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 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...
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...
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...
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...
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...
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...
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...
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...