Open Access. Powered by Scholars. Published by Universities.®
- Discipline
- Publication Year
- Publication
- Publication Type
Articles 1 - 30 of 128
Full-Text Articles in Entire DC Network
Economic Impact Of The Pork Industry On South Dakota, Gary Taylor
Economic Impact Of The Pork Industry On South Dakota, Gary Taylor
Economics Commentator
No abstract provided.
Economic Impact Of The Beef Industry On South Dakota, Gary Taylor
Economic Impact Of The Beef Industry On South Dakota, Gary Taylor
Economics Commentator
No abstract provided.
Corn Use In South Dakota, Henry Brown, Matthew Diersen
Corn Use In South Dakota, Henry Brown, Matthew Diersen
Economics Commentator
No abstract provided.
Economic Impact Of Agriculture On South Dakota, Gary Taylor
Economic Impact Of Agriculture On South Dakota, Gary Taylor
Economics Commentator
No abstract provided.
Determining Impacts Of Mountain Lions On Bighorn Sheep And Other Prey Sources In The Black Hills, Joshua B. Smith
Determining Impacts Of Mountain Lions On Bighorn Sheep And Other Prey Sources In The Black Hills, Joshua B. Smith
Electronic Theses and Dissertations
From 2009 to 2013, we assessed cougar (Puma concolor) feeding habits and bighorn sheep (Ovis canadensis) population dynamics in the Black Hills, South Dakota. We used Global Positioning System (GPS) telemetry to locate 1,506 cougar feeding events and found deer (Odocoileus spp.; 83%), primarily white-tailed deer (O. virginianus), dominated cougar diets. Overall ungulate kill rate averaged 0.79 ungulates/week (range = 0.13–1.75 ungulates/week), and was significantly higher (P < 0.001) in summer (xˉ = 0.92; SE = 0.06) than in winter (xˉ = 0.62; SE = 0.06). In contrast, biomass consumed was significantly higher (P = 0.033) in winter (xˉ = 8.23 kg/day; SE = 0.96) than in summer (xˉ = 5.45 kg/day; SE = 0.43), primarily as a result of increased scavenging (winter = 0.21 events/week; summer = 0.08 events/week), which represents the highest documented rate for cougar populations studied. We also documented a relatively high rate of chronic wasting disease- (CWD) infected elk in 2 cougar (1 male; 1 female) diets (64%; 95% CI = 50.3–78.3%) and speculate that CWD infection likely increased elk predation risk. Annual lamb survival was 0.02 (SE = 0.01) with pneumonia (36%) and predation (30%) the leading causes of mortality. We found pneumonia and predation were temporally heterogeneous with lambs most susceptible to predation during the first 2–3 weeks of life, while the greatest risk from pneumonia occurred from weeks 4–8. Annual ewe survival was 0.81 (SE = 0.04) with pneumonia (19%) and predation (19%) the leading causes of documented mortality; 48% were unknown. Additionally, we used vaginal implant transmitters (VITs) to assess capture efficiency and document parturition and neonate lamb bed site selection for bighorn sheep. We found successful VITs increased capture efficiency (95%) over unsuccessfully-vitted ewes (81%) and ewes not equipped with VITs (70%). Bighorn ewes selected for rugged terrain at both macro- and microhabitat scales, while at the macrohabitat scale ewes selected for areas that were close to perennial streams on south and west facing slopes and against anthropogenic disturbance. At the microhabitat scale, neonate lambs tended to select for greater cover and against north facing slopes.
Insuring Corn In South Dakota, Matthew Diersen
Insuring Corn In South Dakota, Matthew Diersen
Economics Commentator
No abstract provided.
