Rangeland Ecology & Management
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- Library Collection RecordPart of the National Environmental Policy Act process, this Environmental Impact Statement presents a number of alternative action options related to endangered species management within Pima County…Publication Date 2012
- Altar Valley
- Arizona
- endangered species
- National Environmental Policy Act
- natural resource management
- Pima County
- United States
- Library Collection RecordPart of the Sonoran Desert Conservation Plan, Pima County's Multi-species Conservation Plan deals with the management of the various endangered species found in the area.Publication Date 2012
- Altar Valley
- Arizona
- conservation
- endangered species
- management
- United States
- Library Collection RecordSix chapters of Dissertation: (1) Historical and taxonomic review of gray wolves in Arizona, (2) Non-invasive genetic sampling to assess abundance of Mexican wolves on the Fort Apache Indian…Publication Date 2012
- endangered species
- wildlife management
- wolves
- Arizona
- Mexican gray wolf
- Wolf management
- wolf reintroduction
- Library Collection RecordSummary provides the best available information on costs to date of the primary agencies involved in the Mexican wolf recovery and reintroduction. Â Estimates are not an exact accounting of actual…Publication Date 2012
- endangered species
- wildlife management
- wolves
- Arizona
- Mexican gray wolf
- New Mexico
- Southwestern United States
- Wolf management
- wolf reintroduction
- Library Collection RecordAbstract: CBP proposes to maintain and repair existing tactical infrastructure along the U.S./Mexico international border in Arizona. The existing tactical infrastructure includes fences and gates…Publication Date 2012
- Altar Valley
- Arizona
- Border Enforcement
- Environmental Impact Statement
- masked bobwhite quail
- United States
- Library Collection RecordAbstract: CBP proposes to maintain and repair existing tactical infrastructure along the U.S./Mexico international border in Arizona. The existing tactical infrastructure includes fences and gates…Publication Date 2012
- Altar Valley
- Arizona
- Border Enforcement
- Environmental Impact Statement
- masked bobwhite quail
- United States
- Library Collection Record"The purpose of this book is to insure a deep appreciation of the eight-valley region in southern Arizona and to raise awareness of the various watershed organizations taking action to improve…Publication Date 2012
- Altar Valley
- Arizona
- land management
- land use
- ranching
- United States
- Library Collection RecordAnnual report on the status of the Mexican Wolf Recovery Program. Â At the year's end, at least 75 wolves in 13 packs are in the wild.Publication Date 2012
- wolves
- endangered species
- wildlife management
- Arizona
- Mexican gray wolf
- New Mexico
- Library Collection RecordSummarizes proactive management tactics that were carried out during 2012. Â Tactics include purchasing hay and supplements, contracting range riders to monitor cattle, radio telemetry, and…Publication Date 2012
- wolves
- wildlife management
- Arizona
- Mexican gray wolf
- New Mexico
- Southwestern United States
- Library Collection RecordThis document includes the Biological Opinion issued by the United States Fish and Wildlife Service regarding the potential impacts of the proposed multi-unit burn plan on species of concern within…Publication Date 2012
- Altar Valley
- Arizona
- Chiricahua leopard frog
- endangered species
- Endangered Species Act
- masked bobwhite
- Pima Pineapple Cactus
- prescribed fire
- United States
- Library Collection RecordThis historical data set consists of 178 permanent 1-m2 quadrats located on semi-desert grasslands at the Santa Rita Experimental Range, Arizona, USA. Individual plants in these quadrats were…Publication Date 2012
- climate
- Geographic Information Systems (GIS)
- livestock grazing
- plant community
- plant demography
- Sonoran Desert
- species interactions
- Santa Rita Experimental Range
- Arizona
- USA
- Library Collection RecordThis biological opinion was issued in response to a request for formal consultation with the U.S. Fish and Wildlife Service regarding the potential impacts resulting from the proposed Multi-Unit Burn…Publication Date 2012
- Altar Valley
- Arizona
- Chiricahua leopard frog
- Colinus virginianus ridgwayi
- Coryphantha scheeri var. robustispina
