Resources In Areas Research Articles

Primary care physician density and mortality in the United States

BackgroundGeographic physician availability differences are associated with healthcare outcomes. However, the association between primary care physician (PCP) density and mortality outcomes is less well-established. MethodsThe study analyzed 2019 county-level nonfederal PCP data from the Health Resources and Services Administration Area Health Resource File and mortality data using the CDC WONDER (Wide-ranging Online Data for Epidemiologic Research). All-cause and cardiovascular disease (CVD)- related age-adjusted mortality rates (AAMR) per 100,000 population stratified by the number of PCPs per 100,000 quartiles were extracted. Using AAMRs as continuous variables, linear regression was performed to determine the association of AAMRs with PCPs per 100,000 (reference, first quartile), adjusting for the social vulnerability index (SVI). ResultsA total of 3142 counties were included in the analysis. Among counties stratified by PCPs per 100,000 quartiles, all-cause AAMRs were 828 (95% CI, 824-832) in the first quartile, 798 (95% CI, 796-801) in the second quartile, 737 (95% CI, 735-739) in the third quartile, and 679 (95% CI, 678-680) in the fourth quartile. Similar trends were seen in CVD-related AAMRs, which were 446 (95% CI, 443-449),439(95% CI, 437-441), 403 (95% CI, 402-404), and 365 (95% CI, 364-366), respectively. Counties without PCP (221, included in first quartile) had all-cause and CVD-related AAMR of 797 (95%CI, 783-812) and 430 (95%CI, 419-440), respectively. Compared with the first quartile, SVI-adjusted analyses showed β-coefficient (95%CI) of all-cause mortality for the second, third, and fourth quartiles of -4.11 (95% CI, -18.31, 10.08), -35.37 (95% CI, -49.57, -21.17) and -85.79 (95% CI, -100.10, -71.48). Similar results were observed for CVD-related AAMR. ConclusionHigher PCP per 100,000 is generally associated with better all-cause and CVD-associated mortality outcomes, however complex factors likely play a role in determining these outcomes in counties with lower PCP per 100,000, which warrant further investigation.

Challenges of Artificial Intelligence in Human Resource Management of an Organisation

Artificial Intelligence is a technology that enables and prepares the machines to think, grasp, and accomplishing the tasks which are previously carried out by humans. AI has been grown aggressively and exponentially in the past decade. Artificial intelligence is assisting IT companies for making better and faster decisions. This applies to the area of human resources as much as anything else. HR recruiters have carried out Artificial Intelligence software to expedite in recruitment process and create more competence in the overall selection process. The objective of this paper is to assess Artificial Intelligence in Human Resources Management. (HRM) and highlighted the challenges of artificial intelligence in Human Resources Management. Artificial intelligence helps in contributing multiple solutions for hiring managers including basic recruiting tools, intermediate applications and advanced AI solutions. These tools are generating the most efficient way for human resources to predict a candidate’s future success with their company. Artificial Intelligence (AI) is metamorphosing the human resources field altogether. The current study would scatter some light on the breakthroughs of Artificial Intelligence and their implications with respect to HRM.

Research and Analysis on Regional Heterogeneity of Educational Development Level and Economic Growth

China's rapid economic development over the past 40 years has improved the overall quality of life of the population but has also brought about uneven distribution of resources. The problem of educational inequality under the conditions of uneven distribution of economic development is one of the main problems that China needs to solve. Solving the problem of educational inequality plays a positive role in social fairness, justice, and long-term stability. Based on the above background, this paper focuses on the development of education policies in recent decades, the gains and losses of education poverty alleviation, the causes of the "involutionary" competition in urban education, and the effectiveness of relevant policies. It is recommended to improve the allocation of educational resources further and invest appropriate resources in the construction of vocational and technical schools to match the current development vision of China's economy. This paper suggests that students from poor areas be allowed to study in economically developed areas to improve educational resources in poor areas in the short term. This paper also calls on the government to establish a long-term mechanism to promote the growth of the education industry and promote a positive cycle of educational development and economic development.

