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Full-Text Articles in Water Resource Management

Largemouth Bass In The Upper Mississippi River: An Evaluation Of Management Strategies And Understanding Potential Factors Influencing Dynamic Rate Functions, Kylie Beth Sterling Jan 2022

Largemouth Bass In The Upper Mississippi River: An Evaluation Of Management Strategies And Understanding Potential Factors Influencing Dynamic Rate Functions, Kylie Beth Sterling

Graduate Theses/Dissertations

The Upper Mississippi River (UMR) supports ecologically and economically important commercial and recreational fisheries. One recreational fishery in the UMR is the Largemouth Bass fishery. Recreational fisheries can be effectively managed using information on population dynamics, though little is known about Largemouth Bass population dynamics in large river ecosystems. Therefore, the objectives of this study were to 1) evaluate recruitment, growth, and mortality of three Largemouth Bass populations in the UMR, specifically within Pools 4, 8, and 13, and 2) to use those estimates of recruitment, growth and mortality to inform exploitation models to evaluate best management practices for each …

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Zebra Mussel Length-Weight Relationships Across Various Substrate Types In Lake Bemidji, Mitch Kehne Jan 2022

Zebra Mussel Length-Weight Relationships Across Various Substrate Types In Lake Bemidji, Mitch Kehne

Journal of Earth and Life Science

As of November 2021, zebra mussels were confirmed in 270 Minnesotan lakes with another 232 lakes listed as infested due to their connection or proximity to where zebra mussels have been found. With lack of effective treatments to impede their spread, zebra mussels continue to colonize new areas causing ecological as well as economic harm. The goal of this study was to establish a length-weight relationship for the zebra mussel population in Lake Bemidji using shell length (SL) and wet weight (WW), as well as to assess substrate type and log transformed shell length as predictors of log transformed zebra …

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Implications Of Condition Shifts On Shallow Lakes, Alicia Skolte Dec 2021

Implications Of Condition Shifts On Shallow Lakes, Alicia Skolte

Biology Graduate Theses

Shallow lakes have undergone condition shifts throughout time by natural causes, management actions, or a combination of the two. Because shallow lakes are especially vulnerable to shifts towards turbid conditions, management actions on shallow lakes have focused on water level/retainment, biomanipulations, the management/removal of non-native species, and land-use changes. This review compiles a summary on ecosystem shifts including a discussion on the frequency of shifts historically and the importance and causes of those shifts, trophic cascades, and the influence of introduced species in shallow lakes. This review will then examine case-studies of management-linked shifts and explain current shift theory. Next, …

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The U.S. Inland Creel And Angler Survey Catalog (Creelcat): Development, Applications, And Opportunities, Abigail J. Lynch, Nicholas A. Sievert, Holly S. Embke, Ashley M. Robertson, Bonnie J.E. Myers, Micheal S. Allen, Zachary S. Feiner, Frederick Hoogakker, Scott Knoche, Rebecca M. Krogman, Stephen R. Midway, Chelsey L. Nieman, Craig P. Paukert, Kevin L. Pope, Mark W. Rogers, Lyndsie S. Wszola, T. Douglas Beard Nov 2021

The U.S. Inland Creel And Angler Survey Catalog (Creelcat): Development, Applications, And Opportunities, Abigail J. Lynch, Nicholas A. Sievert, Holly S. Embke, Ashley M. Robertson, Bonnie J.E. Myers, Micheal S. Allen, Zachary S. Feiner, Frederick Hoogakker, Scott Knoche, Rebecca M. Krogman, Stephen R. Midway, Chelsey L. Nieman, Craig P. Paukert, Kevin L. Pope, Mark W. Rogers, Lyndsie S. Wszola, T. Douglas Beard

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

Inland recreational fishing, defined as primarily leisure-driven fishing in freshwaters, is a popular pastime in the USA. State natural resource agencies endeavor to provide high-quality and sustainable fishing opportunities for anglers. Managers often use creel and other angler survey data to inform state- and waterbody-level management efforts. Despite the broad implementation of angler surveys and their importance to fisheries management at state scales, regional and national coordination among these activities is minimal, limiting data applicability for larger-scale management practices and research. Here, we introduce the U.S. Inland Creel and Angler Survey Catalog (CreelCat), a first-of-its-kind, publicly available national database of …

