Rangeland Ecology & Management
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- Library Collection RecordIn this comment letter submitted by the Altar Valley Conservation Alliance, the authors express their concern over the narrow range of alternatives considered by the draft and the gaps in information…Publication Date 2013
- Altar Valley
- Arizona
- energy development
- mitigation
- restoration
- United States
- Library Collection RecordThis article tells the story of the Santa Lucia Ranch and the people who called it home. Originally homesteaded by Gabriel E. Angulo, Jr. in 1921, the Santa Lucia was located near the confluence of…Publication Date 2013
- ranching
- history
- Altar Valley
- Arizona
- United States
- Library Collection RecordFederal Register 50 CRF Part 17. Proposed rule.Publication Date 2013
- wolves
- endangered species
- wildlife management
- Arizona
- Mexican gray wolf
- New Mexico
- Library Collection RecordArticle and video by NBC News Investigators regarding the controversy and taxpayer cost of conducting wild horse roundups.Publication Date 2013
- Arizona
- BLM
- California
- holding facility
- Nevada
- roundup
- slaughter
- Utah
- Western United States
- wild horses
- Library Collection Record
105 Raising Arizona
In this featured article, Bree Collins explores the role the ranching community plays in environmental stewardship in the Southwest. Touching on the issues of endangered species protection, the…Publication Date 2013- Altar Valley
- Arizona
- conservation
- endangered species
- energy development
- New Mexico
- Ranching Economy
- United States
- wildfire
- Library Collection RecordIn this comment letter submitted by the Arizona Game and Fish Department, the author suggests additional steps that should be taken in order to minimize the impact of the project on the local…Publication Date 2013
- Altar Valley
- Arizona
- energy development
- mitigation
- restoration
- United States
- wildlife
- Library Collection RecordThis page contains mammal abstracts containing the taxonomy, biology, distribution, population trends, and management status of a wide variety of Arizona mammals.Publication Date 2013
- taxonomy
- biology
- distribution
- population change
- management
- wildlife
- Arizona
- Library Collection RecordThis is a summary report from a workshop held at the Santa Rita Experiment Range on February 27-28, 2013.Publication Date 2013
- drought
- seasonality
- Arizona
- Apache county
- Cochise County
- Coconino County
- Pima County
- Yavapai County
- Gila County
- Santa Cruz County
- Palmer Drought Severity Index
- Library Collection RecordThis presentation provides a brief summary of Feldman's Master's thesis work in the Altar Valley.Publication Date 2013
- Altar Valley
- Arizona
- culture
- ranching
- United States
- Library Collection RecordAbstract—Conservation biologists, NGOs, and the USFWS have established a goal of returning a viable population of jaguars into the United States. The source population for this recovery will come…Publication Date 2013
- jaguars
- Arizona
- wildlife management
- population dynamics
- Library Collection RecordThis webpage includes information related to Macho B, a male jaguar captured by Arizona Game and Fish Department officials in February 2009 who later died as a result of capture related injuries.Publication Date 2013
- jaguars
- Arizona
- Library Collection RecordThis webpage contains press releases, internal investigation transcripts, a timeline of events, and additional information on Macho B, a male jaguar captured by Arizona Game and Fish Officials which…Publication Date 2013
- jaguars
- Arizona
- Library Collection RecordMany regions of the globe are experiencing a simultaneous change in the dominant plant functional type and regional climatology. We explored how atmospheric temperature and precipitation control leaf…Publication Date 2013
- eddy covariance
- landscape position
- mesquite (Prosopis velutina)
- photosynthesis
- plant-climate interactions
- semi-arid
- temperature optima
- Vegetation Change
- woody plant encroachment
- indigenous encroaching species
- climate change
- temperature
- ecosystem ecology
- carbon flux
- rainfall
- grasslands
- savanna
- carbon dioxide
- San Pedro River
- Arizona
- USA
- Library Collection RecordKnowledge of the success or otherwise of conservation interventions is often locked within localised networks, resulting in mistakes being replicated unnecessarily. The savannahs of eastern and…Publication Date 2013
- conservation
- Evidence based conservation
- Management interventions
- national parks
- protected areas
- savanna
- management
- Africa
- Library Collection Record
115 Acknowledgements
Description not available.Publication Date 2013- Africa
- Library Collection RecordFire and herbivory are the main disturbances shaping the structure of savannas. In these ecosystems, the key strategies by which woody plants escape fire are either early height growth (the lanky…Publication Date 2013
