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ID: Mammals Research pub covers
Mammals Research pub covers
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Subjects:
Item
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Mammals Research pub covers
ID: Mammals Research Summary Reports (2024-present)
Mammals Research Summary Reports (2024-present)
Type:
Subjects:
Item
view first image of Mammals Research Summary Reports (2024-present)
Mammals Research Summary Reports (2024-present)
Description:Published under title: Mammals Research Summary Reports (2024-present).Continues: Wildlife Research Reports. Mammals (2001-2023)Print copy: Federal Aid binders
ID: Managing mercury in sport fish: triploid walleye bioaccumulate less mercury
Managing mercury in sport fish: triploid walleye bioaccumulate less mercury
Type: Fact Sheet
Subjects: Triploid walleye
Contaminants
Fishing
Fact sheet
Item
view first image of Managing mercury in sport fish: triploid walleye bioaccumulate less mercury
Managing mercury in sport fish: triploid walleye bioaccumulate less mercury
Type:Fact Sheet
Subject:Triploid walleye
Contaminants
Fishing
Fact sheet
Description:According to the U.S. Food and Drug Administration, fish are part of a healthy diet, providing lean protein, healthy omega-3 fatty acids, iron, and more vitamin B12 and vitamin D than any other food. Although fish are an excellent source of protein, integration of mercury into lake and stream food webs results in traces of mercury being present in fish, sometimes at levels that present health concerns to people who consume fish regularly. Because mercury levels increase as you move up the food chain (i.e., ‘bioaccumulate’), concentrations are highest in top predators such as walleye. Through monitoring and research, both the Colorado Department of Public Health and Environment and Colorado Parks and Wildlife(CPW) work to help anglers maximize the benefits of consuming fish while protecting themselves and their families from mercury in the environment. [show more]
ID: Mat Alldredge, Wildlife Research Scientist
Mat Alldredge, Wildlife Research Scientist
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Subjects:
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Mat Alldredge, Wildlife Research Scientist
Description:

Wildlife Research Scientist, Carnivores ​

Current or Recent Research Projects

Areas of Interest and Expertise

My research interest focuses on large carnivore and ungulate ecology, population parameter estimation, habitat use, avian ecology and population sampling. 

Streaming Videos

Mountain lions in Colorado – a 4 part series

Select Publications

Education

  • Ph.D., Zoology and Biomathematics — North Carolina State University, 2004
  • M.S., Biomathematics — North Carolina State University, 2002
  • M.S., Wildlife Resources — University of Idaho, 1999
  • B.S., Mechanical Engineering — University of Colorado, 1994

Current or Recent Positions

  • Wildlife Researcher — Colorado Parks and Wildlife, 2006-Present
  • Post-Doctoral Researcher — USGS Cooperative Fish and Wildlife Research Unit, North Carolina State University, 2004-2006
  • Carnivore Biologist —Wyoming Game and Fish Department, 1995
 [show more]
ID: Matthew C. Kondratieff
Matthew C. Kondratieff
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Matthew C. Kondratieff
Description:Aquatic Research Scientist Stream Habitat Investigations

Contact Information

matt.kondratieff@state.co.us​

Education

  • M.S. Fishery and Wildlife Biology — Colorado State University, 2004
  • B.S. Wildlife, Fisheries, and Conservation Biology — University of California, Davis, 1996

Current or Recent Positions

  • Aquatic Research Scientist — Colorado Parks and Wildlife, 2006-Present
  • Fisheries Biologist — Wyoming Game and Fish, 2003-2006
  • Graduate Research Assistant — Colorado State University, 2000-2003

Current or Recent Research Projects

  • Monitoring fisheries, habitat, and angler response to habitat improvement techniques
  • Whitewater park hydraulics: implications for fish habitat and passage
  • Monitoring and evaluating upstream passage of fishes at in-stream obstacles
  • Evaluating and designing barriers to protect native cutthroat trout
  • Post-flood opportunities for fish habitat and passage improvement on the Front Range
  • Long-term evaluation of habitat improvement projects on the Upper South Platte River
  • Development of fish swimming and leaping performance criteria for Colorado fishes
  • Development and evaluation of a mobile RFID-GPS system
  • Stream habitat restoration projects with the Vocational Heavy Construction Technology Program (Buena Vista Correctional Facility)

