Rangeland Ecology & Management
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- Library Collection RecordBased on an extensive literature review and the professional experience of experts in the field, this memorandum provides a professional analysis of the mitigation measures that Pima County feels…Publication Date 2014
- Altar Valley
- Arizona
- ecological restoration
- energy development
- mitigation
- restoration
- United States
- Library Collection RecordIf feeding poor-quality forages (less than 7% crude protein and 50% TDN) are a necessary part of your livestock operation, exposing replacement females to poor-quality roughage early in life with…Publication Date 2014
- forage
- Diet preferences
- livestock raising
- Library Collection RecordIn this brief letter of opposition, Pat King urges the government officials responsible for permiting the construction of the pipeline to consider local cultural and environmental resources as they…Publication Date 2014
- Altar Valley
- Arizona
- energy development
- natural gas
- Sonoran Desert
- United States
- Library Collection RecordWith a cover letter written by C. H. Huckelberry, the Pima County Administrator, this letter of opposition outlines the county's arguement regarding the economic impacts of the planned Sierrita…Publication Date 2014
- Altar Valley
- Arizona
- energy development
- natural gas
- Sonoran Desert
- United States
- Library Collection RecordFERC issues Final Environmental Impact Statement on Sierrita Pipeline Project (Docket Nos. CP13-73-000 and CP13-74-000) Issued: March 28, 2014 The staff of the Federal Energy Regulatory Commission…Publication Date 2014
- Altar Valley
- Arizona
- endangered species
- energy development
- Environmental Impact Statement
- Sonoran Desert
- United States
- Library Collection RecordThe Forest Health staff of the Southwestern Region provides assistance and expertise to Federal, State, Tribal and private land managers in Arizona and New Mexico concerning forest health conditions…Publication Date 2014
- Arizona
- Library Collection Record
57 Butterflies
A brief overview of the lifestyle, importance and variety of butterflies that reside in the Sonoran Desert.Publication Date 2014- Altar Valley
- Arizona
- Butterflies
- Lepidoptera
- Sonoran Desert
- United States
- Library Collection RecordQuaking aspen are widely revered by range and wildlife managers alike for their diverse and nourishing array of understory plants. Young aspen sprouts are particularly favored by deer, elk, cattle,…Publication Date 2014
- livestock feed
- forage
- Library Collection RecordThe Sonorensis is a magazine published by the Arizona-Sonora Desert Museum. Over the years it's articles have focused on a variety of topics central to the conservation of the flora and fauna of…Publication Date 2014
- Altar Valley
- Arizona
- climate change
- conservation
- cultural traditions
- edible plants
- Jaguar
- Sea of Cortez
- tradional foods
- United States
- Library Collection RecordThe Arizona-Sonora Desert Museum's Digital Library includes a catalog of images, narrative, and scientific nomenclature of plants, animals, minerals, and biotic communities of the Sonoran Desert…Publication Date 2014
- animal taxonomy
- Arizona
- educational materials
- native species
- photography
- plant taxonomy
- United States
- Library Collection RecordFounded in 1952, the Arizona-Sonora Desert Museum is widely recognized throughout the world as a model institution for innovative presentation and interpretation of native plants and animals featured…Publication Date 2014
- Arizona
- educational resources
- environmental research
- Sonoran Desert
- United States
- Library Collection RecordAbstract: Erosion dynamics in semiarid environments is defined by high magnitude, low frequency rainfalls that produce runoff with high sediment concentration. Check dams are widely used in this…Publication Date 2014
- Arizona
- Check dam
- erosion
- runoff
- Santa Rita Mountains
- sediment yield
- semiarid
- United States
- watershed
- Library Collection RecordAllelopathy has traditionally been viewed as a phytotoxic disruption of recipient plant metabolism, and allelopathic effects are generally strongest on species lacking historic exposure to particular…Publication Date 2014
- grasslands
- ecosystem ecology
- allelopathy
- autotoxicity
- Centaurea maculosa
- competition avoidance strategy
- historic interactions
- intraspecific recognition
- novel weapons hypothesis
