Physical Sciences and Mathematics Commons^™

Judy Reservoir Monitoring Project 2011 Final Report, Robin A. Matthews, Joan Vandersypen

Judy Reservoir

The purpose of this study was to identify and count the phytoplankton and measure chlorophyll, total nitrogen, and total phosphorus levels in water samples collected from Judy Reservoir. Water quality and algal data have been collected on a weekly basis since October 2006; annual reports have been sent to the Skagit Public Utility District No. 1 in 2007, 2008, and 2010 (January and December).

Lake Samish Water Monitoring Project 2011b Final Report, Robin A. Matthews, Joan Vandersypen

Lake Samish

Lake Samish is a valuable aquatic resource, providing public access for boating, fishing, swimming, picnicking, and other water and lakeshore activities. Residents around the lake enjoy outstanding views of both the lake and its surrounding watershed, and the lake serves as a water supply for many of the lakeshore residents. Lake Samish is located in the Washington State Department of Ecology’s Water Resource Inventory Area #3 (WRIA 3), and discharges into Friday Creek, a salmon spawning tributary of the Samish River.

Lake Samish experiences periodic algal blooms, including blooms of potentially toxic cyanobacteria. The major goal of the monitoring project …

Seasonal Stability Of A Flexible Algal-Cnidarian Symbiosis In A Highly Variable Temperate Environment, James L. Dimond, Brian L. Bingham, GisèLe Muller-Parker, Kaela Wuesthoff, Lisbeth Francis

Environmental Sciences Faculty and Staff Publications

We evaluated the seasonal stability of two algal symbiont populations in the temperate intertidal sea anemone Anthopleura elegantissima on San Juan Island, Washington, where the relatively thermally tolerant dinoflagellate Symbiodinium muscatinei coexists with the less thermally tolerant chlorophyte Elliptochloris marina. Random collection of anemones along repeatedly sampled transects over four seasons and three shore heights revealed S. muscatinei to be the dominant symbiont, with E. marina mostly limited to anemones in the lower intertidal zone. At the lowest shore height sampled (+0.2 m), the proportion of E. marina was between 40% and 50% of the total symbiont population throughout …

Causes And Implications Of The Correlation Between Forest Productivity And Tree Mortality Rates, Nathan L. Stephenson, Phillip J. Van Mantgem, Andrew Godard Bunn, Howard Bruner, Mark E. Harmon, Kari B. O'Connell, Dean L. Urban, Jerry F. Franklin

Environmental Sciences Faculty and Staff Publications

At global and regional scales, tree mortality rates are positively correlated with forest net primary productivity (NPP). Yet causes of the correlation are unknown, in spite of potentially profound implications for our understanding of environmental controls of forest structure and dynamics and, more generally, our understanding of broad-scale environmental controls of population dynamics and ecosystem processes. Here we seek to shed light on the causes of geographic patterns in tree mortality rates, and we consider some implications of the positive correlation between mortality rates and NPP. To reach these ends, we present seven hypotheses potentially explaining the correlation, develop an …

Borders, Barriers, And Breakthroughs In The Cascadia Corridor, Troy D. Abel, Jenni Pelc, Lauren F. Miller, Jacqueline Quarre, Kathryn Mork

College of the Environment on the Peninsulas Publications

This project focused on dilemmas of political biogeography through a case study of wildlife conservation and management efforts in the transboundary Cascadia region. Our team examined the interface of political science and biogeography, or “political biogeography,” through its manifestations in the evolving opportunities and barriers to regional wildlife conservation in the shared terrestrial ecosystems of British Columbia and Washington. Our research combined content analysis of policy documents and semi-structured stakeholder interviews and questionnaires. We also produced a series of maps and GIS data layers that provide useful spatial information about the wildlife commons in the Cascadia region. The results of …

Reed Lake Water Quality Monitoring Project January - June 2011 Final Report, Maggie Taylor

Reed Lake

Reed Lake is located east of Highway 20 near Alger (WA) on the border of What- com and Skagit Counties. At the western tip of Reed Lake a concrete dam con- trols water flow into Cain Lake. Both lakes are surrounded by communities that have grown rapidly in the last few decades. Development extends to the shoreline around the entire perimeter of Reed Lake, with several boat launches and private docks. Residents around both lakes rely on individual septic systems for waste- water treatment. Recreation on the lake includes boating, swimming, and fishing for annually stocked rainbow trout (Oncorhynchus mykiss). …

Birch Bay Village Lakes 2011 Final Report, Robin A. Matthews, Joan Vandersypen

Birch Bay/Village Lakes

The Institute for Watershed Studies was contracted by the Birch Bay Village Lakes Committee to continue water testing at two sites in Kwann Lake and two sites in Thunderbird Lake (Figure 1, page 4). The sampling effort began in August 2007, and samples have been collected approximately 3–4 times each year through spring 2011. This report provides an update to the 2008 and 2009 data reports submitted to the Birch Bay Village Lakes Committee.

