Open Access. Powered by Scholars. Published by Universities.®
Natural Resources and Conservation Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Natural Resources Management and Policy (2703)
- Other Environmental Sciences (2460)
- Life Sciences (1728)
- Ecology and Evolutionary Biology (1197)
- Animal Sciences (894)
-
- Terrestrial and Aquatic Ecology (666)
- Water Resource Management (619)
- Biodiversity (608)
- Zoology (605)
- Population Biology (603)
- Medicine and Health Sciences (591)
- Veterinary Infectious Diseases (585)
- Veterinary Medicine (585)
- Veterinary Preventive Medicine, Epidemiology, and Public Health (584)
- Veterinary Microbiology and Immunobiology (583)
- Other Veterinary Medicine (581)
- Plant Sciences (578)
- Sustainability (549)
- Botany (510)
- Weed Science (479)
- Systems Biology (475)
- Earth Sciences (455)
- Environmental Indicators and Impact Assessment (453)
- Environmental Monitoring (411)
- Hydrology (386)
- Natural Resource Economics (380)
- Aquaculture and Fisheries (222)
- Keyword
-
- Nebraska (122)
- Drought (121)
- United States (80)
- Remote sensing (56)
- Invasive species (52)
-
- Evapotranspiration (51)
- Conservation (48)
- Climate change (46)
- Sus scrofa (45)
- Agriculture (44)
- Management (39)
- Resilience (39)
- Feral swine (37)
- Survival (31)
- Water (29)
- Climate (27)
- Great Plains (26)
- Habitat (25)
- Groundwater (23)
- Irrigation (23)
- North Dakota (22)
- White-tailed deer (22)
- Wildlife (22)
- Biodiversity (21)
- Grassland (21)
- Wildlife damage management (21)
- Water quality (19)
- Birds (18)
- Ecology (18)
- MODIS (18)
- Publication Year
- Publication
-
- School of Natural Resources: Faculty Publications (1709)
- United States Department of Agriculture Wildlife Services: Staff Publications (585)
- The Prairie Naturalist (482)
- School of Natural Resources: Dissertations, Theses, and Student Research (338)
- Department of Environmental Studies: Undergraduate Student Theses (187)
-
- Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications (165)
- Joint Fire Science Program Research Project Reports (160)
- Op-Eds from ENSC230 Energy and the Environment: Economics and Policies (153)
- Daugherty Water for Food Global Institute: Faculty Publications (109)
- DroughtScape: Quarterly Newsletter of the National Drought Mitigation Center (2007–2023) (68)
- Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts (61)
- School of Natural Resources: Documents and Reviews (30)
- United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications (25)
- Nebraska Department of Environmental Quality: Reports (16)
- University of Nebraska State Museum: Staff and Affiliates, Publications (9)
- Zea E-Books Collection (8)
- Cornhusker Economics (5)
- Great Plains Research: A Journal of Natural and Social Sciences (through 2013) (5)
- National Invasive Species Council (5)
- Dissertations and Doctoral Documents, University of Nebraska-Lincoln, 2023– (4)
- Conservation and Survey Division: Faculty and Staff Publications (3)
- Department of Agricultural Economics: Dissertations, Theses, and Student Research (3)
- Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research (3)
- Department of Earth and Atmospheric Sciences: Dissertations, Theses, and Student Research (3)
- Transactions of the Nebraska Academy of Sciences and Affiliated Societies (3)
- UCARE: Research Products (3)
- United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications (3)
- Department of Agricultural and Biological Systems Engineering: Dissertations, Theses, and Student Research (2)
- Department of Agronomy and Horticulture: Faculty Publications (2)
- Honors Program: Senior Projects (Public) (2)
- Publication Type
- File Type
Articles 1951 - 1980 of 4183
Full-Text Articles in Natural Resources and Conservation
The Future Of Earth Observation In Hydrology, Matthew F. Mccabe, Matthew Rodell, Douglas E. Alsdorf, Remko Uijlenhoet, Wolfgang Wagner, Arko Lucieer, Rasmus Houborg, Niko E. C. Verhoest, Trenton E. Franz, Jiancheng Shi, Huilin Gao, Eric F. Wood
