Annika Walters, PhD (Former Employee)
Science and Products
Wyoming Cooperative Fish and Wildlife Research Unit
The Wyoming Cooperative Fish and Wildlife Research Unit (est. 1977) is a partnership among the Wyoming Game and Fish Department, University of Wyoming, the U.S. Geological Survey, the U.S. Fish and Wildlife Service, and the Wildlife Management Institute.
The Implications of Stream Fragmentation for Climate Change Resilience of Northern Prairie Fishes
Dry stream sections are characteristic of most prairie streams. Native fish are highly adapted to variable environments, using refuge habitats (e.g., remaining wet stream fragments) to recolonize areas after seasonal drying. However, dams and other barriers can prevent recolonization of seasonally-dry stream sections habitats known to be critical spawning and rearing areas for many...
Development of a Surface Water Index of Permanence (SWIPe) Database to Assess Surface Water Availability for Ecohydrological Refugia
Surface-water availability has been identified as one of the biggest issues facing society in the 21st century. Where and when water is on the landscape can have profound impacts on the economy, wildlife behavior, recreational use, industrial practices, energy development, and many other aspects of life, society, and the environment. Projections indicate that surface-water availability...
Synthesizing Multiple Long-Term Datasets to Test Flow Ecology Relationships for Fishes - Workshop
River ecosystems support a wide diversity of biota, including thousands of fish species, which are variously adapted to the dynamic environments provided by flowing-water habitats. One of the primary ways that human activities diminish the biological capacity of rivers is by altering the natural hydrologic variability of river systems through regulation and diversion of streamflow for...
Fish genetics data and population location information from the Upper Snake River basin, WY (2020-2022) Fish genetics data and population location information from the Upper Snake River basin, WY (2020-2022)
Fish genetics data and the location of populations of Yellowstone cutthroat trout (Oncorhynchus virginalis bouvieri; formerly Oncorhynchus clarkii bouvieri). Surveys were collected in tributaries and rivers within the upper Snake River basin, Wyoming. These datasets were created to be used in genetic stock identification to evaluate the effect of tributary populations on population...
Wyoming Range fish data 2012-2019 Wyoming Range fish data 2012-2019
The goal of the study associated with this dataset was to characterize flow-ecology relationships for Mottled Sculpin (Cottus bairdii) and Mountain Sucker (Catostomus platyrhynchus) in snowpack driven headwater streams of the Upper Green River Basin in Wyoming, U.S.A. Our objectives were to: 1) evaluate whether variation in Mottled Sculpin and Mountain Sucker abundance is driven by...
Sediment and fish data to develop severity of ill effect dose-response models Sediment and fish data to develop severity of ill effect dose-response models
We synthesized existing literature to develop this dataset which relates suspended sediment concentration and exposure duration to biological effects on fishes. Our dataset contains a total of 3,610 dose-response data triplicates consisting of (a) suspended sediment concentration, (b) duration of exposure, and (c) fish severity of ill effects (SEV). There is no original data in the...
Fish sampling data, water temperature data, and groundwater spring location data from the upper Snake River basin, WY, 2021-2023 Fish sampling data, water temperature data, and groundwater spring location data from the upper Snake River basin, WY, 2021-2023
Fish sampling data, stream temperature data, and observations of the locations of groundwater springs within the upper Snake River basin, Wyoming. These datasets were created to assess how stream temperature and groundwater spring sources are associated with the growth and production of young-of-year Yellowstone cutthroat trout (Oncorhynchus virginalis bouvieri; formerly Oncorhynchus...
Suspended Sediment Conditions to Hyporheic Dissolved Oxygen and Fine Sediment Deposition in Salmonid Spawning Habitat Below an Irrigation Dam, Park County, Wyoming Suspended Sediment Conditions to Hyporheic Dissolved Oxygen and Fine Sediment Deposition in Salmonid Spawning Habitat Below an Irrigation Dam, Park County, Wyoming
We quantified the effects of dam sediment management operations on downstream salmonid spawning habitat during two fall water-level drawdown periods: an experimental drawdown leading to sediment release or a typical slower drawdown intended to minimize release of sediment. The experimental drawdown increased deposited fine sediment and decreased hyporheic dissolved oxygen levels. However...
