Rangeland Ecology & Management
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- Library Collection RecordThis article briefly details some of the tribe's objections to the Sierrita pipeline project which would run through the Altar Valley.Publication Date 2013
- Altar Valley
- Arizona
- cultural sites
- development
- United States
- Library Collection RecordDiscussing the major themes and political tensions of the 1960s and 70s, Mary Kasulaitis tells us the story of Arivaca in the late sixties as "the hippies" began to arrive, focusing in on…Publication Date 2013
- history
- Altar Valley
- Arivaca
- Arizona
- United States
- 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 RecordWilliam M. Marteny and his family settled at the headwaters of Arivaca Creek, filing for a homestead while trading cattle and horses. In 1919 Marteny sold the homestead, purchasing the Robles Ranch…Publication Date 2013
- history
- Altar Valley
- Arivaca
- Arizona
- United States
- 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 RecordIn 1952 Don Rowley purchased the Rancho Seco from Peggy and Jack Rubel, establishing the Carrow Cattle Company several years later after acquiring additional parcels. After his death, his sons sold a…Publication Date 2013
- history
- Altar Valley
- Arivaca
- Arizona
- United States
- Library Collection RecordA chronological overview of significant events related to the Mexican Wolf Recovery Program. Â Last updated in July 2013.Publication Date 2013
- wolves
- Arizona
- Mexican gray wolf
- New Mexico
- Southwest
- United States
- wildlife management
- Wolf management
- wolf reintroduction
- Library Collection RecordUsing Science to Improve the BLM Wild Horse and Burro Program: A Way Forward reviews the science that underpins the Bureau of Land Management's oversight of free-ranging horses and burros on…Publication Date 2013
- herbivory
- appropriate management level
- Fertility Management
- genetic diversity
- United States
- Western United States
- wild burros
- wild horses
- Library Collection RecordGrasslands of the Sky Islands region once covered over 13 million acres in southeastern Arizona and adjacent portions of New Mexico, Sonora, and Chihuahua. Roughly two-thirds of these remain as…Publication Date 2013
- Altar Valley
- Arizona
- Desert Graslands
- grassland restoration
- New Mexico
- United States
- Vegetation Change
- Library Collection RecordABSTRACT: Residents of the region just north of the U.S.-Mexico border experience migration and smuggling activities through constantly changing found objects on the desert landscape--a pair of…Publication Date 2013
- Altar Valley
- Arizona
- Border Enforcement
- cultural impact
- human activity
- illegal immigration
- litter
- United States
- Library Collection RecordIn this letter, commissioned by the Altar Valley Conservation Alliance and Santa Margarita Ranch, Inc., Robertson urges the Federal Energy Regulatory Commission not to advance the issue date of the…Publication Date 2013
- Altar Valley
- Arizona
- energy development
- Environmental Impact Statement
- National Environmental Policy Act
- NEPA
- United States
- Library Collection RecordIn this letter, commissioned by the Altar Valley Conservation Alliance and Santa Margarita Ranch, Inc., Robertson urges the Federal Energy Regulatory Commission not to advance the issue date of the…Publication Date 2013
- Altar Valley
- Arizona
- energy development
- Environmental Impact Statement
- National Environmental Policy Act
- NEPA
- United States
- Library Collection RecordAn updated and revised version of an article published in 2010, Mary Kasulaitis presents us with a brief biography of some of the doctors who called the Arivaca area home between 1860 and 1940, many…Publication Date 2013
- history
- Altar Valley
- Arivaca
- Arizona
- United States
- Library Collection RecordIn this letter, Nathan Sayre states his strong opposition to the Sierrita Pipeline Project. Having worked in and written about the area for many years,his firsthand experience complements his well…Publication Date 2013
- Altar Valley
- Arizona
- endangered species
- energy development
- fire regimes
- restoration
- revegetation
- United States
- Library Collection RecordThis report focuses on final demand, employment, income and tax revenue effects recreational visitors to refuges have on the economies of local regions. In addition to the economic effects of refuge…Publication Date 2013
- Altar Valley
- Arizona
- Buenos Aires National Wildlife Refuge
- ecosystem services
- ecotourism
- United States
- wildlife refuges
- Library Collection RecordIn this letter, the authors provide a well supported introduction to the National Environmental Policy Act (NEPA) process, specifically the role alternatives play in the decision making process. From…Publication Date 2013
- Altar Valley
- Arizona
- energy development
- National Environmental Policy Act
- NEPA
- United States
- Library Collection RecordThis article tells the story of Lucretia Roberts, the first female deputy sheriff in the state. Lucretia was elected to office in 1912 in Canelo, Arizona.Publication Date 2013
- history
- Altar Valley
- Arizona
- Law enforcement
- United States
- Library Collection RecordA collection of plant images by scientific and common name.Publication Date 2013
- plants
- photography
- United States
- Library Collection RecordThe NRCS Photo Gallery contains natural resource and conservation related photos from across the USA. The Gallery is a joint project between NRCS Conservation Communications and the NRCS Information…Publication Date 2013