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Beef Cow Operations During Drought: Dealing With More Than Dry Conditions, Matthew Stockton Aug 2021

Beef Cow Operations During Drought: Dealing With More Than Dry Conditions, Matthew Stockton

Cornhusker Economics

The most recent drought conditions have grown to cover a large portion of the west and the central United States, as shown in Figure 1. Those depending on rain continue to watch and hope that conditions will change, while implementing and considering various strategies to preserve their livelihoods. Those who have been in the business for years have seen other occasions when dry conditions limited forage production and created hardship. Each occurrence has varying outcomes, depending on the many factors faced by individuals. While drought may produce the same dry conditions for many, its effects are individualized. There are as …

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Effects Of Environmental Change On Ancestral Pueblo Fishing In The Middle Rio Grande, Jonathan William Dombrosky May 2021

Effects Of Environmental Change On Ancestral Pueblo Fishing In The Middle Rio Grande, Jonathan William Dombrosky

Anthropology ETDs

It has long been assumed that fishes were unimportant in the diet of past Pueblo people in the U.S. Southwest. Yet, small numbers of fish remains are consistently recovered from Late pre-Hispanic/Early Historic archaeological sites in the Middle Rio Grande of New Mexico. The end of drought conditions may have impacted food choice and fishing decisions during this time. I use behavioral ecology to understand how fishing could have been an optimal food-getting strategy for Ancestral Pueblo farmers. Stable isotope analysis offers a way to account for environmental change. I provide a refined 13C Suess correction model to support …

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Temporal Invariance Of Social-Ecological Catchments, Mark A. Kaemingk, Christine N. Bender, Chris Chizinski, Aaron J. Bunch, Kevin L. Pope Jan 2021

Temporal Invariance Of Social-Ecological Catchments, Mark A. Kaemingk, Christine N. Bender, Chris Chizinski, Aaron J. Bunch, Kevin L. Pope

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

Natural resources such as waterbodies, public parks, and wildlife refuges attract people from varying distances on the landscape, creating “social-ecological catchments.” Catchments have provided great utility for understanding physical and social relationships within specific disciplines. Yet, catchments are rarely used across disciplines, such as its application to understand complex spatiotemporal dynamics between mobile human users and patchily distributed natural resources. We collected residence ZIP codes from 19,983 angler parties during 2014–2017 to construct seven angler–waterbody catchments in Nebraska, USA. We predicted that sizes of dense (10% utilization distribution) and dispersed (95% utilization distribution) angler–waterbody catchments would change across seasons and …

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Roost Use And Movements Of Northern Long-Eared Bats In A Southeast Nebraska Agricultural Landscape, Christopher Fill, Craig R. Allen, John F. Benson, Dirac Twidwell Jan 2021

Roost Use And Movements Of Northern Long-Eared Bats In A Southeast Nebraska Agricultural Landscape, Christopher Fill, Craig R. Allen, John F. Benson, Dirac Twidwell

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

Bats are important bio-indicators of ecosystem health and provide a number of ecosystem services. White-nose Syndrome and habitat loss have led to the decline of many bat species in eastern North America, including the federally threatened northern long-eared bat, Myotis septentrionalis. White-nose Syndrome was only recently found in Nebraska, which lies on the western extent of this species geographic range. To better understand how this forest-dependent species persists in an agriculturally dominated landscape amid a growing number of pressures, we investigated the roosting habits of this bat at the Homestead National Monument of America, located in southeast Nebraska. We …

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Phylogenomics Reveals Ancient And Contemporary Gene Flow Contributing To The Evolutionary History Of Sea Ducks (Tribe Mergini), Philip Lavretsky, Robert E. Wilson, Sandra L. Talbot, Sarah A. Sonsthagen Jan 2021

Phylogenomics Reveals Ancient And Contemporary Gene Flow Contributing To The Evolutionary History Of Sea Ducks (Tribe Mergini), Philip Lavretsky, Robert E. Wilson, Sandra L. Talbot, Sarah A. Sonsthagen

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

Insight into complex evolutionary histories continues to build through broad comparative phylogenomic and population genomic studies. In particular, there is a need to understand the extent and scale that gene flow contributes to standing genomic diversity and the role introgression has played in evolutionary processes such as hybrid speciation. Here, we investigate the evolutionary history of the Mergini tribe (sea ducks) by coupling multi-species comparisons with phylogenomic analyses of thousands of nuclear ddRAD-seq loci, including Z-sex chromosome and autosomal linked loci, and the mitogenome assayed across all extant sea duck species in North America. All sea duck species are strongly …

