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pinyon-juniper, etc ; Meliaceae; Odocoileus hemionus; adults; females; forbs; grasslands; habitat conservation; habitats; home range; males; shrublands; woodlands; Mexico; New Mexico; Show all 15 Subjects
Abstract:
... Desert mule deer (Odocoileus hemionus eremicus) populations throughout the arid Southwestern USA and Mexico have declined; hence, it is important to identify habitats that provide for their requirements to inform habitat management. We used resource-area-dependence analysis (RADA), which relates home range size to composition of home ranges, to determine habitats most associated with decreasing ho ...
pinyon-juniper, etc ; broadcast seeding; environmental health; fire suppression; forests; fuel loading; highlands; historic sites; mastication; prescribed burning; risk; silt; soil; water erosion; wildfires; wind; woodlands; Utah; Show all 18 Subjects
Abstract:
... Fire suppression has increased fuel load and the risk of catastrophic wildfire in forest and woodland ecosystems across the Western United States. In an effort to reduce fuel load and restore historical structure and function, land managers have implemented fuel reduction treatments on millions of acres. Reducing fuel loads protects people, structures, and in some cases, improves ecosystem health. ...
pinyon-juniper, etc ; Juniperus; Pinus edulis; arid lands; biodiversity; climate; cost effectiveness; disturbed soils; econometrics; ecosystems; fire prevention; forage; forest ecology; hydrology; landscapes; livestock; risk; shrublands; shrubs; time series analysis; trees; wildlife; Western United States; Show all 23 Subjects
Abstract:
... In the intermountain western US, expansion of Pinyon (Pinus edulis) and Juniper (Juniperus spp.) woodlands (PJ) into grasslands and shrublands is a pervasive phenomenon, and an example of the global trend towards enhanced woody growth in drylands. Due to the perceived impacts of these expansions on ecosystem services related to biodiversity, hydrology, soil stability, fire prevention, and livestoc ...
pinyon-juniper, etc ; Gymnorhinus cyanocephalus; habitat conservation; habitat destruction; habitats; leaves; mortality; nesting sites; New Mexico; Show all 9 Subjects
Abstract:
... Pinyon jays (Gymnorhinus cyanocephalus) are experiencing range wide population declines primarily in response to habitat degradation. More studies examining pinyon jay nest site selection in pinyon-juniper woodlands would be helpful in determining potential habitat management prescriptions. Therefore, we conducted a nest site selection study in pinyon jay breeding habitat in central New Mexico. We ...
pinyon-juniper, etc ; Cyrtonyx montezumae; Quercus; canopy; habitat preferences; ornithology; regression analysis; woodlands; New Mexico; Show all 9 Subjects
Abstract:
... Literature describing the ecology of Montezuma Quail (Cyrtonyx montezumae) is severely lacking. Their unique foraging strategy allows observers to study their foraging habitat selection without capturing them. We located 37 foraging sites in the pinyon-juniper (Pinus-Juniperus) woodlands of Lincoln County, New Mexico, over 2 years and analyzed the data using logistic regression analysis. The mean ...
pinyon-juniper, etc ; Artemisia; birds; climate; climate change; drought; habitats; inventories; plateaus; risk; shrublands; surveys; temperature; water stress; Show all 14 Subjects
Abstract:
... Aridland breeding bird communities of the United States are among the most vulnerable to drought, with many species showing significant population declines associated with decreasing precipitation and increasing temperature. Individual breeding bird species have varied responses to drought which suggests complex responses to changes in water availability. Here, we evaluated the influence of water ...
... Since the late 1800s, pinyon–juniper woodland across the western U.S. has increased in density and areal extent and encroached into former grassland areas. The San Carlos Apache Tribe wants to gain qualitative and quantitative information on the historical conditions of their tribal woodlands to use as a baseline for restoration efforts. At the San Carlos Apache Reservation, in east-central Arizon ...
... Genetic variation in foundation tree species can strongly influence communities of trophic‐dependent organisms, such as herbivorous insects, pollinators, and mycorrhizal fungi. However, the extent and manner in which this variation results in unexpected interactions that reach trophic‐independent organisms remains poorly understood, even though these interactions are essential to understanding com ...
pinyon-juniper, etc ; Artemisia; Centrocercus urophasianus; basins; birds; conifers; data collection; ecoregions; geographical distribution; habitat destruction; habitats; land cover; wildlife; Western United States; Show all 14 Subjects
Abstract:
... The encroachment of pinyon-juniper woodlands into sagebrush habitat in the Great Basin Ecoregion of the western USA, represents a potential source of habitat degradation for sagebrush-associated wildlife species. To restore sagebrush habitat, managers are conducting large-scale conifer removal efforts within the Great Basin, particularly within Greater Sage-Grouse (Centrocercus urophasianus) prior ...
pinyon-juniper, etc ; Landsat; aboveground biomass; arid lands; canopy; carbon; case studies; data collection; environment; leaf area; lidar; models; remote sensing; uncertainty; variance; woodlands; Utah; Show all 17 Subjects
Abstract:
... Airborne laser scanning (ALS) data enable accurate modeling and mapping of aboveground biomass (AGB), but the limited spatial and temporal extents of ALS data collection limit the capacity for broad-scale carbon accounting. Conversely, while space-based remote sensing instruments provide increased spatial and temporal coverage, it can be difficult to directly link field-level vegetation biometrics ...