- endangered species
- Endangered Species Act
- masked bobwhite quail
- Pima Pineapple Cactus
- Rana chiricahuensis
- United States
- Library Collection RecordThe City of Tucson owns 21,000 acres within Avra Valley which sits west of the City limits and supports several federally recognized species. In order to comply with the Endangered Species Act, the…Publication Date 2012
- Arizona
- Cactus Ferruginous Pygmy Owl
- Desert Tortoise
- endangered species
- lesser long-nosed bat
- pale Townsend's big-eared bat
- Tucson shovel-nose snake
- United States
- western burrowing owl
- western yellow-billed cuckoo
- Library Collection RecordThis poster presents the findings of a study that examined the relationship between perennial grass biomass and mesquite density on the Santa Rita Experimental Range in southern Arizona. The study…Publication Date 2012
- Arizona
- mesquite
- Percent Cover
- perennial grass
- Santa Rita Experimental Range
- United States
- Library Collection RecordAbstract The rangeland science profession in the United States has its roots in the widespread overgrazing and concurrent severe droughts of the late 19th century. These drivers contributed to…Publication Date 2012
- applied science
- Arizona
- ecosystem management
- range science history
- United States
- Library Collection RecordThe City of Tucson owns 21,000 acres within Avra Valley which sits west of the City limits and supports several federally recognized species. In order to comply with the Endangered Species Act, the…Publication Date 2012
- Arizona
- Cactus Ferruginous Pygmy Owl
- Desert Tortoise
- endangered species
- lesser long-nosed bat
- pale Townsend's big-eared bat
- Tucson shovel-nose snake
- United States
- western burrowing owl
- western yellow-billed cuckoo
- Library Collection RecordThe City of Tucson owns 21,000 acres within Avra Valley which sits west of the City limits and supports several federally recognized species. In order to comply with the Endangered Species Act, the…Publication Date 2012
- Arizona
- Cactus Ferruginous Pygmy Owl
- Desert Tortoise
- endangered species
- lesser long-nosed bat
- pale Townsend's big-eared bat
- Tucson shovel-nose snake
- United States
- western burrowing owl
- western yellow-billed cuckoo
- Library Collection RecordAbstract: CBP proposes to maintain and repair existing tactical infrastructure along the U.S./Mexico international border in Arizona. The existing tactical infrastructure includes fences and gates,…Publication Date 2012
- Altar Valley
- Arizona
- Border Enforcement
- environmental impacts
- illegal immigration
- NEPA
- United States
- Library Collection RecordAbstract Not Available.Publication Date 2012
- Altar Valley
- Arizona
- Border Enforcement
- Border Security
- conservation
- immigration
- migration
- United States
- Library Collection RecordAbstract: CBP proposes to maintain and repair existing tactical infrastructure along the U.S./Mexico international border in Arizona. The existing tactical infrastructure includes fences and gates,…Publication Date 2012
- Altar Valley
- Arizona
- Border Enforcement
- environmental impacts
- illegal immigration
- NEPA
- United States
- Library Collection RecordAbstract: CBP proposes to maintain and repair existing tactical infrastructure along the U.S./Mexico international border in Arizona. The existing tactical infrastructure includes fences and gates,…Publication Date 2012
- Altar Valley
- Arizona
- Border Enforcement
- environmental impacts
- illegal immigration
- NEPA
- United States
- Library Collection RecordAltar Valley is included in this USGS study examining nitrate and arsenic concentrations in basin-fill aquifers of the southwestern United States.Publication Date 2012
- Altar Valley
- Arizona
- arsenic
- nitrates
- United States
- water pollution
- water quality
- Library Collection RecordAbstract Although rock check dams have been used for centuries to control erosion and support subsistence agriculture on western US rangelands, there is a lack of measured data to quantify their…Publication Date 2012
- Alluvial fan
- Arizona
- Check dam
- grassland
- Landscape degradation
- restoration
- southeast Arizona
- United States
- Library Collection RecordDesignated by the Arizona Desert Wilderness Act of 1990, the Baboquivari Peak Wilderness and Coyote Mountains Wilderness areas total 7,145 acres and are located approximately 40 miles southwest of…Publication Date 2012