Ecology Of Glacial Relict Fishes In South Dakota's Sandhills Region, Eli Felts
Ecology Of Glacial Relict Fishes In South Dakota's Sandhills Region, Eli Felts
Electronic Theses and Dissertations
Native stream fish zoogeography has changed substantially across North America during the last century as habitat degradation, stream fragmentation and introductions of nonnative species have led to numerous extinctions, extirpations and altered distributions. Insufficient information regarding imperiled species often results in reactive, rather than proactive, management, and knowledge of species status and ecology is critical in identifying conservation priorities. South Dakota populations of three dace species (northern redbelly dace Chrosomus eos, finescale dace Chrosomus neogaeus, and pearl dace Margariscus margarita) are relict of Pleistocene Glaciation and are isolated from the northern core of their distribution, but little information exists regarding …
Movements, Survival, And Sightability Of White-Tailed Deer In Southeastern South Dakota, Trenton J. Haffley
Movements, Survival, And Sightability Of White-Tailed Deer In Southeastern South Dakota, Trenton J. Haffley
Electronic Theses and Dissertations
To effectively manage white-tailed deer (Odocoileus virginianus) populations, managers need to identify population parameters including but not limited to movements, survival and cause-specific mortality. It also is helpful to examine population size and density. The primary objectives of my study were to document seasonal migration, estimate survival rates for female adult white-tailed deer, and generate a sightability model for deer in southeastern South Dakota. Secondary objectives were to calculate seasonal home ranges and document cause-specific mortality. Forty four adult female white-tailed deer were monitored from February 2009 to January 2011 in Bon Homme and Yankton counties. I documented 38 seasonal …
Economic Impact Of Agriculture On South Dakota, Gary Taylor
Economic Impact Of Agriculture On South Dakota, Gary Taylor
Economics Commentator
No abstract provided.
South Dakota Agricultural Land Market Factors, Burton Pflueger, Larry Janssen
South Dakota Agricultural Land Market Factors, Burton Pflueger, Larry Janssen
Economics Commentator
No abstract provided.
South Dakota Agricultural Land Cash Rent Values: 2012, Burton Pflueger, Larry Janssen
South Dakota Agricultural Land Cash Rent Values: 2012, Burton Pflueger, Larry Janssen
Economics Commentator
No abstract provided.
South Dakota Agricultural Land Values: 2012, Burton Pflueger, Larry Janssen
South Dakota Agricultural Land Values: 2012, Burton Pflueger, Larry Janssen
Economics Commentator
No abstract provided.
2011 Corn Pest Risk Survey Results, Scott Fausti, Jonathan Lundgren, Emmanuel Opoku
2011 Corn Pest Risk Survey Results, Scott Fausti, Jonathan Lundgren, Emmanuel Opoku
Economics Commentator
No abstract provided.
Economic Impact Of Agriculture On South Dakota, Gary Taylor
Economic Impact Of Agriculture On South Dakota, Gary Taylor
Economics Commentator
No abstract provided.
South Dakota 2011 Crop Forecast, Kelley Highbear, Matthew Diersen
South Dakota 2011 Crop Forecast, Kelley Highbear, Matthew Diersen
Economics Commentator
No abstract provided.
Buckwheat: A Minor Crop In South Dakota, Irene Graves, Robert Hall
Buckwheat: A Minor Crop In South Dakota, Irene Graves, Robert Hall
SDSU Extension Extra Archives
Buckwheat is primarily an emergency crop in South Dakota; however, buckwheat is considered a full-sea¬son crop in Minnesota, North Dakota, and Manitoba. Buckwheat probably originated in China. It was first introduced to the United States by Dutch colonists in the Hudson River Valley in the early 1600s.
