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SouthDakota, etc ; Sander vitreus; administrative management; gillnets; lakes; species recruitment; Show all 6 Subjects
Abstract:
... Above‐normal precipitation in the 1990s resulted in new waters and Walleye Sander vitreus fisheries across northeastern South Dakota. Concerns with overharvest led to the implementation of a Walleye minimum length limit (MLL) on many new fisheries, but over time most of the MLLs were removed. We were interested in knowing why the MLLs failed. We compared Walleye gill‐net data and angler creel data ...
SouthDakota, etc ; COVID-19 infection; measles; public health; surveys; vaccination; vaccines; Show all 7 Subjects
Abstract:
... Governments are trying various strategies to boost COVID-19 vaccination rates, including vaccine mandates. Popular support for such mandates, however, is in flux in many countries, including the United States. The objective of this study is to evaluate if the wording of public health messages could increase popular support for COVID-19 vaccine mandates. We conducted a survey experiment on a sample ...
SouthDakota, etc ; agriculture; anthropology; capital; cerrado; childhood; environment; farm labor; farmers; farms; soybeans; Brazil; Show all 12 Subjects
Abstract:
... North American farmers manage massive soy farms in the Brazilian Cerrado from the clean offices off the dusty streets of Luis Eduardo Magalhães, Brazil. As they delegate field work to farmworkers, they focus on paperwork, managing investment capital, and satisfying the investors that control that capital. This comparative ethnographic article considers the agrarian values and farm life of the auth ...
... Aquatic insects undergo substantial shifts in their ecology during development, such as changing from a benthic consumer stage (e.g., larva) to a pelagic non-consumer stage (e.g., non-feeding pupae). Fish may differentially target these life-stages during predation, but the prevalence of this feeding is largely unknown. To determine how stage-specific feeding varies among fish species, we sampled ...
SouthDakota, etc ; arsenic; biomarkers; cardiovascular diseases; cohort studies; environment; metabolism; mortality; public health; urine; Arizona; Oklahoma; Show all 12 Subjects
Abstract:
... The effect of low-moderate levels of arsenic exposure and of arsenic metabolism on mortality remains uncertain. We used data from a prospective cohort study in 3600 men and women aged 45 to 75 years living in Arizona, Oklahoma, and North and South Dakota. The biomarker of inorganic arsenic exposure was the sum of urine inorganic (iAs), monomethylated (MMA) and dimethylated (DMA) arsenic compounds ...
SouthDakota, etc ; Perca flavescens; administrative management; adulthood; data collection; fish; fisheries; gillnets; juveniles; larvae; life history; Show all 11 Subjects
Abstract:
... We used a long‐term data set (2000–2016) of larval, age‐0 (juvenile), and age‐2 Yellow Perch Perca flavescens catches from nine glacial lakes in eastern South Dakota to track multiple cohorts through time to determine whether year‐class strength (measured as gill‐net CPUE of age‐2 fish) could be indexed at the larval or juvenile stage. We observed a strong relationship between larval and juvenile ...
SouthDakota, etc ; bioreactors; denitrification; environment; nitrate nitrogen; nitrogen; rain; subsurface drainage; temperature; water quality; wood chips; Show all 11 Subjects
Abstract:
... Edge-of-field practices such as denitrifying woodchip bioreactors can be used to improve the water quality of agricultural effluents. This study evaluated the effectiveness of four field-scale woodchip bioreactors in removing nitrate‑nitrogen (nitrate-N) from subsurface drainage in eastern South Dakota. Four woodchip bioreactors were installed and monitored between 2014 and 2016 near Arlington, Ba ...
SouthDakota, etc ; apiculture; biodiversity; ecological economics; grasslands; income; industry; land use change; market value; migratory behavior; politics; Show all 11 Subjects
Abstract:
... Although declines in grassland birds have been documented, national initiatives to conserve grasslands and their biota have fallen short in part because the non-market values of natural ecosystems and species are often not recognized in political decision making. Identifying shared, anthropogenic threats faced by market-valued and non-market-valued species may generate additional support for grass ...
SouthDakota, etc ; administrative management; data collection; energy conversion; neural networks; prediction; probability distribution; risk; uncertainty; wind power; wind speed; Show all 11 Subjects
Abstract:
... Clean and renewable wind energy has made an outstanding contribution to alleviating the energy crisis. However, the randomness and volatility of wind brings great risk to the integration of wind power to the grid. Therefore, it is essential to obtain reliable and efficient wind speed forecasts. Quantile-based machine learning techniques, which usually produce satisfied quantile-based prediction in ...
... Soybean gall midge, Resseliella maxima Gagné (Diptera: Cecidomyiidae), is a newly identified pest confirmed on soybean, Glycine max (L.) Merr. (Fabales: Fabaceae). To date, soybean gall midge has been found in Nebraska, Iowa, South Dakota, Minnesota, and Missouri, and has caused severe economic loss to commercial fields since 2018. Much is still unknown about this pest, so research efforts have be ...
