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Aquatic Ecology and Management Team Directory

Team Members
Pete Bisson Bisson, Pete
Research Fish Biologist
(Emeritus)
PNW Research Station,
Olympia, WA
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My research includes stream habitats, food webs, riparian management, and a variety of conservation issues related to watersheds. I hold affiliate faculty appointments at University of Washington and Oregon State University, and am currently serving as vice-chair of the Independent Scientific Review Panel for the Northwest Power and Conservation Council.
Kelly Burnett Burnett, Kelly
Research Fish Biologist
(Emeritus)
PNW Research Station,
Corvallis, OR
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My research centers around four broad topics: 1) Understanding relationships between salmon and their habitats; 2) Characterizing how aquatic habitats are distributed throughout a stream network and across a landscape and what influences this distribution; 3) Evaluating and developing spatial data for broad-scale research and conservation of stream ecosystems; and 4) Advancing knowledge about interactions among in-channel conditions, watershed processes, and land management to better design and evaluate policy options.
Julia Burton Burton, Julia
Research Ecologist
Oregon State University
Corvallis, OR
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I am interested in relationships among disturbance and forest stand dynamics, biodiversity and ecosystem processes. Much of my work focuses on linkages between overstory and understory plant communities in forest ecosystems. Currently, I am examining relationships among riparian buffer treatments, climate variability and amphibian habitat in the uppermost reaches of forested headwater streams. This work is part of the collaborative Density Management Study.
Kelly Christiansen Christiansen, Kelly
GIS Data Services Specialist
PNW Research Station,
Corvallis, OR
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I am a GIS analyst. For my work with the AEM Team in Corvallis, I conduct spatial analyses and create geographic models. I also manage spatial databases, and create maps and figures for a variety of research projects.
Shannon Claeson Claeson, Shannon
Ecologist
PNW Research Station,
Olympia, WA
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My research focuses on the interactions between riparian and aquatic systems, specializing on the role of aquatic invertebrates in stream and lake systems. I am interested in community ecology, disturbance ecology, food-webs, and the ecological impact of invasive organisms.
Charlie Crisafulli Crisafulli, Charlie
Ecologist
PNW Research Station,
Olympia, WA
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I’m a research ecologist who’s been conducting work at Mount St. Helens since July 1980, just weeks after the catastrophic May 18, 1980, eruption. I’m leading studies that are providing insights into the initial and long-term responses of ecosystems to large, infrequent disturbance. My studies explore the ecology of the volcano’s small mammals, birds, amphibians, insects, and plants. My other research interests include the role of exotic species in montane lakes and the ecology of rare endemic salamanders.
Loretta Ellenburg Ellenburg, Loretta
Biological Science Technician
PNW Research Station,
Corvallis, OR
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I coordinate the field work and data management for Team members in Corvallis, Oregon. In particular, I am the field and data manager for our Team’s research on the Density Management and Riparian Buffer Study of Western Oregon, and I coordinate field surveys of northwestern amphibians, fishes, and their habitats for a variety of other projects. My other tasks include vehicle and supply management, and first-aid and driver training coordination.
Rebecca Flitcroft Flitcroft, Rebecca
Research Fish Biologist
PNW Research Station,
Corvallis, OR
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In my research, I am drawn to questions that explore holistic approaches to watershed analysis and management. I am interested in both statistical and physical representations of stream networks in analysis and monitoring that more realistically represent stream complexity and connectivity for aquatic species.
Alex Foster Foster, Alex
Ecologist
PNW Research Station,
Olympia, WA
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My interests are related to the effects of forest management on aquatic and riparian systems. Current work includes: 1) how plant and animal species recolonize a recent debris flow; 2) physical and biological attributes of small forested wetlands; 3) ecology of little-known invertebrates such as mollusks and millipedes.
Bruce Hansen Hansen, Bruce
Ecologist
PNW Research Station,
Corvallis, OR
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I am an aquatic ecologist with research interests in: 1) salmonid and freshwater mollusk life history and habitat associations; 2) the effects of road-crossing culverts on aquatic organism passage and population connectivity; and 3) aquatic invasive species. I serve as the Dive Safety Officer for the US Forest Service, Pacific Northwest region.
Dede Olson Olson, Deanna H. (Dede)
Supervisory Research Ecologist, Team Leader
PNW Research Station,
Corvallis, OR
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I study the conservation biology, behavioral ecology, and population and community ecology of amphibians. My current projects address: 1) the effects of forest management practices and riparian buffer widths; 2) microhabitat-to-landscape scale habitat modeling; 3) the effects of climate variation; and 4) the amphibian chytrid fungus, Batrachochytrium dendrobatidis.
Brooke Penaluna Penaluna, Brooke
SCEP Research Fish Biologist
PNW Research Station,
Corvallis, OR
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My research interests include trout and salmon ecology, invasive species, fish behavior, individual-based models, and the effects of land use and climate change on fish.