Roundtail Chub and Flannelmouth Sucker movement data within the Blacks Fork subbasin, Wyoming 2019-2021 Roundtail Chub and Flannelmouth Sucker movement data within the Blacks Fork subbasin, Wyoming 2019-2021
The dataset includes Roundtail Chub and Flannelmouth Sucker detections at passive integrated transponder (PIT) tag antenna systems. We installed nine instream Biomark PIT-tag antenna systems (five 24-meter and four 9-meter antennas) in a pass-over orientation throughout the Blacks Fork subbasin. In addition to the fixed antennas, we used a Biomark inflatable antenna and two Biomark...
Brook Stickleback occurrence and environmental data 2020-2021 Brook Stickleback occurrence and environmental data 2020-2021
Brook Stickleback Culaea inconstans is an aquatic invasive species in Wyoming that may pose a risk to native biodiversity. Our aim was to evaluate the current risk Brook Stickleback poses to native fish species in the North Platte River drainage. We updated the current distribution of Brook Stickleback, evaluated for possible range expansion, and determined landscape-level habitat...
Wyoming crayfish assemblages 1969 - 2020 Wyoming crayfish assemblages 1969 - 2020
Crayfish have experienced extensive community reorganization as a result of global change, with some species becoming globally invasive while others have become rare or extinct. We combined historical and contemporary sampling data to determine temporal trends of crayfish assemblages of Wyoming, United States (1969–2020). The dataset includes previous statewide surveys and more narrow...
Isotopic Data for Fishes in Wyoming, USA Isotopic Data for Fishes in Wyoming, USA
Trophic studies can provide valuable information on the risk an invader poses to native species. Brook Stickleback Culaea inconstans is an invasive fish species in Wyoming whose effect on native fish assemblages is poorly understood. Our goal was to understand the potential for competitive interactions between Brook Stickleback and native fishes. We used stable isotopes of carbon (ẟ13C)...
Fish movement and colonization in the Wyoming Range 2018-2019 Fish movement and colonization in the Wyoming Range 2018-2019
Fish colonization ability may be one factor affecting population resilience after disturbance. We conducted displacement experiments in headwater streams in Wyoming, U.S.A. to evaluate mottled sculpin (Cottus bairdii) and mountain sucker (Catostomus platyrhynchus) colonization ability. Specifically, we (1) determined if fish could colonize sites rapidly after displacement, (2) evaluated...
Habitat and fish field survey data from Wyoming Range streams in 2012 and 2013 Habitat and fish field survey data from Wyoming Range streams in 2012 and 2013
Stream habitat characteristics, energy development metrics, and fish catch per unit effort data for 91 sites (100m stream reach) sampled in the summers of 2012 and 2013.We sampled four streams in the Dry Piney Drainage (Dry Piney, Beaver Dam, Black Canyon, and North Black Canyon), five in the Fogarty Drainage (North and South Fogarty, North and South Pine Grove, and Sawmill) and four in...
Filter Total Items: 71
Adaptive capacity of freshwater organisms in North America: Current understanding and future applications Adaptive capacity of freshwater organisms in North America: Current understanding and future applications
Freshwater species are increasingly threatened by climate change, yet our ability to assess their vulnerability remains incomplete. Typically, climate change vulnerability assessments (CCVAs) evaluate three components: exposure, sensitivity, and adaptive capacity. Adaptive capacity, defined as the ability of a species to adjust to changing conditions, provides critical insight into how...
Authors
Holly Susan Embke, Karen M Alofs, David B. Bunnell, Christy M. Caudill, Cindy Chu, Corey Garland Dunn, Kaelyn Fogelman, Spencer T. Gardner, Tomas O Hook, Scott A. Jackson, Matthew Keefer, Scott T Koenigbauer, Olivia E. LeDee, Stuart A. Ludsin, Abigail Lynch, Bonnie Myers, Elizabeth A. Nyboer, Travis Seaborn, Cory Suski, Lindsey Thurman, Annika W. Walters, Jacob Thomas Westhoff
Predicted fish vulnerability to stream drying in the western U.S.A. Predicted fish vulnerability to stream drying in the western U.S.A.
