Open Access. Powered by Scholars. Published by Universities.®
Physical Sciences and Mathematics Commons™
Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 11 of 11
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 …
The Influence Of Nutrients And Physical Habitat In Regulating Algal Biomass In Agricultural Streams, Mark D. Munn, Jeffrey Frey, Anthony Tesoriero
The Influence Of Nutrients And Physical Habitat In Regulating Algal Biomass In Agricultural Streams, Mark D. Munn, Jeffrey Frey, Anthony Tesoriero
United States Geological Survey: Water Reports and Publications
This study examined the relative influence of nutrients (nitrogen and phosphorus) and habitat on algal biomass in five agricultural regions of the United States. Sites were selected to capture a range of nutrient conditions, with 136 sites distributed over five study areas. Samples were collected in either 2003 or 2004, and analyzed for nutrients (nitrogen and phosphorous) and algal biomass (chlorophyll a). Chlorophyll a was measured in three types of samples, fine-grained benthic material (CHLFG), coarse-grained stable substrate as in rock or wood (CHLCG), and water column (CHLS). Stream and riparian habitat were characterized at each site. TP ranged from …
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.