561 items found
Aquatic Research ScientistHydrologist, Stream Habitat Investigations
Contact Information
Education
- M.S., Watershed Science — Colorado State University, 2009
- B.S., Fisheries and Wildlife Biology — Kansas State University, 2001
Current or Recent Positions
- Aquatic Research Scientist — Hydrologist, Colorado Parks and Wildlife, 2012-Present
- Aquatic Instrument Engineer — Hydrologist, National Ecological Observatory Network, Inc., 2011-2012
- Program Manager — Research Associate III, Colorado State University, 2009-2011
- Graduate Research Assistant — Colorado State University, 2008-2009
- Fisheries Management Specialist — US Peace Corps, 2004-2006
Current or Recent Research Projects
- Upper Arkansas River Habitat Enhancement Evaluation
- South Platte River Stream Restoration and Habitat Enhancement
- Gunnison River and Riparian Rehabilitation Project
- Aquatic Habitat Restoration Studies
- Fish Passage and Barrier Studies
- Whitewater Park Studies
Areas of Interest/Expertise
- Hydrologic analysis and modeling
- Aquatic habitat assessments
- Stream restoration and habitat enhancement design
- Project monitoring and evaluation
Selected Publications
Richer, E. E., S. Graf, and M. C. Kondratieff. 2024. Evaluating the performance of instream structures for a stream restoration project in Colorado. River Research and Applications 40(3): 308–321. Kotalik, C. J., B. A. Wolff, J. P. F. Pomeranz, E. E. Richer, and W. H. Clements. 2023. Bioenergetic responses of a stream food web to habitat restoration: interactions between Brown Trout and invertebrate prey resources. Restoration Ecology. Cubley, E. S., E. E. Richer, D. W. Baker, C. G. Lamson, T. L. Hardee, B. P. Bledsoe, and P. L. Kulchawik. 2021. Restoration of riparian vegetation on a mountain river degraded by historical mining and grazing. River Research and Applications 38:80-93.Richer, E. E., M. C. Kondratieff, G. Policky, M. D. Robinson, M. Atwood, and M. R. Myers. 2021. From gold mining to gold medal fishery: evaluating the fishery response to stream restoration on the upper Arkansas River, Colorado. North American Journal of Fisheries Management 42:24-36.Kowalski, D. A. and E. E. Richer. 2020. Quantifying the habitat preferences of the stonefly Pteronarcys californica in Colorado. River Research and Applications 36:2043-2050. Richer, E. E., E. R. Fetherman, E. A. Krone, F. B. Wright III, and M. C. Kondratieff. 2020. Multispecies fish passage evaluation at a rock-ramp fishway in a Colorado transition zone stream. North American Journal of Fisheries Management 40:1510-1522.Richer, E. E., E. A. Gates, M. C. Kondratieff, and A. T. Herdrich. 2019. Modelling changes in trout habitat following stream restoration. River Research and Applications 35:680-691.Richer, E. E., E. R. Fetherman, M. C. Kondratieff, and T. A. Barnes. 2017. Incorporating GPS and mobile radio frequency identification to detect PIT-tagged fish and evaluate habitat utilization in streams. North American Journal of Fisheries Management 37(6):1249-1264.Richer, E.E., M.C. Kondratieff, and B.D. Swigle. 2015. Post-flood recovery assessment and stream restoration guidelines for the Colorado Front Range. Colorado Parks and Wildlife, Fort Collins, Colorado.
Kondratieff, M.C. and E.E. Richer. 2014. Stream Habitat Investigations and Assistance, Job Progress Report. Colorado Parks and Wildlife, Fort Collins, Colorado.
Moore, C., S. Kampf, B. Stone, and E. Richer. 2014. A GIS-based method for defining snow zones: application to the western United States. Geocarto International 30(1): 62-81.
Kampf, S. and E. Richer. 2014. Estimating source regions for snowmelt runoff in a Rocky Mountain watershed: comparison of conceptual runoff models driven by snow cover or snow water equivalent. Hydrological Processes 28: 2237-2250.
Kondratieff, M.C. and E.E. Richer. 2013. Stream Habitat Investigations and Assistance, Job Progress Report. Colorado Parks and Wildlife, Fort Collins, Colorado. 103 pp.
Richer, E.E., S.K. Kampf, S.R. Fassnacht, and C.C. Moore. 2013. Spatiotemporal index for analyzing controls on snow climatology: Application in the Colorado Front Range. Physical Geography 34(2): 85-107.