The frequency, magnitude and extent of stream drying is increasing due to climate change and human water demand. Fish vulnerability to increased stream drying is a combination of sensitivity (innate tolerance to low streamflow) and exposure to stream drying. To understand fish tolerance to low flow and susceptibility to decline under changing streamflow conditions, we estimated species...
Authors
Elizabeth A. Rieger, Niall G. Clancy, Ryan R. McShane, Roy Sando, Annika W. Walters
Density as a mechanism linking habitat disturbance to increased pathogen prevalence: Evidence from a natural experiment Density as a mechanism linking habitat disturbance to increased pathogen prevalence: Evidence from a natural experiment
Sudden habitat loss associated with environmental disturbance can trigger animals to move from affected to undisturbed areas, where increases in local density may occur. Although pathogen transmission is strongly related to local density, how crowding after habitat loss affects infection dynamics in wild populations remains unclear. Here we conceptualize the Disturbance-Density-Disease...
Authors
Gabriel M. Barrile, Anna D. Chalfoun, Annika W. Walters, Jerod A. Merkle
Groundwater structures fish growth and production across a riverscape Groundwater structures fish growth and production across a riverscape
Landscapes are composed of habitat patches and conditions that vary across space and time. While habitat variability and complexity can support important ecological processes and ecosystem services, the dynamic nature of habitats can also constrain organismal growth and production as optimal conditions are fleeting. In riverine ecosystems, groundwater discharge to streams stabilises...
Authors
Jeffrey R. Baldock, Robert Al-Chokhachy, Annika W. Walters
Ice Age biogeography corresponds with current climate vulnerability of freshwater fishes Ice Age biogeography corresponds with current climate vulnerability of freshwater fishes
1. Both local environmental factors and historical biogeography shape ecological communities, but determining which historical biogeographical patterns correspond with contemporary climate vulnerability is an underused conservation method. The historical colonization patterns of freshwater fishes following the Pleistocene (“Ice Age”) glaciations offers an ideal model for comparing...
Authors
Niall G. Clancy, Phaedra E. Budy, Annika W. Walters
Suspended sediment and fisheries: An exploration of empirical relationships Suspended sediment and fisheries: An exploration of empirical relationships
Objective: Sediment has an important role in aquatic ecosystems, however, excess sediment can negatively impact fish and other aquatic life. Quantifying the response of aquatic life, particularly fish, to suspended sediment is important for natural resource managers tasked with developing sediment management guidelines to protect aquatic ecosystems. Our goal was to assess the ability of
Authors
Ashleigh M. Pilkerton, Sara M. McCullough, Lindsay S. Patterson, Frank J. Rahel, Annika W. Walters
Shared leadership can promote success in collaborative research networks in ecology Shared leadership can promote success in collaborative research networks in ecology
1. While collaborative science is becoming the norm in ecology, many ecologists participating in collaborations are less aware of the body of research that studies the processes by which collaborative teams organize and communicate. 2. Here, we discuss how we successfully used a shared leadership model in the Dry Rivers Research Coordination Network. We discuss how this model promote...
Authors
Daniel C. Allen, Amy J. Burgin, Erin C. Seybold, Walter K. Dodds, Michelle H. Busch, Anna Bergstrom, Corey A. Krabbenhoft, Kate S. Boersma, James C. Stegen, Julian D. Olden, Carla L. Atkinson, C. Nathan Jones, Thibault Datry, Sarah E. Godsey, Arial J. Shogren, Annika W. Walters, Stephen Plont, Richard H. Walker, Margaret Shanafield, Meryl C. Mims, Adam N. Price, Chelsea R. Smith, Yaqi You, Michael T. Bogan, Ryan M. Burrows, Mathis L. Messager, Rachel Stubbington, Margaret A. Zimmer
Spatiotemporal drivers of water quality and phytoplankton communities in a cyanobacteria-dominated reservoir provide management insights Spatiotemporal drivers of water quality and phytoplankton communities in a cyanobacteria-dominated reservoir provide management insights
Reservoirs serve critical roles providing drinking water, irrigation, flood control, hydropower, recreation, fisheries, and aquatic habitat. Yet their physical position, complex shape, and large watersheds make reservoirs especially susceptible to eutrophication and harmful algal bloom (HAB) production. Boysen Reservoir, WY, is a high priority for proactive nutrient management because it...