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Effects Of Salt Runoff On Aquatic Macroinvertebrate Colonies, Kendra Fink Jan 2021

Effects Of Salt Runoff On Aquatic Macroinvertebrate Colonies, Kendra Fink

Journal of Earth and Life Science

Aquatic macroinvertebrates bridge the gap in part between primary and secondary consumers, making them ecologically important for most aquatic systems. They are used as biotic indicators for water quality due to their sensitivity to pollutants and may be affected, specifically, by chloride ion concentrations in the water. Water quality can be evaluated by looking at species compositions and their respective tolerance values. To determine long-term effects of road salt on macroinvertebrate colonies, a total of 338 identified macroinvertebrates of 10 families (two generalized to class) at 9 sites were collected from before, after, and between three bridges on Turtle River …

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Impacts Of Extreme Environmental Disturbances On Piping Plover Survival Are Partially Moderated By Migratory Connectivity, Kristen S. Ellis, Michael J. Anteau, Francesca J. Cuthbert, Cheri L. Gratto-Trevor, Joel G. Jorgensen, David J. Newstead, Larkin Powell, Megan M. Ring, Mark H. Sherfy, Rose J. Swift, Dustin L. Toy, David N. Koons Jan 2021

Impacts Of Extreme Environmental Disturbances On Piping Plover Survival Are Partially Moderated By Migratory Connectivity, Kristen S. Ellis, Michael J. Anteau, Francesca J. Cuthbert, Cheri L. Gratto-Trevor, Joel G. Jorgensen, David J. Newstead, Larkin Powell, Megan M. Ring, Mark H. Sherfy, Rose J. Swift, Dustin L. Toy, David N. Koons

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

Effective conservation for listed migratory species requires an understanding of how drivers of population decline vary spatially and temporally, as well as knowledge of range-wide connectivity between breeding and nonbreeding areas. Environmental conditions distant from breeding areas can have lasting effects on the demography of migratory species, yet these consequences are often the least understood. Our objectives were to 1) evaluate associations between survival and extreme environmental disturbances at nonbreeding areas, including hurricanes, harmful algal blooms, and oil spills, and 2) estimate migratory connectivity between breeding and nonbreeding areas of midcontinental piping plovers (Charadrius melodus). We used capture …

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Factors Influencing Aquatic Invertebrate Diversity In Mine Pit Lakes Along The Mesabi Iron Range, Jeremy Laurich Jan 2021

Factors Influencing Aquatic Invertebrate Diversity In Mine Pit Lakes Along The Mesabi Iron Range, Jeremy Laurich

Journal of Earth and Life Science

Restoration of mine pit lakes for recreation is going to be very important for the future of Minnesota’s Mesabi Iron Range area. As many as 250 lakes will need to be restored in the future along this 100-kilometer-long swath of mining country. Information regarding the organisms that currently inhabit these lakes is important for future restorations to be a success. The focus of this study was to identify the types of aquatic invertebrates present in pit lakes and to identify some of the factors that influence their abundance and diversity. During this study, invertebrate samples were taken along the shore …

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Is There A Relationship Between Aquatic Vegetation And Amphipod Stocking Mortality?, Alaina Taylor Jan 2021

Is There A Relationship Between Aquatic Vegetation And Amphipod Stocking Mortality?, Alaina Taylor

Journal of Earth and Life Science

Amphipod occurrence and abundance has declined in the Prairie Pothole Region (PPR). Wildlife managers have stocked prairie pothole wetlands with Gammarus lacustris since 2018 to establish self-sustaining populations. G. lacustris have been detected in only 2 of 22 stocked basins, suggesting that they have died or failed to reproduce in most stocking attempts. Aquatic plant surveys were conducted in stocked wetlands and compared to data from surveys of wetlands with naturally occurring populations to understand if G. lacustris would be expected to survive in stocked wetlands based on characteristics of the aquatic vegetation communities. SAV coverage was significantly higher in …

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Exploring The Genetic Variability Of Zebra Mussels Dreisenna Polymoprha, Maxwell Carr Jan 2021

Exploring The Genetic Variability Of Zebra Mussels Dreisenna Polymoprha, Maxwell Carr