- Altar Valley
- Arizona
- Baboquivari Peak
- Coyote Mountains
- United States
- wilderness
- wilderness management
- Library Collection RecordUS policies for securing the border with Mexico are driven by multiple political concerns, including the desire to control illegal trade and immigration in a way that conveys “border security†to…Publication Date 2012
- Altar Valley
- Arizona
- Border Security
- environmental justice
- migration
- Library Collection RecordAbstract Monitoring is a critical component of adaptive management but often weak or missing in practice. We examined grazing allotment files to identify patterns in monitoring and management…Publication Date 2012
- adaptive management
- Altar Valley
- Arizona
- coronado national forest
- grazing allotments
- monitoring
- Southern Arizona
- Library Collection RecordThese stories provide examples of how University of Arizona Cooperative Extension (UACE) translates research-based information to help people solve real, everyday problems and improve the quality of…Publication Date 2012
- cattle
- grazing management
- ranching
- economics
- profitability
- Arizona
- Library Collection RecordMany nonnative invasive grasses alter fire regimes to their own benefit and the detriment of native organisms. In southern Arizona the nonnative Lehmann lovegrass (Eragrostis lehmanniana Nees)…Publication Date 2011-07-01
- Arizona
- Eragrostis lehmanniana
- invasive grasses
- Lehmann lovegrass
- livestock grazing
- native plants
- Library Collection RecordAbstract: This article makes the case for addressing nonhumans as actors in geopolitical processes such as boundary making and enforcement. The challenge of this line of argumentation is to account…Publication Date 2011
- Altar Valley
- Arizona
- Border Enforcement
- Buenos Aires National Wildlife Refuge
- United States
- Library Collection RecordThis field guide provides photos and information on the wildflowers of southern Arizona.Publication Date 2011
- Altar Valley
- Arizona
- United States
- wildflowers
- Library Collection RecordToday Pima County manages over 230,000 acres of natural areas for conservation due to supportive taxpayers, visionary County leadership, hardworking staff, willing property owners and resourceful…Publication Date 2011
- Altar Valley
- Arizona
- Pima County
- Southern Arizona
- United States
- Library Collection RecordIn this article, Tana Kappel discusses the history and role of prescribed fire in the Altar Valley with a number of local stakeholders. Although fire historically played an important role in the…Publication Date 2011
- Altar Valley
- Arizona
- desert grasslands
- endangered species
- prescribed fire
- United States
- Library Collection RecordThis document describes how biosoilds are produced, and summarizes their regulation in Arizona. It also covers current research being carried out on biosolids and answers some of the common questions…Publication Date 2011
- Arizona
- biosoilds
- fertilizer
- United States
- Library Collection RecordThis commentary compares two regions of the United States that differ drastically in physical attributes, but, in the authors' eyes, are united by a common "environment of risk."…Publication Date 2011
- Altar Valley
- Arizona
- cultural landscapes
- ranching
- risk environment
- rural anthropology
- social sustainability
- Library Collection RecordMany exotic species have been introduced or have escaped into grasslands where they form "novel ecosystems" of species with no evolutionary history of interaction. Novel ecosystems are…Publication Date 2011
- novel ecosystems
- Alien invasive species
- phenology
- niche partitioning
- Equalizing and stabilizing effects
- plant diversity
- tallgrass prairie
- altered precipitation
- global change
- Eragrostis curvula
- Panicum coloratum
- Sorghum halapense
- Sporobolus compositus
- Panicum virgatum
- Sorghastrum nutans
- grasslands
- restoration ecology
- ecosystem ecology
- species diversity
- rainfall
- Texas
- USA
- Library Collection RecordThis article continues the story of the Kellner family, opening just as John F. Kellner leases his ranch, and sells the store and boarding house before moving the family to Casa Grande.Publication Date 2011
- ranching
- history
- Altar Valley
- Arivaca
- Arizona
- United States