Baron, J.S., C.T. Driscoll, J.L. Stoddard, and E.E. Richer. 2011. Empirical critical loads of atmospheric nitrogen deposition for nutrient enrichment and acidification of sensitive US lakes. Bioscience 61(8): 602-613.
Richer, E.E. and J.S. Baron. 2011. Loch Vale Watershed Long-term Ecological Research and Monitoring Program: Quality Assurance Report, 2003-09: U.S. Geological Survey Open-File Report 2011-1137, 22 p.
Richer, E., J. Botte, and J. Baron. 2011. Loch Vale Watershed Long-term Research and Monitoring Program: Methods Manual 2011. Colorado State University, 95 pp.
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Contact Information
317 W Prospect RoadFort Collins, CO 80526Office: 970-472-4436Cell: 970-481-3225E-mail:Education
- Ph.D., Fish, Wildlife and Conservation Biology — Colorado State University. 2013
- M.S., Fishery Biology — Colorado State University, 2009
- B.S., Fishery Biology — Colorado State University, 2006
- B.S., Wildlife Biology — Colorado State University, 2006
Current or Recent Positions
- Aquatic Research Scientist — Colorado Parks and Wildlife, 2011-Current
- Graduate Research Assistant (Ph.D.) — Colorado Cooperative Fish and Wildlife Research Unit, Colorado State University, 2009-2013
- Graduate Research Assistant (M.S.) — Colorado Cooperative Fish and Wildlife Research Unit, Colorado State University, 2006-2009
- Teaching Assistant — Colorado State University, 2005, 2006, 2008, 2010, 2011
Current or Recent Research Projects
- Whirling disease resistant rainbow trout introductions
- Optimizing rainbow trout production in CPW hatcheries
- Wild rainbow trout brood stock development
- Wild trout population dynamics, survival and movement
Areas of Interest/Expertise
- Fish disease
- Fish physiology
- Fish culture
- Fish ecology
Publications
Avila, B. W., D. L. Winkelman, and E. R. Fetherman. 2023. Biotic and abiotic factors affecting survival of two Rainbow Trout strains in streams in Colorado. North American Journal of Fisheries Management 43(3): 786-793. Erickson, T. A., G. J. Schisler, and E. R. Fetherman. 2023. Post-stocking survival and myxospore evaluation of whirling disease resistant rainbow trout strains. North American Journal of Fisheries Management 43:586-599.Fetherman, E. R., B. Neuschwanger, C. Praamsma, and T. Davis. 2023. Concentration, life stage, feeding, density, flow, and strain effects on formalin sensitivity in rainbow trout (Oncorhynchus mykiss). Animals 13(15):2425. Kopack, C. J., E. D. Broder, E. R. Fetherman, R. M. Fitzpatrick, and L. M. Angeloni. 2023. Assessing antipredator behavior and the potential to enhance it in a species of conservation concern. North American Journal of Aquaculture 85:136-145.Kopack, C. J., E. R. Fetherman, E. D. Broder, R. M. Fitzpatrick, and L. M. Angeloni. 2023. The effects of abiotic enrichment and predator training on the behavior,morphology, and survival of a species of conservation concern. Conservation Science and Practice, e12999. Riepe, T. B., E. R., Fetherman, B. Neuschwanger, T. Davis, A. Perkins, and D. L. Winkelman. 2023. Vertical transmission of Renibacterium salmoninarum in hatchery-reared Cutthroat Trout (Oncorhynchus clarkii). Journal of Fish Diseases 46(4): 309-319. Avila, B. W., K. P. Huyvert, D. L. Winkelman, and E. R. Fetherman. 2022. Factors affecting post-challenge survival of Flavobacterium psychrophilum in susceptible Rainbow Trout from the literature. Pathogens 11:1318. Avila, B. W., D. L. Winkelman, and E. R. Fetherman. 2022. Dual resistance to Flavobacterium psychrophilum and Myxobolus cerebralis in rainbow trout (Oncorhynchus mykiss, Walbaum). Journal of Fish Diseases 2022:1-13. Fetherman, E. R., and B. W. Avila. 2022. Habitat associations of rainbow trout Oncorhynchus mykiss and brown trout Salmo trutta fry. Journal of Fish Biology 100:51-61.Riepe, T. B., V. Vincent, V. Milano, E. R. Fetherman, and D. L. Winkelman. 2021. Evidence for the use of mucus swabs to detect Renibacterium salmoninarum in brook trout. Pathogens 10(4), 460. Fetherman, E. R., B. Neuschwanger, T. Davis, C. L. Wells, and A. Kraft. 2020. Efficacy of Erymicin 200 injections for reducing Renibacterium salmoninarum and controlling vertical transmission in an inland rainbow trout brood stock. Pathogens 2020, 9(7), 547.
