Identifying priority sites for mosquito control to protect Maui's endemic forest birds
Date
2024
Authors
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Abstract
Infectious disease is a major emerging cause of species decline as rising global temperatures drive mosquito vectors into cooler, higher elevation habitats that were previously disease-free. The effects of these range shifts are particularly concerning for endemic forest birds on the island of Maui, Hawai'i, where seldom habitat remains at these altitudes. Fortunately, preliminary applications of BTi larvicide have been successful in killing mosquito larvae within treatment areas, and plans to continue application along with other forms of mosquito control are being implemented. Due to the novelty of its use in conservation, this study identifies the suitability of sites for the aerial application of BTi to control mosquito populations and reduce the transmission of avian malaria among Maui's endemic forest birds. Spatial data on mosquito larval densities, bird populations, and environmental conditions are analyzed to create predictions of where BTi aerial application might be most effective, with areas managed by The Nature Conservancy and the federal and state government scoring particularly high in suitability. The findings of this study are intended for academic purposes and must be reviewed by experts in the field if used to inform management decisions.
Description
Department of Biology, Colorado State University, Zoology, University Honors Program.
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Subject
biology
ecology
conservation
spatial analysis
Hawaii
Maui
disease
mosquito
ornithology
birds