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Full-Text Articles in Physical Sciences and Mathematics
Quick Guide To Plant Families Of Western Washington, Maggie Hayward, John D. Tuxill, James M. Helfield
Quick Guide To Plant Families Of Western Washington, Maggie Hayward, John D. Tuxill, James M. Helfield
WWU Honors College Senior Projects
This guide is an expanded version of a booklet designed to help students identify native plants in western Washington. It has been expanded to include invasive and ruderal taxa commonly found in riparian areas. The purpose of this guide is to provide practical help for identifying plant families, and to facilitate a basic understanding of plant morphology. By observing morphological characteristics such as leaf arrangement and structure, the user can narrow an unidentified species down to the family level. Because this book does not go to the species level, it is meant to be used as a companion to other …
Preliminary Impacts Of Constructed Log Jams On Streambed Topography And Bed Temperature On The South Fork Nooksack River, Sam Kaiser
WWU Honors College Senior Projects
Salmon are an essential part of the culture, ecology and economy of the Pacific Northwest region of North America, but populations of some ecotypes are declining. One specific population, the Puget Sound chinook (Oncorhynchus tshawytscha), is listed as threatened under terms of the U.S. Endangered Species Act (ESA). The decline of this ecotype has implications not only for humans but also for all links of the ecosystem such as the populations of southern resident killer whales (Orcinus orca) which prey predominately on chinook salmon. Major threats to these fish include overharvest and habitat degradation due to …
Temporal And Spatial Variability Of Carbonate Chemistry In A Tillamook Bay Tributary: Tracing Acidification From The River To The Bay, Abigail Ernest-Beck
Temporal And Spatial Variability Of Carbonate Chemistry In A Tillamook Bay Tributary: Tracing Acidification From The River To The Bay, Abigail Ernest-Beck
WWU Honors College Senior Projects
Coastal acidification from rising atmospheric carbon dioxide can be exacerbated by local factors such as land inputs of inorganic carbon and nutrients. In Tillamook Bay, OR, the possibility of local factors enhancing acidification and impacting oyster aquaculture in the bay is a concern due to extensive agriculture in the watershed. The US EPA has been monitoring water conditions in Tillamook Bay tributaries since the summer of 2016, and preliminary findings showed increased dissolved inorganic carbon (DIC) downstream of agricultural areas. To determine the causes of elevated DIC, changes attributed to land-based inputs must be distinguished from natural temporal variability and …