Richer, E. E., E. R. Fetherman, E. A. Krone, F. B. Wright III, and M. C. Kondratieff. 2020. Multispecies fish passage evaluation at a rock-ramp fishway in a Colorado transition zone stream. North American Journal of Fisheries Management 40:1510-1522.Fetherman, E. R., P. Cadmus, A. L. Jefferson, and M. K. Hura. 2019. Increasing copper concentrations do not affect Myxobolus cerebralis triactinomyxon viability. Journal of Fish Diseases 42:1327-1331. Avila, B. W., D. L. Winkelman, and E. R. Fetherman. 2018. Survival of whirling-disease- resistant rainbow trout fry in the wild: A comparison of two strains. Journal of Aquatic Animal Health 30:280-290. Hodge, B. W., E. R. Fetherman, K. B. Rogers, and R. Henderson. 2017. Effectiveness of a fishway for restoring passage of Colorado River cutthroat trout. North American Journal of Fisheries Management 37(6):1332-1340.
Richer, E. E., E. R. Fetherman, M. C. Kondratieff, and T. A. Barnes. 2017. Incorporating GPS and mobile radio frequency identification to detect PIT-tagged fish and evaluate habitat utilization in streams. North American Journal of Fisheries Management 37(6):1249-1264.
Fetherman, E. R., J. A. Wardell, C. J. Praamsma, and M. K. Hura. 2016. Critical dissolved oxygen tolerances of whirling disease-resistant rainbow trout. North American Journal of Aquaculture 78:366-373.
Kopack, C. J., E. D. Broder, E. R. Fetherman, J. M. Lepak, and L. M. Angeloni. 2016. The effect of a single prerelease exposure to conspecific alarm cue on poststocking survival in three strains of rainbow trout (Oncorhynchus mykiss). Canadian Journal of Zoology 94(9): 661-664.
Stout, J. B., B. W. Avila, and E. R. Fetherman. 2016. Efficacy of commercially available quaternary ammonium compounds for controlling New Zealand mudsnails, Potamopyrgus antipodarum. North American Journal of Fisheries Management 36:277-284.
Fetherman, E. R., J. M. Lepak, B. L. Brown, and D. J. Harris. 2015. Optimizing time of initiation for triploid walleye production using pressure shock treatment. North American Journal of Aquaculture 77:471-477.
Kopack, C. J., E. D. Broder, J. M. Lepak, E. R. Fetherman, and L. M. Angeloni. 2015. Behavioral responses of a highly domesticated, predator naïve rainbow trout to chemical cues of predation. Fisheries Research 169:1-7.
Fetherman, E. R., D. L. Winkelman, L. L. Bailey, G. J. Schisler, and K. Davies. 2015. Brown trout removal effects on short-term survival and movement of Myxobolus cerebralis-resistant rainbow trout. Transactions of the American Fisheries Society 144:610-626.
Fetherman, E. R., B. W. Avila, and D. L. Winkelman. 2014. Raft and floating radio frequency identification (RFID) antenna systems for detecting and estimating abundance of PIT-tagged fish in rivers. North American Journal of Fisheries Management 34:1065-1077.
Fetherman, E. R., D. L. Winkelman, M. R. Baerwald, and G. J. Schisler. 2014. Survival and reproduction of Myxobolus cerebralis resistant rainbow trout in the Colorado River and increased survival of age-0 progeny. PLoS ONE 9(5):e96954.
Fetherman, E. R. 2013. Introduction and management of Myxobolus cerebralis-Resistant Rainbow Trout in Colorado. Ph.D. dissertation. Department of Fish, Wildlife and Conservation Biology, Colorado State University, Fort Collins, CO.
Fetherman, E. R., and J. M. Lepak. 2013. Addressing depletion failure and estimating gear efficiency using back-calculation of capture probabilities. Fisheries Research 147: 284-289.
Fetherman, E. R., D. L. Winkelman, G. J. Schisler, and M. F. Antolin. 2012. Genetic basis of differences in myxospore count between whirling disease-resistant and -susceptible strains of rainbow trout. Diseases of Aquatic Organisms 102:97-106.
Lepak, J. M., E. R. Fetherman, W. M. Pate, C. Craft, and E. I. Gardunio. 2012. An experimental approach to determine esocid prey preference in replicated pond systems. Lake and Reservoir Management 28:224-231.