SouthDakota, etc ; USDA; algorithms; cropland; environmental assessment; food security; normalized difference vegetation index; precision agriculture; reflectance; spatial data; time series analysis; California; Show all 12 Subjects
Abstract:
... The 30 m resolution U.S. Department of Agriculture (USDA) crop data layer (CDL) is a widely used crop type map for agricultural management and assessment, environmental impact assessment, and food security. A finer resolution crop type map can potentially reduce errors related to crop area estimation, field size characterization, and precision agriculture activities that requires crop growth infor ...
... Localized hypoxia can reduce available habitat, restrict movement and limit the abundance of aquatic invertebrates. Although cultural eutrophication, coupled with the effects of climate change, is likely to increase the frequency and extent of hypoxia in aquatic ecosystems, little is known about how oxygen gradients in small reservoirs influence spatial distribution and abundance of aquatic invert ...
SouthDakota, etc ; Fusarium graminearum; Fusarium head blight; additive effect; cultivars; fungi; genes; genome-wide association study; genomics; germplasm; landraces; marker-assisted selection; winter wheat; Show all 13 Subjects
Abstract:
... Fusarium head blight (FHB), caused by the fungus Fusarium graminearum is an important disease of wheat that causes severe yield losses along with serious quality concerns. Incorporating the host resistance from either wild relatives, landraces, or exotic materials remain challenging and has limited success. Therefore, a better understanding of the genetic basis of native FHB resistance in hard win ...
SouthDakota, etc ; Hesperiidae; new subspecies; Nebraska; Show all 4 Subjects
Abstract:
... A new subspecies of Lon taxiles (W. H. Edwards, 1861) is described from the Pine Ridge of Nebraska and Black Hills of South Dakota. It is distinguished by the presence of distinct white spots on the VHW of females and darker males than specimens from other parts of its range. ...
SouthDakota, etc ; Phasianus colchicus; adults; cropland; females; land use; landscapes; mortality; overwintering; pheasants; population growth; predation; risk; risk reduction; vegetation; wetlands; wildlife management; Prairie Pothole region; Show all 18 Subjects
Abstract:
... We examined survival of ring‐necked pheasants (Phasianus colchicus) occupying fragmented landscapes within the Prairie Pothole Region in South Dakota, USA, where severe winter weather events historically limited pheasant population growth through increased mortality. Recent landscape transformations could further affect overwinter adult female survival by reducing critical winter resources. Assess ...
SouthDakota, etc ; highlands; museums; skunks; Florida; Texas; Show all 6 Subjects
Abstract:
... Evidence suggests the range of Spilogale putorius (Eastern Spotted Skunk) has contracted and its abundance has declined in the past 70 years, leading to conservation concerns. We summarized county records of Eastern Spotted Skunks collected during 2000–2020 to determine the current range and relative abundance of the species. We accumulated 1174 records from 257 counties across its historic range ...
SouthDakota, etc ; automation; public lands; spatial data; surveys; Show all 5 Subjects
Abstract:
... The General Allotment Act of 1887, also known as the Dawes Act, established the legal basis for the United States government to break up remaining tribally-owned reservation lands in the U.S. by allotting individual parcels to tribal members and selling the remaining “surplus.” This research explores the processes involved in mapping these historical allotments and describes a method to automatica ...
Edem Avemegah; Wei Gu; Abdelrahim Abulbasher; Kristen Koci; Ayorinde Ogunyiola; Joyce Eduful; Shuang Li; Kylie Barington; Tong Wang; Deepthi Kolady; Lora Perkins; A. Joshua Leffler; Péter Kovács; Jason D. Clark; David E. Clay; Jessica D. Ulrich-Schad
SouthDakota, etc ; e-mail; environmental sustainability; outreach; surveys; Show all 5 Subjects
Abstract:
... To improve the economic and environmental sustainability of agriculture, information is needed on how to target research, teaching, and outreach programs. However, conducting survey research in general, and with agricultural producers specifically, is increasingly challenging given issues such as declining response rates and limited resources. While studies examining the best practices for promoti ...
... Aphanomyces euteiches causes Aphanomyces root rot (ARR) in alfalfa (Medicago sativa), along with root rot on many other legumes, including pea, clover, and lentil (Malvick et al. 2009). In 2020, South Dakota (SD) planted the most acres of alfalfa in the United States, which demonstrates the importance of alfalfa to the state. Several SD growers reported alfalfa establishment problems likely to be ...
SouthDakota, etc ; aquifers; equations; head; laminar flow; models; research; water; Show all 8 Subjects
Abstract:
... This study proposes a new analytical slug test model describing confined flow considering the effects of the formation damage and non‐Darcy flow near the wellbore. The former, primarily caused by drilling fluid invasion, introduces an extra wellbore head loss near the well screen. The latter, mainly resulting from the relatively high‐velocity flow across the gravel‐pack screen, adopts the Forchhei ...