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Does Local Adaptation Impact on the Distribution of Competing Aedes Disease Vectors?

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Smithsonian Tropical Research Institute, P.O. Box 0843-03092, Balboa Ancon, Panama
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Instituto de Investigaciones Científicas y Servicios de Alta Tecnología, P.O. Box 0843-01103, Panama City, Panama
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Programa Centroamericano de Maestría en Entomología, Universidad de Panamá, P.O. Box 0843-01103, Panama City, Panama
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Authors to whom correspondence should be addressed.
Academic Editor: Anouschka Hof
Climate 2021, 9(2), 36; https://doi.org/10.3390/cli9020036
Received: 16 January 2021 / Revised: 7 February 2021 / Accepted: 8 February 2021 / Published: 22 February 2021
(This article belongs to the Special Issue Impacts of Climate Change on Species)
Ae. (Stegomyia) aegypti L. and Aedes (Stegomyia) albopictus Skuse mosquitoes are major arboviral disease vectors in human populations. Interspecific competition between these species shapes their distribution and hence the incidence of disease. While Ae. albopictus is considered a superior competitor for ecological resources and displaces its contender Ae. aegypti from most environments, the latter is able to persist with Ae. albopictus under particular environmental conditions, suggesting species occurrence cannot be explained by resource competition alone. The environment is an important determinant of species displacement or coexistence, although the factors underpinning its role remain little understood. In addition, it has been found that Ae. aegypti can be adapted to the environment across a local scale. Based on data from the Neotropical country of Panama, we present the hypothesis that local adaptation to the environment is critical in determining the persistence of Ae. aegypti in the face of its direct competitor Ae. albopictus. We show that although Ae. albopictus has displaced Ae. aegypti in some areas of Panama, both species coexist across many areas, including regions where Ae. aegypti appear to be locally adapted to dry climate conditions and less vegetated environments. Based on these findings, we describe a reciprocal transplant experiment to test our hypothesis, with findings expected to provide fundamental insights into the role of environmental variation in shaping the landscape of emerging arboviral disease. View Full-Text
Keywords: local adaptation; genomic variation; spatial distributions; biological competition; Ae. mosquitoes; climate change local adaptation; genomic variation; spatial distributions; biological competition; Ae. mosquitoes; climate change
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MDPI and ACS Style

Bennett, K.L.; McMillan, W.O.; Loaiza, J.R. Does Local Adaptation Impact on the Distribution of Competing Aedes Disease Vectors? Climate 2021, 9, 36. https://doi.org/10.3390/cli9020036

AMA Style

Bennett KL, McMillan WO, Loaiza JR. Does Local Adaptation Impact on the Distribution of Competing Aedes Disease Vectors? Climate. 2021; 9(2):36. https://doi.org/10.3390/cli9020036

Chicago/Turabian Style

Bennett, Kelly L.; McMillan, William O.; Loaiza, Jose R. 2021. "Does Local Adaptation Impact on the Distribution of Competing Aedes Disease Vectors?" Climate 9, no. 2: 36. https://doi.org/10.3390/cli9020036

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