Authors
Linnea A. Rock, William W. Fetzer, Lindsay Patterson, Samuel J. Sillen, Ron Steg, Annika W. Walters, Sarah M. Collins
On the importance and practical conservation of nongame fishes. On the importance and practical conservation of nongame fishes.
Fisheries management has historically focused conservation efforts on game or sport species. However, most species are nongame—those not traditionally captured for sport or harvest in countries where recreational fisheries predominate. Greater conservation of nongame species could help ensure that population declines do not go unnoticed. Unfortunately, fisheries managers already manage...
Authors
Niall G. Clancy, Frank J. Rahel, Brandon K. Peoples, Annika W. Walters, John Lyons, Nicholas E. Mandrak, Phaedra E. Budy, Emmanuel A Frimpong, Wyatt F. Cross
Linking suspended sediment conditions to hyporheic dissolved oxygen and fine sediment deposition in salmonid spawning habitat below an irrigation dam, Park County, Wyoming Linking suspended sediment conditions to hyporheic dissolved oxygen and fine sediment deposition in salmonid spawning habitat below an irrigation dam, Park County, Wyoming
Dams are essential for water resources management but impose notable effects on fluvial sediment transport and downstream river morphology by reducing or altering the timing of sediment loads. We explored the relationship between dam sediment management and downstream sediment dynamics in the context of riverine fisheries management. We quantified the effects of dam sediment management...
Authors
Ashleigh M. Pilkerton, Jason S. Alexander, Lindsay Patterson, Jason C. Burckhardt, Frank J. Rahel, Annika W. Walters
A synthesis of the characteristics and drivers of introduced fishes in prairie streams: Can we manage introduced harmful fishes in these dynamic environments? A synthesis of the characteristics and drivers of introduced fishes in prairie streams: Can we manage introduced harmful fishes in these dynamic environments?
Prairie streams of North America support native fishes that are adapted to the dynamic environment that characterizes these ecologically and economically important ecosystems. However, prairie streams have been altered by landscape changes that may affect the proportions of native and introduced species in fish communities. Herein, we investigate drivers of introduced fish in prairie...
Authors
A. A. Coulter, Michael J. Moore, Jimena Golcher-Benavides, Frank J. Rahel, Annika W. Walters, Shannon K. Brewer, Mark L. Wildhaber
Biogeochemical and community ecology responses to the wetting of non-perennial streams Biogeochemical and community ecology responses to the wetting of non-perennial streams
Transitions between dry and wet hydrologic states are the defining characteristic of non-perennial rivers and streams, which constitute the majority of the global river network. Although past work has focused on stream drying characteristics, there has been less focus on how hydrology, ecology and biogeochemistry respond and interact during stream wetting. Wetting mechanisms are highly...
Authors
Adam N. Price, Margaret Ann Zimmer, Anna J. Bergstrom, Amy J Burgin, Erin C. Seybold, Corey A. Krabbenhoft, Sam Zipper, Michelle H. Busch, Walter K. Dodds, Annika W. Walters, Jane S. Rogosch, Rachel Stubbington, Richard H Walker, James C. Stegen, Thibault Datry, Mathis L. Messager, Julian Olden, Sarah E Godsey, Margaret Shanafield, David E. Lytle, Ryan Burrows, Kendra E. Kaiser, George H. Allen, Meryl C. Mims, Jonathan D. Tonkin, Michael Bogan, John Christopher Hammond, Kate Boersma, Allison Myers-Pigg, Amanda DelVecchia, Daniel C. Allen, Songyan Yu, Adam Ward
Science and Products
Wyoming Cooperative Fish and Wildlife Research Unit
The Wyoming Cooperative Fish and Wildlife Research Unit (est. 1977) is a partnership among the Wyoming Game and Fish Department, University of Wyoming, the U.S. Geological Survey, the U.S. Fish and Wildlife Service, and the Wildlife Management Institute.