Journal of Earth and Life Science

Zebra Mussels Dreisenna polymorpha are one of the most well-known invasive species here in the United States. This species can take over watersheds very quickly, causing damage to both the ecosystem and man-made structures. The basic physical behavior of this species has been well documented, but the invasive North American Zebra Mussel is much more aggressive and therefore causes more damage in the Great Lakes region compared to its native waters. Genetic variation may be playing a very large role in how and why D. polymorpha is causing such large problems for stakeholders in the United States. This review cites …

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Effectiveness Of Endothall Treatment In Reducing Potamogeton Crispus In Lake Julia, Jake Sorensen Jan 2021

Effectiveness Of Endothall Treatment In Reducing Potamogeton Crispus In Lake Julia, Jake Sorensen

Journal of Earth and Life Science

Curly leaf pondweed Potamogeton crispus, is a submerged aquatic plant non-native to North America. It was most likely introduced when common carp Cyprinus carpio were intentionally brought to the Midwest. Endothall is an aquatic herbicide commonly used to control curlyleaf pondweed in lakes. This study focused on collecting data from Lake Julia in Sherburne County, MN. Lake Julia is treated annually in the spring to control curlyleaf pondweed. The results show treatment areas saw a significant increase in vegetation density compared to control areas (P < 0.01). Changes in percent vegetation coverage by date were insignificant (P = 0.24). No significant signs of fish kills were observed. Because this study looked at overall vegetation coverage instead of specifically curlyleaf pondweed, we cannot conclude the increase in vegetation coverage was from curlyleaf pondweed alone. Based on the results from Poovey et al. (2002) we would expect lower vegetation coverage in treatment areas instead of the increased vegetation coverage observed in our study. This suggests the possibility that the endothall treatment successfully killed curlyleaf pondweed in treated areas, which allowed for new growth of submerged aquatic plants to take place as water temperatures increased.

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An Open-Sourced, Web-Based Application To Improve Our Ability To Understand Hunter And Angler Purchasing Behavior From License Data, Nathaniel B. Price, Christopher J. Chizinski, Joseph J. Fontaine, Kevin L. Pope, Micaela Rahe, Jeff Rawlinson Oct 2020

An Open-Sourced, Web-Based Application To Improve Our Ability To Understand Hunter And Angler Purchasing Behavior From License Data, Nathaniel B. Price, Christopher J. Chizinski, Joseph J. Fontaine, Kevin L. Pope, Micaela Rahe, Jeff Rawlinson

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

State fish and wildlife agencies rely on hunters and anglers (i.e., sportspersons) to fund management actions through revenue generated from license sales and excise taxes on hunting and fishing equipment. There is a need to develop new techniques that bridge the information gap on participation and provide agencies with an understanding of sportspersons at a resolution that can more directly inform efforts to engage sportspersons. Monitoring sportsperson participation using information about their license-purchasing behavior has the potential to reveal important patterns in recruitment (first-time purchase of a hunting or fishing license), retention (continued purchase of licenses across multiple years), and …

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Effects Of Management Efforts On Fledging Success Of Endangered Interior Least Terns (Sternula Antillarum Athalassos) On The Mcclellan-Kerr Arkansas River Navigation System In Arkansas, Trevor N. Jensen Aug 2020

Effects Of Management Efforts On Fledging Success Of Endangered Interior Least Terns (Sternula Antillarum Athalassos) On The Mcclellan-Kerr Arkansas River Navigation System In Arkansas, Trevor N. Jensen

Theses and Dissertations from 2020

The Interior Least Tern (Sternula antillarum athalassos) is an endangered shorebird that primarily nests in colonies on barren riverine sandbars on many major river systems throughout the central United States. Water resource development projects such as damming and channelization have altered the natural flow regimes of these systems leading to a decrease in sandbar quality and quantity, and as a result this species is dependent on management to ensure their recovery. Managers within Arkansas have been applying a variety of management approaches to improve sandbar nesting habitat and success of this population intermittently since 2002, with increased intensity since 2015. …

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A Social–Ecological Odyssey In Fisheries And Wildlife Management, Andrew K. Carlson, William W. Taylor, Melissa R. Cronin, Mitchell J. Eaton, Mark A. Kaemingk, Andrea J. Reid, Ashley Trudeau May 2020