Areas of Interest/Expertise

  • Fish passage and barriers
  • Aquatic habitat assessments
  • Stream restoration and habitat enhancement techniques
  • Project monitoring and evaluation
  • Fish swimming and leaping performance

Selected PublicationsRicher, 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. Harman, W., T-L. Nadeau, B. Topping, B., A. James, M. C. Kondratieff, K. Boyd, G. Athanasakes, and J. Wheaton. 2021. Stream Mitigation Accounting Metrics: Exploring the use of linear-based, area-based, and volume units of measure to calculate impacts and offsets to different stream archetypes. EPA 840-R-21-003. U.S. Environmental Protection Agency, Washington, D. C.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.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.Walters, D. M., J. S. Wesner, R. E. Zuellig, D. A. Kowalski, and M. C. Kondratieff. 2018. Holy flux: spatial and temporal variation in massive pulses of emerging insect biomass from western U.S. rivers. Ecology 99(1): 238-240.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.

Fox, B. D., B. P. Bledsoe, E. Kolden, M. C. Kondratieff, and C. A. Myrick. 2016. Eco-hydraulic evaluation of whitewater parks as a fish passage barrier.  Journal of the American Water Resources Association. 

Kolden, E., B. D. Fox, B. P. Bledsoe, and M. C. Kondratieff. 2016. Modelling whitewater park hydraulics and fish habitat in Colorado. River Research and Applications. 

Stephens, T. A., B. P. Bledsoe, B. D. Fox, E. Kolden, and M. C. Kondratieff. 2016. Effects of whitewater parks on fish passage: a spatially explicit hydraulic analysis. Ecological Engineering. 83 (2015) 305–318.

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, Aquatic Research Section. Fort Collins, Colorado.

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.

Kondratieff, M. C. 2012. Stream habitat investigations and assistance. Job Progress Report. Federal Aid Project F-161-R17. Colorado Division of Wildlife. Fort Collins.

Ficke, A. D., C. A. Myrick, and M. C. Kondratieff. 2012. The effects of PIT tagging on the swimming performance and survival of three nonsalmonid freshwater fishes. Ecological Engineering 48:86-91.Kondratieff, M. C. 2011. Stream habitat investigations and assistance. Job Progress Report. Federal Aid Project F-161-R17. Colorado Division of Wildlife. Fort Collins.Kondratieff, M. C. 2007. Vocational Heavy Construction Technology Program: A Comprehensive Plan including Program Needs and Future Directions.  CPW Whitepaper.Kondratieff, M. C., and C. A. Myrick. 2006. How high can brook trout jump? A laboratory evaluation of brook trout jumping performance.​Transactions of the American Fisheries Society 135:361-370.​Brandt, M. M., P. Holloway, C. A. Myrick, and M. C. Kondratieff. 2005. Effects of waterfall dimensions and light intensity on age-0 brook trout jumping performance. Transactions of the American Fisheries Society 134:496-502.Kondratieff, M. C., and C. A. Myrick. 2005. Two adjustable waterfalls for evaluating fish jumping performance. Transactions of the American Fisheries Society 134:503-508.​​Myrick, C. A., and M. C. Kondratieff. 2004. An evaluation of a potential barrier to the upstream movement of brook tr​out in Rocky Mountain National Park, Colorado.​ National Park Service Technical Report NPS/NRWRD/NRTR-2005/337

 [show more]
ID: Michelle Gallagher, Program Assistant
Michelle Gallagher, Program Assistant
Type:
Subjects:
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Michelle Gallagher, Program Assistant
Description:

Mammals Research Section Program Assistant

Responsibilities

Regulatory and procedural compliance processes for Colorado Parks and Wildlife Animal Care and Use Committee, financial support, publishing support, and event planning. 