The Impact of Urban and Rural Education Gap on Student Achievement Differences

With our country’s social development, the gap between urban and rural education has become increasingly obvious, especially the difference in student achievement. This study aims to explore the impact of the urban-rural education gap on student achievement. The study adopts a quantitative analysis method to collect and analyze the academic performance, learning resources, and social resources of urban and rural students. The results show that the unbalanced distribution of educational resources in urban and rural areas is the key factor leading to the gap in students’ achievement. For example, urban education resources are abundant while rural education resources are relatively scarce. At the same time, the difference in social environment and family economic status also have a significant impact on student achievement. The differences between urban and rural areas, particularly in terms of family economic conditions and their ability to invest in education, further widen the gap between urban and rural education. The results of this study can provide a reference for reducing the gap between urban and rural education and improving the academic performance of rural students. A fair education policy is essential to narrow the gap between urban and rural education resources distribution, so as to improve the equality of education in society.

Optimization of an Urban Microgreen Space Distribution Based on the PS-ACO Algorithm: A Case Study of Shenyang, China

In this study, optimization of the microgreen space distribution through multistage regulation is investigated, with the goal of alleviating the imbalance between the supply and demand of green resources in the central urban area of Shenyang. An optimized evaluation model of green space supply and demand is employed to calculate the green space accessibility index at a 100-m grid scale and identify different levels of green space resource supply and demand. Priority is given to supplementing resources for the elderly population by balancing the green space supply in vulnerable areas. Particle swarm—ant colony optimization (PS-ACO) is used to select microgreen space sites within each priority level. On the basis of the “important-urgent” quadrant analysis, S1-priority residential areas account for 8.12% of the grid, S2-priority areas account for 67.01%, and S3-priority areas account for 24.87%. The PS-ACO algorithm outputs potential microgreen space sites within each priority level to accurately regulate the green space distribution in residential areas with different supply pressures and limited land availability. A spatial correlation analysis of the new sites reveals good spatial dispersion within service units, effectively alleviating demand pressures, and good aggregation at a regional scale to address imbalances in the supply of green space in a targeted manner. Thus, the optimized results of the PS-ACO algorithm are effective, providing reliable site-selection references for subsequent urban microgreen space distributions.

Kazakhstani village: the need for radical transformation

Purpose - the tendencies of development of rural areas of Kazakhstan are shown. Methods - economic analysis, statistical methods were used in analyzing the data on the number of rural population in dynamics, graphical - for structuring the information and its visual presentation. Results - the article outlines the current trends and prospects of rural settlements (RS) of the republic, considers demographic processes, economic factors, migration flows. Special attention is paid to the state support initiatives aimed at improving the living standards of rural residents. The authors highlight the stages of building up the resources of rural areas of the country in the context of the implementation of state programs, each of which has specific goals and objectives aimed at improving the lives of rural residents, reducing their outflow from rural to urban areas caused by limited employment opportunities, low standard of living, insufficient access to quality services: education, health care. It is noted that in 20 regions of Kazakhstan adapted and implemented the program "One Village - One Product" (OVOP), focused on the production of the most promising products with high market potential, the creation of sustainable value chains of agricultural products for agricultural enterprises and farmers, promoting saturation of the domestic market with high-quality competitive food products. Conclusions - solving the problems of strengthening rural areas is in direct dependence on the effective policy of the state in the sphere of agro-industrial complex. Currently, emphasis is placed on the future of the Kazakhstani village, its modern infrastructure. Organizational, managerial and economic approaches, digitalization in agriculture allows to accelerate the pace of integrated socio-economic development of RS, increase the income of the rural population, stabilize the demographic situation and increase the investment attractiveness of territories.