A Social–Ecological Odyssey In Fisheries And Wildlife Management, Andrew K. Carlson, William W. Taylor, Melissa R. Cronin, Mitchell J. Eaton, Mark A. Kaemingk, Andrea J. Reid, Ashley Trudeau

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

Aldo Leopold, famous ecologist and “father” of North American wildlife management, once said, “These are two things that interest me: the relation of people to each other, and the relation of people to land” (Leopold 1947). Ever prescient, Leopold recognized that natural resource management is fundamentally about humans and their relationship with nature well before conservation became an established way of thinking, much less the bedrock of entire professions. Similarly, amid the Green Revolution to increase agricultural production, in part, through widespread use of pesticides, renowned environmentalist and journalist Rachel Carson noted that we are all “a part of nature, …

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Record Fledging Count From A Seven-Egg Clutch In The Cooper’S Hawk (Accipiter Cooperii), Robert N. Rosenfield, Sarah A. Sonsthagen, Ann Riddle-Berntsen, Evan Kuhel May 2020

Record Fledging Count From A Seven-Egg Clutch In The Cooper’S Hawk (Accipiter Cooperii), Robert N. Rosenfield, Sarah A. Sonsthagen, Ann Riddle-Berntsen, Evan Kuhel

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

Cooper’s Hawks (Accipiter cooperii) typically lay 3–5 eggs per clutch, rarely 6 eggs, and there are 2 accounts of 7-egg clutches and 1 record of a maximum 8-egg clutch for the species. Brood sizes of 3–5 young are common and the previous maximum brood count is 6 young. However, in 2019, we found an urban nest in Stevens Point, Wisconsin, with 7 eggs that resulted in a record high of 7 fledglings. We genetically confirmed that the attending male sired all the offspring and the attending female laid all 7 eggs. Larger body size of the tending adults …

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Spatial And Temporal Behavioral Differences Between Angler-Access Types, Derek Kane, Mark A. Kaemingk, Christopher J. Chizinski, Kevin L. Pope Apr 2020

Spatial And Temporal Behavioral Differences Between Angler-Access Types, Derek Kane, Mark A. Kaemingk, Christopher J. Chizinski, Kevin L. Pope

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

Recreational angler surveys typically collect information on how anglers access a fishery. Yet, it is unclear how this information is useful for fisheries management and conservation. The objective of this study was to compare behavior (e.g., party size, time fished, and numbers of fish released and harvested) of bank and boat anglers, representing two angler-access types. Bank and boat anglers were surveyed across 29 Nebraska waterbodies from April through October, 2007–2017. We documented behavioral differences between bank and boat anglers that varied as a function of waterbody size and season. Patterns of party size, time fished, and numbers of fish …

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Understanding Sportsperson Retention And Reactivation Through License Purchasing Behavior, Matthew P. Hinrichs, Nathaniel B. Price, Matthew P. Gruntorad, Kevin L. Pope, Joseph J. Fontaine, Christopher J. Chizinski Apr 2020

Understanding Sportsperson Retention And Reactivation Through License Purchasing Behavior, Matthew P. Hinrichs, Nathaniel B. Price, Matthew P. Gruntorad, Kevin L. Pope, Joseph J. Fontaine, Christopher J. Chizinski

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

Most state and provincial fish and wildlife agencies have access to important information about patterns in sportsperson participation through their license databases. Using transaction data from Nebraska Game and Parks Commission’s electronic hunting and fishing license system, we tracked license purchases of Nebraska, USA, resident license holders in 2010 through 2017. We categorized sportspersons by gender and yearly purchases as hunting only (Hunter), fishing only (Angler), a combination of hunting and fishing (Hunter–Angler), or no purchases (Inactive). The probability of movement among active sportsperson groups was limited and varied little based on initial group participation. The Angler group had the …

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Weather And Exposure Period Affect Coyote Detection At Camera Traps, Anastasia E. Madsen, Lucia Corral Hurtado, Joseph J. Fontaine Mar 2020

Weather And Exposure Period Affect Coyote Detection At Camera Traps, Anastasia E. Madsen, Lucia Corral Hurtado, Joseph J. Fontaine

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

Abstract Camera traps are an increasingly popular means to monitor wildlife populations. However, like other techniques for measuring populations, camera traps are subject to sources of error that may bias population estimates. Past studies accounting for detection error have failed to account for a simple but potentially widely pervasive source of environmental error: weather conditions. Using 5,108,416 photographs from 804 scent‐lured camera traps deployed in western Nebraska, USA, during spring and autumn of 2014 and 2015, we analyzed the relationship between weather conditions (barometric pressure, wind speed, precipitation, and temperature) and coyote (Canis latrans) detection probability. Using binomial …

