Index Catalog // ScholarsArchive@OSU

Microplastics in Pacific Northwest Bivalves: Ecological Prevalence, Harvester-Consumer Exposure, and Aquarium Exhibit Outcomes

Creator:: Baechler, Britta Rahel
Abstract:: Up to 23 million metric tons of mismanaged plastics enter the global ocean annually. Microplastics (MPs;<5mm) degrading. MPs leak into the environment and now pervade every corner of the earth, with implications for animal, plant, ecosystem and human health. It is important to understand localized environmental MP prevalence, distribution and...
Resource Type:: Dissertation

Why Do Animals Do What They Do, When They Do It? Characterizing the Role of the Hypothalamus-Pituitary-Adrenal Axis in Seasonal Life-History Transitions

Creator:: Dayger Forbes, Catherine Anne
Abstract:: Resource availability follows seasonal cycles in environmental conditions. To align physiology and behavior with prevailing environmental conditions, seasonal animals integrate cues from the environment with their internal state. One of the systems animals use to integrate those cues is the hypothalamus-pituitary-adrenal (HPA) axis and its primary effector, glucocorticoid hormones. The...
Resource Type:: Dissertation

Informing Oregon’s Marine Protected Area (MPA) Baseline Past and Present Tribal Uses of Marine Resource

Creator:: Comet, Sabra Marie TallChief
Abstract:: Oregon implemented a series of marine reserves from 2012 through the beginning of 2016 that will be evaluated in 2023. As part of that evaluation, several studies are focusing on the impact of the reserves on coastal communities. This project focused on tribal members with ancestral territory on the Oregon...
Resource Type:: Capstone Project

Informing Oregon's Marine Protected Area (MPA) Baseline : Past and Present Tribal Uses of Marine Resources

Creator:: Comet, Sabra Marie TallChief
Abstract:: Poster available: http://archives.pdx.edu/ds/psu/20385
Resource Type:: Poster

The Future of Oregon's Agricultural Land

Creator:: Brekken, Christy Anderson, Gwin, Lauren, Horst, Megan, McAdams, Nellie, Martin, Sheila, and Stephenson, Garry
Abstract:: Sixty-four percent of Oregon's farmland is expected to change hands in the next 20 years, yet many Oregon farmers are unprepared for succession. Simultaneously, beginning farmers are finding it harder to start farmers because of dramatically increasing land prices. These distinct but interwined challenges are addressed in a new research...
Resource Type:: Technical Report
Full Text:: Portland State University. NELLIE MCADAMS, JD Director of the Farm Preservation Program at Rogue

Calibration and verification of HSPF model for Tualatin River Basin Water Quality

Creator:: Tang, Fei
Abstract:: The Tualatin River Basin is located in the Washington County, Oregon. The river was detected having high chlorophyll a concentration and low dissolved oxygen concentration during summer time, which violated DEQ water quality standards. A mathematical model (HSPF) was used to simulate physical, chemical and biological processes in the basin...
Resource Type:: Technical Report
Full Text:: CIVIL ENGINEERING PORTLAND STATE UNIVERSITY PORTLAND, OREGON 97207-0751 CALIBRATION AND VERIFICATION

Historical and Existing Vascular and Bryophyte Flora, Former Blue Heron Paper Mill, Willamette Falls, Oregon City, Oregon: Technical Memo to Metro

Creator:: Christy, John A. and Gaddis, Philip K.
Abstract:: Willamette Falls has long been a focus of botanical interest, but industrial development at the site has limited public access for over a century. The closure of the Blue Heron paper mill on the south bank of the river, and proposed redevelopment of the site, has given planners an opportunity...
Resource Type:: Technical Report
Full Text:: Center, Institute for Natural Resources, Portland State University and Philip K. Gaddis August

Wet Meadow Plant Associations, Double O Unit, Malheur National Wildlife Refuge, Harney County, Oregon

Creator:: Christy, John A.
Abstract:: This report summarizes vegetation data collected in July 2015 in wet meadow and marshy habitats on the Double O Unit of Malheur National Wildlife Refuge (MNWR). Because vegetation sampled at the Double O was wetter and more alkaline than wet meadows sampled at the south end of the refuge in...
Resource Type:: Technical Report
Full Text:: Center, Institute for Natural Resources Portland State University July 2016 1

The Distribution and Reproductive Success of the Western Snowy Plover along the Oregon Coast - 2016

Creator:: Lauten, David J., Castelein, Kathleen A., Farrar, J. Daniel, Kotaich, Adam A., Krygsman, Erica, and Gaines, Eleanor P.
Abstract:: We monitored the distribution, abundance and productivity of the federally threatened Western SnowyPlover (Charadrius nivosus nivosus) along the Oregon coast from 5 April – 31 August 2016. From north to south, we surveyed and monitored plover activity at Sutton Beach, Siltcoos River estuary, the Dunes Overlook, North and South Tahkenitch...
Resource Type:: Technical Report
Full Text:: for Natural Resources Portland State University/INR PO Box 751 Portland, Oregon 97207 December

Existing Vegetation and Site Observations at Killin Wetland, Washington County, Oregon

Creator:: Christy, John A. and Garvey, Megan
Abstract:: The history, current condition, and options for restoration at Metro's Killin Wetland were outlined recently by Christy (see citation information below). As part of the site evaluation, Metro requested an inventory of Killin Wetland, which is presented here with information on other miscellaneous features observed that may be of interest...
Resource Type:: Technical Report
Full Text:: , Portland State University August 2015 Background The history, current condition, and options

ScholarsArchive@OSU

Microplastics in Pacific Northwest Bivalves: Ecological Prevalence, Harvester-Consumer Exposure, and Aquarium Exhibit Outcomes

Why Do Animals Do What They Do, When They Do It? Characterizing the Role of the Hypothalamus-Pituitary-Adrenal Axis in Seasonal Life-History Transitions

Informing Oregon’s Marine Protected Area (MPA) Baseline Past and Present Tribal Uses of Marine Resource

Informing Oregon's Marine Protected Area (MPA) Baseline : Past and Present Tribal Uses of Marine Resources

The Future of Oregon's Agricultural Land

Calibration and verification of HSPF model for Tualatin River Basin Water Quality

Historical and Existing Vascular and Bryophyte Flora, Former Blue Heron Paper Mill, Willamette Falls, Oregon City, Oregon: Technical Memo to Metro

Wet Meadow Plant Associations, Double O Unit, Malheur National Wildlife Refuge, Harney County, Oregon

The Distribution and Reproductive Success of the Western Snowy Plover along the Oregon Coast - 2016

Existing Vegetation and Site Observations at Killin Wetland, Washington County, Oregon

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