A Study on Offshore Anchor Selection with a Focus on Torpedo Anchor Stability and Performance

The global pursuit of renewable energy has significantly accelerated offshore wind energy development. Floating offshore wind turbines (FOWTs) are increasingly in the spotlight as they offer superior capabilities for harnessing abundant wind resources in deep-water areas, outperforming traditional fixed-bottom turbines. The deployment and station-keeping of these floating structures are critically dependent on robust mooring systems and the precise selection of anchoring solutions. This paper provides an overview of various anchors, including driven and suction caissons, torpedo, and drag anchors, and their applications in real-world projects. These commonly used anchors were discussed in relation to mooring types, soil conditions, and expected bearing capacities. Torpedo anchor installation failures have been reported in cases where excessive tilt angles occur during deployment. This motivates us to present an in-depth study on the importance of directional stability during installation of torpedo anchors. The study will utilize computational fluid dynamics Star-CCM+ 2402 to analyze and assess the impact of the center of gravity configuration on stabilization. Additionally, theoretical formulas will be used to estimate the holding capacity that the torpedo anchor can provide. These insights are designed to assist wind energy developers in making informed and effective anchoring decisions for floating wind turbine projects.

Some aspects of zoning of agricultural land in Kyzylorda region of the Republic of Kazakhstan

Currently, the mechanism of territory zoning is one of the main criteria for preserving the productive potential of agricultural land. Reduction of fertile lands, increase in the number of degraded areas as a result of negative desertification processes, decrease in the efficiency of agricultural lands, their conversion into reserve lands, indicates the irrationality of the existing directions and technologies of territorial division of lands by purpose, underutilization of production possibilities. For example, in 1991 the size of land use was 218.3 million hectares, in 2022 land plots are used by 50% (115.9 million hectares). Purpose - to study theoretical and methodological approaches to the planning of agricultural land and rural settlements (RS), taking into account economically balanced development and transparent spatial distribution. Methods - analysis and synthesis, with the help of which the cause-and-effect relations of functional and natural-economic zoning were determined; statistical method allowed to analyze the factors of involvement of agricultural land by categories and information-statistical data on Kyzylorda region. Results - the problems of establishing functional zones for the purpose of regulating the agricultural land market were revealed, socially oriented indicators of land ranking on the basis of land registration materials were outlined, existing systems of land use management were shown. Conclusions - zoning of lands intended for agricultural production in the RS is carried out in order to determine the boundaries of assessment zones and correction factors to the basic rates of payment for land plots, and is also necessary as a tool for regularization of land resources of built-up areas. A necessary condition for ecologically acceptable agricultural nature management is compliance with a set of agrotechnical practices and measures.

The Coupling Coordination Degree and Its Driving Factors for Water–Energy–Food Resources in the Yellow River Irrigation Area of Shandong Province

Water resources, energy, and food are essential for the development of society, and they are strongly interdependent. The coupling and coordination relationships of the water–energy–food (WEF) system are important for regional resource security and high-quality development. The Yellow River Irrigation Area in Shandong Province, China, is a grain production base and has a substantial impact on national food security. To examine the water, energy, and food subsystem dynamics in this area, an evaluation system for the WEF system was established. A comprehensive weighting method based on game theory was employed to determine index weights. TOPSIS was used to assess the development level of the WEF system. A coupling coordination degree model was used to analyze the evolution of the coupling coordination degree of the WEF system from 2000 to 2020, and a GWR model was constructed to explore the spatial heterogeneity of its driving factors. The findings indicated that the development level of the WEF system in the study area was moderate, with a gradual upward trend. The coupling coordination degree fluctuated between 0.62 and 0.739. The GWR model revealed that temperature had an overall negative effect on the coupling coordination degree, with the greatest impact on the central irrigation area; the slope and NDVI had a negative effect, with increasing intensity from the southwest to the northeast; and rainfall had an overall positive effect, with the greatest impact on the irrigation area near the estuary in the northeast. Overall, the building area ratio had a negative effect on the coupling coordination degree, with exceptions in some areas. These research outcomes provide theoretical support for sustainable agricultural development in the Yellow River irrigation areas of Shandong Province and methodological reference data for studying collaborative resource utilization in irrigation regions.