The Implications of Stream Fragmentation for Climate Change Resilience of Northern Prairie Fishes
Dry stream sections are characteristic of most prairie streams. Native fish are highly adapted to variable environments, using refuge habitats (e.g., remaining wet stream fragments) to recolonize areas after seasonal drying. However, dams and other barriers can prevent recolonization of seasonally-dry stream sections habitats known to be critical spawning and rearing areas for many...
Development of a Surface Water Index of Permanence (SWIPe) Database to Assess Surface Water Availability for Ecohydrological Refugia
Surface-water availability has been identified as one of the biggest issues facing society in the 21st century. Where and when water is on the landscape can have profound impacts on the economy, wildlife behavior, recreational use, industrial practices, energy development, and many other aspects of life, society, and the environment. Projections indicate that surface-water availability...
Synthesizing Multiple Long-Term Datasets to Test Flow Ecology Relationships for Fishes - Workshop
River ecosystems support a wide diversity of biota, including thousands of fish species, which are variously adapted to the dynamic environments provided by flowing-water habitats. One of the primary ways that human activities diminish the biological capacity of rivers is by altering the natural hydrologic variability of river systems through regulation and diversion of streamflow for...
Fish genetics data and population location information from the Upper Snake River basin, WY (2020-2022) Fish genetics data and population location information from the Upper Snake River basin, WY (2020-2022)
Fish genetics data and the location of populations of Yellowstone cutthroat trout (Oncorhynchus virginalis bouvieri; formerly Oncorhynchus clarkii bouvieri). Surveys were collected in tributaries and rivers within the upper Snake River basin, Wyoming. These datasets were created to be used in genetic stock identification to evaluate the effect of tributary populations on population...
Wyoming Range fish data 2012-2019 Wyoming Range fish data 2012-2019
The goal of the study associated with this dataset was to characterize flow-ecology relationships for Mottled Sculpin (Cottus bairdii) and Mountain Sucker (Catostomus platyrhynchus) in snowpack driven headwater streams of the Upper Green River Basin in Wyoming, U.S.A. Our objectives were to: 1) evaluate whether variation in Mottled Sculpin and Mountain Sucker abundance is driven by...
Sediment and fish data to develop severity of ill effect dose-response models Sediment and fish data to develop severity of ill effect dose-response models
We synthesized existing literature to develop this dataset which relates suspended sediment concentration and exposure duration to biological effects on fishes. Our dataset contains a total of 3,610 dose-response data triplicates consisting of (a) suspended sediment concentration, (b) duration of exposure, and (c) fish severity of ill effects (SEV). There is no original data in the...
Fish sampling data, water temperature data, and groundwater spring location data from the upper Snake River basin, WY, 2021-2023 Fish sampling data, water temperature data, and groundwater spring location data from the upper Snake River basin, WY, 2021-2023
Fish sampling data, stream temperature data, and observations of the locations of groundwater springs within the upper Snake River basin, Wyoming. These datasets were created to assess how stream temperature and groundwater spring sources are associated with the growth and production of young-of-year Yellowstone cutthroat trout (Oncorhynchus virginalis bouvieri; formerly Oncorhynchus...
Suspended Sediment Conditions to Hyporheic Dissolved Oxygen and Fine Sediment Deposition in Salmonid Spawning Habitat Below an Irrigation Dam, Park County, Wyoming Suspended Sediment Conditions to Hyporheic Dissolved Oxygen and Fine Sediment Deposition in Salmonid Spawning Habitat Below an Irrigation Dam, Park County, Wyoming
We quantified the effects of dam sediment management operations on downstream salmonid spawning habitat during two fall water-level drawdown periods: an experimental drawdown leading to sediment release or a typical slower drawdown intended to minimize release of sediment. The experimental drawdown increased deposited fine sediment and decreased hyporheic dissolved oxygen levels. However...
