Rangeland Ecology & Management
Get reliable science
Toggle Search
Result Type
Collection
Keywords
Document Type
Displaying 101 - 150 of 1377 results
- 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: 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 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 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 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 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 RecordWhile finalizing the Multi-species Conservation Plan (MSCP), Pima County created this 18 page summary to enhance the public's understanding of the extensive plan. The MSCP was created to…Publication Date 2012
- Altar Valley
- Arizona
- conservation
- endangered species
- Endangered Species Act
- National Environmental Policy Act
- Pima County
- 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 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 RecordThis memorandum discusses the proposed designation of Critical Habitat as required by the Endangered Species Act for the jaguar in Pima County.Publication Date 2012
- Altar Valley
- Arizona
- Critical Habitat
- endangered species
- Endangered Species Act
- Jaguar
- Pima County
- 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 Not Available.Publication Date 2012
- Altar Valley
- Arizona
- Border Enforcement
- Border Security
- conservation
- immigration
- migration
- 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 RecordA rising plate meter (RPM) is an instrument used for the measurement of compressed sward height and estimation of yield on grasslands. The aim of this study was to investigate the use of an RPM to…Publication Date 2012
- forage
- perennial legumes
- alfalfa
- indirect method
- sward measurement
- Czech Republic
- Library Collection RecordThis article provides a brief history of several major roads in the Altar Valley from the initial community-led push for the development of improved roads to facilitate use of the newly available…Publication Date 2012
- Altar Valley
- Arivaca
- Arizona
- erosion
- history
- road construction
- United States
- Library Collection RecordThis article provides an overview of the notable events of 1918 including the filming of two westerns, The Trail to Yesterday and The Light of Western Stars, the drafting of several Arivaca residents…Publication Date 2012
- Altar Valley
- Arivaca
- Arizona
- history
- 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 RecordEarly in 1896 the owners of the Montana Mine requested the contruction or repair of a road over which they could haul ore. This led Pima County to declare the road from Amado to Oro Blanco a County…Publication Date 2012
- road construction
- erosion
- history
- Altar Valley
- Arizona
- United States
- 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 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 RecordThis article provides the background for the construction of Ruby Road and details the politics surrounding its placement and maintenance over the years. As with many of the road projects in the late…Publication Date 2012
- mining
- road construction
- history
- Altar Valley
- Arivaca
- Arizona
- United States
- Library Collection RecordIn this installment of Arivaca Yesterdays Mary Kasulaitis investigates the question of Arivaca's origins through a dissection of "Harvey's Historic Hyperbole," a claim made by…Publication Date 2012
- history
- Altar Valley
- Arizona
- United States
- Library Collection RecordThis article provides a brief but entertaining overview of life in the Arivaca area in 1917. Many of the more exciting events were born of the tensions surrounding the impending prohibition of…Publication Date 2012
- Altar Valley
- Arivaca
- Arizona
- history
- United States
- Library Collection RecordThis article provides a brief overview of what life was like in Arivaca after 1912. Arivaca was essentially a company town of the Arivaca Land and Cattle Company (ALCC). The ALCC owned the town store…Publication Date 2012
- ranching
- history
- cattle
- Altar Valley
- Arizona
- United States
- Library Collection RecordThis article provides a brief overview of what life was like in Arivaca from its early years in the 1860s to 1912 when Arizona gained statehood.Publication Date 2012
- history
- Altar Valley
- Arizona
- United States
- 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 RecordIn general, the more livestock eat, the more weight they gain or milk they produce. Thus, forage intake is key to animal performance. Agronomists manage for plant density and height to ensure…Publication Date 2012
- forage harvesters
- forage
- livestock raising
- Library Collection RecordPublication Date 2012
- Alps
- summer
- grazing
- forage
- pastures
- surveys
- Library Collection RecordPublication Date 2012
- dairy farms
- Milk products
- forage
- grasslands
- efficiency
- yields
- Library Collection RecordPublication Date 2012
- grasses
- grasslands
- sown grasslands
- Trifolium
- Trifolium repens
- Phleum pratense
- Bromus inermis
- Bromus
- nutrition
- soil fertility
- fertilizer application
- nitrogen fertilizers
- nitrogen
- yields
- forage
- Feed Crops
- Trifolium
- Trifolium repens
- Phleum pratense
- Bromus inermis
- Bromus
- nutrition
- Trifolium
- Trifolium repens
- Phleum pratense
- Bromus inermis
- Bromus
- Library Collection RecordPublication Date 2012
- dairy farms
- Milk products
- forage
- grasslands
- efficiency
- yields
- 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 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 RecordPat Johnson and Roger Gates of South Dakota State University explain how to correctly estimate utilization of forage in a rangeland setting. Source: Autonomy ProductionsPublication Date 2012
- utilization
- forage
- grazing
- United States
- Library Collection RecordIncreasing world human population, declining reserves of cheaply extracted fossil fuels, fresh water scarcity, and climatic instability will put tremendous pressure on world rangelands as the…Publication Date 2012
- forage
- livestock
- 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 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 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 RecordPublication Date 2012
- analytical methods
- digestibility
- rangeland soils
- forage
- Library Collection RecordPublication Date 2012
- forage
- quality
- infrared radiation
- calibration
- rangelands
- 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 RecordThis article follows the Ronstadts, a prominent family in early Southern Arizona history, from Frederick Augustus Ronstadt's arrival in Mexico in the 1850s to the present day.Publication Date 2012
- history
- Altar Valley
- Arizona
- 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 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 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 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 RecordPublication Date 2012
- Alps
- summer
- grazing
- forage
- pastures
- surveys
- 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