Impact of precipitation change in the Yangtze River source area on groundwater from the perspective of ground-based and satellite-based observations

In the context of global climate change, the hydrological cycle of the Yangtze River source area has produced significant changes. It is of great practical value to study the influence of regional precipitation changes and precipitation events on regional water resources, especially groundwater. This study uses base flow segmentation and GRACE groundwater reserve calculation technology to examine precipitation’s spatial and temporal variation, especially extreme precipitation events, in the Yangtze River source area. The events analyzed were the extreme precipitation-runoff-base flow response from the Yangtze River source, the extreme precipitation-terrestrial water (surface water and groundwater) response, and the comparison of these events. The findings indicated that extremely strong precipitation, maximum precipitation for five consecutive days, days of moderate rain and above moderate rain intensity precipitation, the longest number of precipitation days, and other extreme precipitation indices had a significantly increasing trend and increased intensity of extreme precipitation events, the regional differences in precipitation trended less significantly. The base flow index gradually increased at a rate of 0.0014 yr-1, suggesting the overall increase of water resources and the contribution rate of groundwater to the runoff was an increased trend . There is a high correlation between the change of water resources in the source area and the change of precipitation, and the increased precipitation influenced an increase in groundwater and regional water resources. These findings inform current knowledge of precipitation-groundwater response mechanisms in alpine and arid regions such as the Qinghai-Tibet Plateau.

Research on the Relationship between Urban and Rural Educational Resources Allocation and Educational Equity

This comprehensive study delves deeply into the relationship between the allocation of educational resources in urban and rural areas and educational equity. It takes the unbalanced distribution of educational resources between urban and rural regions as its starting point and employs quantitative analysis and field research methods to explore this complex relationship. The findings reveal that the uneven allocation of educational resources has a significant negative impact on educational equity, resulting in a substantial disparity between urban and rural students in terms of access to high-quality education. Policy attention deviation, an imperfect management mechanism, and insufficient investment in education are identified as the key reasons for this unbalanced allocation. Consequently, this study recommends that policymakers increase investment in rural education, reform the management mechanism, and optimize resource allocation to promote the realization of educational equity. The results of this research hold great significance for understanding the unequal distribution of urban and rural educational resources and providing valuable references for policymaking.

The behavior evolution and case simulation of water rights trading in water transfer projects

ABSTRACT Due to the difference in the economic and social development level of each area of the water transfer project, there will be a lack of water resources in some areas, while water resources in some other areas have a surplus, resulting in the imbalance of water resources. However, the transaction willingness of both parties is not strong, and the seller has the psychology of “reluctant to sell”. The buyer hopes to make free water allocation through the government. The paper analyzes the feasibility and influence of solving the imbalance of water resources in water transfer projects through the market mechanism by the evolutionary game approach. The water right transaction between Zhengzhou and Nanyang in the middle route of the South-to-North Water Transfer Project is taken as a case for simulation. The study shows t: the lower the marginal return of the water resources in the water-rich area is, the higher the water-scarce area is, the easier to promote water rights trading; the higher the environmental and social benefits for both parties are, the easier the water rights trading; the lower the transaction cost of both parties is, the easier the water rights trading.

Effects of groundwater level changes on soil characteristics and vegetation response in arid and semiarid coal mining areas.