pinyon-juniper, etc ; Artemisia tridentata; Bromus tectorum; Juniperus; Pinus; climate change; ecology; forage production; land management; livestock; rangelands; risk; steppes; uncertainty; wildfires; wildlife; Intermountain West region; Show all 17 Subjects
Abstract:
... Ecologists have built numerous models to project how climate change will impact rangeland vegetation, but these projections of future changes are difficult to validate, making their utility for land management planning unclear. In the absence of direct validation, researchers can ask whether projections from different models are consistent. High consistency across models, especially those based on ...
pinyon-juniper, etc ; Pinus edulis; grasslands; root crown; woodlands; Fishlake National Forest; Utah; Show all 7 Subjects
Abstract:
... In this paper, we share data collected during implementation of a vegetation management project on the Fishlake National Forest in central Utah. This project—designed to remove encroaching pinyon and juniper trees from sage-steppe and grassland communities—has been ongoing since 2017. While cutting and lopping the targeted woodland species, Fishlake employees counted and measured both cut and leav ...
pinyon-juniper, etc ; agriculture; archaeology; climate; corn; environment; forests; sage; soil; soil formation; sustainable agriculture; Show all 11 Subjects
Abstract:
... This article draws together data from two of Crow Canyon Archaeological Center's recent research projects and combines these data in new ways to elucidate the relationship between Mesa Verde region soil development and non‐irrigation farming practices. The Pueblo Farming Project (PFP) seeks to preserve traditional farming knowledge and educate the public concerning traditional farming and the plac ...
pinyon-juniper, etc ; Bayesian theory; Chiroptera; Juniperus; Pinus; data collection; habitat destruction; habitat preferences; hibernation; land cover; landscapes; monitoring; probability; shrublands; summer; white-nose syndrome; wildlife management; winter; woodlands; Colorado; Show all 20 Subjects
Abstract:
... Numerous processes operating at landscape scales threaten bats (e.g., habitat loss, disease). Temperate bat species are rarely examined at commensurate scales because of logistical and modeling constraints. Recent modeling approaches now allow for presence‐only datasets, like those often available for bats, to assist with the development of predictive distribution models. We describe the use of pr ...
pinyon-juniper, etc ; Artemisia; Bayesian theory; Centrocercus urophasianus; Pinus; adults; basins; conifers; data collection; ecosystems; environmental impact; grouse; habitat conservation; juveniles; models; nests; population growth; shrubs; steppes; telemetry; threatened species; trees; woody plants; yearlings; North America; Show all 25 Subjects
Abstract:
... Woody plant expansion into shrub and grasslands is a global and vexing ecological problem. In the Great Basin of North America, the expansion of pinyon–juniper (Pinus spp.–Juniperus spp.) woodlands is threatening the sagebrush (Artemisia spp.) biome. The Greater Sage‐grouse (Centrocercus urophasianus; sage‐grouse), a sagebrush obligate species, is widespread in the Great Basin and considered an in ...
pinyon-juniper, etc ; Juniperus deppeana; Pinus cembroides; age determination; autocorrelation; ecological differentiation; forests; mountains; pioneer species; trees; woodlands; Texas; Show all 12 Subjects
Abstract:
... Piñon (Pinus spp. L.)–juniper (Juniperus spp. L.) woodlands’ historical stand structures were recreated to provide reference conditions and document long-term changes in the Sky Islands of the Davis Mountains, Texas. Restoration of these isolated woodlands requires insights into the range of variability in current and historical stand structures, as well as an understanding of the spatiotemporal e ...
pinyon-juniper, etc ; administrative management; available water capacity; fire suppression; forests; highlands; landscapes; rangelands; remote sensing; savannas; trees; woodlands; Colorado; Show all 13 Subjects
Abstract:
... Woodland and forest ecosystems across western North America have experienced increased density and expansion since the early 1900s, including in the widely distributed piñon-juniper vegetation type of the western United States. Fire suppression and grazing are often cited as the main drivers of these historic changes and have led to extensive tree-reduction treatments across the region. However, m ...
pinyon-juniper, etc ; environmental factors; fine roots; nitrogen; nutrient availability; phosphorus; soil profiles; subsurface soil layers; terrestrial ecosystems; trees; woodlands; Show all 11 Subjects
Abstract:
... Models of ecosystem development and response to environmental variation must incorporate change in vertical soil space as well as over time. Insufficient measurement of subsurface soil properties represents a major observational bias in ecosystem studies. We address these changes in horizontal (time) and vertical (soil profile) space along a three‐million‐year, semi‐arid, piñon‐juniper woodland su ...
pinyon-juniper, etc ; Artemisia; Centrocercus urophasianus; Juniperus; Pinus edulis; canopy; conifers; ecosystems; fauna; flora; ownership; rangelands; trees; wildfires; woodlands; Intermountain West region; Show all 16 Subjects
Abstract:
... One of the primary conservation threats surrounding sagebrush (Artemisia spp.) ecosystems in the Intermountain West of the United States is the expansion and infilling of pinyon pine (Pinus edulis, P. monophylla) and juniper (Juniperus spp.) woodlands. Woodland expansion into sagebrush ecosystems has demonstrated impacts on sagebrush-associated flora and fauna, particularly the greater sage-grouse ...
pinyon-juniper, etc ; Juniperus monosperma; Pinus edulis; models; roots; soil depth; soil water; soil water content; time series analysis; trees; woodlands; New Mexico; Show all 12 Subjects
Abstract:
... AIMS: (1) To develop a 3D root distribution model for piñon-juniper woodland using only tree species, sizes and locations as input. (2) To interpret a two-year time series of soil moisture relative to root distributions. METHODS: The study was conducted in a piñon (Pinus edulis (Englem.)) -juniper (Juniperus monosperma (Englem.) Sarg.) woodland in New Mexico. We extracted roots from 720 soil block ...