- plant population and community dynamics
- spatiotemporal biodiversity
- sympatric species recognition
- germination
- United States
- Argentina
- Library Collection RecordFifteen native and common exotic herbaceous species from four functional groups (C4 grass, C3 grass, chamaephyte and hemicryptophyte) occurring within remnant and revegetated grassland and grassy…Publication Date 2014
- arbuscular mycorrhizal fungi
- ecological restoration
- grasslands
- grassy woodlands
- revegetation
- restoration ecology
- seeds
- Victoria
- Australia
- Library Collection RecordThe U.S. Fish and Wildlife Serivice's Species Profile page for the Pima Pineapple Cactus provides general information on the cactus as well as an occurrence map, and links to related documentsPublication Date 2014
- Altar Valley
- Arizona
- Coryphantha scheeri
- Pima Pineapple Cactus
- United States
- Library Collection RecordThe exclusion of regular fire and the introduction of livestock grazing have altered native grassland composition on Victoria's volcanic plains, commonly resulting in spear-grass and wallaby-…Publication Date 2014
- natural temperate grassland of the Victorian volcanic plains
- stable states
- transition
- fire ecology
- restoration ecology
- grazing
- grasslands
- indigenous encroaching species
- Victoria
- Australia
- Library Collection RecordOutlines Depredation Compensation Guidelines to compensate livestock producers for wolf depredations. ÂPublication Date 2014
- wolves
- endangered species
- wildlife management
- Arizona
- Mexican gray wolf
- New Mexico
- Southwestern United States
- Wolf management
- Library Collection RecordChanges in livestock production systems have led to land-use changes and abandonment, especially of semi-natural grassland in agriculturally less favoured regions. The generation of energy from…Publication Date 2014
- species richness
- plant functional groups
- digestibility
- diversity
- bioenergy
- Fibre
- functional groups
- Methane
- grasslands
- Thuringia
- Germany
- Library Collection RecordThe US Fish and Wildlife Service's Species Profile page on the Cactus Ferruginous Pygmy Owl provides a brief overview of the owl's habitat, life history and population status. The page also…Publication Date 2014
- Altar Valley
- Arizona
- Cactus Ferrunginous Pygmy Owl
- Glaucidium brasilianum cactorum
- United States
- Library Collection RecordChilean needle grass [Nassella neesiana (Trin. & Rupr.) Barkworth; CNG] is a perennial spear grass that has invaded pastures in south-eastern Australia and can lead to a substantial reduction of…Publication Date 2014
- management
- grazing
- sheep
- grazing management
- pasture management
- sheep
- Weeds
- Alien invasive species
- grasslands
- animal production
- Herbicide
- soils
- seeds
- Austrailia
- Library Collection RecordSince its foundation in 2000 the Reading the Range program has transformed ranching in Gila County, AZ. The percentage of ranchers who incorporate Reading the Range monitoring techniques has risen…Publication Date 2014
- Arizona
- Gila County
- Library Collection RecordThis page provides information and photographs of the tortoise and its habitat and ecology.Publication Date 2014
- Altar Valley
- Arizona
- Gopherus morafkai
- Sonoran Desert Tortoise
- United States
- Library Collection RecordAnnual report on the status of the Mexican Wolf Recovery Program.  Reporting Period: January 1 – December 31, 2013ÂPublication Date 2014
- wolves
- endangered species
- wildlife management
- Arizona
- New Mexico
- Southwestern United States
- Wolf management
- Library Collection RecordIn this article Mary Kasulaitis describes a number of historic droughts, referencing rainfall records and personal accounts of area residents, and discusses the importance of precipitation to the…Publication Date 2014
- history
- Rainfall patterns
- drought
- Altar Valley
- Arizona
- United States
- Library Collection RecordResearch to study the effect of cover crop sowing rate, row spacing and cultivar on establishment of lucerne (Medicago sativa L.)-based pastures in a semi-arid zone mixed-farming system was…Publication Date 2014
- Lucerne
- plant production
- rainfall
- pasture
- management
- undersow
- nurse crop
- alfalfa
- forage
- companion crop
- Austrailia
- Library Collection RecordThe main aim of this study was to examine how concentrations of the micronutrients cobalt, copper, iron, manganese, molybdenum, nickel and zinc change with phenological development in red clover,…Publication Date 2014