Education

Colorado State University - BFA

Current or Recent Positions

  • Program Assistant I — Mammals Research Program, Colorado Parks and Wildlife, 2017-Present
  • Program Assistant I — Terrestrial Wildlife Programs, Colorado Parks and Wildlife, 2005-2017
  • Administrative Assistant III — Terrestrial Wildlife Programs, Colorado Division of Wildlife, 2000-2005
  • Administrative Assistant III — Area 9, Hot Sulphur Springs, Colorado Division of Wildlife, 1992-2000

​Contact Information

317 W. Prospect Rd.Fort Collins, CO 80526Phone: (970) 472-4383 [show more]
ID: Migrating mule deer: effects of anthropogenically altered landscapes
Migrating mule deer: effects of anthropogenically altered landscapes
Type: Article
Subjects: Migration
<em>Odocoileus hemionus</em>
Northwestern Colorado
Oil and gas development
Item
view first image of Migrating mule deer: effects of anthropogenically altered landscapes
Migrating mule deer: effects of anthropogenically altered landscapes
Type:Article
Subject:Migration
<em>Odocoileus hemionus</em>
Northwestern Colorado
Oil and gas development
Description:Background: Migration is an adaptive strategy that enables animals to enhance resource availability and reduce risk of predation at a broad geographic scale. Ungulate migrations generally occur along traditional routes, many of which have been disrupted by anthropogenic disturbances. Spring migration in ungulates is of particular importance for conservation planning, because it is closely coupled with timing of parturition. The degree to which oil and gas development affects migratory patterns, and whether ungulate migration is sufficiently plastic to compensate for such changes, warrants additional study to better understand this critical conservation issue.Methodology/Principal Findings: We studied timing and synchrony of departure from winter range and arrival to summer range of female mule deer (Odocoileus hemionus) in northwestern Colorado, USA, which has one of the largest natural-gas reserves currently under development in North America. We hypothesized that in addition to local weather, plant phenology, and individual life-history characteristics, patterns of spring migration would be modified by disturbances associated with natural-gas extraction. We captured 205 adult female mule deer, equipped them with GPS collars, and observed patterns of spring migration during 2008–2010.Conclusions/Significance: Timing of spring migration was related to winter weather (particularly snow depth) and access to emerging vegetation, which varied among years, but was highly synchronous across study areas within years. Additionally, timing of migration was influenced by the collective effects of anthropogenic disturbance, rate of travel, distance traveled, and body condition of adult females. Rates of travel were more rapid over shorter migration distances in areas of high natural-gas development resulting in the delayed departure, but early arrival for females migrating in areas with high development compared with less-developed areas. Such shifts in behavior could have consequences for timing of arrival on birthing areas, especially where mule deer migrate over longer distances or for greater durations. [show more]
ID: Migration patterns of adult female mule deer in response to energy development
Migration patterns of adult female mule deer in response to energy development
Type: Article
Subjects: Migration
Mule deer
Parturition
<em>Odocoileus hemionus</em>
Oil and gas development
Northwest Colorado
South-central Wyoming
Item
view first image of Migration patterns of adult female mule deer in response to energy development
Migration patterns of adult female mule deer in response to energy development
Type:Article
Subject:Migration
Mule deer
Parturition
<em>Odocoileus hemionus</em>
Oil and gas development
Northwest Colorado
South-central Wyoming
Description:Migration is an adaptive strategy that enables animals to enhance resource availability and reduce risk of predation at a broad geographic scale. Ungulate migrations generally occur along traditional routes, many of which have been disrupted by anthropogenic disturbances. Spring migration in ungulates is of particular importance for conservation planning because it is closely coupled with timing of parturition. The degree to which oil and gas development affects migratory patterns, and whether ungulate migration is sufficiently prepared to compensate for such changes, has recently been investigated in Colorado and Wyoming (Lendrum et al. 2012, 2013; Sawyer et al. 2012).Lendrum et al. (2012, 2013) and Sawyer et al. (2012) address mule deer (Odocoileus hemionus) migration patterns in relation to energy development from northwest Colorado and south-central Wyoming, respectively. We address results from the Colorado and Wyoming studies and then compare similarities and differences. Management and conservation implications are proposed for consideration and future investigation. [show more]
ID: Mitigating Impacts of Energy Development on Piceance Basin Mule Deer Populations
Mitigating Impacts of Energy Development on Piceance Basin Mule Deer Populations
Type:
Subjects:
Item
view first image of Mitigating Impacts of Energy Development on Piceance Basin Mule Deer Populations
Mitigating Impacts of Energy Development on Piceance Basin Mule Deer Populations
Description:

Lead ResearcherChuck Anderson

Study AreaPiceance Basin — located between the cities of Rangely, Meeker and Rifle in northwest Colorado.

