Given the broad scientific consensus that global climate is changing, it is no longer a question if sea level will rise, but rather by how much will it rise. The regional estimates for the Eastern Pacific suggest that the Northwest coastlines will experience a greater eustatic sea level rise than...
Sea level and wind data from coastal and island stations from
Buenaventura, Colombia (4°N) to Callao, Peru (12°S) have been
analyzed for the 1979-1984 time period, to describe the seasonal and
interannual variations in the characteristics of short time scale
variability (1-2 weeks). Auto- and cross spectral analyses are used...
Sea level and the alongshore component of wind stress data at
seven locations on the Pacific coast of Canada and the United States
were analyzed. The effective data period was from August 1, 1973 to
September 9, 1975. The seven locations were Tofino, British
Columbia; Neah Bay and Toke Point,...
The relationship between sea level and wind stress in a region of
known upwelling was studied for an eleven-month period during
1933-34.
Sea level data, obtained from observations taken by the Coast and
Geodetic Survey, were processed to remove astronomic tidal constituents
and inverted barometer effect. Regression analysis was used...
The importance of local versus distant forcing is studied for the wind driven intra- seasonal (30-120 day) sea level anomaly (SLA) variations along the west coast of India. Three locations on the continental slope are chosen to represent the west coast. Two more locations, one east of Sri-Lanka and another...
In this paper, I will analyze the nature of these
problems and examine how recent approaches to SLRA have
dealt with them. In addition, a framework for assessing the
potential impacts of sea level rise is proposed, drawing
upon the ecological concept of resilience (Holling 1978,
1984).
Behavioral studies of populations provide clues as to what influences their
movements and life history strategies. This is an area of study that has been
underutilized in research surrounding the declining western stock of Steller sea
lions, Eumet opias jubatus, particularly with regards to haulout behaviors. During
the time of...
Throughout the Holocene, appreciable changes in bathymetry are hypothesized to have resulted in large changes to tidal datums in coastal and estuarine areas. An understanding of tidal change is an important contribution to the knowledge of relative historical sea-level change and future coastal planning. To test this hypothesis, the Advanced...
An investigation of the genetic and meristic patterns of coastal cutthroat trout (Oncorhynchus clarki clarki) in two coastal basins, one in Oregon and one in Alaska, revealed varying degrees of differences among populations within each site. Coastal cutthroat trout collected from seven sites above and below barriers from Elk River,...
A dynamic bioenergetic model for Steller sea lions (Eumetopias jubatus) was built using the STELLA simulation modeling system. The model is intended as an aid for the exploration of ecological questions regarding growth and survival of immature Steller sea lions (ages 1-3) living along the Oregon coast under different nutritional...
Fine and coarse particles were collected for eight weeks during the
summer of 1991, at a coastal site (Yaquina Head) and a non-industrial site
(Corvallis) in Western Oregon to characterize the aerosol composition and
evaluate whether the sites are appropriate for sampling "background" marine
air. Concentrations of up to 11...
Redband trout density was examined in three forested streams in central
Oregon at two scales, pool channel unit and microhabitat. Two streams were in
roadless areas and one was in a "highly managed" watershed. At the larger
spatial scale, trout displayed a seasonal shift in habitat use from early to...
Candidatus Pelagibacter ubique is the first cultured representative of the SAR11 clade, a clade that is found throughout the oceans and accounts for approximately 25% of all bacterial cells [1]. It has a streamlined genome that is the smallest of any known free-living organism. In this study the complete genome...
Water treatments were applied to young ponderosa pine trees in the Eastern Cascades, Oregon during the 2003 growing season, and shade treatments were applied during the 2003 and 2004 growing seasons to understand how photosynthesis and soil respiration, particularly the root/rhizosphere fraction (R[subscript rrh]), would respond to increased moisture availability...
The purpose of this study was to investigate the relationship of family size, birth order,
socioeconomic status, and parent-child relationships to young children's intellectual
development.
Seventy-four children, 39 boys and 35 girls, with a mean age of 4 years-8 months,
and their parents (mothers and fathers), selected from 9 preschool...
I studied the water relations traits, twig conductivity, C'3 isotopic composition,
and wood density of three conifer and five angiosperm species in western Oregon. This
study took place from spring 2002 to fall 2003 on four sites. Species were selected to
represent the diversity of drought tolerance of woody plants...
The central Oregon coast was selected as an ideal site for wave energy
development and establishment of the Pacific Marine Energy Center (PMEC). PMEC will consist of two nearshore sites, one north (NETS) and one south (SETS) of the Yaquina River, Oregon. Our study aims to assess how the development...
This research consists of two related yet distinct
studies: an observational study of the surface character of
the penetration of marine air into the southern Willamette
Valley and a climatological study of the summertime air
masses of northwestern Oregon.
For the observational study, temperature and estimated
wind data were gathered...
I tested the hypothesis that there is a correlation between inundation period and net primary production (NPP) in estuarine salt marshes through an observational experiment at South Slough National Estuarine Reserve, Oregon. I estimated primary production and inundation period for selected monotypic plant communities in (1) a naturally restored wetland...
The growing demand for water in the arid regions of the West
increases the need for optimal allocation of water among competing
uses. An efficient allocation of water between instream and out-of-stream
uses has been impeded by institutional constraints and the
scarcity of information regarding instream flow benefits. The
objectives...
The Steller Sea Lion Research Initiative was passed in 2001 to provide funding to help scientists determine causes and solutions for the population crash of Steller sea lions (Eumetopias jubatus). In response to need to understand population dynamics of Steller sea lions, NOAA Fisheries has spearheaded a large-scale, range-wide research...
With 150 million people visiting accredited zoos and aquariums annually, these institutions have the unique opportunity to present conservation-oriented messages to a large and receptive audience. The purpose of this study was to explore the role of interpretation and/or the viewing of live animals in the communication of these messages....
Rivers impacted by human activities often have multiple stressors present. The effects of multiple stressors on biological communities can often be difficult to predict, due to the potential for complex interactions between stressors and communities. This thesis explores the impacts of two stressors often associated with agricultural land use, increased...
Coastal flood hazard zones and the design of coastal defenses are often devised using either the maximum recorded total water level (TWL) or a 'design' event such as the 100-year return-level flood, usually projected from observed extreme events. Despite technological advances driving more consistent instrumental records of wave heights and...
Education programs at zoos and aquariums provide opportunities for visitors to learn and garner information on animal natural history and, hopefully, conservation messaging. Fee-based programs (programs with an additional fee on top of admission prices), which are commonly employed by zoos and aquariums to foster learning opportunities for visitors, are...
Dams and reservoirs are important components of water resource management systems, but their operational sensitivity to streamflow variability may make them vulnerable to climate change. Climate change is likely to affect the magnitude and timing of streamflow, motivating the assessment of potential impacts on dams and reservoirs. Here I examine...
Estuaries represent the confluence of land and ocean environments and encompass a number of complex interactions amongst tides, winds, offshore waves and the riverine contributions, all of which contribute to total water levels (TWLs). The study of TWLs and the relative weight of its components can assist local communities in...
