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Filtering by: Creator Evans, Gary R. Contributor Adamus, Paul R. Resource Type Masters Thesis

Effects of Secondary Salinization on Three Coastal Breeding Amphibians in Oregon: Taricha granulosa, Hyliola regilla, and Rana aurora

Creator:

Goddard, Amanda L.

Abstract:

Due to threats of secondary salinization caused by increased saltwater intrusion upstream associated with climate change, this thesis examines how salinity affects the development and oviposition site selection habits of three Oregon coastal breeding amphibians, the Roughskin Newt (Taricha granulosa), the Northern Red-legged Frog (Rana aurora) and the Pacific Treefrog...

Resource Type:

Masters Thesis

Full Text:

: ______________________________________________________ Paul R. Adamus Due to threats of secondary salinization caused by increased saltwater
A Trend Analysis of Nitrate in the Southern Willamette Valley Groundwater Management Area (GWMA)

Creator:

Piscitelli, Cody M.

Abstract:

The shallow aquifer in Southern Willamette Valley (SWV) has high levels of nitrate, and we are exploring the time trends in nitrate, and the hydrologic and land management factors that contribute to this problem. Nitrogen (N) inputs to farmland from fertilizer is thought to be the primary source of nitrogen...

Resource Type:

Masters Thesis