Lepak, J. M., K. D. Kinzli, E. R. Fetherman, W. M. Pate, A. G. Hansen, E. I. Gardunio, C. N. Cathcart, W. L. Stacy, Z. E. Underwood, M. M. Brandt, C. A. Myrick, and B. M. Johnson. 2012. Manipulation of growth to reduce mercury concentrations in sport fish on a whole-system scale. Canadian Journal of Fisheries and Aquatic Sciences 69(1):122-135.
Fetherman, E. R., D. L. Winkelman, G. J. Schisler, and C. A. Myrick. 2011. The effects of Myxobolus cerebralis on the physiological performance of whirling disease resistant and susceptible strains of rainbow trout. Journal of Aquatic Animal Health 23:169-177.
Fetherman, E. R. 2009. Heritability of myxospore count and the effects of Myxobolus cerebralis exposure on the physiological performance of whirling disease resistant and susceptible strains of rainbow trout. M.S. thesis, Department of Fish, Wildlife and Conservation Biology, Colorado State University, Fort Collins, CO.
Global Positioning System (GPS)
Predation model
Predation rate
Prey composition
Color
Wyoming
Global Positioning System (GPS)
Predation model
Predation rate
Prey composition
Color
Wyoming
Camera trap
Density estimation
Fragmentation
Illinois
<em>Lynx rufus</em>
Spatial capture–recapture model
Trap array
Camera trap
Density estimation
Fragmentation
Illinois
<em>Lynx rufus</em>
Spatial capture–recapture model
Trap array
Capture–recapture
Heterogeneous detection
Small population
Capture–recapture
Heterogeneous detection
Small population
Cervus canadensis
Cross-species pathogen spillover
Habitat selection
Human-wildlife conflict
Resource selection function
Wildlife disease
Cervus canadensis
Cross-species pathogen spillover
Habitat selection
Human-wildlife conflict
Resource selection function
Wildlife disease
Ground surveys
Detection probability (p)
Parturition
Recruitment
Ground surveys
Detection probability (p)
Parturition
Recruitment
Led ByKen Logan
Study AreaUncompahgre Plateau
Project StatusCompleted
Research Objectives
- To test biological assumptions used by CPW to manage mountain lion populations with recreational hunting.
- To examine effects of sport-hunting on lion population dynamics.
- To examine the genetics of a lion population.
- To develop tools wildlife managers can use to estimate lion abundance.
- To study lion diseases.
- To develop strategies for managing lion populations.
Research Description
Colorado Parks and Wildlife managers need reliable information on mountain lions in Colorado in order to develop management strategies that work to address public concerns and maintain healthy lion populations. However, the knowledge and tools needed to do so were limited, promoting this 10-year project.
The purpose of this study is to learn how sport-hunting impacts mountain lion population dynamics, develop tools for estimating lion abundance, and to develop strategies for managing lion populations. This knowledge will be provided to wildlife managers and to the public for application to lion management and conservation.
This project was designed with two 5-year periods, a reference period and a treatment period. In the reference period (completed 2004-2009), CPW closed the study area to mountain lion hunting. The reference period provided data on lion population dynamics without lion deaths caused by sport-hunting. During this time, researchers collected data on population abundance, sex and age structure, reproduction, and sources of mortality.
In the treatment period (2009-2014), researchers are manipulating the mountain lion population with sport hunting. The hunting treatment is designed to test assumptions CPW applies to other lion populations managed with sport-hunting in Colorado. The same type of data collected in the reference period is being collected in the treatment period for comparison.
In both study periods, researchers gathered mountain lion population characteristics by capturing, marking, radio-collaring, and tissue-sampling lions in the study area (e.g., skin, blood, saliva, tongues from dead lions). To date (August 2014), over 220 lions have been captured, marked, and sampled.
Moreover, in collaboration with researchers at Colorado State University and Oklahoma State University, CPW researchers have tested mountain lion tissues for diseases. CPW researchers are also collaborating with geneticists from Arizona State University to examine lion population genetics, relatedness, and reproductive success.
CPW expects the research findings to be applied to improve mountain lion management in Colorado and in public education and outreach. Associated Publications:Logan, K. A. and J. P. Runge. 2020. Effects of hunting on a puma population in Colorado. Colorado Parks and Wildlife. [show more]<div class="element-text"><em>Centrocercus urophasianus</em></div>
Parachute-Piceance-Roan (PPR) region
Wildlife management
Northwestern Colorado
<div class="element-text"><em>Centrocercus urophasianus</em></div>
Parachute-Piceance-Roan (PPR) region
Wildlife management
Northwestern Colorado
Genotyping
Cestode infection
Genotyping
Cestode infection