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Use Of Otolith Chemistry To Assess Recruitment And Habitat Use Of A White Bass Fishery In A Nebraska Reservoir, Matthew A. Perrion, Mark A. Kaemingk, Keith D. Koupal, Casey W. Schoenebeck, Nate A. Bickford Jan 2020

Use Of Otolith Chemistry To Assess Recruitment And Habitat Use Of A White Bass Fishery In A Nebraska Reservoir, Matthew A. Perrion, Mark A. Kaemingk, Keith D. Koupal, Casey W. Schoenebeck, Nate A. Bickford

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

Managing fisheries that exhibit variable annual recruitment is challenging, and maintenance stockings are often prescribed to minimize interannual population variation. Maintenance stockings are costly and may not be necessary if sufficient natural recruitment is occurring. Therefore, developing tools and techniques that can collectively assess hatching origin and subsequent habitat use of individuals would be valuable. Herein, we aimed to assess the efficacy of otolith chemistry techniques to (1) determine whether there was evidence of natural recruitment within an annually stocked white bass population and (2) examine the potential to describe spatial reservoir use of these age-0 fish. A sample of …

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Mitogenome Of Northern Long-Eared Bat, Sarah Gaughan, Kevin L. Pope, Jeremy A. White, Cliff Lemen, Patricia Freeman Jan 2020

Mitogenome Of Northern Long-Eared Bat, Sarah Gaughan, Kevin L. Pope, Jeremy A. White, Cliff Lemen, Patricia Freeman

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

The complete mitogenome of the northern long-eared bat (Myotis septentrionalis) was determined to be 17,362 bp and contained 22 tRNA genes, 2 rRNA genes and one control region. The whole genome base composition was 33.8% GC. Phylogenetic analysis suggests that M. septentrionalis be positioned next to M. auriculus in the Nearctic subclade of the Myotis genus. This complete mitochondrial genome provides essential molecular markers for resolving phylogeny and future conservation efforts.

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Use And Expenditures On Public Access Hunting Lands, Lyndsie S. Wszola, Lutz F. Gruber, Erica F. Stuber, Lindsey N. Messinger, Christopher J. Chizinski, Joseph J. Fontaine Jan 2020

Use And Expenditures On Public Access Hunting Lands, Lyndsie S. Wszola, Lutz F. Gruber, Erica F. Stuber, Lindsey N. Messinger, Christopher J. Chizinski, Joseph J. Fontaine

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

The recreational and economic benefits of hunting on traditional permanent public lands are well-established. Increasingly popular “open fields” hunting access programs temporarily open private lands to public hunting through public-private partnerships. Open fields programs have the potential to create public hunting opportunities and economic development in rural communities, but the extent to which open fields programs compare to traditional public lands at providing benefits to hunters and rural communities has not yet been evaluated. We compared hunter use and expenditures on open fields lands and traditional public lands in Nebraska, USA. We used Convolution Likelihood Ecological Abundance Regression, a novel …

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Exit Here: Strategies For Dealing With Aging Dams And Reservoirs, Henry H. Hansen, Emily Forzono, Alisha Grams, Lindsay Ohlman, Christine Ruskamp, Mark A. Pegg, Kevin L. Pope Jan 2020

Exit Here: Strategies For Dealing With Aging Dams And Reservoirs, Henry H. Hansen, Emily Forzono, Alisha Grams, Lindsay Ohlman, Christine Ruskamp, Mark A. Pegg, Kevin L. Pope

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

Aging infrastructure is prevalent throughout the world, but water control management structures, specifically dams, are of growing concern. Dams and their corresponding reservoirs have inherent, but separate, lifespans. The proportion of dams around the world that continue operation beyond their intended lifespans is growing at an alarming rate. Society will not only have to navigate the tradeoffs associated with the deterioration of services provided by reservoirs and dams, but also impending structural failures. Society is nearing a critical pinch point where we will have to decide how to deal with dams and reservoirs at scales that range from a single …

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Assessing The Hierarchy Of Long-Term Environmental Controls On Diatom Communities Of Yellowstone National Park Using Lacustrine Sediment Records, Victoria Chraibi, Sherilyn C. Fritz Jan 2020

