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Type: Article
Subjects: Camera trap
Idaho
Montana
Occupancy
Sampling rare species
Washington
Wolverine
Wyoming
Type:Article
Subject:Camera trap
Idaho
Montana
Occupancy
Sampling rare species
Washington
Wolverine
Wyoming
Description:In the western United States, wolverines (Gulo gulo) typically occupy high-elevation habitats. Because wolverine populations occur in vast, remote areas across multiple states, biologists have an imperfect understanding of this species' current distribution and population status. The historical extirpation of the wolverine, a subsequent period of recovery, and the lack of a coordinated monitoring program in the western United States to determine their current distribution further complicate understanding of their population status. We sought to define the limits to the current distribution, identify potential gaps in distribution, and provide a baseline dataset for future monitoring and analysis of factors contributing to changes in distribution of wolverines across 4 western states. We used remotely triggered camera stations and hair snares to detect wolverines across randomly selected 15-km × 15-km cells in Idaho, Montana, Washington, and Wyoming, USA, during winters 2016 and 2017. We used spatial occupancy models to examine patterns in wolverine distribution. We also examined the influence of proportion of the cell containing predicted wolverine habitat, human-modified land, and green vegetation, and area of the cluster of contiguous sampling cells. We sampled 183 (28.9%) of 633 cells that comprised a suspected wolverine range in these 4 states and we detected wolverines in 59 (32.2%) of these 183 sampled cells. We estimated that 268 cells (42.3%; 95% CI = 182–347) of the 633 cells were used by wolverines. Proportion of the cell containing modeled wolverine habitat was weakly positively correlated with wolverine occupancy, but no other covariates examined were correlated with wolverine occupancy. Occupancy rates (ψ) were highest in the Northern Continental Divide Ecosystem (ψ range = 0.8–1), intermediate in the Cascades and Central Mountains of Idaho (ψ range = 0.4–0.6), and lower in the Greater Yellowstone Ecosystem (ψ range = 0.1–0.3). We provide baseline data for future surveys of wolverine along with a design and protocol to conduct those surveys.  [show more]
Description:

Aquatic Research ScientistWestern Slope and Rio Grande Native FishesContact Information

Colorado Parks and Wildlife2300 S. Townsend Ave.Montrose, CO 81401Phone: (970) 252-6037Email:  href="mailto:zachary.hooley-underwood@state.co.us">zachary.hooley-underwood@state.co.us

Education

  • M.S., Zoology and Physiology — University of Wyoming, 2015
  • B.S., Fish, Wildlife, and Conservation Biology — Colorado State University, 2011

Current or Recent Positions

  • Aquatic Research Scientist — Colorado Parks and Wildlife, 2021-Present
  • Research Associate — Colorado Cooperative Fish and Wildlife Research Unit, 2019-2021
  • Fisheries Technician — Colorado Parks and Wildlife, 2016-2019

Current or Recent Research Projects

  • Protecting tributary-spawning native suckers from hybridization with non-native suckers through mechanical exclusion
  • Evaluating tributary selection and fidelity by Bluehead Sucker, Flannelmouth Sucker, and Roundtail Chub
  • Refining the known distribution of Bluehead Sucker, Flannelmouth Sucker, and Roundtail Chub in Colorado

Areas of Interest/Expertise

  • Native, non-game fish research and conservation
  • Colorado River basin native fishes - ecology, behavior, and management
  • Identifying fish movement patterns using complementary studies and technologies
  • Assessing fish population distribution and function

Selected Publications

Reprints: for any publications listed here that are not available as pdf files, you may contact Zachary Hooley-Underwood to request a reprint.Riepe, T. B., Z. E. Hooley-Underwood, and M. Johnson. 2024. Thermal tolerance of larval flannelmouth sucker Catostomus latipinnis acclimated to three temperatures. Fishes 2024, 9, 181. Bonjour, S. M., K. B. Gido, M. C. McKinstry, C. N. Cathcart, M. R. Bogaard, M. Dzul, B. D. Healy, Z. E. Hooley-Underwood, D. L. Rogowski, and C. B. Yackulic. 2023. Migration timing and tributary use of spawning flannelmouth sucker (Catostomus latipinnis). Journal of Fish Biology. Riepe, T. B., Z. E. Hooley-Underwood, R. E. McDevitt, A. Sralik, and P. Cadmus. 2023. Increased density of Bluehead Sucker larvae decreases critical thermal maximum. North American Journal of Fisheries Management. Hooley-Underwood, Z. E., Thompson, K. G., and Bestgen, K. B. 2021. Razorback Sucker Xyrauchen texanus spawning in an intermittent Colorado tributary. North American Journal of Fisheries Management. 41:1151 - 1158.Kevin G. Thompson, and Z. E. Hooley-Underwood. 2019. Present Distribution of Three Colorado River Basin Native Non-game Fishes, and Their Use of Tributary Streams. Colorado Parks and Wildlife Technical Publication 52.

Z. E. Hooley-Underwood, Summer B. Stevens, Nicholas R. Salinas, and Kevin G. Thompson. 2019. An intermittent stream supports extensive spawning of large-river native fishes. Transactions of the American Fisheries Society 148:426-441.

Z. E. Hooley-Underwood, Elizabeth G. Mandeville, Paul Gerrity, Joe Deromedi, Kevin Johnson, and Annika W. Walters. 2018. Combining genetic, isotopic and field data to better describe the influence of dams and diversions on burbot movement in the Wind River Drainage, Wyoming. Transactions of the American Fisheries Society 147: 606-620.

Z. E. Hooley-Underwood, Summer B. Stevens, Kevin G. Thompson. 2017. Short-term passive integrated transponder tag retention in wild populations of bluehead and flannelmouth suckers. North American Journal of Fisheries Management 37: 582-586.

David R. Stewart, Z. E. Underwood, Frank. J. Rahel, Annika W. Walters. 2017. The effectiveness of surrogate taxa to conserve freshwater biodiversity. Conservation Biology. doi:10.1111/cobi.12967

Z. E. Underwood, Elizabeth Mandeville, Annika Walters. 2016. Population connectivity and genetic structure of burbot populations in the Wind River Basin, Wyoming. Hydrobiologia 765: 329-342.

Z. E. Underwood, Christopher A. Myrick, Robert I. Compton. 2014. Comparative swimming performance of five Catostomus species and roundtail chub. North American Journal of Fisheries Management 34: 753-763.

Christopher A. Myrick, Z. E. Underwood, Kristoph D. Kinzli. 2013. Supporting undergraduate education with realistic laboratory exercises and research experience. Fisheries 38:160-168.

Z. E. Underwood, Christopher A. Myrick, Kevin B. Rogers. 2012. Effect of acclimation temperature on the upper thermal tolerance of Colorado River cutthroat trout Oncorhynchus clarkii pleuriticus: thermal limits of a North American salmonid. Journal of Fish Biology 80: 2420–2433.
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Type: Text
Subjects: Aquatic nuisance species
ANS
Zebra mussels
Quagga mussels
Type:Text
Subject:Aquatic nuisance species
ANS
Zebra mussels
Quagga mussels
Description:The Colorado Zebra/Quagga Mussel Management Plan (ZQM Plan) outlines a statewide collaborative effort to detect, contain, and substantially reduce the risk of the spread and further infestation by zebra/quagga mussels in Colorado. The Plan is coordinated by the Colorado Division of Wildlife (CDOW) as part of the State Aquatic Nuisance Species (ANS) Program. The Plan’s primary components are early detection and rapid response, containment, prevention and education/outreach. [show more]