The Future Of Earth Observation In Hydrology, Matthew F. Mccabe, Matthew Rodell, Douglas E. Alsdorf, Remko Uijlenhoet, Wolfgang Wagner, Arko Lucieer, Rasmus Houborg, Niko E. C. Verhoest, Trenton E. Franz, Jiancheng Shi, Huilin Gao, Eric F. Wood
School of Natural Resources: Faculty Publications
In just the past 5 years, the field of Earth observation has progressed beyond the offerings of conventional space-agency-based platforms to include a plethora of sensing opportunities afforded by CubeSats, unmanned aerial vehicles (UAVs), and smartphone technologies that are being embraced by both for-profit companies and individual researchers. Over the previous decades, space agency efforts have brought forth well-known and immensely useful satellites such as the Landsat series and the Gravity Research and Climate Experiment (GRACE) system, with costs typically of the order of 1 billion dollars per satellite and with concept-to-launch timelines of the order of 2 decades (for …
Scaling, Similarity, And The Fourth Paradigm For Hydrology, Chirsta D. Peters-Lidard, Martyn Clark, Luis Samaniego, Niko E. C. Verhoest, Tim Van Emmerik, Remko Uijlenhoet, Kevin Achieng, Trenton E. Franz, Ross Woods
Scaling, Similarity, And The Fourth Paradigm For Hydrology, Chirsta D. Peters-Lidard, Martyn Clark, Luis Samaniego, Niko E. C. Verhoest, Tim Van Emmerik, Remko Uijlenhoet, Kevin Achieng, Trenton E. Franz, Ross Woods
School of Natural Resources: Faculty Publications
In this synthesis paper addressing hydrologic scaling and similarity, we posit that roadblocks in the search for universal laws of hydrology are hindered by our focus on computational simulation (the third paradigm) and assert that it is time for hydrology to embrace a fourth paradigm of data intensive science. Advances in information-based hydrologic science, coupled with an explosion of hydrologic data and advances in parameter estimation and modeling, have laid the foundation for a data-driven framework for scrutinizing hydrological scaling and similarity hypotheses. We summarize important scaling and similarity concepts (hypotheses) that require testing; describe a mutual information framework for …
An Evaluation Of Emergent Macrophytes And Use Among Groups Of Aquatic Taxa, Kristopher J. Stahr, Mark A. Kaemingk
An Evaluation Of Emergent Macrophytes And Use Among Groups Of Aquatic Taxa, Kristopher J. Stahr, Mark A. Kaemingk
School of Natural Resources: Faculty Publications
Aquatic vegetation serves an important ecological role. Previous research on the interactions of macrophytes and aquatic organisms has focused primarily on submersed macrophytes due to their structural complexity and associated ecological impacts. However, the role of emergent vegetation is far less understood and often overlooked because they lack structural complexity. We evaluated 3 common emergent macrophytes and an open water habitat, and determined use among multiple aquatic taxa. Pelican Lake, Nebraska, USA, served as our study system because it is dominated by 3 emergent macrophytes: common cattail (Typha latifolia), softstem bulrush (Schoenoplectus tabernaemontani), and common reed …
Droughtscape, Summer 2017, National Drought Mitigation Center
Droughtscape, Summer 2017, National Drought Mitigation Center
DroughtScape: Quarterly Newsletter of the National Drought Mitigation Center (2007–2023)
Contents
Drought policy write shops conclude in Caribbean
Drought encroaches on Northern Plains in second quarter
Impact tool racks up submissions in second quarter
Maps on new website highlight drought effects on ag industry
Centers release new flash drought tool: QuickDRI
NDMC contributes to EU report on disaster risk management
Groups earn Climate Adaptation award for work with tribes
NDMC, ICPAC director talk collaboration on drought in Greater Horn of Africa
Up next in MENA: Drought vulnerability assessments
