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Articles 1 - 12 of 12
Full-Text Articles in Physical Sciences and Mathematics
Demographic Consequences Of Off-River Nesting For Piping Plover (Charadrius Melodus) And Interior Least Tern (Sternula Antillarum Athalassos) In The Lower Platte River System, Nebraska, Elsa M. Forsberg
School of Natural Resources: Dissertations, Theses, and Student Research
Piping plovers (Charadrius melodus; hereafter, plovers) and interior least terns (Sternula antillarum athalassos; hereafter, terns) are two avian species that nest along the Lower Platte River system (LPRS) in Nebraska. In the LPRS, river sandbars provide natural nesting habitat, but off-river sites provide substantial nesting habitat especially when sandbar habitat is scarce. Although presumed to be important for the persistence of plovers and terns, off-river habitat is not self-sustaining and predicted to decline. Understanding the vital rates of plovers and terns in the LPRS will inform the role of off- river sites in the future conservation …
Habitat Heterogeneity In Nebraska Streams And Distribution Prediction For Tier-1 Cyprinids Using Multi-Scale Modeling Of Fluvial And Landscape Features, Connor P. Hart
School of Natural Resources: Dissertations, Theses, and Student Research
Multiscale environmental processes determine in-stream habitat conditions which drive species distributions. Habitat constitutes the physical template upon which ecological processes occur and species conduct life stage activities. Habitat heterogeneity promotes biodiversity of aquatic systems. Stream classification informs freshwater conservation by providing a useful framework to account for habitat heterogeneity, often based on landscape regions of similar environmental processes. A greater understanding of landscape-based classification frameworks as means to classify stream systems may improve understanding of drivers of biodiversity. Using Nebraska as a case study, on a statewide scale, objectives were 1) to characterize habitat availability for several at-risk fish species, …
Sturgeon Chub Distributional Patterns And Habitat Use And Benthic Fish Assemblage Structure In Missouri River Tributaries Of South Dakota, Mitchell R. Magruder
Sturgeon Chub Distributional Patterns And Habitat Use And Benthic Fish Assemblage Structure In Missouri River Tributaries Of South Dakota, Mitchell R. Magruder
School of Natural Resources: Dissertations, Theses, and Student Research
Native species of the Missouri River drainage inhabiting benthic habitats dominate state and federal lists of species at risk. Sicklefin Chub Macrhybopsis meeki and Sturgeon Chub Macrhybopsis gelida are two native Missouri River benthic minnows that are currently under review for federal listing under the Endangered Species Act (ESA) due to extensive population declines and local extirpations within their native range. Substantial alterations to the Missouri River threaten Macrhybopsis spp. and other benthic fishes; however, large, less impacted tributaries in South Dakota may act as refugia for native species. The extent of Sicklefin Chub and Sturgeon Chub populations is largely …
Nonbreeding Season Survival And Habitat Selection Of Northern Bobwhite In Northeastern Colorado, Joseph M. Wolske
Nonbreeding Season Survival And Habitat Selection Of Northern Bobwhite In Northeastern Colorado, Joseph M. Wolske
School of Natural Resources: Dissertations, Theses, and Student Research
Northern bobwhites (Colinus virginianus) have experienced range-wide population declines. Recent harvest data from northeastern Colorado suggests bobwhite populations have declined and populations can be sensitive to adult nonbreeding season survival. We monitored 157 bobwhites in northeastern Colorado, on the northern periphery of the species’ range, for the 2019-2020 and 2020-2021 nonbreeding seasons to estimate nonbreeding season survival and habitat selection. We used known-fate survival models to assess any variation in survival between the winter stages of early-winter, mid-winter, and late-winter, as well as sex, age class, and mass at the time of capture. Survival varied among winter stages, …
Impact Of Alternative Range Management Systems On Grasslands In The Central Platte River Valley, Nebraska, Luis E. Ramirez
Impact Of Alternative Range Management Systems On Grasslands In The Central Platte River Valley, Nebraska, Luis E. Ramirez
School of Natural Resources: Dissertations, Theses, and Student Research
Land management strategies can directly and indirectly affect plant assemblages and their behavior. Little research has been performed in south central Nebraska to quantify the effect of fire and grazing interactions on species composition, vegetation structure, forage quality, and potential cost associated with land management.
I evaluate the effect of season-long continuous, patch-burning, and rotational grazing approaches on vegetation and ranching costs to determine their value as conservation tools. This study includes data collected between 2007 and 2009 from grasslands in south central Nebraska. I found that land management influence plant assemblages by shifting communities when grazing and/or fire are …
Converted Railroad Corridors As Avian Habitat In Southeast Nebraska, Kevin L. Poague
Converted Railroad Corridors As Avian Habitat In Southeast Nebraska, Kevin L. Poague
School of Natural Resources: Dissertations, Theses, and Student Research
No abstract provided.
Limnological And Habitat Influences On Wetland Bird Communities In The Nebraska Sandhills, Timothy A. Cramer
Limnological And Habitat Influences On Wetland Bird Communities In The Nebraska Sandhills, Timothy A. Cramer
School of Natural Resources: Dissertations, Theses, and Student Research
No abstract provided.
Logistic Regression Models Of Habitat Use By Three Cyprinids In The Platte River, Nebraska, Shyi-Liang Yu
Logistic Regression Models Of Habitat Use By Three Cyprinids In The Platte River, Nebraska, Shyi-Liang Yu
School of Natural Resources: Dissertations, Theses, and Student Research
No abstract provided.
A Field Test Of Habitat Evaluation Procedures For Creek Chub (Semotilus Atromaculatus) And Channel Catfish (Ictalurus Punctatus), Donald W. Zaroban
A Field Test Of Habitat Evaluation Procedures For Creek Chub (Semotilus Atromaculatus) And Channel Catfish (Ictalurus Punctatus), Donald W. Zaroban
School of Natural Resources: Dissertations, Theses, and Student Research
No abstract provided.
Prairie Dog Population Growth: Relationships To Population Density, Habitat, And Livestock Grazing Management, Kelly A. Cable
Prairie Dog Population Growth: Relationships To Population Density, Habitat, And Livestock Grazing Management, Kelly A. Cable
School of Natural Resources: Dissertations, Theses, and Student Research
No abstract provided.
A Test Of Habitat Evaluation Models Using Avian Densities, Jeremy B. Cable
A Test Of Habitat Evaluation Models Using Avian Densities, Jeremy B. Cable
School of Natural Resources: Dissertations, Theses, and Student Research
No abstract provided.
Variation Of Whole Body Components As An Indicator Of Habitat Quality In Geomys Bursarius And Peromyscus Maniculatus, Joseph W. Nietfeldt
Variation Of Whole Body Components As An Indicator Of Habitat Quality In Geomys Bursarius And Peromyscus Maniculatus, Joseph W. Nietfeldt
School of Natural Resources: Dissertations, Theses, and Student Research
No abstract provided.