Project StatusCompleted: Final progress report

Research Objectives

  • To determine the effects of energy development on mule deer behavior and population trends.
  • To determine if habitat improvements benefit mule deer populations exposed to energy development activities.
  • To identify energy development practices that will minimize impacts to mule deer populations. ​​

Project Description

Energy development in western Colorado has the potential to negatively impact mule deer populations. These impacts include habitat fragmentation and destruction, increased deer-vehicle collisions, increased noise levels, and more. Thus, this project aims to identify habitat improvements and energy development practices that will sustain mule deer populations for future recreational and ecological values.

Researchers selected the Piceance Basin as the project's study area because the basin contains some of the largest natural gas reserves in North America. Piceance is also home to one of Colorado's most important mule deer populations.

During this long-term project, researchers will track mule deer habitat use and behavior, observe animal health throughout the winter season, monitor fawn survival and estimate mule deer populations in the study area. Finally, researchers will determine the success of different habitat improvements in reducing disturbances caused by energy development and in improving winter condition of mule deer.

The results of this project will show wildlife managers and energy developers if it is ecologically and financially valuable to mitigate disturbances in highly developed areas versus focusing efforts in nearby less or non-impacted areas.

Collaborators for this multi-million dollar project include BLM, Colorado State University, Idaho State University, and multiple energy corporations and sportspeople's organizations.

Resources:

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ID: Modeling elk-to-livestock transmission risk to predict hotspots of brucellosis spillover
Modeling elk-to-livestock transmission risk to predict hotspots of brucellosis spillover
Type: Article
Subjects: Brucella abortus
Cervus canadensis
Cross-species pathogen spillover
Greater Yellowstone Ecosystem
Habitat selection
Human-wildlife conflict
Resource selection function
Wildlife disease
Item
view first image of Modeling elk-to-livestock transmission risk to predict hotspots of brucellosis spillover
Modeling elk-to-livestock transmission risk to predict hotspots of brucellosis spillover
Type:Article
Subject:Brucella abortus
Cervus canadensis
Cross-species pathogen spillover
Greater Yellowstone Ecosystem
Habitat selection
Human-wildlife conflict
Resource selection function
Wildlife disease
Description:Wildlife reservoirs of infectious disease are a major source of human-wildlife conflict because of the risk of potential spillover associated with commingling of wildlife and livestock. In the Greater Yellowstone Ecosystem, the presence of brucellosis (Brucella abortus) in free-ranging elk (Cervus canadensis) populations is of significant management concern because of the risk of disease transmission from elk to livestock. We identified how spillover risk changes through space and time by developing resource selection functions using telemetry data from 223 female elk to predict the relative probability of female elk occurrence daily during the transmission risk period. We combined these spatiotemporal predictions with elk seroprevalence, demography, and transmission timing data to identify when and where abortions (the primary transmission route of brucellosis) were most likely to occur. Additionally, we integrated our predictions of transmission risk with spatiotemporal data on areas of potential livestock use to estimate the daily risk to livestock. We predicted that approximately half of the transmission risk occurred on areas where livestock may be present (i.e., private property or grazing allotments). Of the transmission risk that occurred in livestock areas, 98% of it was on private ranchlands as opposed to state or federal grazing allotments. Disease prevalence, transmission timing, host abundance, and host distribution were all important factors in determining the potential for spillover risk. Our fine-resolution (250-m spatial, 1-day temporal), large-scale (17,732 km2) predictions of potential elk-to-livestock transmission risk provide wildlife and livestock managers with a useful tool to identify higher risk areas in space and time and proactively focus actions in these areas to separate elk and livestock to reduce spillover risk. [show more]