Recreational Angler Site Choice And Behavior Within Midwestern Reservoirs, Brian S. Harmon
Recreational Angler Site Choice And Behavior Within Midwestern Reservoirs, Brian S. Harmon
School of Natural Resources: Dissertations, Theses, and Student Research
Anglers are the dominant predator in most inland fisheries. Although anglers make decisions across multiple scales, most research targets larger spatial and temporal scales of angler behavior, and thus little is known regarding angler behavior within a fishing trip. Outcomes of within-trip behavior affect larger spatial and temporal scales and are thus important to the management of recreational fisheries. Bank angler site choice was recorded at four reservoirs in the Salt Valley system across the open-water season of 2016. Previous research indicated that angler distribution did not match the distribution of fish, so another approach was taken. Counts of anglers …
Trophic Dynamics Of Flathead Catfish In The Missouri River Bordering Nebraska, Dylan R. Turner
Trophic Dynamics Of Flathead Catfish In The Missouri River Bordering Nebraska, Dylan R. Turner
School of Natural Resources: Dissertations, Theses, and Student Research
Understanding the trophic dynamics of large, riverine ecosystems is complex and requires knowledge from several inputs and outputs of the ecosystem. Most riverine ecosystems have been altered in some way whether through damming, channelizing, or diverting water. The Missouri River is not immune to these anthropogenic alterations. The river has dams throughout its middle portion and is channelized from Sioux City, Iowa to its confluence with the Mississippi River. Flathead Catfish pylodictus olivarius are one of the most ecologically harmful introduced species but little research has looked at the influence native populations of Flathead Catfish have on native prey populations …
Fish And Macroinvertebrate Response To Restored Off Channel Habitats On The Lower Platte River, Nebraska, Caleb Uerling
Fish And Macroinvertebrate Response To Restored Off Channel Habitats On The Lower Platte River, Nebraska, Caleb Uerling
School of Natural Resources: Dissertations, Theses, and Student Research
Anthropogenic alterations to large rivers ranging from impoundments to levees have caused many rivers to no longer access the floodplain. The ecological integrity of floodplain rivers depends on the interaction between main-channel and floodplain habitats. Fish communities inhabiting floodplain habitats are often dictated by the type of habitat and conditions within that habitat. As restoration projects are undertaken it is imperative that managers understand how fish and macroinvertebrates respond to these events. We collected fish, macroinvertebrates, and habitat parameters on two restored floodplain habitats on the lower Platte River, Nebraska to answer questions about aquatic community response to floodplain restoration …
Pheasant Response To Lead Ingestion, Travis J. Runia, Alex J. Solem
Pheasant Response To Lead Ingestion, Travis J. Runia, Alex J. Solem
The Prairie Naturalist
Lead is toxic to all vertebrate species and ingestion of spent lead pellets from hunting is the primary method of exposure in birds. Both acute and chronic effects occur in response to lead ingestion including death, weight loss, and reduced body function, but the effect is highly variable among species. Most research has focused on lead ingestion impacts on waterfowl, but less is known about the effects of lead ingestion by upland game such as ring-necked pheasants (Phasianus colchicus). We gavage- fed zero, one, or three lead pellets to 90 (n = 30/group) captive-raised adult hen pheasants and monitored survival …
Long-Term Changes In Canada Goose Nest Success And Nest Densities At An Iowa Wetland Complex, Brenna N. Ness, Robert W. Klaver, Guy G. Zenner
Long-Term Changes In Canada Goose Nest Success And Nest Densities At An Iowa Wetland Complex, Brenna N. Ness, Robert W. Klaver, Guy G. Zenner