Gordie Reeves Reeves, Gordon
Research Fish Biologist
PNW Research Station,
Corvallis, OR
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My research interests focus on: (1) the ecology and life-history variation of native fish; (2) development and application of monitoring protocols; (3) conservation biology for aquatic ecosystems and organisms; and (4) climate change and aquatic ecosystems, with particular impacts on phenology. My work in primarily in the PNW and Alaska. I have faculty appointments at Oregon State University, the University of Washington, and Humboldt State University.
Kathryn Ronnenberg Ronnenberg, Kathryn
Research Information Assistant
PNW Research Station,
Corvallis, OR
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I provide graphic design and technical editing support to the research team, including figure, poster, and slide design, publication layout, and production editing for large projects. Current research projects include the Global Bd (Batrachochytrium dendrobatidis) Mapping Project, Dede Olson, PI, for which I am a data curator (Batrachochytrium dendrobatidis and Bd Mapping).
Matt Sloat headshot photo Sloat, Matt
Research Fish Biologist
Oregon State University
Corvallis, OR
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I am an aquatic ecologist with broad research interests in the biological and physical processes that influence stream geomorphology, hydrology, temperature, and aquatic communities. My current research is focused on (1) behavioral and physiological ecology of fish; (2) Pacific salmon life histories and population demography; and (3) linkages between streams and landscapes and their response to climate change.
Ken Vance-Borland
Vance-Borland, Ken
Senior Faculty Research Assistant
Oregon State University,
Corvallis, OR
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Sustaining healthy ecosystems and human communities in the face of global change is a complex problem. I approach this challenge with social network mapping and analysis tools to discover who has (and has not) been working together, and with network weaving processes for building new collaborations. When people exchange ideas with new partners, innovative solutions emerge. I’m also a spatial analyst, using GIS and satellite imagery to help researchers map streams and fish habitat; predict locations that might provide good habitat for salmon; and study how things like forestry, fires, and climate change may influence that habitat quality and the salmon populations that depend on it.
Associates
Ashley Steel Steel, E. Ashley
Statistician / Quantitative Ecologist
PNW Research Station,
Seattle, WA
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I apply quantitative tools to study rivers and watersheds. My research has focused on (1) harnessing landscape-scale data to predict in-river conditions; (2) quantification and modeling of complex water temperature regimes; and (3) sensitivity analyses to support the best use of modeled data. I also enjoy collaborations that link ideas and tools developed in aquatic ecology to research on trees, wildlife, fire, and people.
Steve Wondzell Wondzell, Steve
Research Riparian Ecologist
Ecological Processes
and Functions Program,
PNW Research Station,
Corvallis, OR
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I am a riparian ecologist combining hydrology and geomorphology with ecology to better understand how physical processes within landscapes influence aquatic and riparian ecosystems. My specialties are stream-groundwater interactions (the hyporheic zone), hydrological linkages between landscapes and streams, and decision support models that help inform riparian management at large scales.
Ares Adrian Ares, Adrian
Former Research Associate
Oregon State University,
Corvallis, OR
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I have a wide range of research interests in forest ecology including impacts of fixed- and variable-density thinning on upland and riparian vegetation. I also work for a project aimed to determine thinning effects on water-use efficiency of riparian trees and understory plants using tree-ring analysis and stable carbon and hydrogen isotopes. (Currently: Director, Sustainable Agriculture and Natural Resource Management Collaborative Research Support Program, Virginia Tech, Blacksburg, VA)
Mark Meleason Meleason, Mark
Former Research Fish Biologist
PNW Research Station,
Corvallis, OR
As a riparian ecologist, I have explored forest/stream interactions such as the long-term consequences of forest management strategies on wood in streams. My current research includes how land-use changes influence the viability of Oregon’s coastal Coho populations. (Currently: Oregon Department of Forestry, 4742 Liberty Rd S, Box 312, Salem, OR 97302)
Agnieszka Przeszlowska
Przeszlowska, Agnieszka (Agnes)
Former Research Riparian Ecologist
PNW Research Station,
Olympia, WA
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My research focuses on the interactions between riparian vegetation and fluvial processes. I am interested in how land-use activities and the presence or absence of natural disturbances influence aquatic habitats. Other research interests include biogeochemical cycling, effects of ungulate hebivory, and application of remote sensing tools in riparian systems. (Currently: Uncompaghre Watershed Partnership Executive Director, Colorado)
Nicholas Som Som, Nicholas
Former Ecological Statistician
Oregon State University,
Corvallis, OR
I’m an ecological statistician specializing in spatial data analysis, and more specifically the spatial analysis of stream-network data. I’m interested in ways that spatial statistical parameters relate to landscape characteristics, like patches, and how to improve the ways that patterns of spatially distributed stream phenomenon can be measured and expressed. (Currently: US Fish and Wildlife Service, Arcata, California)