- forage quality
- nutrition
- forage
- grass
- Harvest
- legumes
- Plant Components
- stage of maturity
- trace elements
- dry matter
- Sweden
- Library Collection RecordSeed dispersal is thought to be unpredictable and outside a plant's control. But directed seed dispersal by mutualistic birds can increase probabilities of germination and survival by the non-…Publication Date 2014
- abiotic stress
- dispersal in time
- facilitation
- frugivory
- plant demography
- plant neighbourhoods
- plant-plant interactions
- risk spreading
- Desert Grassland
- ecosystem ecology
- Arizona
- USA
- Library Collection RecordIncreasing plant species diversity in grasslands may improve productivity and stability of yields. In a field experiment, we investigated the herbage dry-matter (DM) yield and crude protein content…Publication Date 2014
- plant production
- grasslands
- Dry Matter Yield
- legumes
- management
- fertiliser
- soil fertility
- multispecies mixtures
- cutting
- grazing
- grass-clover
- Trifolium pratense
- Trifolium repens
- Jutland
- Denmark
- Library Collection RecordPrior to the 1960s, symbiotically fixed nitrogen (N) in forage legumes in most temperate grassland systems was the main input of nitrogen other than that recycled in manures. However, as inorganic N…Publication Date 2014
- grasslands
- forage quality
- Europe
- North America
- Library Collection RecordAbstract Early detection of emerging invasive plants depends on maximizing the probability of detecting new populations. Repeated surveys along a gradient of environmental conditions or in areas…Publication Date 2014
- Alien invasive species
- grasslands
- management
- Colonisation
- Emerging invaders
- Goldenrod
- management
- non-native species
- Weed risk assessment
- Europe
- Library Collection RecordThe ingression of woody plants into savannas, known as bush or shrub encroachment, has become a global concern. Fire has been acknowledged as a key factor in managing woody vegetation in savannas.…Publication Date 2014
- Bush encroachment
- savanna
- fire
- management
- grasslands
- old fields
- herbivores
- fire ecology
- Aulendorf
- Baden-Württemberg
- Germany
- Library Collection RecordA prominent hypothesis for plant invasions is escape from the inhibitory effects of soil biota. Although the strength of these inhibitory effects, measured as soil feedbacks, has been assessed…Publication Date 2014
- Alien invasive species
- soils
- restoration ecology
- exotic species
- grasslands
- invasion
- natural enemies hypothesis
- negative soil feedback
- plant-soil (below-ground) interactions
- soil biota
- soil pathogens
- North America
- Library Collection RecordForage legumes have the potential to contribute substantially to warm-season, subtropical and tropical pastures and rangelands. Compared to grasses, they have advantages in accessing subsoil…Publication Date 2014
- grasslands
- pastures
- rangelands
- legumes
- forage ecology
- nutrients
- management
- agriculture
- nutritional value
- Library Collection RecordTo elucidate the cessation impacts of agricultural management on a semi-natural grassland ecosystem, effects of grazing and burning on species composition of vascular plants were investigated in Mt.…Publication Date 2014
- management
- agriculture
- grasslands
- grazing
- fire ecology
- species richness
- Agricultural disuse
- environmental gradient analysis
- scale dependent
- soil physical conditions
- volcanic ash soil
- Mt. Aso
- Japan
- Library Collection RecordPredicting species composition in mixed swards by near infrared reflectance spectroscopy (NIRS) can save labour in grassland research, provided equations are available. This study compares…Publication Date 2014
- grasslands
- management
- near infrared reflectance spectroscopy
- botanical composition
- Festuca arundinacea Schreb.
- Trifolium repens L.
- calibration
- Merelbeke
- Belgium
- Library Collection RecordAbstract Desert marshes, or cienegas, are extremely biodiverse habitats imperiled by anthropogenic demands for water and changing climates. Given their widespread loss and increased recognition,…Publication Date 2014
- Arizona
- Cienega
- Gabions
- restoration
- United States
- wetlands
- Library Collection RecordAbstract Stipa tenacissima L. (alpha grass) steppes are one of the most representative ecosystems in arid Mediterranean ecosystems. On the one hand these steppes, which are perpetually exposed to…Publication Date 2014
- seed germination
- steppes
- Stipa tenacissima L.