- Library Collection RecordThe Utah Calvary was part of a National Guard contigent called up by President Wilson to deal with the spill over from the Mexican Revolution along the U.S.-Mexico border. The unit was involved in…Publication Date 2011
- history
- Altar Valley
- Arizona
- Mexican Revolution
- United States
- Library Collection RecordThe objectives of this study were to use the in vitro gas production (IVGP) technique to evaluate the pattern and parameters of anaerobic fermentation of forages from south Texas pastures throughout…Publication Date 2011
- forage quality
- grazing
- cattle
- in vitro
- modelling
- nutrition
- prediction
- simulation
- Texas
- USA
- Library Collection RecordAn isolated and beautiful valley located on the west side of the Atascosa Mountains, Bear Valley was first settled by John “Yank†Bartlett who, along with his partner Henry “Hank†Hewitt and…Publication Date 2011
- ranching
- history
- Altar Valley
- Arizona
- United States
- Library Collection RecordHaving covered some of the more notable outlaws of the Arivaca area in the previous issue of The Connection, Kasulaitis delves into the early years of law enforcement in southern Arizona. Robert H.…Publication Date 2010
- Altar Valley
- Arizona
- history
- Law enforcement
- United States
- Library Collection RecordIn the 1860s Arivaca was abandoned for a time, but just as its streets were starting to grow over Colonel M. Oliver Davidson was arriving in the area, the newly appointed superintendent of the Cerro…Publication Date 2010
- history
- mining
- Altar Valley
- Arizona
- United States
- Library Collection RecordThis article provides a brief history of Anglo-amerindian conflict in Southern Arizona, focusing on the impact of Apache raids on the settlement and development of the Arivaca area.Publication Date 2010
- history
- Altar Valley
- Arizona
- United States
- Library Collection RecordDesertification, the conversion of arid grasslands to shrublands due to overgrazing and drought, is occurring on over a quarter of the land on earth. Conceptual models of desertification predict…Publication Date 2010
- Desert Grassland
- grazing
- islands of fertility
- soil nutrients
- Water Infiltration
- desertification
- drought
- modelling
- Arizona
- USA
- Library Collection RecordProvides background on responsibilities of landowners and livestock owners in Arizona regarding fencing of property. Describes state statutes that pertain to livestock and fences (Arizona Revised…Publication Date 2010
- Arizona
- fencing
- laws and regulations
- Legal Aspects
- livestock
- Open Range
- ranchers
- Small Landowners
- Library Collection Record[1] This study presents analysis of 34 years of precipitation, runoff, and sediment data collected from eight small (1.1–4.0 ha) semiarid rangeland watersheds in southern Arizona, USA. Average…Publication Date 2010
- Arizona
- erosion
- runoff
- Sediment Yields
- semiarid
- United States
- watershed
- Library Collection RecordThis annotated bibiography brings together the available literature on Lehmann lovegrass (Eragrostis lemanniana Nees.), an influential invasive species in the Altar Valley and across the West.Publication Date 2010
- Altar Valley
- Arizona
- United States
- Library Collection RecordIn this article Kasulaitis recounts some of the more notable events that have taken place within Las Guijas Valley. Now dotted with abandoned mines, the valley was once the scene of extensive mining…Publication Date 2010
- history
- Altar Valley
- Arivaca
- Arizona
- United States
- Library Collection RecordThe Baboquivari Mountains, long considered to be a sacred space by the Tohono O'odham people who are native to the area, are the westernmost of the so-called Sky Islands. The mountains form the…Publication Date 2010
- botany
- plant communities
- Botanical description
- Altar Valley
- Arizona
- Plant Identification
- United States
- Library Collection RecordPowell, Summary While we may view climate change issues as a more global or national problem, our unique Sonoran Desert ecosystem is a recognized global resource; hence climate change is an important…Publication Date 2010
- Altar Valley
- Arizona
- Pima County
- Southern Arizona
- United States
- Library Collection RecordIn this article Mary Kasulaitis describes some of the more notable cottonwoods (Populus fremontii) in the Arivaca area and ponders what historical events they may have stood witness to and why so…Publication Date 2010
- Altar Valley
- Arivaca
- Arizona
- cottonwood
- Populus fremontii
- United States