Roundtail Chub and Flannelmouth Sucker movement data within the Blacks Fork subbasin, Wyoming 2019-2021 Roundtail Chub and Flannelmouth Sucker movement data within the Blacks Fork subbasin, Wyoming 2019-2021
The dataset includes Roundtail Chub and Flannelmouth Sucker detections at passive integrated transponder (PIT) tag antenna systems. We installed nine instream Biomark PIT-tag antenna systems (five 24-meter and four 9-meter antennas) in a pass-over orientation throughout the Blacks Fork subbasin. In addition to the fixed antennas, we used a Biomark inflatable antenna and two Biomark...
Brook Stickleback occurrence and environmental data 2020-2021 Brook Stickleback occurrence and environmental data 2020-2021
Brook Stickleback Culaea inconstans is an aquatic invasive species in Wyoming that may pose a risk to native biodiversity. Our aim was to evaluate the current risk Brook Stickleback poses to native fish species in the North Platte River drainage. We updated the current distribution of Brook Stickleback, evaluated for possible range expansion, and determined landscape-level habitat...
Wyoming crayfish assemblages 1969 - 2020 Wyoming crayfish assemblages 1969 - 2020
Crayfish have experienced extensive community reorganization as a result of global change, with some species becoming globally invasive while others have become rare or extinct. We combined historical and contemporary sampling data to determine temporal trends of crayfish assemblages of Wyoming, United States (1969–2020). The dataset includes previous statewide surveys and more narrow...
Isotopic Data for Fishes in Wyoming, USA Isotopic Data for Fishes in Wyoming, USA
Trophic studies can provide valuable information on the risk an invader poses to native species. Brook Stickleback Culaea inconstans is an invasive fish species in Wyoming whose effect on native fish assemblages is poorly understood. Our goal was to understand the potential for competitive interactions between Brook Stickleback and native fishes. We used stable isotopes of carbon (ẟ13C)...
Fish movement and colonization in the Wyoming Range 2018-2019 Fish movement and colonization in the Wyoming Range 2018-2019
Fish colonization ability may be one factor affecting population resilience after disturbance. We conducted displacement experiments in headwater streams in Wyoming, U.S.A. to evaluate mottled sculpin (Cottus bairdii) and mountain sucker (Catostomus platyrhynchus) colonization ability. Specifically, we (1) determined if fish could colonize sites rapidly after displacement, (2) evaluated...
Habitat and fish field survey data from Wyoming Range streams in 2012 and 2013 Habitat and fish field survey data from Wyoming Range streams in 2012 and 2013
Stream habitat characteristics, energy development metrics, and fish catch per unit effort data for 91 sites (100m stream reach) sampled in the summers of 2012 and 2013.We sampled four streams in the Dry Piney Drainage (Dry Piney, Beaver Dam, Black Canyon, and North Black Canyon), five in the Fogarty Drainage (North and South Fogarty, North and South Pine Grove, and Sawmill) and four in...
Filter Total Items: 71
Adaptive capacity of freshwater organisms in North America: Current understanding and future applications Adaptive capacity of freshwater organisms in North America: Current understanding and future applications
Freshwater species are increasingly threatened by climate change, yet our ability to assess their vulnerability remains incomplete. Typically, climate change vulnerability assessments (CCVAs) evaluate three components: exposure, sensitivity, and adaptive capacity. Adaptive capacity, defined as the ability of a species to adjust to changing conditions, provides critical insight into how...
Authors
Holly Susan Embke, Karen M Alofs, David B. Bunnell, Christy M. Caudill, Cindy Chu, Corey Garland Dunn, Kaelyn Fogelman, Spencer T. Gardner, Tomas O Hook, Scott A. Jackson, Matthew Keefer, Scott T Koenigbauer, Olivia E. LeDee, Stuart A. Ludsin, Abigail Lynch, Bonnie Myers, Elizabeth A. Nyboer, Travis Seaborn, Cory Suski, Lindsey Thurman, Annika W. Walters, Jacob Thomas Westhoff
Predicted fish vulnerability to stream drying in the western U.S.A. Predicted fish vulnerability to stream drying in the western U.S.A.