- natural resources
- photography
- conservation
- United States
- Library Collection RecordIn this comment letter submitted by the PNRCD, the author asserts that the draft Environmental Impact Statement (DEIS) is incomplete to the extent that it does not provide adequate information on the…Publication Date 2013
- Altar Valley
- Arizona
- energy development
- grazing
- illegal immigration
- restoration
- United States
- Library Collection RecordDescription not available.Publication Date 2013
- Africa
- Library Collection RecordIn 1969 Congress passed The National Environmental Policy Act (NEPA), a statute that substantially altered the manner in which agencies of the U.S. government make decisions regarding projects that…Publication Date 2013
- environment
- policies
- United States
- 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 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 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 RecordEmphasizing the critical role watershed stability monitoring will play in ensuring the success of post-construction restoration efforts, the Altar Valley Conservation Alliance (AVCA) urges the…Publication Date 2013
- Altar Valley
- Arizona
- energy development
- erosion control
- United States
- Watershed Stability
- 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 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 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 RecordThe Buenos Aires National Wildlife Refuge is a 117,464-acre refuge that sits within the Altar Valley. Established in 1985, the refuge is primarily made up of semi-desert grasslands, ribboned by a…Publication Date 2013
- Altar Valley
- Arizona
- United States
- 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 RecordIn 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 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 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 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 RecordPerennial herbaceous plants are a key element of the vegetation cover in arid lands, during a long period of the year, but their persistence depends on their ability to cope with acute drought. This…Publication Date 2012
- adaptation
- experimental water stress
- phenotypic response
- Poaceae
- variability
- Tunisia
- Africa
- Library Collection RecordIt has been proposed that, across broad spatial scales, climatic factors are the main drivers of ecological patterns, while biotic factors are mainly important at local spatial scales. However, few…Publication Date 2012
- diversity patterns
- herbivory
- plant–herbivore interactions
- Quaternary climate change
- resource–consumer relationships
- savanna species
- Speciation
- Africa
- Library Collection RecordTermites and large herbivores represent important functional groups in savanna ecosystems. Termites affect vegetation far beyond their mounds. In addition, large herbivores feed selectively on…Publication Date 2012
- disturbance
- landscape heterogeneity
- large herbivores
- Macrotermes
- plant–herbivore interaction
- soil fertility
- temporal dynamics
- Uganda
- Africa
- Library Collection RecordPopulation viability and productivity of grasses in southern African savannas are dependent upon both successful seed production and tiller recruitment from the belowground bud bank. Relative…Publication Date 2012
- Bud bank
- meristem
- Poaceae
- Reproductive allocation
- Vegetative Reproduction
- Africa
- Library Collection RecordDespite chronic underfunding for conservation and the recognition that funds must be invested wisely, few studies have analysed the direct costs of managing protected areas at the spatial scales…Publication Date 2012
- protected areas
- Management costs
- population pressure
- conservation planning
- Tanzania
- Africa
- Library Collection RecordThe growth of human populations around protected areas accelerates land conversion and isolation, negatively impacting biodiversity and ecosystem function, and can be exacerbated by immigration. It…Publication Date 2012
- Land-cover change
- protected areas
- immigration
- Landsat
- isolation
- Serengeti
- Africa
- Library Collection RecordWhilst there are a number of mapping methods available for determining important areas for conservation within protected areas, there are few tools available for assessing the ecological value of…Publication Date 2012
- Biodiversity valuation
- connectivity
- Ecological footprint
- fragmentation
- threatened species
- resilience
- Algeria
- Africa
- Library Collection RecordThe Bahima ethnic group have been crossbreeding autochthonous Ankole with Holstein-Friesian cattle. Separate herds (pure Ankole and crossbreds) are common. A survey was conducted to characterize…Publication Date 2012
- Ankole cattle
- Indigenous knowledge
- pasture composition
- pasture management
- Uganda
- Africa
- Library Collection RecordClimate change impacts on agriculture could arguably be most critical for developing countries in tropical regions: their populations rely importantly on agriculture and climate-dependant resources,…Publication Date 2012
- climate change
- agriculture
- impacts
- tropics
- C4 crops
- plant production
- precipitation
- modelling
- subsistence agriculture
- food security
- Africa
- Library Collection RecordThe contribution of forest and wild products to the rural economy is typically undervalued in standard socioeconomic surveys. In this paper, we analyze the contribution of forests and other wild…Publication Date 2012
- environmental income
- forests
- inequality
- Livelihoods
- sustainability
- Uganda
- Africa