Integrated Pest Management Strategies For Grasshopper Management In South Dakota, Darrell L. Deneke, Justin Keyser
Integrated Pest Management Strategies For Grasshopper Management In South Dakota, Darrell L. Deneke, Justin Keyser
SDSU Extension Extra Archives
Historically, grasshoppers have been a chief insect enemy to farmers and ranchers in South Dakota and the United States. Although grasshoppers are a natural component of our ecosystem, with some even being beneficial, in large numbers they can have an econom¬ic impact on agricultural commodities. When grasshoppers reach threatening populations that are economically damaging to our crops and rangelands, we typically use chemicals (insecticide) as the main method of control. However, there are integrated pest management (IPM) strategies that have been developed over the years as an approach to con¬trolling such pests as grasshoppers. These IPM strate¬gies include using biological, …
Grasshopper Outlook On Rangelands: 2011, Martin Beutler, Roger Gates, Bruce Helbig
Grasshopper Outlook On Rangelands: 2011, Martin Beutler, Roger Gates, Bruce Helbig
SDSU Extension Extra Archives
Grasshoppers are often found to be a significant problem for both farmers and ranchers. Even though grasshoppers are a normal component of a forage ecosystem and generally exert minimal disturbance, problems occur when conditions lead to grasshop¬per populations that increase to the point where they cause millions of dollars of damage. Grasshopper outbreaks are the result of a complex combination of factors. Several factors are beyond the control of managers. However, the “pasture microcli¬mate” (the immediate environment where grasshop¬pers hatch, grow, and reproduce) may be subject to subtle manipulation. Because grasshopper outbreaks are progressive and cumulative, small interruptions or reductions …
Feed Costs For Dairy: Advantage For South Dakota?, Alvaro Garcia
Feed Costs For Dairy: Advantage For South Dakota?, Alvaro Garcia
SDSU Extension Extra Archives
Past reports make reference to advantages offered by states or regions when costs of production are compared (Garcia and Kalscheur 2005). The U.S. Department of Agriculture’s Economic Research Service recently published figures for different regions of the United States. The figures, available in USDA ERSW site (http://www.ers.usda.gov), show the economic advantage of South Dakota and neighboring states for dairy production. South Dakota currently ranks 14th nationally in per-cow milk production, and this recent growth came from improvements in both milk quality and herd management. Between the third quarters of 2008 and 2009, cow numbers and milk production increased in the …
Productivity And Trophic Interactions In The Missouri River Impoundments, Mark J. Fincel
Productivity And Trophic Interactions In The Missouri River Impoundments, Mark J. Fincel
Electronic Theses and Dissertations
Standardized monitoring is a vital component of fisheries assessment in Missouri River impoundments. In South Dakota, annual variation in fish growth and abundance is used to monitor changes in fish populations and develop strategies (i.e. regulations) for managing recreational fishes. Although variation in fish abundance provides important insight into the status of fish populations, it can be difficult to link these changes to environmental conditions (i.e. hydrology) without concurrent information about reservoir productivity. Measures of nutrient concentration, algal biomass, and zooplankton composition/abundance provide important insights into reservoir productivity, but standardized approaches for collecting these measures have not been developed for …
Movement Patterns, Survival, And Sightability Of White-Tailed Deer (Odocoileus Virginianus) In Eastern South Dakota, Kevin A. Robling
Movement Patterns, Survival, And Sightability Of White-Tailed Deer (Odocoileus Virginianus) In Eastern South Dakota, Kevin A. Robling
Electronic Theses and Dissertations
Limited information is available on white-tailed deer (Odocoileus virginianus) movements, survival, density, and resource selection in the Prairie Pothole Region of South Dakota where semi-permanent wetland densities are relatively high. Primary objectives of this study were to develop a sightability model for aerial surveying and document seasonal movement patterns and survival rates for white-tailed deer in this region. Secondary objectives were to calculate seasonal home ranges, daily and seasonal movements relative to management unit boundaries, determine cause specific mortality, and evaluate summer and winter resource use and selection. From February 2009 – February 2010, 43 adult female white-tailed deer along …
Population Viability Analysis Of Swift Fox (Vulpes Velox) At The Badlands National Park, Indrani Sasmal
Population Viability Analysis Of Swift Fox (Vulpes Velox) At The Badlands National Park, Indrani Sasmal
Electronic Theses and Dissertations
The swift fox (Vulpes velox) was historically distributed in southwestern South Dakota including the region surrounding Badlands National Park (BNP). The species declined during the mid-1900s due to habitat fragmentation, non-target poisoning, and harvest. A remnant population occurred on USDA Forest Service lands in Fall River County, South Dakota. Following the successful reintroduction of the species in Canada (1983), a reintroduction program was initiated in BNP in the year 2003. Free-ranging swift fox from Colorado and Wyoming were translocated to BNP from 2003 to 2006. Despite these releases and observations of free-ranging swift fox occurring throughout western South Dakota, it …
Economic Impact Of Agriculture On South Dakota, Gary Taylor
Economic Impact Of Agriculture On South Dakota, Gary Taylor
Economics Commentator
No abstract provided.