- temperature
- water potential
- grasslands
- restoration ecology
- seeds
- gemination
- Northern Africa
- Library Collection RecordThe University of Arizona Water Resources Research Center directory of water expertsPublication Date 2014
- Arizona
- Library Collection RecordThe quality of the landscape is declining in many grassland and savanna areas of Africa as a consequence of woody plant encroachment. We investigated the changes in vegetation at selected sites on…Publication Date 2014
- Vegetation Change
- grasslands
- savanna
- degradation
- Bush encroachment
- land use
- soils
- rainfall
- temperature
- climate change
- carbon dioxide
- KwaZulu-Natal
- South Africa
- Library Collection RecordAs Kasulaitis puts it, in the early 1800s "Arivaca was a ranch, not a town." The Ortis family had a 8,896 acre land grant that covered most of the valley and raised cattle, but when three…Publication Date 2014
- ranching
- history
- Altar Valley
- Arivaca
- Arizona
- United States
- Library Collection RecordFew assessments of the effects of fire and grazing on the herbaceous components of savannas have been reported for Africa. In the Kruger National Park, South Africa, range condition was monitored at…Publication Date 2014
- fire ecology
- grazing
- management
- savanna
- game
- rangeland condition
- rainfall gradient
- grasses
- forage
- ecosystem ecology
- Kruger National Park
- South Africa
- Library Collection RecordThemeda triandra Forssk. is a common perennial grass in southern African grasslands that tolerates low nutrient soils. Establishment of the species into degraded or transformed areas is difficult,…Publication Date 2014
- grasslands
- soil nutrients
- tillers
- restoration ecology
- fertiliser
- nitrogen
- phosphorus
- potassium
- Themeda triandra
- southern Africa
- Library Collection RecordAbstract The knowledge of relative performance of plants across environmental gradients is critical for their effective management and for understanding future range expansion. Pennisetum setaceum is…Publication Date 2014
- Alien grass
- Ecological invasions
- competition
- disturbance
- Seedling translocation
- Transplant experiment
- Alien invasive species
- management
- grasslands
- savanna
- ecosystem ecology
- restoration ecology
- South Africa
- Library Collection RecordThe untimely passing away of Rob Scott-Shaw on 9 December 2012 came as a great shock to his family, friends and colleagues. Rob’s dedicated work ethic and commanding knowledge of botanical…Publication Date 2014
- tribute
- ecology
- grasslands
- KwaZulu-Natal
- South Africa
- Library Collection RecordThis article provides a brief history of the Rancho de la Osa, a guest ranch located in Southern Arizona, intermixed with commentary on the current owners' plans to sell the property. The first…Publication Date 2014
- Altar Valley
- Arizona
- Cattle Ranching
- Historical Site
- United States
- Library Collection RecordArchaeology Southwest is a private 501 (c) 3 nonprofit organization headquartered in Tucson, Arizona. For three decades, Archaeology Southwest has practiced a holistic, conservation-based approach to…Publication Date 2014
- archaeology
- Arizona
- non-profit organization
- Southwest
- United States
- Library Collection RecordPlants are multifaceted organisms that have evolved numerous solutions to the problem of establishing, growing and reproducing with limited resources. The intrinsic dimensionality of plant traits is…Publication Date 2014
- community assembly
- curse of dimensionality
- determinants of plant community diversity and structure
- ecosystem processes
- intrinsic dimension
- isomap
- nonlinear data reduction
- plant spectrums
- plant strategies
- plant traits
- ecosystem ecology
- Arizona
- California
- USA
- Sheffield
- United Kingdom
- Library Collection RecordThe Drought Calculator (DC), a spreadsheet-based decision support tool, was developed to help ranchers and range managers predict reductions in forage production due to drought. Forage growth…Publication Date 2013-09-01
- cross validation
- forage
- precipitation
- rangeland drought
- stocking decisions
- Library Collection RecordPurple threeawn (Aristida purpurea Nutt. varieties) is a native grass capable of increasing on rangelands, forming near monocultures, and creating a stable state. Productive rangelands throughout the…Publication Date 2013-09-01
- Aristida
- grasslands
- nitrogen amendments
- prescribed burning
- restoration
- Library Collection RecordWe examined the effect of fire on vegetation composition with the use of an experiment with four different fire frequencies (annual, 2-yr interval, 4-yr interval, and an intended control with no…Publication Date 2013-05-01
- C3 and C4 grasses
- fire frequency
- grasslands
- legumes
- Lespedeza capitata
- old fields
- Poa pratensis
- Schizachyrium scoparium
- species richness
- succession