Coal mining in arid and semiarid regions often leads to numerous ecological and environmental problems, such as aquifer depletion, lake shrinkage, vegetation degradation, and surface desertification. The drainage from coal mining activities is a major driving force in the evolution of the groundwater-soil-vegetation system. In order to explore the effect of groundwater level fluctuation on soil properties and the response mechanism of surface vegetation in coal mining areas, this study is based on hydrogeological and ecological vegetation investigations in the Bojianghaizi Basin, and soil and vegetation samples are collected in the areas with different groundwater levels, and soil and vegetation indexes are analyzed with the aid of methods such as numerical statistics, linear regression, and correlation analysis with the aid of the Origin software. The results show that there is a significant negative correlation between groundwater table (GWT) and soil water content (SWC), soil conductivity, soil organic matter (SOM), soil available nitrogen (SAN), and soil available potassium (SAK). Mining activities have led to the destruction of the soil structure, greatly reducing its ability to retain water and fertilizer. The contents of SWC, SOM, and SAN in the mining area are significantly reduced, which are at least 49.73%, 47.56% and 59.90% lower than those around the mining area. On the northern and southern sides of the lake, serious soil salinization exists in the lakeshore zone where the depth to the water table is <0.5m, and the water required for the growth of vegetation here mainly comes from the groundwater, so there are only a few water-loving and saline-resistant plants; when the depth to the water table is 0.5-7m, the growth of surface vegetation is influenced by the double impacts of the water table and atmospheric precipitation with a high degree of species richness; when the depth to the water table is >7m, the surface vegetation is only dependent on the limited atmospheric precipitation for water. When the depth of groundwater is >7m, the surface vegetation only relies on limited atmospheric precipitation for water, and drought-tolerant plants mainly grow in these areas. This study not only provides a scientific basis for the sustainable development and environmental protection of similar mines in the world, but also has important significance in guiding the ecological management and rational utilization of water resources in coal mine areas. What is more, This study provides valuable insights into sustainable water resource management in arid and semi-arid regions, crucial for mitigating the ecological impacts of coal mining activities.

The Frasnian stage of the Upper Devonian in Nakhichevan Autonomous Republic (Southern Transcaucasia)

Marine carbonate-terrigenous deposits of the Lower (partially), Middle, and Upper Devonian, rich in coral-brachiopod and other fauna, are widespread across the territory of the Nakhichevan Autonomous Republic. Various ore and non-metallic minerals are associated with these deposits: the Gyumushlug and Yaydzhinsky polymetallic deposits, etc. Further ex-pansion of the mineral resources of the study area, as well as the challenges associated with the establishment of large-scale geological mapping in this region, make the development of a detailed stratigraphic scheme crucial. An indispensable condition for the creation of such a scheme is the study of the most characteristic groups of ancient organisms, among which brachiopods play a dominant role in the organic world. Devonian deposits in the Southern Transcaucasus are distributed over a limited area – in the western part of the Na- khchivan Autonomous Republic – but they are widespread here and are represented by all three well-characterized faunal divisions. For the first time, a diagram has been compiled, reflecting the sequence of appearance and distribution over time of Devonian brachiopods. On this basis, a scheme for the zonal division of the Devonian deposits in the region has been developed, identifying 20 biostratigraphic zones and 16 stratigraphic units (formations). This study summarizes the scattered information contained in various sources on the paleontology and stratigraphy of the Devonian period in the region. The identified brachiopod zones are linked to standard conodont zones. The great importance of brachiopods is determined by the fact that they are one of the most effective groups of fauna not only for dating sediments in natural outcrops, but they also provide good results for broad interregional correlations. Based on the macrofaunal complex, the Frasnian age of the sediments within the formation in question is firmly established. A detailed biostratigraphic scheme with zonal division of the Devonian deposits of Transcaucasia was developed, based on the most important stages in the development of the brachiopod fauna. Biostratigraphic zones, formations, and subformations identified in the Devonian deposits of the Nakhchivan Autonomous Republic and adjacent areas, based on the study of the entire complex of organic remains, mainly brachiopods and cono- donts, can be compared with corresponding deposits of typical sections of Western Europe (Ardennes and Eifel Mountains) and many regions of Eurasia. The obtained data are of practical importance for theoretical geologists, prospectors and developers.

