After the sun sets over the desert, pocket mice start shaking their little tails – really shaking them. And shaking their entire rear ends. I first noticed the strange behavior while going through footage from wildlife cameras while researching a different question. I soon realized how few mammologists had seen the dancing.
Recently, India has come under scrutiny for its failure to improve food and nutrition security (FNS). Prominent governmental and nongovernmental strategies addressing FNS include promoting horticultural crops to increase incomes, distributing food, and providing nutritional education. Analyzing qualitative data collected in the summer of 2013, I examine programs in Uttarakhand, India where hunger has been eradicated, yet malnutrition persists.
Recognizing the interdecadal changes in the dispersion of yearly hurricane activity, a new statistical model is developed to more realistically predict (by June 1 of each year) the number of seasonal hurricanes over the North Atlantic. It is based on a Poisson regression using the Multivariate ENSO Index (MEI) conditioned upon the Atlantic Multidecadal Oscillation (AMO) index, the zonal psuedo stress, and average March, April, and May (MAM) Atlantic sea surface temperatures (SSTs).
Frozen ground (i.e. permafrost) contains a huge reservoir of carbon and as the climate warms the ground thaws making old carbon accessible for microbial decomposition. Permafrost accounts for half of the world’s soil carbon (~1700 Pg) and microbes can transform this carbon into CO2 and CH4.
In January 2014 a new wastewater treatment plant (WWTP) – Agua Nueva was commissioned in Tucson Arizona. This WWTP is unique within the U.S. that it has: i) dissolved air flotation instead of conventional primary sedimentation; and ii) a 5 stage Bardenpho process for nutrient removal. In this presentation we show the efficacy of this 21st Century WWTP plant for removal of nitrogen and phosphate, and for the removal of 7 model viruses.
In the American Southwest, the current prolonged warm drought is similar to the predicted future climate change scenarios for the region. This study aimed to determine patterns in vegetation response to the early 21st century drought across ecosystem types.
Dengue fever is a mosquito-borne virus that is quickly spreading geographically, with several recent outbreaks occurring in the US. Climate change may fuel this spread because of the close relationships between climate, and the dengue vector and virus. This research examines the impact of present and future climate data on Ae. aegypti and dengue fever transmission in 32 locations across the southern United States.
Atmospheric rivers (ARs) are understood to be the cause of nearly all extreme precipitation events leading to flooding in the western United States. These narrow channels of high moisture and strong winds draw moisture from the tropics to the west coast during the winter. The floods associated with ARs have been some of the most significant in the area. Furthermore, in the context of climate change, IPCC AR4 projections show increases in frequency of ARs and longer flood-hazard seasons in California.