Assessing The Hierarchy Of Long-Term Environmental Controls On Diatom Communities Of Yellowstone National Park Using Lacustrine Sediment Records, Victoria Chraibi, Sherilyn C. Fritz

Department of Earth and Atmospheric Sciences: Faculty Publications

An ecosystem’s ability to maintain structure and function following disturbance, defined as resilience, is influenced by a hierarchy of environmental controls, including climate, surface cover, and ecological relationships that shape biological community composition and productivity. This study examined lacustrine sediment records of naturally fishless lakes in Yellowstone National Park to reconstruct the response of aquatic communities to climate and trophic cascades from fish stocking. Sediment records of diatom algae did not exhibit a distinct response to fish stocking in terms of assemblage or algal productivity. Instead, 3 of 4 lakes underwent a shift to dominance by benthic diatom species from …

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Hunters And Their Perceptions Of Public Access: A View From Afield, Joseph J. Fontaine, Alexis D. Fedele, Lyndsie S. Wszola, Lindsey N. Messinger, Christopher J. Chizinski, Jeffery J. Lusk, Karie L. Decker, J. Scott Taylor, Erica F. Stuber Dec 2019

Hunters And Their Perceptions Of Public Access: A View From Afield, Joseph J. Fontaine, Alexis D. Fedele, Lyndsie S. Wszola, Lindsey N. Messinger, Christopher J. Chizinski, Jeffery J. Lusk, Karie L. Decker, J. Scott Taylor, Erica F. Stuber

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

Declining hunter participation threatens cultural traditions and public support for conservation, warranting examination of the forces behind the downward trajectory. Access to lands for hunting, an often-cited reason for non participation, may play a critical role in the retention and recruitment of hunters. Meeting the access needs of a diverse hunting constituency requires understanding how hunters use and perceive access opportunities, particularly public-access sites. Given that perceptions of access are entirely place based and degrade with time, traditional postseason survey methods may fail to adequately quantify the value of public access to the hunting constituency. To overcome the potential limitations …

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Mortality, Perception, And Scale: Understanding How Predation Shapes Space Use In A Wild Prey Population, Lindsey N. Messinger, Erica F. Stuber, Christopher J. Chizinski, Joseph J. Fontaine Sep 2019

Mortality, Perception, And Scale: Understanding How Predation Shapes Space Use In A Wild Prey Population, Lindsey N. Messinger, Erica F. Stuber, Christopher J. Chizinski, Joseph J. Fontaine

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

Attempts to assess behavioral responses of prey to predation risk are often confounded by depredation of prey. Moreover, the scale at which the response of prey is assessed has important implications for discovering how predation risk alters prey behavior. Herein, we assessed space use of wild Ring-necked Pheasants (Phasianus colchicus) in response to spatial and temporal variation in recreational hunting. We radio-marked pheasants and monitored space use at two spatial scales: short-term seasonal home range, and nightly resting locations. Additionally, we considered temporal variation in predation risk by monitoring space use prior to and during the pheasant hunting season. Although …

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Public Access For Pheasant Hunters: Understanding An Emerging Need, Lyndsie S. Wszola, Anastasia E. Madsen, Erica F. Stuber, Christopher J. Chizinski, Jeffrey J. Lusk, J. Scott Taylor, Kevin L. Pope, Joseph J. Fontaine Sep 2019

Public Access For Pheasant Hunters: Understanding An Emerging Need, Lyndsie S. Wszola, Anastasia E. Madsen, Erica F. Stuber, Christopher J. Chizinski, Jeffrey J. Lusk, J. Scott Taylor, Kevin L. Pope, Joseph J. Fontaine

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

Ring‐necked pheasant (Phasianus colchicus; i.e., pheasant) hunting participation is declining across North America, reflecting a larger downward trend in American hunting participation and threatening benefits to grassland conservation and rural economies. To stabilize and expand the pheasant hunting population, we must first identify factors that influence pheasant hunter participation. We used an extensive in‐person hunter survey to test the hypothesis that hunter demographics interact with social‐ecological traits of hunting locations to affect hunter decisions, outcomes, and perceptions. We built a series of Bayesian mixed effects models to parse variation in demographics, perceptions, and hunt outcomes of pheasant hunters interviewed at …

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