Balancing Economic Growth, Carbon Emissions, and Sequestration: A Multi-Objective Spatial Optimization in Zhengzhou Metropolitan Area in China

As China’s “Dual Carbon” strategy is implemented and the new urbanization advances, balancing economic development, emission reduction, and carbon sequestration has become an important issue during the growth of emerging metropolitan areas, and it is also important for achieving high-quality urban development. Therefore, this study had three major objective functions: economic growth, carbon emission reduction, and increased carbon storage. The multi-objective land use quantity structure was solved using the Non-dominated Sorting Genetic Algorithm II (NSGA-II), and the best solution in the solution set was introduced using the Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) for evaluation. Finally, combined with the Future Land Use Simulation (FLUS) model, the low-carbon evolution of the metropolitan area was predicted on a spatial scale. The trade-off plan results show that by 2035, the economic benefits will reach CNY 7.65 trillion, carbon emissions will be kept under 99.24 million tons, and carbon storage will steadily increase by 15.2 million tons. Therefore, optimizing land use from the perspective of balancing carbon emissions, carbon sequestration, and economic development can provide valuable references for planning low-carbon development and the rational use of spatial resources in future metropolitan areas.

Land Use Change and its Impact on Terrestrial Biodiversity of Surrounding Areas of Jim Corbett National Park

Located at the Shivalik Himalayas' foothills, near the worldwide popular hill-station of Nainital, the beautiful park is famous for being home to a huge number of Bengal tigers, the highest among any Indian national park. So many other mammals, including tigers, leopards and elephants (wild), roam in this park. On the edge of the Western Ramganga Reservoir, the Sonanadi zone is habitat to elephants and leopards, along with more than hundreds of species of fowl. Also CNP is a prime protected area of Uttarakhand forest as it provides ecological viable, profitable and sources of different income for local people. Dense forest cover is one among the most natural resources for every animal (Including human) directly and indirectly. But rapid excessive exploitations of the different vegetation, woods, shrubs species for human development here are now under the threat of biodiversity loss and uncovering forests. Present study focused on significance of terrestrial biodiversity, reason of land use changes and threats to terrestrial biodiversity (TB) because of land use change, terrestrial biodiversity of the local area is influencing by various ways. For continuous use of the forest ecosystems, it is very important to find the land use land covers changes and its negative impacts on biodiversity and surrounding environment. Forest resources are the full of vital material, base of direct and indirect human’s continuous progress and it needs to monitor the status and change of forest resources timely for logical exploitation of forests and its renewal. Present study focused on monitoring the changes in the forest areas, surrounding barren land, build-up area and natural resources.

Peer Review of “Viability of Mobile Forms for Population Health Surveys in Low Resource Areas (Preprint)”

Peer Review of “Viability of Mobile Forms for Population Health Surveys in Low Resource Areas (Preprint)”

Increased food crop diversification and gathering of wild plants associated with women's dietary diversity in Chad.

Women of reproductive age are particularly vulnerable to low-quality diets due to their higher micronutrients needs. The minimum dietary diversity for women (MDDW) is a proxy for micronutrient adequacy in this group of women. Its relationship with other aspects that lead to malnutrition is not fully elucidated and depends on the context. In this study, we assessed the prevalence of MDDW among women of a rural area in Chad and its association with socioeconomical, agricultural, dietary and food security data. A cross-sectional study was conducted. Following a multistage cluster sampling, 984 women of reproductive age were randomly selected and interviewed in March 2019. We obtained food consumption data through unquantified 24 h recalls and computed MDDW as consuming at least five out of 10 predefined food groups. We constructed a Food Production Diversity Score (FPDS) with crop and livestock information. We obtained multivariable logistic regression models including different covariates. MDDW was achieved by only 33% of women in the sample. In our final model, we identified a significant association of MDDW with the FPDS and gathering ofwild plants. Women in households with the highest FPDS had 70% more chances of achieving MDDW than those with the lowest FPDS. Gathering wild plants doubled these chances. Areas of cultivated land,Water, Sanitation and Hygiene resources, and a high level of food security, measured with the Household Food Insecurity Access Scale,were also significantly related to the achievement of MDDW. This illustrates the importance of nutrition-sensitive policies, also considering biodiversity and food production diversification.

