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- Endangered species (2)
- Prescribed fire (2)
- Biological control (1)
- Dual control (1)
- Dung Beetles (1)
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- Dung Decomposition (1)
- Dung Derived Nutrients (1)
- Greenhouse Gas Flux (1)
- Invasive species (1)
- Land cover (1)
- Land management (1)
- Nicrophorus americanus (1)
- Nutrient Cycling (1)
- Rangelands (1)
- Regime shifts (1)
- Remote sensing (1)
- Sitophilus granarius (1)
- Soil Nutrients (1)
- Stored product pests (1)
- Woody encroachment (1)
Articles 1 - 5 of 5
Full-Text Articles in Agronomy and Crop Sciences
American Burying Beetle, Plant Richness, And Soil Property Responses To Collapse Of Juniperus Virginiana Woodlands With Fire, Alison Ludwig
American Burying Beetle, Plant Richness, And Soil Property Responses To Collapse Of Juniperus Virginiana Woodlands With Fire, Alison Ludwig
Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research
Grasslands are declining in the Great Plains due to land use changes, woody plant encroachment, and loss of historic fire cycles. Prescribed burn associations have utilized prescribed fire to collapse invading woodlands and allow the restoration of grasslands. This fire is considered “extreme” because it is capable of changing the structure and function of an ecosystem. Our study site is the Loess Canyons Experimental Landscape, a long-term, ecoregion-scale experiment to apply prescribed fire across the region to restore grasslands. The Nebraska Natural Legacy Project established the Loess Canyons ecoregion as a Biologically-Unique Landscape in 2005 with the state’s wildlife action …
Extreme Fire As A Management Tool To Combat Regime Shifts In The Range Of The Endangered American Burying Beetle, Alison K. Ludwig, Daniel R. Uden, Dirac Twidwell
Extreme Fire As A Management Tool To Combat Regime Shifts In The Range Of The Endangered American Burying Beetle, Alison K. Ludwig, Daniel R. Uden, Dirac Twidwell
Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research
This study is focused on the population of federally-endangered American burying beetles in south-central Nebraska. It is focused on changes in land cover over time and at several levels of spatial scale, and how management efforts are impacting both the beetle and a changing landscape. Our findings are applicable to a large portion of the Great Plains, which is undergoing the same shift from grassland to woodland, and to areas where the beetle is still found.
Dual Biological Control: Characterization Of Fungi And Bacteria To Control Granary Weevil And Fungal Pathogens Of Stored Grain, Gülçin Ercan
Dual Biological Control: Characterization Of Fungi And Bacteria To Control Granary Weevil And Fungal Pathogens Of Stored Grain, Gülçin Ercan
Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research
Cereals are main food sources for humans and animals. However, during storage, cereal grains can be infested by insects and fungi. One of the most important insect storage pests is Sitophilus granarius (L., Coleoptera: Curculionidae). Adults and larvae can cause serious grain losses. In addition to insect pests, fungal pathogens may also invade the grain and cause economic loss, including contamination with mycotoxins, which threaten mammal health by causing serious disease. The most common mycotoxigenic grain fungi are species that belong to the genera Fusarium, Aspergillus and Penicillium. Currently, the most commonly used management strategies for insect and …
Effect Of Dung Beetles On Dung Decomposition And Nuntrient Cycling In A Nebraska Rangeland, Kenneth Shay Evans
Effect Of Dung Beetles On Dung Decomposition And Nuntrient Cycling In A Nebraska Rangeland, Kenneth Shay Evans
Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research
Management practice can have impacts on the abundance and frequency of dung beetle populations and nutrient cycling in grazing systems. Also, agriculture and livestock production land use is a considerable source of anthropogenic greenhouse gas (GHG) emissions, which are known to be one of the causes of global climate change. In this study, we evaluated the effect of dung beetle presence on the fluxes of greenhouse gasses (GHG’s) from dung pats in the semi-arid Sandhills region of Nebraska, by using closed chambers to measure the fluxes of carbon dioxide (CO2), methane (CH4) and nitrous oxide (N …
An Evaluation Of Watermelon (Citrullus Spp.) Germplasm For Additional Sources Of Resistance To The Twospotted Spider Mite (Tetranychus Urticae Koch)., Hector Cantu Jr.
An Evaluation Of Watermelon (Citrullus Spp.) Germplasm For Additional Sources Of Resistance To The Twospotted Spider Mite (Tetranychus Urticae Koch)., Hector Cantu Jr.
Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research
Fourteen U.S plant introduction (PI) accessions of C. lanatus var. lanatus (4), C. lanatus var. citroides (5) C. colocynthis (5) and a known susceptible commercial cultivar ‘Sugar Baby’ were evaluated for resistance to the twospotted spider mite, Tetranychus urticae Koch, in a limited free-choice and free-choice bioassay under laboratory conditions. The limited free choice bioassay, involved nine Petri dish cages that held five randomly assigned leaves individually inoculated with two adult females and one adult male. Eggs, larva, and adults were counted over a nine day period. The free choice bioassay involved the even distribution of three mite infested …