- African savannas
- bark thickness
- cerrado
- consumer control
- disturbance regime
- fire intensity
- fire-escape strategies
- herbivory
- plant development and life-history traits
- tree height
- savanna
- fire ecology
- Africa
- Library Collection RecordLarge mammalian herbivores are well recognized to play important roles in regulating woody cover and biomass in savannas, but the extent to which browsing ungulates are capable of regulating woody…Publication Date 2013
- browsing
- dik-dik
- elephant
- mortality
- plant-herbivore interactions
- recruitment
- shrub encroachment
- top-down control
- ecosystem ecology
- savanna
- biomass
- Plant Productivity
- management
- Africa
- Library Collection RecordEuclea divinorum, a fast establishing, unpalatable, and fire resistant bush is considered an invasive species in some parts of its range. In Ol Pejeta Conservancy (OPC), Kenya, E. divinorum bushes…Publication Date 2013
- Acacia drepanolobium
- encroachment
- Euclea divinorum
- grassland
- invasion
- seedlings
- indigenous encroaching species
- grasslands
- rainfall
- ecosystem ecology
- Kenya
- Africa
- Library Collection RecordThe present study assessed the effects of deferred grazing management on rangeland condition using aboveground biomass, vegetation cover and species composition as indicators of range condition. The…Publication Date 2013
- grazing
- vegetation
- ecosystem ecology
- management
- rangeland
- biomass
- grazing management
- ngitili
- species diversity
- vegetation cover
- Shinyanga
- Meatu districts
- Tanzania
- Africa
- Library Collection RecordDescription not available.Publication Date 2013
- Africa
- Library Collection RecordDescription not available.Publication Date 2013
- Africa
- Library Collection RecordThere is a common perception in South Africa that the youth are not interested in agriculture, leading to two concerns: first, that this is exacerbating the youth unemployment crisis, and second,…Publication Date 2013
- Africa
- Library Collection RecordSavannahs are widespread vegetation type in Sudanian zone of Africa. As protected areas are often assumed to be the best way to conserve biodiversity, we assessed the effectiveness of the Pendjari…Publication Date 2013
- conservation
- diversity
- savannah
- Structure
- Woody Species
- management
- ecosystem ecology
- Africa
- Library Collection RecordThis study investigated dip-tank use effects on herbaceous vegetation and soil, and relationships between environmental and species variables. Eight dip-tanks, three each in sandy (DPBS) and loamy (…Publication Date 2013
- Africa
- Library Collection RecordWe evaluated the fodder quality of Ficus thonningii Blume in the Ahferom district of Tigray, Ethiopia. Determination of foliar macronutrients and proximate chemical compositions was undertaken using…Publication Date 2013
- Africa
- Library Collection RecordIn vitro organic matter disappearance (IVOMD) of African browse species often indicates artificially low nutritive value due to the presence of condensed tannins (CT). Diet of the rumen liquor donor…Publication Date 2013
- Africa
- Library Collection RecordThemeda triandra is a perennial tussock grass endemic to Africa, Australia and Asia. Within these regions it is found across a broad range of climates, geological substrates and ecosystems. Because…Publication Date 2013
- Africa
- Library Collection RecordA decrease in fire frequency and past grazing practices has led to dense mountain big sagebrush (Artemisia tridentata Nutt. subsp. vaseyana [Rydb.] Beetle) stands with reduced herbaceous understories…Publication Date 2012-05-01
- annual grass
- Artemisia tridentata
- brush management
- disturbance
- forage
- range improvement
- 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 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 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 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 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 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 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 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
- Nature conservation
- Development policies
- endangered species
- Environmental impact assessment
- Africa
- trade
- land management
- savannas
- wildlife management
- hunting
- 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 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 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 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 RecordAbstract Not Available.Publication Date 2012
- Altar Valley
- Arizona
- Border Enforcement
- Border Security
- conservation
- immigration
- migration
- United States
- 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 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