ABSTRACT: Sedimentary habitats are complex associations of biotic, chemical, and physical processes
comprising ‘ecosystem function’. The relative importance of these processes to biogeochemical
cycling in highly reactive, permeable sediments remains poorly understood. We report results
from several field experiments in a muddy-sand intertidal flat dominated by 2 functionally different
types...
Bioturbating infauna significantly modify reaction and transport processes in permeable sediments, though most studies to date are limited in the scope of species examined. We conducted a comparative field study measuring density-dependent effects of six common bioturbating species on porewater advection and biogeochemistry, across three intertidal permeable sediment habitats. The...
Many marine bivalves are sensitive to ocean acidification (OA) stress and often show heightened sensitivity during brief early larval and post-larval life stages, potentially leading to population bottlenecks. Most of the evidence to date has been collected in laboratory experiments that focused on physiological responses at the organismal level under...
We tested the role of benthic infaunal functional diversity in regulating the biogeochemistry of nearshore sediments using laboratory microcosms. Single and multispecies assemblages of deposit-feeding polychaetes (Clymenella torquata, Spio setosa, and Leitoscoloplos fragilis) were used, and fluxes of oxygen and phosphate, as well as profiles of oxygen and pH in...
Block 1 of the Averill Addition played an important
role in the early commercial development of Bandon, Oregon,
a town located on Oregon's south coast. Retail
establishments located on the block supplied the local
residents with a variety of merchandise for the period of
1886-1914.
During this period Bandon served...
With the arrival of European settlers to Western Oregon nearly 150 years ago came new methods of forest management. Early settlers' forest practices consisted of little more than harvesting what seemed an endless supply of timber. Forestry in the 20th century eventually incorporated such management concerns as re-forestation, biodiversity, wildlife...
Vocalization patterns of two groups of captive Francois' langurs (Presbytis
francoisi) were studied between August 1989 and June 1990. During the 11
months of observation, 109 hours of vocalization recordings were made at Metro
Washington Park Zoo, Portland, and the San Diego Zoo, San Diego. Based on the
behavioral observations...
The study presents the results of a descriptive analysis of the skeletal remains of 66
individuals recovered from the Fuller and Fanning Mound sites, located on the Yamhill River,
Willamette Valley, Oregon, excavated in 1941-42 by W. T. Edmundson and William S.
Laughlin. The literature and original field notes have...
One of the greatest technological breakthroughs of humanity was the ability to
construct a device and eventually a system which would provide a more efficient, safe,
clean, convenient and relatively inexpensive form of illumination than ever used previously
electric light. The introduction of this new technology into Oregon
communities in...
Visitor behavior research has become an essential
component to many museum programs. Since its opening to the
public in 1965, Oregon State University's Mark O. Hatfield
Marine Science Center Aquarium in Newport, it has been
visited by millions of people. A clear understanding of who
this audience was and what...