2023 Early Hearing Detection & Intervention Conference
March 5-7, 2023 • Cincinnati, OH
5/21/2018 | 2:30 PM - 2:45 PM | THE MOSQUITO TREE HOLE ECOSYSTEM AS A HYPOXIC REDUCING ENVIRONMENT: IMPLICATIONS FOR VECTOR CONTROL | 330 A
THE MOSQUITO TREE HOLE ECOSYSTEM AS A HYPOXIC REDUCING ENVIRONMENT: IMPLICATIONS FOR VECTOR CONTROL
Mosquitoes are important to human health because of their role as biological vectors for many serious pathogens and parasites causing infection and disease. The Yellow Fever Mosquito, Aedes aegypti, and the Asian Tiger Mosquito, Aedes albopictus, are vectors for the viral diseases Dengue fever, chikungunya, and zika, and utilize containers for larval habitat, including water-filled tree holes. Research on the ecosystem function of these habitats is crucial to understanding population dynamics and adult mosquito production of these and other Aedes species. The tree hole ecosystem is heterotrophic, with trophic processes dependent upon microbially-mediated decomposition of organic detritus and inputs of inorganic nutrients from stemflow water. For growth in this ecosystem, mosquito larvae consume microorganisms. We monitored natural tree holes over a mosquito growth season and showed that the tree hole ecosystem is a stably reducing environment where oxidation reduction potential varies and is associated with electron acceptor input during disturbance events and seasonal changes. We therefore challenge the assumption that tree hole production is nutrient-limited; instead, it is a nutrient-rich environment but hypoxic and with a deficit of electron acceptors to further microbial respirations and decomposition.
- Microbial
- Sediment
- Disease Ecology
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Presenters/Authors
Jennifer Kirk
(), Michigan State University, kirkjen1@msu.edu;
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Kazem Kashefi
(), Michigan State University, kashefi@msu.edu;
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Edward Walker
(), Michigan State University, walker@msu.edu;
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