Rangeland Ecology & Management
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Displaying 51 - 100 of 1718 results
- Library Collection RecordThis article covers the turbulent years between 1848 and 1853 which saw Tubac burned in by Apaches, Arivaca abandoned under threat of Apache raids, and increased traffic through Tucson as 49'ers…Publication Date 2014
- history
- Altar Valley
- Arivaca
- Arizona
- 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 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 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 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 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 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 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 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 RecordNearly all climate scientists are convinced that human-caused climate change is occurring, yet half of Americans do not know or do not believe that a scientific consensus has been reached. That such…Publication Date 2014
- climate change
- communication
- United States
- 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 RecordCommunities can persist in the environment over considerable timescales. Even when subjected to multiple natural or anthropogenic disturbances, ecosystems show a remarkable resistance to change.…Publication Date 2014
- resistance
- community structure
- United States
- 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 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 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
- Library Collection RecordRangeland fire is a common naturally occurring event and management tool, with the amount and structure of biomass controlling transfer of heat belowground. Temperatures that grasshopper eggs are…Publication Date 2013-01-01
- Aulocara elliotti
- bigheaded grasshopper
- fire
- grasslands
- obscure grasshopper
- Orthoptera
- 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 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 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 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 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 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 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 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 RecordMixed-grass prairies of the northern Great Plains evolved following frequent disturbances such as drought, fire, and extensive grazing by ungulates. As a result of periodic natural disturbances,…Publication Date 2013
- axillary buds
- Bouteloua gracilis
- Pascopyrum smithii
- Hesperostipa comata
- grasslands
- meristem limitations
- prescribed burns
- tillers
- Vegetative Reproduction
- mixed grass prairie
- northern Great Plains
- 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 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 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 RecordEstimates of vegetation greenness have been commonly used to gain information on herbivores' resource use (i.e. cattle). Green vegetation is considered of higher quality than senescent…Publication Date 2013
- grasslands
- NDVI
- South Africa
- 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 RecordPlant functional diversity and soil microbial community composition are tightly coupled. Changes in these interactions may influence ecosystem functioning. Links between plant functional diversity,…Publication Date 2013
- ecology
- Ecosystem function
- soils
- spceis diversity
- grasslands
- carbon dioxide
- South Africa
- Library Collection RecordPublication Date 2013
- agriculture
- animal husbandry
- Feed Crops
- grasslands
- pastures
- efficiency
- agriculture
- 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 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 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 RecordAbstract Desert grasslands of the southwestern United States have experienced an increase in the abundance and distribution of woody plant species over the past century. Shrub encroachment has caused…Publication Date 2013
- Altar Valley
- Arizona
- black grama
- Bouteloua eriopoda
- broom snakeweed
- Gutierrezia sarothrae
- invasive species
- Lehmann lovegrass
- New Mexico
- perennial grasses
- prescribed burn
- 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 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 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 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 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 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 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 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 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