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On the Range of Action of Adult culex pipiens s.l.

Journal of Biosciences and Medicines 2024年第3期12卷 113-121页

作者： Maria da Conceição Proença Maria Teresa Rebelo Department of Physics and MARE-Ulisboa Marine and Environmental Sciences Centre & ARNET Aquatic Research Infrastructure Network Associated Laboratory Faculty of Sciences University of Lisbon Lisbon Portugal Department of Animal Biology and CEsAM_Ciências Centre for Environmental and Marine Studies Faculty of Sciences University of Lisbon Lisbon Portugal

Mosquitoes are an interesting topic due to their medical importance, as they play an active role in the transmission of many pathogens and parasites, acting as vectors for various pathologies that are deadly to humans, such as dengue, yellow fever, chikungunya, West Nile virus, encephalitis and malaria, among many others that are less common. In terms of morbidity and mortality caused by vector-borne diseases, mosquitoes are the most dangerous animals for humanity and, although they also play a role in the ecosystem as a food source for other organisms, their importance for public health cannot be overlooked. As highly efficient vectors, they put more than three billion people at risk, mainly in tropical and subtropical regions as well as in Europe, since heat waves and flooding are becoming more frequent and severe, and summers are getting longer and warmer, accelerating mosquito development, biting rates, and the incubation of the pathogens within their bodies. Female mosquitoes bite to acquire proteins for the development of their ovaries and eggs and, in the process, acquire pathogens and/or parasites from one vertebrate host and transmit them to another, usually after a short period of replication. Three of their four life stages are lived in still freshwater, so it is crucial to understand their range of action when they reach adulthood and leave the water, in order to plan and implement local prevention measures. A set of georeferenced abundance data collected in mainland Portugal over seven years was.l.nked to cartographed water bodies in a geographic information system to estimate the distances at which culex pipiens s.l. had a significant presence, with criteria based on the size of the catches. The res.l. allows for an estimate of the fly range of those mosquitoes, which can be used to focus countermeasures.

关键词： Mosquito Fly Distance Vector-Borne Diseases culex pipiens s.l. Geographic Information systems

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Climatic and Physiographic Variables to Evaluate culex pipiens s.l. Risk and Habitat

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Journal of Geoscience and Environment Protection 2022年第8期10卷 1-8页

作者： Maria da Conceição Proença Maria João Alves Maria Teresa Rebelo MARE—Marine and Environmental sciences Centre & ARNET Aquatic Research Infrastructure Network Associated Laboratory Faculty of Sciences University of Lisbon Lisbon Portugal Department of Physics Faculty of Sciences University of Lisbon Lisbon Portugal National Health Institute Doutor Ricardo Jorge (INsA) &#193 guas de Moura Portugal CEsAM-Ciências—Centre for Environmental and Marine studies Faculty of Sciences University of Lisbon Lisbon Portugal Department of Animal Biology Faculty of Sciences University of Lisbon Lisbon Portugal

Using a geographic information system (GIs), the relations between a georeferenced data set of culex pipiens s.l. collected in Portugal mainland during seven years (2006-2012) and meteorological and physiographic parameters are evaluated. This work is one of the res.l.s of a long-term surveillance program of pernicious insects that act as vectors of various diseases;its focus is on the possibility of prevention that can be achieved with abundance data. The focus on culex pipiens is justified by its abundance and its competence as a vector for numerous health issues. The cumulative distribution of monthly captures by each meteorological parameter allows to compute thresholds corresponding to mosquito massive presence related to 90% of the captures. Using the weather parameters measured in the network of weather stations across the country, a monthly average of each parameter of interest (temperature, humidity, etc.) is computed and an interpolation of the res.l.s is made to produce raster maps corresponding to each month. The previously obtained thresholds are applied to each map, producing spatial masks with the relevant zones for each parameter. The intersection of the various masks for each month shows the most dens.l. populated area of culex, and the ensemble allows us to observe the evolution of mosquito presence through the critical season, which is from May to October at these latitudes. In parallel, mosquito abundance data are related to physiographic parameters. The relative distribution of female mosquitoes across.l.nd cover types in each month allows identifying which classes and seasons are most relevant. Orthometric altitude related to the presence of 90% of the catches shows the limits reached by mosquitoes in each month. The res.l.s are applied to the previously obtained climate envelopes, delimiting critical areas where the level of risk of transmission of the pathogens for which culex pipiens is a competent vector is high and countermeasures should b

关键词： Vector-Borne Diseases Transmission Risk culex pipiens s.l. GIs Global Changes

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