Search Results - "VOLK, CAROL"
-
1
Alteration of stream temperature by natural and artificial beaver dams
Published in PloS one (17-05-2017)“…Beaver are an integral component of hydrologic, geomorphic, and biotic processes within North American stream systems, and their propensity to build dams…”
Get full text
Journal Article -
2
Why is Data Sharing in Collaborative Natural Resource Efforts so Hard and What can We Do to Improve it?
Published in Environmental management (New York) (01-05-2014)“…Increasingly, research and management in natural resource science rely on very large datasets compiled from multiple sources. While it is generally good to…”
Get full text
Journal Article -
3
Projected Climate-Induced Habitat Loss for Salmonids in the John Day River Network, Oregon, U.S.A
Published in Conservation biology (01-10-2012)“…Climate change will likely have profound effects on cold-water species of freshwater fishes. As temperatures rise, cold-water fish distributions may shift and…”
Get full text
Journal Article -
4
A suction pump sampler for invertebrate drift detects exceptionally high concentrations of small invertebrates that drift nets miss
Published in Hydrobiologia (01-05-2022)“…Invertebrate drift is a key process in riverine ecosystems controlling aquatic invertebrate distribution and availability to fish as prey. However, accurately…”
Get full text
Journal Article -
5
Accurate spatiotemporal predictions of daily stream temperature from statistical models accounting for interactions between climate and landscape
Published in PeerJ (San Francisco, CA) (12-11-2019)“…Spatial and temporal patterns in stream temperature are primary factors determining species composition, diversity and productivity in stream ecosystems. The…”
Get full text
Journal Article -
6
Developing an Effective Model for Predicting Spatially and Temporally Continuous Stream Temperatures from Remotely Sensed Land Surface Temperatures
Published in Water (Basel) (01-12-2015)“…Although water temperature is important to stream biota, it is difficult to collect in a spatially and temporally continuous fashion. We used remotely-sensed…”
Get full text
Journal Article -
7
Using Inverse Probability Bootstrap Sampling to Eliminate Sample Induced Bias in Model Based Analysis of Unequal Probability Samples
Published in PloS one (30-06-2015)“…In ecology, as in other research fields, efficient sampling for population estimation often drives sample designs toward unequal probability sampling, such as…”
Get full text
Journal Article -
8
A simple, interactive GIS tool for transforming assumed total station surveys to real world coordinates – the CHaMP transformation tool
Published in Computers & geosciences (01-05-2012)“…Increasingly, geoscientists and biologists are monitoring the natural environment with total station and terrestrial laser scanning surveys. Due to the remote…”
Get full text
Journal Article -
9
Nutrient Limitation in Red Alder (Alnus Rubra) and Conifer Forested Streams of Western Washington State, U.S.A
Published in The American midland naturalist (01-01-2008)“…The extent and type of vegetation within watersheds are critical factors influencing stream water chemistry, specifically nitrogen and phosphorus…”
Get full text
Journal Article -
10
Using Beaver Dams to Restore Incised Stream Ecosystems
Published in Bioscience (01-04-2014)“…Biogenic features such as beaver dams, large wood, and live vegetation are essential to the maintenance of complex stream ecosystems, but these features are…”
Get full text
Journal Article -
11
Ecosystem experiment reveals benefits of natural and simulated beaver dams to a threatened population of steelhead (Oncorhynchus mykiss)
Published in Scientific reports (04-07-2016)“…Beaver have been referred to as ecosystem engineers because of the large impacts their dam building activities have on the landscape; however, the benefits…”
Get full text
Journal Article -
12
Life Cycle Model Reveals Sensitive Life Stages and Evaluates Recovery Options for a Dwindling Pacific Salmon Population
Published in North American journal of fisheries management (01-02-2023)“…Population models, using empirical survival rate estimates for different life stages, can help managers explore whether various management options could…”
Get full text
Journal Article -
13
Comparison of fatty acids and elemental nutrients in periphyton, invertebrates, and cutthroat trout (Oncorhynchus clarki) in conifer and alder streams of western Washington state
Published in Aquatic ecology (01-03-2012)“…Organism growth and reproduction are often limited by nutrient availability in freshwater ecosystems where, in some cases, food webs are primarily supported by…”
Get full text
Journal Article -
14
Mapping valley bottom confinement at the network scale
Published in Earth surface processes and landforms (01-07-2019)“…In this article, we demonstrate the application of a continuous confinement metric across entire river networks. Confinement is a useful metric for…”
Get full text
Journal Article -
15
How do we efficiently generate high-resolution hydraulic models at large numbers of riverine reaches?
Published in Computers & geosciences (01-10-2018)“…In support of efforts to quantify relationships between juvenile salmonid habitat and population dynamics in the Pacific Northwest, over 2200 hydraulic models…”
Get full text
Journal Article -
16
Crew variability in topographic surveys for monitoring wadeable streams: a case study from the Columbia River Basin
Published in Earth surface processes and landforms (01-12-2014)“…ABSTRACT Digital elevation models (DEMs) derived from ground‐based topographic surveys have become ubiquitous in the field of fluvial geomorphology. Their wide…”
Get full text
Journal Article -
17
Correction: Corrigendum: Ecosystem experiment reveals benefits of natural and simulated beaver dams to a threatened population of steelhead (Oncorhynchus mykiss)
Published in Scientific reports (05-06-2018)“…Scientific Reports 6: Article number: 28581; published online: 04 July 2016; updated: 05 June 2018 This Article contains an error, where Supplementary…”
Get full text
Journal Article -
18
Evaluation of dryland riparian restoration with cottonwood and willow using deep-planting and herbivore protection
Published in Ecosphere (Washington, D.C) (01-12-2015)“…Degradation of dryland riparian ecosystems has been linked to the lowering of alluvial groundwater tables and reduced floodplain connectivity. Establishing…”
Get full text
Journal Article -
19
Projected Climate-Induced Habitat Loss for Salmonids in the John Day River Network, Oregon, U.S.A.; Proyección de la Pérdida de Hábitat de Salmónidos Inducida por el Clima con Base en un Red de Modelos de la Temperatura de Arroyos
Published in Conservation biology (01-10-2012)“…Climate change will likely have profound effects on cold-water species of freshwater fishes. As temperatures rise, cold-water fish distributions may shift and…”
Get full text
Journal Article -
20
Projected Climate-Induced Habitat Loss for Salmonids in the John Day River Network, Oregon, U.S.A.Proyeccion de la Perdida de Habitat de Salmonidos Inducida por el Clima con Base en un Red de Modelos de la Temperatura de Arroyos
Published in Conservation biology (01-10-2012)“…Climate change will likely have profound effects on cold-water species of freshwater fishes. As temperatures rise, cold-water fish distributions may shift and…”
Get full text
Journal Article