Aedes aegypti is an invasive mosquito that has become established throughout the urban landscapes in Arizona and Sonora, Mexico. A native of the tropics, the urban landscape facilitates its survival in the arid desert region. We conducted field collections and analyzed mosquito surveillance data to better understand the primary anthropogenic drivers of its abundance in southern Arizona and northern Mexico.
Changes in aquifer storage derived from microgravity and water level monitoring in the Tucson Active Management Area
Margaret Snyder, Hydrologist, Tucson Water
Libby Kahler, Hydrologist, U.S. Geological Survey
Over the past 20 years, the Tucson Active Management Area has experienced fluctuations in aquifer storage. These changes are a result of recharging imported water and changing groundwater pumping regimes. The USGS uses microgravity to directly measure storage changes in space and time, while Tucson Water measures depth to water in its measurable production wells in an annual round-up. By examining the data from both agencies, it is possible to characterize changes in the regional aquifer and monitor interesting trends in specific geographic areas.
Margaret Snyder began studying environmental science at Hartwick College, in central New York. After attending graduate school at the University of Arizona, she continued working in watershed management, first with the Nez Perce Tribe and then with the USGS. Margaret has been with Tucson Water for 6 years as the project hydrologist for Tucson Water’s Colorado River recharge program.
Libby Kahler is a hydrologist with the US Geological Survey and a graduate of UA’s Hydrology program (MS). She works largely with the USGS Southwest Gravity Program, collecting and analyzing gravity data to answer hydrological questions.
Human-environment dynamics in the Sonoran Desert and Ae. aegypti, the vector of dengue, Zika and chikungunya
Brown Bag Webinar - Student Research on Water Resource Science Monitoring and Methods
Presentations: Monitoring Tamarix defoliation and mortality from D. carinulata attacks using satellite imagery in Grand Canyon National Park, Arizona, USA; Isotopes, geochemistry, citizen science and local partnerships as tools to build upon a fractured understanding of the hydrology of the Patagonia Mountains, and Solar nanofiltration for off-grid water purification in Navajo Nation.
This Brown Bag will feature presentations by students who received research grants in 2019 through the WRRC from the Water Resources Research Act, Section 104(b) grant program.