Rangeland Ecology & Management
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- 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 RecordSummarizes proactive management tactics that were carried out during 2012. Â Tactics include purchasing hay and supplements, contracting range riders to monitor cattle, radio telemetry, and…Publication Date 2012
- wolves
- wildlife management
- Arizona
- Mexican gray wolf
- New Mexico
- Southwestern United States
- 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 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 Impact Statement
- masked bobwhite quail
- 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 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 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 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 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 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 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 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 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 RecordPublication Date 2012
- landscape
- Coleoptera
- Nature conservation
- biodiversity
- soil management
- pastures
- Coleoptera
- Coleoptera
- 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 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 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 RecordAbstract The contribution of non-domestic grazing pressure to pastoral areas of western NSW has been reported to increase grazing intensity by at least 50%. Any control of these external grazing…Publication Date 2012
- biodiversity
- grazing management
- Australia
- ground cover
- 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 RecordAbstract The conflict that exists between the competing needs of biological conservation and those of pastoral production is well recognised, however, few studies examine these conflicts due to…Publication Date 2012
- biodiversity
- production
- Australia
- Library Collection RecordPublication Date 2012
- Alps
- summer
- grazing
- forage
- pastures
- surveys
- 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 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 RecordPublication Date 2012
- forage
- quality
- infrared radiation
- calibration
- rangelands
- Library Collection RecordPublication Date 2012
- dairy farms
- Milk products
- forage
- grasslands
- efficiency
- yields
- Library Collection RecordPublication Date 2012
- dairy farms
- Milk products
- forage
- grasslands
- efficiency
- yields
- Library Collection RecordPublication Date 2012
- control methods
- fires
- rangelands
- Ethiopia
- grazing
- Nature conservation
- biodiversity
- species
- land use
- 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 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 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 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 RecordIn this paper the analysis of Land sat images and plant ecological assessment were used to determine the land use change, plant diversity and the main plant community patterns in most environmentally…Publication Date 2012
- Normalized difference vegetation index(NDVI)
- land use change
- biodiversity
- plant community
- North Africa
- North Togo
- Library Collection RecordIn the last few decades unimproved semi-natural grasslands have been affected by intensification of land use and habitat fragmentation. Because of their biodiversity these species-rich grasslands are…Publication Date 2012
- Rhinanthus minor
- population genetics
- Hemiparasite
- Habitat restoration
- grasslands
- land use
- biodiversity
- conservation
- seeds
- restoration ecology
- Europe
- Library Collection RecordClimates are changing worldwide at rates not seen previously in geological time. This affects food production itself and the growth and reproduction of plant pathogens which reduce crop yield and…Publication Date 2012
- biodiversity
- climate change
- crop loss
- disease
- food security
- plant pathogens
- population
- resource supply
- sustainability
- Library Collection RecordThis study of the plant landscape of a sub-coastal hilly area in southern Marche, Italy, has allowed the proposal of two main models that are highly correlated with the geomorphological and…Publication Date 2012
- bioclimate
- biodiversity
- central Adriatic
- Geomorphology
- geosynphytosociology
- synphytosociology
- Marche
- Italy
- 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 Record1.?Although a major part of plant biomass is underground, we know little about the contribution of different species to root biomass in multispecies communities. We summarize studies on root…Publication Date 2012
- biodiversity
- ecosystem functioning
- intransitive competition
- niche differentiation
- plant–soil (below-ground) interactions
- root distributions
- root ecology
- soil nutrient availability
- transgressive overyielding
- Library Collection Record1. Despite recent interest in linkages between above- and below-ground communities and their consequences for ecosystem processes, much remains unknown about their responses to long-term ecosystem…Publication Date 2012
- above-ground
- below-ground
- biodiversity
- carbon sequestration
- Chronosequence
- island ecology
- natural experiment
- plant–soil (below-ground) interactions
- retrogression
- succession
- Sweden
- Library Collection Record1.?Recent studies have suggested that the simultaneous maintenance of multiple ecosystem functions (multifunctionality) is positively supported by species richness. However, little is known regarding…Publication Date 2012
- biodiversity
- biological soil crusts
- community attributes
- ecosystem functioning
- lichens
- nutrient cycling
- plant–soil (below-ground) interactions
- spatial pattern
- species evenness
- Spain
- Library Collection Record1.?Calcareous grasslands are communities of high conservation value, often characterized by high plant species richness. These grasslands have experienced a major decline in area throughout Europe,…Publication Date 2012
- biodiversity
- conservation
- determinants of plant community diversity and structure
- Environmental change
- extinction
- floristic tracking
- taxonomic homogenization
- Europe
- Library Collection RecordRecent declines in biodiversity have given new urgency to questions about the relationship between land-use change, biodiversity and ecosystem processes. Despite the existence of a large body of…Publication Date 2012
- biodiversity
- determinants of plant community diversity and structure
- ecosystem functioning
- functional plant group
- land use
- productivity
- species richness
- structural equation modelling
- Germany
- Library Collection RecordEffective biodiversity monitoring is critical to evaluate, learn from, and ultimately improve conservation practice. Well conceived, designed and implemented monitoring of biodiversity should: (i)…Publication Date 2012
- Conservation effectiveness
- management intervention
- monitoring
- biodiversity
- National Biodiversity Strategy
- management
- conservation
- policies
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