Applying the water quality indices and geographic information system approach to assessing the suitability of groundwater quality for drinking and irrigation purposes in the semi-arid region of Tebessa-Ain Chabro, Northeastern Algeria

Assessing the groundwater quality is important for the efficient exploitation of water resources in semi-arid areas. The study area in northeast Algeria mostly depends on groundwater as its main source of water, and the quality of groundwater is becoming important due to the increasing need for freshwater. The hydrochemical characteristics and water quality of groundwater in the Tebessa-Ain Chabro were assessed using water quality indices, geochemical modeling, and multivariate statistical approaches. The study discovered that the groundwater samples could be classified into four distinct water groups using hierarchical cluster analysis in Q mode (HCA) based on their electrical conductivity. We identified three forms of water: mixed (Ca2+–Mg2+–Cl−), Na+–K+–HCO3−, and Ca2+–Cl−. According to the water quality assessment, only 38% of the samples were deemed suitable for human consumption, while 34% were categorized as poor water, 10% as extremely poor, and 17% as unsafe for drinking. The irrigation water quality index identified four classifications: low, moderate, high, and severe restriction, with corresponding percentages of 31%, 31%, 7%, and 31%. The nitrate pollution index (NPI) showed that 48% of samples fell into the moderate pollution class. Human activity, such as sewage infiltration and waste disposal in open areas, was the cause of this nitrate contamination. The saturation index values showed that groundwater was less saturated in halite and sylvite and more saturated in aragonite, calcite, dolomite, anhydrite, gypsum, and hydroxyapatite. The Tebessa region’s groundwater’s hydrochemical properties and water quality have been assessed using multivariate statistical techniques, geochemical modeling, and water quality indexes. The study’s conclusions can provide a foundation for upcoming research evaluating the region’s groundwater quality.

PSXIII-8 Determining the effects of selenium content of high-selenium forages on weight gain in growing lambs

Abstract High selenium (Se) forages grow on seleniferous soils in many parts of the world and upon Se-contaminated rangelands such as in the Western Phosphate Resource Area in the western United States. When consumed in large enough amounts or for extended durations, animals can be poisoned, developing acute or chronic selenosis. Naïve livestock will indiscriminately consume forage with increased concentrations of Se if available. However, most animals upon ingesting a sublethal Se dose will become averted to Se-rich plants and select forages with decreased Se concentrations. The purpose of this study was to determine Se concentrations in feed that cause reduced feed intake and decreased body weight (BW) gain in growing lambs (6 to 8 mo of age). Lambs (n = 5) were randomly divided into four groups and were fed a control pellet (&amp;lt; 1 ppm Se) at 1.5% of their BW and had free choice to a custom Se alfalfa pellet containing &amp;lt; 1 (control), 10, 20, or 40 ppm Se for 8 wk. During the 8 wk period the lambs gained 32.9 ± 4.1, 27.8 ± 1.8, 18.9 ± 9.2, and 7.4 ± 2.8% (mean ±SD) of their initial BW in the &amp;lt; 1 (control), 10, 20, or 40 ppm Se groups, respectively. After the 8 wk were completed, the lambs were fed only the custom Se alfalfa pellets, with &amp;lt; 1 (control), 10, 20, or 40 ppm Se, free choice for four additional weeks. As Se concentration in the pellets fed increased, the feed intake and BW gains significantly decreased. Lambs in the control and 10 ppm Se groups ate approximately 2-fold more than the lambs in the 40 ppm Se group, which lost over 3% of their initial BW. Understanding the concentration of Se in forages and how it affects appetite and BW gain allows range managers to better manage seleniferous or Se-contaminated ranges to safely use sheep on these types of rangelands. Additional work is needed to better understand the management of other livestock species grazing on high Se-containing ranges and pastures.