Assessing the Influence of Native and Invasive Grasses on the Behavior of Aedes aegypti in South Texas

Author

Emily Medelez, The University of Texas Rio Grande Valley

Date of Award

12-1-2024

Document Type

Thesis

Degree Name

Master of Science (MS)

Department

Biology

First Advisor

Pushpa Soti

Second Advisor

Christopher Vitek

Third Advisor

Sarah Maestas

Abstract

Invasive grasses in South Texas can have widespread negative effects, displacing native species, reducing biodiversity, and posing risks to public health. These grasses may flourish in moist, shaded environments, which not only support their growth but also creates habitats favorable for mosquito activity. This can increase the population and alter the behavior of mosquitoes, potentially raising the risk of disease transmission. In this thesis, I look at the behavior of mosquito species Aedes aegypti, primary vector of the yellow fever virus. I analyzed the influence of oviposition, flight and resting behaviors. I tested the relative attraction of Aedes mosquitoes to infusions made from native and invasive grasses. Field and laboratory studies were done to assess the influence of native and invasive grasses on the behavior of Aedes aegypti. Field studies consisted of oviposition choice assays with wild mosquitoes and the laboratory studies involved a choice assay to observe male and female mosquito resting and flight behavior under controlled conditions. The findings from these studies will provide deeper insights into how mosquitoes interact with both native and invasive grasses, informing strategies to protect biodiversity and public health in areas affected by invasive species.

Comments

Copyright 2024 Emily Medelez. https://proquest.com/docview/3153375072

Recommended Citation

Medelez, Emily, "Assessing the Influence of Native and Invasive Grasses on the Behavior of Aedes aegypti in South Texas" (2024). Theses and Dissertations. 1628.
https://scholarworks.utrgv.edu/etd/1628