The Prairie Naturalist
Giant Canada geese (Branta canadensis maxima) were extirpated from Iowa by the early 1900s due to unregulated hunting, egg gathering, and wetland drainage in the nineteenth century (Bishop 1978). Ef- forts to reintroduce Canada geese in Iowa began in 1964 (Bishop and Howing 1972) and involved releasing flightless adults and goslings at nearly 30 sites across the state (Zenner and LaGrange 1998a). In 1972, 13 flightless pairs were released at Rice Lake Wildlife Management Area (WMA; Bishop 1978). By 1989, the breeding population of Canada geese at Rice Lake WMA had increased to 420 nesting adults (G. G. Zenner, Iowa …
Assessing Parturition Date Synchrony For North Dakota Ungulates, Eric S. Michel, Jonathan A. Jenks, William F. Jensen
Assessing Parturition Date Synchrony For North Dakota Ungulates, Eric S. Michel, Jonathan A. Jenks, William F. Jensen
The Prairie Naturalist
Reproductive parameters such as conception date, and therefore parturition date, influence offspring characteristics such as sex ratio and birth mass. For example, late-conceiving reindeer (Rangifer tarandus) produced more female than male offspring compared to those who conceived early (Holand et al. 2006). Females that conceive later and therefore give birth later also can produce lighter offspring compared to those who conceive early (Schwartz et al. 1994, Holand et al. 2006). Because birth mass is positively related to adult body mass (Michel et al. 2015), conception and parturition date likely affect adult phenotype. In turn, this may influence survival because heavy …
Notes: Examining The Potential Competitive Effects Of Ventenata Dubia On Annual And Perennial Grasses, Shawn Mckay, Lesley R. Morris, Christopher E. Morris, Elizabeth A. Leger
Notes: Examining The Potential Competitive Effects Of Ventenata Dubia On Annual And Perennial Grasses, Shawn Mckay, Lesley R. Morris, Christopher E. Morris, Elizabeth A. Leger
The Prairie Naturalist
Portions of the United States are becoming increasingly dominated by annual species, with cheatgrass (Bromus tectorum L.) and medusahead (Taeniatherum caput-medusae [L.] Nevski) as the most common and well-known invaders (Bansal et al. 2014). Other invasive annual species also are present and increasing in abundance, including ventenata (Ventenata dubia [Leers] Coss.), an invasive annual grass that has been expanding within the Pacific Northwest, Great Basin, and Great Plains regions of the United States. Ventenata was first reported in North America in 1952 in Washington (Old and Callihan 1987) and has since spread to 7 western states in the USA (CA, …
Book Reviews: American Serengeti: The Last Big Animals Of The Great Plains. Dan Flores., Daniel S. Licht
Book Reviews: American Serengeti: The Last Big Animals Of The Great Plains. Dan Flores., Daniel S. Licht
The Prairie Naturalist
Before describing what Flores’ book is, I must state what it is not. It is not a technical book designed for scholarly readers. Sources are not fully cited, and the bibliography is of limited scope. Nor is it a comprehensive book of all the megafauna of the Great Plains. Although chapters are devoted to extant species such as American bison (Bison bison), pronghorn (Antilocapra americana), and coyote (Canis latrans), there are only passing references to mule and white-tailed deer (Odocoileus hemionus and O. virginianus, respectively), elk (Cervus canadensis), and bighorn sheep (Ovis canadensis). Rather, Flores devotes chapters to grizzly bears …
Diel And Monthly Movement Rates By Migratory And Resident Female Pronghorn, Paul F. Jones, T. Andrew Hurly, Chelsea Jensen, Karl Zimmer, Andrew Jakes
Diel And Monthly Movement Rates By Migratory And Resident Female Pronghorn, Paul F. Jones, T. Andrew Hurly, Chelsea Jensen, Karl Zimmer, Andrew Jakes
The Prairie Naturalist