The frequency, magnitude and extent of stream drying is increasing due to climate change and human water demand. Fish vulnerability to increased stream drying is a combination of sensitivity (innate tolerance to low streamflow) and exposure to stream drying. To understand fish tolerance to low flow and susceptibility to decline under changing streamflow conditions, we estimated species...
Authors
Elizabeth A. Rieger, Niall G. Clancy, Ryan R. McShane, Roy Sando, Annika W. Walters
Density as a mechanism linking habitat disturbance to increased pathogen prevalence: Evidence from a natural experiment Density as a mechanism linking habitat disturbance to increased pathogen prevalence: Evidence from a natural experiment
Sudden habitat loss associated with environmental disturbance can trigger animals to move from affected to undisturbed areas, where increases in local density may occur. Although pathogen transmission is strongly related to local density, how crowding after habitat loss affects infection dynamics in wild populations remains unclear. Here we conceptualize the Disturbance-Density-Disease...
Authors
Gabriel M. Barrile, Anna D. Chalfoun, Annika W. Walters, Jerod A. Merkle
Groundwater structures fish growth and production across a riverscape Groundwater structures fish growth and production across a riverscape
Landscapes are composed of habitat patches and conditions that vary across space and time. While habitat variability and complexity can support important ecological processes and ecosystem services, the dynamic nature of habitats can also constrain organismal growth and production as optimal conditions are fleeting. In riverine ecosystems, groundwater discharge to streams stabilises...
Authors
Jeffrey R. Baldock, Robert Al-Chokhachy, Annika W. Walters
Ice Age biogeography corresponds with current climate vulnerability of freshwater fishes Ice Age biogeography corresponds with current climate vulnerability of freshwater fishes
1. Both local environmental factors and historical biogeography shape ecological communities, but determining which historical biogeographical patterns correspond with contemporary climate vulnerability is an underused conservation method. The historical colonization patterns of freshwater fishes following the Pleistocene (“Ice Age”) glaciations offers an ideal model for comparing...
Authors
Niall G. Clancy, Phaedra E. Budy, Annika W. Walters
Suspended sediment and fisheries: An exploration of empirical relationships Suspended sediment and fisheries: An exploration of empirical relationships
Objective: Sediment has an important role in aquatic ecosystems, however, excess sediment can negatively impact fish and other aquatic life. Quantifying the response of aquatic life, particularly fish, to suspended sediment is important for natural resource managers tasked with developing sediment management guidelines to protect aquatic ecosystems. Our goal was to assess the ability of
Authors
Ashleigh M. Pilkerton, Sara M. McCullough, Lindsay S. Patterson, Frank J. Rahel, Annika W. Walters
Shared leadership can promote success in collaborative research networks in ecology Shared leadership can promote success in collaborative research networks in ecology
1. While collaborative science is becoming the norm in ecology, many ecologists participating in collaborations are less aware of the body of research that studies the processes by which collaborative teams organize and communicate. 2. Here, we discuss how we successfully used a shared leadership model in the Dry Rivers Research Coordination Network. We discuss how this model promote...
Authors
Daniel C. Allen, Amy J. Burgin, Erin C. Seybold, Walter K. Dodds, Michelle H. Busch, Anna Bergstrom, Corey A. Krabbenhoft, Kate S. Boersma, James C. Stegen, Julian D. Olden, Carla L. Atkinson, C. Nathan Jones, Thibault Datry, Sarah E. Godsey, Arial J. Shogren, Annika W. Walters, Stephen Plont, Richard H. Walker, Margaret Shanafield, Meryl C. Mims, Adam N. Price, Chelsea R. Smith, Yaqi You, Michael T. Bogan, Ryan M. Burrows, Mathis L. Messager, Rachel Stubbington, Margaret A. Zimmer
Spatiotemporal drivers of water quality and phytoplankton communities in a cyanobacteria-dominated reservoir provide management insights Spatiotemporal drivers of water quality and phytoplankton communities in a cyanobacteria-dominated reservoir provide management insights
Reservoirs serve critical roles providing drinking water, irrigation, flood control, hydropower, recreation, fisheries, and aquatic habitat. Yet their physical position, complex shape, and large watersheds make reservoirs especially susceptible to eutrophication and harmful algal bloom (HAB) production. Boysen Reservoir, WY, is a high priority for proactive nutrient management because it...
