed a lack of genetic structure and the presence of worldwide dominant haplotypes, suggesting regular introductions from abroad. Mitochondrial DNA showed little genetic diversity compared to nuclear DNA, likely explained by infection with maternally transmitted bacteria of the genus Wolbachia. Multilevel models revealed that greater mosquito fluxes (estimated from commuting patterns and tiger mosquito population distribution) and spatial proximity between sampling sites were associated with lower nuclear genetic distance, suggesting that rapid short- and medium-distance dispersal is facilitated by humans through vehicular traffic. This study highlights the significant role of human transportation in shaping the genetic attributes of Ae. albopictus and promoting regional gene flow, and underscores the need for a territorially integrated surveillance across scales of this disease-carrying mosquito.