Pasture, Rangeland, And Forage Pilot Insurance Program In South Dakota, Martin Beutler
Pasture, Rangeland, And Forage Pilot Insurance Program In South Dakota, Martin Beutler
SDSU Extension Extra Archives
South Dakota has been selected to participate in one of two government-subsidized pasture, rangeland, and forage risk management pilot insurance programs. These programs were developed by the USDA Risk Management Agency (RMA) to provide livestock produc¬ers the ability to purchase insurance protection for losses of forage produced for grazing or harvested for hay. One pilot program is based on a rainfall index and is being piloted in 16 states other than South Dakota. The second pilot insurance program is based on a veg¬etation index. This program is being piloted in nine states, including South Dakota
The South Dakota Agricultural Land Rental Market, Burton Pflueger
The South Dakota Agricultural Land Rental Market, Burton Pflueger
SDSU Extension Extra Archives
The “2010 SDSU Farm Real Estate Market Survey” report, South Dakota Cooperative Extension Service pub¬lication C276, contains information on current agricultural land values and cash rental rates by land use in different regions of South Dakota, with comparisons to values from earlier years. This Extension Extra highlights only rental information. For more complete information on South Dakota Agricultural Land Market Trends from 1991–2010, readers are encouraged to examine the electronic version of the complete research report, which is available at http://pubstorage.sdstate.edu/AgBio_Publications/articles/C276.pdf.
Recognizing And Managing Common Crop Disease In South Dakota, Martin A. Draper, Darrel Deneke
Recognizing And Managing Common Crop Disease In South Dakota, Martin A. Draper, Darrel Deneke
SDSU Extension Extra Archives
Diseases of plants may be expressed differently under varying environmental conditions or in various host species. Disease is the outward expression of an infection, yet in some cases there may be no outward evidence of disease. Outward expression may be some deviation from normal growth, change in appearance, or alteration of the quality or value of the crop. Plant diseases may be caused by biotic agents, infectious microorganisms, or abiotic causes such as chemical deposition, nutrient imbalances, or environmental factors. This publication concentrates on biotic or infectious diseases and provides information on common abiotic problems. Infectious plant diseases may be …
Winter Injury In Alfalfa: Assessment And Management, Edward K. Twidwell, Kevin D. Kephart
Winter Injury In Alfalfa: Assessment And Management, Edward K. Twidwell, Kevin D. Kephart
SDSU Extension Extra Archives
Injury to alfalfa plants during the winter can cause serious stand losses and is a major problem in growing alfalfa in South Dakota. Stand hardiness is affected by climatic conditions, soil condi¬tions, and cultural practices.
South Dakota's Rental Agreements: What Is A Legal Lease?, Burton Pflueger
South Dakota's Rental Agreements: What Is A Legal Lease?, Burton Pflueger
SDSU Extension Extra Archives
Each year the South Dakota Cooperative Ex¬tension Service receives many questions concern¬ing the legality of land lease agreements. South Dakota law addresses many aspects of land rental arrangements. The material in this publication is presented only as a guideline or reference. This material is presented with the understanding and intent that the authors are not providing legal ser-vices. South Dakota codified law has specific sec¬tions and language that pertain to agricultural and grazing leases. The following information is not intended to be an all-inclusive list of all provi¬sions of South Dakota law governing agricultural and grazing leases, but is provided …
An Evaluation Of Duck And Ring-Necked Pheasant Nest Survival And Nest Density In Relation To Patch Size And Landscape Variables In Eastern South Dakota, Keith J. Fisk
Electronic Theses and Dissertations
Grassland ecosystems in South Dakota have experienced significant transformations over the last 100 years. Landscapes are currently dominated by large agricultural fields interspersed with small, isolated grassland patches. These isolated grassland patches are hypothesized to experience decreased nest survival rates for ring-necked pheasants (Phasianus colchicus) and dabbling duck species due to small size and high degrees of fragmentation. Several natural resource agencies currently conserve grasslands throughout eastern South Dakota, but wildlife managers seek more information on how the size and spatial arrangement of grasslands affect targeted conservation strategies. Therefore, the objectives of this study were to: (1) evaluate the relationship …
South Dakota Fence Law, Burton Pflueger
South Dakota Fence Law, Burton Pflueger
SDSU Extension Extra Archives
Each year the South Dakota Cooperative Exten¬sion Service receives many questions about who is responsible for fixing fence between neighbors. South Dakota law addresses who is responsible and what type of fence should be constructed. The material in this publication is presented only as a guideline or ref¬erence; the authors of this publication are not provid¬ing legal services. South Dakota codified law has specific sections and language that pertain to what constitutes a legal fence between neighbors. The following information is not intended to be an all-inclusive list of all provi¬sions of South Dakota law governing fences, but is provided …