Authors
Linnea A. Rock, William W. Fetzer, Lindsay Patterson, Samuel J. Sillen, Ron Steg, Annika W. Walters, Sarah M. Collins
On the importance and practical conservation of nongame fishes. On the importance and practical conservation of nongame fishes.
Fisheries management has historically focused conservation efforts on game or sport species. However, most species are nongame—those not traditionally captured for sport or harvest in countries where recreational fisheries predominate. Greater conservation of nongame species could help ensure that population declines do not go unnoticed. Unfortunately, fisheries managers already manage...
Authors
Niall G. Clancy, Frank J. Rahel, Brandon K. Peoples, Annika W. Walters, John Lyons, Nicholas E. Mandrak, Phaedra E. Budy, Emmanuel A Frimpong, Wyatt F. Cross
Linking suspended sediment conditions to hyporheic dissolved oxygen and fine sediment deposition in salmonid spawning habitat below an irrigation dam, Park County, Wyoming Linking suspended sediment conditions to hyporheic dissolved oxygen and fine sediment deposition in salmonid spawning habitat below an irrigation dam, Park County, Wyoming
Dams are essential for water resources management but impose notable effects on fluvial sediment transport and downstream river morphology by reducing or altering the timing of sediment loads. We explored the relationship between dam sediment management and downstream sediment dynamics in the context of riverine fisheries management. We quantified the effects of dam sediment management...
Authors
Ashleigh M. Pilkerton, Jason S. Alexander, Lindsay Patterson, Jason C. Burckhardt, Frank J. Rahel, Annika W. Walters
A synthesis of the characteristics and drivers of introduced fishes in prairie streams: Can we manage introduced harmful fishes in these dynamic environments? A synthesis of the characteristics and drivers of introduced fishes in prairie streams: Can we manage introduced harmful fishes in these dynamic environments?
Prairie streams of North America support native fishes that are adapted to the dynamic environment that characterizes these ecologically and economically important ecosystems. However, prairie streams have been altered by landscape changes that may affect the proportions of native and introduced species in fish communities. Herein, we investigate drivers of introduced fish in prairie...
Authors
A. A. Coulter, Michael J. Moore, Jimena Golcher-Benavides, Frank J. Rahel, Annika W. Walters, Shannon K. Brewer, Mark L. Wildhaber
Biogeochemical and community ecology responses to the wetting of non-perennial streams Biogeochemical and community ecology responses to the wetting of non-perennial streams
Transitions between dry and wet hydrologic states are the defining characteristic of non-perennial rivers and streams, which constitute the majority of the global river network. Although past work has focused on stream drying characteristics, there has been less focus on how hydrology, ecology and biogeochemistry respond and interact during stream wetting. Wetting mechanisms are highly...
Authors
Adam N. Price, Margaret Ann Zimmer, Anna J. Bergstrom, Amy J Burgin, Erin C. Seybold, Corey A. Krabbenhoft, Sam Zipper, Michelle H. Busch, Walter K. Dodds, Annika W. Walters, Jane S. Rogosch, Rachel Stubbington, Richard H Walker, James C. Stegen, Thibault Datry, Mathis L. Messager, Julian Olden, Sarah E Godsey, Margaret Shanafield, David E. Lytle, Ryan Burrows, Kendra E. Kaiser, George H. Allen, Meryl C. Mims, Jonathan D. Tonkin, Michael Bogan, John Christopher Hammond, Kate Boersma, Allison Myers-Pigg, Amanda DelVecchia, Daniel C. Allen, Songyan Yu, Adam Ward