Animal movement patterns are variable, with certain species primarily being diurnal and others nocturnal. Pronghorn (Antilocapra americana) are regarded as diurnal animals moving predominately during daylight hours. Anecdotal accounts, however, suggest that pronghorn move during the night but the extent, frequency, and importance of these nocturnal movement behaviors are unknown. To evaluate movements, we combined global positioning system relocation data from collared female pronghorn in the Northern Sagebrush Steppe between 2003 and 2007 with sunrise/sunset data within a geographical information system platform. We assessed whether mean and maximum movement rates were influenced by diel period (dawn, day, dusk, and night), …
The Pitfalls Of Data Analysis, Christopher N. Jacques
The Pitfalls Of Data Analysis, Christopher N. Jacques
The Prairie Naturalist
Greetings GPNSS members! I hope summer finds you well and enjoying the Great Plains in some way, whether that be starting a new field season, a long-overdue break from the office, or planning your next family vacation. For me, transitioning away from the demands of the Spring 2017 semester to data analyses and preparation of my own manuscripts are particularly exciting (well, as exciting as “office life” can be!). Over the past month, I have initiated a number of grandiose summer objectives, most of which include analysis or in some instances, re-analysis of data to address concerns raised during peer-review. …
The Prairie Naturalist: The Journal Of The Great Plains Natural Science Society Volume 49 No. 1
The Prairie Naturalist: The Journal Of The Great Plains Natural Science Society Volume 49 No. 1
The Prairie Naturalist
TABLE OF CONTENTS
1 EDITOR’S NOTE
RESEARCH ARTICLES
3 Diel and Monthly Movement Rates by Migratory and Resident Female Pronghorn Paul F. Jones, T. Andrew Hurley, Chelsea Jensen, Karl Zimmer, and Andrew Jakes
13 Pheasant Response to Lead Ingestion Travis J. Runia and Alex J. Solem
NOTES
19 Examining the Potential Competitive Effects of Ventenata dubia on Annual and Perennial Grasses Shawn McKay, Lesley R. Morris, Christopher E. Morris, and Elizabeth A. Leger
23 Adult Red-Headed Woodpecker Interaction with Bullsnake After Arboreal Nest Depradation Brittany J. Yohannes and James L. Howitz
26 Breeding Trumpeter Swans in Northeastern North Dakota Mark …
Adult Red-Headed Woodpecker Interaction With Bullsnake After Arboreal Nest Depredation, Brittney J. Yohannes, James L. Howitz
Adult Red-Headed Woodpecker Interaction With Bullsnake After Arboreal Nest Depredation, Brittney J. Yohannes, James L. Howitz
The Prairie Naturalist
Nest success rates often are higher among cavity-nesting birds than those that nest in open cups or on the ground. Among cavity-nesting birds, woodpeckers have some of the highest rates of nest success. A review of woodpecker nesting ecology across species documented nest success ranging from 0.42 to 1.00 with a median of 0.80 (n = 84 populations), and that predation was low, ranging from 0.00 to 0.35 with a median of 0.13 (n = 33 populations). The constrained opening to a cavity nest limits predation to relatively small animals or those able to break open cavity walls. …
Breeding Trumpeter Swans In Northeast- Ern North Dakota, Mark R. Fisher, Matthew D. Sprenger, Chris R. Roed, David O. Lambeth
Breeding Trumpeter Swans In Northeast- Ern North Dakota, Mark R. Fisher, Matthew D. Sprenger, Chris R. Roed, David O. Lambeth
The Prairie Naturalist
The trumpeter swan (Cygnus buccinator) is North America’s largest waterfowl species and breeds in wetland habitats across the northern United States, Alaska and Canada. Summer observations by ornithologists, including those of John James Audubon in 1843, indicated a substantial number of trumpeter swans were breeding in North Dakota prior to European settlement. However, the species was extirpated by the late 1800s and there were no subsequent breeding records for over a century (Stewart 1975). Since 2007, 5 recent nesting records indicate that trumpeter swan has returned as a regular breeding species in North Dakota.
