Impact of Land-use Change on Dengue and Malaria in Northern Thailand |
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Authors: | Sophie O Vanwambeke Eric F Lambin Markus P Eichhorn Stéphane P Flasse Ralph E Harbach Linda Oskam Pradya Somboon Stella van Beers Birgit H B van Benthem Cathy Walton Roger K Butlin |
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Institution: | (1) Department of Geography, Université Catholique de Louvain, Place Pasteur, 3, 1348 Louvain-la-Neuve, Belgium;(2) School of Biology, University of Nottingham, Nottingham, UK;(3) Flasse Consulting, Maidstone, UK;(4) Department of Entomology, The Natural History Museum, London, UK;(5) Biomedical Research, Royal Tropical Institute, Amsterdam, The Netherlands;(6) Department of Parasitology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand;(7) Faculty of Life Sciences, University of Manchester, Manchester, UK;(8) Department of Animal and Plant Sciences, The University of Sheffield, Sheffield, UK |
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Abstract: | Land-use change, a major constituent of global environmental change, potentially has significant consequences for human health
in relation to mosquito-borne diseases. Land-use change can influence mosquito habitat, and therefore the distribution and
abundance of vectors, and land use mediates human–mosquito interactions, including biting rate. Based on a conceptual model
linking the landscape, people, and mosquitoes, this interdisciplinary study focused on the impacts of changes in land use
on dengue and malaria vectors and dengue transmission in northern Thailand. Extensive data on mosquito presence and abundance,
land-use change, and infection risk determinants were collected over 3 years. The results of the different components of the
study were then integrated through a set of equations linking land use to disease via mosquito abundance. The impacts of a
number of plausible scenarios for future land-use changes in the region, and of concomitant behavioral change were assessed.
Results indicated that land-use changes have a detectable impact on mosquito populations and on infection. This impact varies
according to the local environment but can be counteracted by adoption of preventive measures. |
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Keywords: | integrated model land-use change mosquito-borne diseases dengue malaria Thailand |
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