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Manipulation Of Larval And Winter Habitat Reveals Potential Effects Of Urbanization And Climate Change On Wood Frogs In Connecticut, Jason H. O'Connor

Master's Theses

Human activity can result in both local and global changes in the environment which in turn can affect other organisms and may result in population declines and loss of biodiversity. At the local scale, human activity often causes changes in habitat quality. For example, development and agriculture increase water turbidity which can influence wetland communities. At a global scale, carbon emissions are altering Earth’s climate, leading to increasing air temperatures. Using Wood Frogs, Lithobates sylvaticus, a wide-ranging, pond breeding amphibian, I sought to determine how sediment input affects larval amphibians and to assess how predicted loss of snow cover …

Observed And Simulated Processes Linked To The Recent Climate Variability And Changes Over The Greater Horn Of Africa, Vincent O. Otieno

Doctoral Dissertations

The main objective of this dissertation is to document characteristics of the processes and mechanisms associated with 20^th and 21^st century spatio-temporal modes of climate variability and changes over the Greater Horn of Africa (GHA) region.

This thesis research comprises three major parts. The first part used output from ten Earth System Models (ESMs) from the fifth phase of coupled model intercomparison project to characterize seasonal and annual mean precipitation cycle over the Greater Horn of Africa (GHA) region. Each ESM had at least 2 ensemble members. In spite of distributional anomalies of observations, ESM ensemble means were …