Climatic Controls On The Snowmelt Hydrology Of The Northern Rocky Mountains, Gregory T. Pederson, Stephen T. Gray, Toby Ault, Wendy Marsh, Daniel B. Fagre, Andrew Godard Bunn, Connie A. Woodhouse, Lisa Graumlich

Environmental Sciences Faculty and Staff Publications

The northern Rocky Mountains (NRMs) are a critical headwaters region with the majority of water resources originating from mountain snowpack. Observations showing declines in western U.S. snowpack have implications for water resources and biophysical processes in high-mountain environments. This study investigates oceanic and atmospheric controls underlying changes in timing, variability, and trends documented across the entire hydroclimatic-monitoring system within critical NRM watersheds. Analyses were conducted using records from 25 snow telemetry (SNOTEL) stations, 148 1 April snow course records, stream gauge records from 14 relatively unimpaired rivers, and 37 valley meteorological stations. Over the past four decades, midelevation SNOTEL records …

Lake Samish Water Monitoring Project 2011 Final Report, Robin A. Matthews, Joan Vandersypen

Lake Samish

Lake Samish is a valuable aquatic resource, providing public access for boating, fishing, swimming, picnicking, and other water and lakeshore activities. Residents around the lake enjoy outstanding views of both the lake and its surrounding watershed, and the lake serves as a water supply for many of the lakeshore residents.

Lake Samish is located in the Washington State Department of Ecology’s Water Resource Inventory Area #3 (WRIA 3), and discharges into Friday Creek, a salmon spawning tributary of the Samish River. Lake Samish experiences periodic algal blooms, including blooms of potentially toxic cyanobacteria. The major goal of the monitoring project …

Lake Whatcom Monitoring Project 2009/2010 Report, Robin A. Matthews, Michael Hilles, Joan Vandersypen, Robert J. Mitchell, Geoffrey B. Matthews

Lake Whatcom Annual Reports

This report is part of an on-going series of annual reports and special project reports that document the Lake Whatcom monitoring program. This work is conducted by the Institute for Watershed Studies and other departments at Western Washington University.

The major objective of this program is to provide long-term baseline water quality monitoring in Lake Whatcom and selected tributaries. Each section contains brief explanations about the water quality data, along with discussions of patterns observed in Lake Whatcom.

High-Latitude Tree Growth And Satellite Vegetation Indices: Correlations And Trends In Russia And Canada (1982-2008), Logan T. Berner, Pieter S. A. Beck, Andrew Godard Bunn, Andrea H. Lloyd, Scott J. Goetz

Environmental Sciences Faculty and Staff Publications

Vegetation in northern high latitudes affects regional and global climate through energy partitioning and carbon storage. Spaceborne observations of vegetation, largely based on the normalized difference vegetation index (NDVI), suggest decreased productivity during recent decades in many regions of the Eurasian and North American boreal forests. To improve interpretation of NDVI trends over forest regions, we examined the relationship between NDVI from the advanced very high resolution radiometers and tree ring width measurements, a proxy of tree productivity. We collected tree core samples from spruce, pine, and larch at 22 sites in northeast Russia and northwest Canada. Annual growth rings …

Gps Bias Correction And Habitat Selection By Mountain Goats, David O. Wallin, Adam G. (Adam Gerhard) Wells, Clifford Gustav Rice, Wan-Ying Chang

Environmental Sciences Faculty and Staff Publications

In Washington State, USA, mountain goats (Oreamnos americanus) have experienced a long-term population decline. To assist management, we created annual and seasonal (summer and winter) habitat models based on 2 years of data collected from 38 GPS-collared (GPS plus collar v6, Vectronic-Aerospace GmbH, Berlin, Germany) mountain goats in the western Cascades. To address GPS bias of position acquisition, we evaluated habitat and physiographic effects on GPS collar performance at 543 sites in the Cascades. In the western Cascades, total vegetation cover and the quadratic mean diameter of trees were shown to effect GPS performance. In the eastern Cascades, aspect and …

Stability, Sustainability, And Catastrophe: Applying Resilience Thinking To U.S. Agriculture, Gigi M. Berardi, Rebekah Paci-Green, Bryant Hammond

Environmental Studies Faculty and Staff Publications

Resilience is closely related to notions of sustainability, but emphasizes unpredictable, dynamic environments. As conceptualized in engineering, hazards management, and ecology literature, part of resilience is adaptive capacity, the ability to react effectively to change over time in order to maintain a desirable system state. Agricultural policy has had the effect of undermining such adaptive capacity with its emphasis on stabilization. Using a resilience framework and Hurricane Katrina as an analogy, we suggest that the emphasis on stability and efficiency degrades agricultural system resilience in two ways: through reduced diversity in size and type of production, as well …

Speculations About The Effects Of Fire And Lava Flows On Human Evolution, Michael J. Medler

Environmental Studies Faculty and Staff Publications

Recent research argues that an association with fire, stretching back millions of years, played a central role in human evolution resulting in many modern human adaptations. Others argue that hominin evolution was driven by the roughness of topographic features that resulted from tectonic activity in the African Rift valley. I combine these hypotheses to propose that, for millions of years, active lava flows in the African Rift provided consistent but isolated sources of fire, providing very specific adaptive pressures and opportunities to small isolated groups of hominins. This allowed these groups of early hominins to develop many fire specific adaptations …