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Mosquito Larval Habitats, Land Use, and Potential Malaria Risk in Northern Belize from Satellite Image AnalysesThe distribution of Anopheles mosquito habitats and land use in northern Belize is examined with satellite data. -A land cover classification based on multispectral SPOT and multitemporal Radarsat images identified eleven land cover classes, including agricultural, forest, and marsh types. Two of the land cover types, Typha domingensis marsh and flooded forest, are Anopheles vestitipennis larval habitats. Eleocharis spp. marsh is the larval habitat for Anopheles albimanus. Geographic Information Systems (GIS) analyses of land cover demonstrate that the amount of T-ha domingensis in a marsh is positively correlated with the amount of agricultural land in the adjacent upland, and negatively correlated with the amount of adjacent forest. This finding is consistent with the hypothesis that nutrient (phosphorus) runoff from agricultural lands is causing an expansion of Typha domingensis in northern Belize. This expansion of Anopheles vestitipennis larval habitat may in turn cause an increase in malaria risk in the region.
Document ID
20040081105
Acquisition Source
Goddard Space Flight Center
Document Type
Preprint (Draft being sent to journal)
Authors
Pope, Kevin
(Geo Eco Arc Research United States)
Masuoka, Penny
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Rejmankova, Eliska
(California Univ. Davis, CA, United States)
Grieco, John
(Uniformed Services Univ. of the Health Sciences United States)
Johnson, Sarah
(California Univ. Davis, CA, United States)
Roberts, Donald
(Uniformed Services Univ. of the Health Sciences United States)
Date Acquired
August 21, 2013
Publication Date
January 1, 2004
Subject Category
Earth Resources And Remote Sensing
Funding Number(s)
CONTRACT_GRANT: NIAID-R01-AI49726
CONTRACT_GRANT: NAG5-12593
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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