A continental range-wide breeding trumpeter swan …
Erratum
The Prairie Naturalist
In the June 2016 issue (48:1, page 56), the Editorial Staff inadvertently omitted corrections provided by the corresponding author prior to publication. In the second paragraph of the left column (i.e., 5 lines from the bottom), “is” should be replaced with “could be.” Similarly, in the right column (9 lines from the top), “In additional” should be replaced with “In addition.” On page 58, the following text should be placed after “institutions” in the Appendix caption: “University of Central Missouri (CMSU), Truman State University (TSU).” Lastly, within the appendix, all instances of MHP should be replaced with FHSM and “OF” …
Use Of Satellite Trap Transmitters In Capturing Mountain Lions, Randy D. Johnson, Jonathan A. Jenks, Stephanie A. Tucker
Use Of Satellite Trap Transmitters In Capturing Mountain Lions, Randy D. Johnson, Jonathan A. Jenks, Stephanie A. Tucker
The Prairie Naturalist
The use of safe and humane methods for the capture of wild animals is imperative in wildlife research, wildlife damage management, and feral animal control. When capturing animals successfully and humanely, several items must be addressed, including animal safety, personnel safety, non-target captures, and cost (Sikes et al. 2016). Additionally, public pressures against the use of traps have led to significant changes in trapping regulations across North America and beyond (Andelt et al. 1999, Darrow and Shivik 2008) and can place research projects at risk to loss of Institutional Animal Care and Use Committee (IACUC) approval (Larkin et al. 2003). …
Evaluating The Impacts Of Farmers’ Behaviors On A Hypothetical Agricultural Water Market Based On Double Auction, Erhu Du, Ximing Cai, Barbara Minsker
Evaluating The Impacts Of Farmers’ Behaviors On A Hypothetical Agricultural Water Market Based On Double Auction, Erhu Du, Ximing Cai, Barbara Minsker
Daugherty Water for Food Global Institute: Faculty Publications
Agricultural water markets are considered effective instruments to mitigate the impacts of water scarcity and to increase crop production. However, previous studies have limited understanding of how farmers’ behaviors affect the performance of water markets. This study develops an agent-based model to explicitly incorporate farmers’ behaviors, namely irrigation behavior (represented by farmers’ sensitivity to soil water deficit k) and bidding behavior (represented by farmers’ rent seeking l and learning rate b), in a hypothetical water market based on a double auction. The model is applied to the Guadalupe River Basin in Texas to simulate a hypothetical agricultural water market under …
Landowner And Practitioner Perspectives On Private Land Conservation Programs, Michelle L. Lute, Caitlyn R. Gillespie, Dustin R. Martin, Joseph J. Fontaine
Landowner And Practitioner Perspectives On Private Land Conservation Programs, Michelle L. Lute, Caitlyn R. Gillespie, Dustin R. Martin, Joseph J. Fontaine
Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications
Efforts to reverse declines in native grasslands benefit from agricultural policies that encourage private land conservation. The U.S. Department of Agriculture’s Conservation Reserve Program (CRP) improved conservation across landscapes but enrollment has declined. We used sequential exploratory mixed methods to compare landowner and conservation practitioners’ perceptions, evaluate perceived benefits, and identify potential improvements to CRP. Focus groups of practitioners informed a quantitative survey of landowners who had properties >160 total acres in Nebraska. Results suggest potential misalignment in perceptions between practitioners and landowners. Practitioners were concerned that conservation, especially of wildlife, was secondary to profit. But the majority of landowners …
Regime Shifts And Panarchies In Regional Scale Social-Ecological Water Systems, Lance Gunderson, Barbara Cosens, Brian C. Chaffin, Craig Anthony (Tony) Arnold, Alexander K. Fremier, Ahjond S. Garmestani, Robin Kundis Craig, Hannah Gosnell, Hannah E. Birge, Craig R. Allen, Melinda Harm Benson, Ryan R. Morrison, Mark C. Stone, Joseph Hamm, Kristine Nemec, Edella C. Schlager, Dagmar Llewellyn
Regime Shifts And Panarchies In Regional Scale Social-Ecological Water Systems, Lance Gunderson, Barbara Cosens, Brian C. Chaffin, Craig Anthony (Tony) Arnold, Alexander K. Fremier, Ahjond S. Garmestani, Robin Kundis Craig, Hannah Gosnell, Hannah E. Birge, Craig R. Allen, Melinda Harm Benson, Ryan R. Morrison, Mark C. Stone, Joseph Hamm, Kristine Nemec, Edella C. Schlager, Dagmar Llewellyn
Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications
In this article we summarize histories of nonlinear, complex interactions among societal, legal, and ecosystem dynamics in six North American water basins, as they respond to changing climate. These case studies were chosen to explore the conditions for emergence of adaptive governance in heavily regulated and developed social-ecological systems nested within a hierarchical governmental system. We summarize resilience assessments conducted in each system to provide a synthesis and reference by the other articles in this special feature. We also present a general framework used to evaluate the interactions between society and ecosystem regimes and the governance regimes chosen to mediate …
Transcriptomic Effects Of Dispersed Oil In A Non-Model Decapod Crustacean, Hernan Vázquez-Miranda, Brent P. Thoma, Juliet M. Wong, Darryl L. Felder, Keith A. Crandall, Heather D. Bracken-Grissom
Transcriptomic Effects Of Dispersed Oil In A Non-Model Decapod Crustacean, Hernan Vázquez-Miranda, Brent P. Thoma, Juliet M. Wong, Darryl L. Felder, Keith A. Crandall, Heather D. Bracken-Grissom
School of Natural Resources: Faculty Publications
Background. Oil spills are major environmental disasters. Dispersants help control spills, as they emulsify oil into droplets to speed bioremediation. Although dispersant toxicity is controversial, the genetic consequences and damages of dispersed oil exposure are poorly understood. We used RNA-seq to measure gene expression of flatback mudcrabs (Eurypanopeus depressus, Decapoda, Brachyura, Panopeidae) exposed to dispersed oil. Methods. Our experimental design included two control types, oil-only, and oil-dispersant treatments with three replicates each. We prepared 100 base pair-ended libraries from total RNA and sequenced them in one Illumina HiSeq2000 lane. We assembled a reference transcriptome with all replicates per treatment, …
Land Use As An Indicator Of Stream Habitat Quality In Salt Creek, Adam Brown
Land Use As An Indicator Of Stream Habitat Quality In Salt Creek, Adam Brown
Department of Environmental Studies: Undergraduate Student Theses
This study sought to quantify land use types in Lancaster County and identify which, if any, environmental parameters were significantly influencing fish and invertebrate distribution in the Salt Creek basin. Historical sampling data were obtained from the Nebraska Department of Environmental Quality. Watershed land cover maps were created and the percentages of urban/developed, forested, row crop, and grassland use were calculated. This data was combined with NDEQ water quality parameter, fish, and invertebrate sampling data to conduct nonmetric multidimensional scaling. This analysis did not provide significant conclusions about the driving force of fish and invertebrate distribution in this region because …
Integration Of Hydrogeophysical Datasets For Improved Water Resource Management In Irrigated Systems, Catherine E. Finkenbiner
Integration Of Hydrogeophysical Datasets For Improved Water Resource Management In Irrigated Systems, Catherine E. Finkenbiner
School of Natural Resources: Dissertations, Theses, and Student Research
Water scarcity is predicted to be the major limitation to increasing agronomic outputs to meet future food and fiber demands. With the agricultural sector accounting for 80 – 90% of all consumptive water use and an average water use efficiency (WUE) of less than 45%, major advances must be made in irrigation water management. Precision agriculture, specifically variable-rate irrigation (VRI) and variable-speed irrigation (VSI) systems, offers the technologies to address and manage for infield variability and incorporate that into management decisions. The major limitation to implementing this technology often lies in the management of spatial datasets and the development of …
Heterogeneity Of Avian Breeding Habitat On Grazing Lands Of The Northern Great Plains, Maggi S. Sliwinski
Heterogeneity Of Avian Breeding Habitat On Grazing Lands Of The Northern Great Plains, Maggi S. Sliwinski
School of Natural Resources: Dissertations, Theses, and Student Research
Native rangelands in the Great Plains are largely privately owned and used for beef production. Vegetation heterogeneity is important for maintaining biodiversity, but private land may be more homogenous than desired. My research had two components: 1) to examine whether a variety of grazing strategies created vegetation heterogeneity in a large, intact rangeland, and 2) to understand beef producers’ attitudes about vegetation heterogeneity.
