Rangelands, Volume 40, Number 1 (2018)
ABOUT THE COLLECTIONS
Welcome to the Rangelands archives. The archives provide public access, in a "rolling window" agreement with the Society for Range Management, to Rangelands (1979-present) from v.1 up to two years from the present year.
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The Utility of Animal Behavior Studies in Natural Resource ManagementAlthough research on the behavior of individual animals has been growing in recent years, the role that individual variation among animals may play in the outcome of species interactions in nature may be somewhat overlooked in natural resource management. Recognizing potential implications of individual behavioral variation can aid in developing more cost-effective and sustainable management techniques. Four illustrative examples are provided. Livestock foraging behaviors are important to understand, as they affect an animal''s ability to locate and identify forage with nutritional qualities required for optimal growth. Studying the behavior of individual animals can help livestock producers anticipate and influence livestock grazing patterns to increase efficiency and productivity. Sage-grouse populations have declined dramatically in many areas, and managers are required to consider their needs in all management decisions where the species persists. Sage-grouse exhibit complex mating, nesting, and migratory behaviors that are important to recognize for management to be successful. Mountain lions were generally assumed to prey mainly upon mule deer, but recent studies have found that individual lions may specialize on alternate prey such as feral horses or bighorn sheep. The Bureau of Land Management spends millions of dollars each year to manage feral horse populations. Revelations surrounding prey switching in individual mountain lions may support management goals in which feral horse predation is occurring but may hinder bighorn sheep translocation efforts by wildlife managers. Many plants important to land managers, including grasses, shrubs, and trees, are dispersed by granivorous rodents that store seeds in scattered caches, and a growing body of literature reveals that the majority of seedling recruitment for some of these species is attributable to scatter-hoarding by rodents. This relationship can be utilized for restoration applications, and variation in seed preferences among individual animals may be valuable in this regard. © 2017
Application of Vulnerability Assessment to a Grazed Rangeland: Toward an Integrated Conceptual FrameworkRangeland vulnerability assessments have the potential to function as conceptual tools for policymakers and rangeland users to ensure the sustainable management of vulnerable rangelands. This contribution reviews the different approaches to conceptualizing vulnerability assessments in order to introduce an initial framework for how to construct rangeland vulnerability assessments. We present a conceptual framework for designing a rangeland vulnerability assessment that captures a suite of both socioeconomic and biophysical variables. This framework also facilitates the incorporation of the local knowledge of rangeland experts and users for further refinement of a rangeland vulnerability assessment applied in a specific locale. © 2017 The Society for Range Management
Estimation of the Requirement for Water and Ecosystem Benefits of Cow-Calf Production on California RangelandBeef production is perceived as using large amounts of water, and some studies recommend decreasing or ceasing meat consumption to decrease water use. Water footprints include different types of water, including green water (i.e., precipitation used for plant growth), blue water (i.e., drinking water and irrigation water used to grow alfalfa and irrigated pasture), and grey water (i.e., freshwater required for integrating water pollutants to a level accepted by water quality standards). A static model depicting blue and green water use for cow-calf production on California rangeland was developed. In this study, green water, which is sourced from rainfall and not available for another use, contributed the largest component to the total water footprint of cow-calf production at each location. It is important to consider the water use associated with beef production in the context of ecosystem services cattle provide to rangelands, such as preventing grassland conversion to shrub lands or woodlands, and the role that grazing cattle play in management of rangeland. © 2017 The Society for Range Management
Upland Bare Ground and Riparian Vegetative Cover Under Strategic Grazing Management, Continuous Stocking, and Multiyear Rest in New Mexico Mid-grass PrairieWe compared land cover attributes on rangeland pastures with strategically managed ranches (SGM), continuously stocked (CS), and rested pastures. SGM pastures had less upland bare ground and more riparian vegetative cover than adjoining CS pastures, and SGM pastures had bare ground cover comparable to pastures rested from grazing for three or more years. Differences in riparian cover between management types were greatest in years of near-average precipitation and lower in years of high precipitation or drought. Remote sensing technology provided a means of quantifying range condition and comparing management effectiveness on large landscapes in a constantly changing environment. © 2017 The Author(s)