First, I sampled vegetation structure, composition, and bird abundance at multiple plots on eleven management units in Cherry County, Nebraska. Units were managed with commonly used grazing strategies (e.g., short-duration grazing and season-long continuous grazing). I examined …
Problematizing Socio-Scientific Issues: An Approach To Understanding Student Decision-Making Using Construal Level Theory, Ashley M. Peterson
Problematizing Socio-Scientific Issues: An Approach To Understanding Student Decision-Making Using Construal Level Theory, Ashley M. Peterson
School of Natural Resources: Dissertations, Theses, and Student Research
Socio-scientific issues (SSIs) are challenges at the intersection of science and everyday life that require use of scientific knowledge, argumentation skills, personal values, and morals to articulate science-informed decisions. While addressing SSIs, the ways in which individuals define a problem will influence the solution or decision reached. The problem definition can differ along many dimensions, including content and construal level. A construal is a mental construction of the past and future, other places and people, and unlikely events. Construal Level Theory (CLT) suggests pro-environmental intentions are associated with abstract situations. I explore the application of CLT to teaching and learning …
Plant Diversity Influences The Structure And Function Of A Restored Prairie And Its Responses To Added Disturbances, Rebecca Bevans
Plant Diversity Influences The Structure And Function Of A Restored Prairie And Its Responses To Added Disturbances, Rebecca Bevans
School of Natural Resources: Dissertations, Theses, and Student Research
As global warming, human conversion of natural landscapes to agricultural uses, and widespread biodiversity losses continue to alter the ecosystems we depend on, an understanding of the relationship between ecosystem structure, composition, and function is needed to maintain valuable ecosystem states and their associated functions. Research testing the limits of an ecosystem’s ability to maintain essential structure and functioning under disturbance conditions can aid in this goal.
In this study, I measured the relationship between plant diversity, community structure and functional traits, and their responses to added disturbances. I added disturbances representing those either caused or intensified by human activity …
Predation Risk: A Potential Mechanism For Effects Of A Wind Energy Facility On Greater Prairie-Chicken Survival, Jennifer A. Smith, Mary B. Brown, J.O. Harrison, Larkin A. Powell
Predation Risk: A Potential Mechanism For Effects Of A Wind Energy Facility On Greater Prairie-Chicken Survival, Jennifer A. Smith, Mary B. Brown, J.O. Harrison, Larkin A. Powell
School of Natural Resources: Faculty Publications
Recent expansion of the wind energy industry has raised concerns about the potential effects of wind energy facilities on prairie grouse. For example, efforts have been made to evaluate indirect effects on prairie grouse survival, but it is also critical to investigate the underlying mechanisms to direct conservation strategies. The objective of this study was to investigate the indirect effects of a wind energy facility on the survival of female Greater Prairie-Chickens (Tympanuchus cupido pinnatus) and on the occupancy of avian and mammalian predators. Between March and July of 2013 and 2014, we investigated spatial variation in predation risk by …
Nest Site Selection And Nest Survival Of Eastern Wild Turkeys In A Pyric Landscape, Nathan A. Yeldell, Bradley S. Cohen, Andrew R. Little, Bret A. Collier, Michael J. Chamberlain
Nest Site Selection And Nest Survival Of Eastern Wild Turkeys In A Pyric Landscape, Nathan A. Yeldell, Bradley S. Cohen, Andrew R. Little, Bret A. Collier, Michael J. Chamberlain
School of Natural Resources: Faculty Publications
Pine (Pinus spp.)-dominated forests are commonly managed with prescribed fire in the southeastern United States to reduce fuel loads, maintain diverse plant communities, and increase habitat quality for wildlife. Prescribed fire alters understory vegetation, which is a key component of nesting habitat for ground-nesting birds. We assessed the influences of vegetation, prescribed fire, and landscape features (e.g., roads, edge) on nest site selection and nest survival of eastern wild turkeys (Meleagris gallopavo silvestris) in a pine-dominated ecosystem in west-central Louisiana. We radio-marked 55 female wild turkeys and evaluated vegetation and landscape characteristics associated with 69 nests during the …