Rangeland Ecology & Management
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- Library Collection RecordAbstract—A variety of efforts are taking place to detect, inventory, and monitor the wild felids (pumas, bobcats, jaguars, and ocelots) of the Madrean Archipelago. Researchers are using a suite of…Publication Date 2005
- jaguars
- Arizona
- mapping
- habitats
- National Park Service Border Cats Project
- Borderlands Jaguar Detection Project
- Library Collection RecordThis material was digitized as part of a cooperative project between the Society for Range Management, the National Agricultural Library, and the University of Arizona Libraries. The Rangelands…Publication Date 1992-12-01
- Utah
- laws and regulations
- interpretation
- infrared imagery
- mapping
- maps
- federal government
- wetlands
- Library Collection RecordThis material was digitized as part of a cooperative project between the Society for Range Management, the National Agricultural Library, and the University of Arizona Libraries. The Rangelands…Publication Date 1995-02-01
- topography
- amortization
- spreadsheets
- landscapes
- grazing behavior
- productive life
- pastures
- mapping
- cost benefit analysis
- forage
- grassland improvement
- Library Collection RecordThe Rangelands archives are made available by the Society for Range Management and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information. Migrated from…Publication Date 2000-08-01
- Montana
- Weeds
- mapping
- multispectral imagery
- remote sensing
- global positioning systems
- aerial surveys
- Library Collection RecordMapping the distribution and abundance of invasive plants is a high priority, but establishing cost-effective and practical techniques at appropriate scales remains elusive. Mesquite is a highly…Publication Date 2007-07-01
- aerial surveys
- Australia
- invasive plants
- mapping
- monitoring costs
- remote sensing
- visual estimation techniques
- Library Collection RecordPotential vegetation environments (e.g., habitat types, range sites, ecological sites) are important to land managers because they provide a conceptual basis for the description of resource…Publication Date 2001-09-01
- Little Missouri National Grasslands
- satellite surveys
- mapping
- Landsat
- shrublands
- land use planning
- habitats
- topography
- satellite imagery
- grasslands
- prediction
- range condition
- plant communities
- woodlands
- climatic factors
- grazing
- North Dakota
- habitat types
- ecological sites
- range sites
- ecological classification
- geographic information systems
- remote sensing
- vegetation mapping
- ecological units
- Library Collection RecordInformed management of large herbivores depends largely on how well habitat availability and suitability are understood. The aims of the study were to quantify and map the distribution of sour and…Publication Date 2002-03-01
- game reserves
- sourveld
- mixed veld
- game animals
- mapping
- habitat selection
- habitats
- satellite imagery
- multispectral imagery
- South Africa
- veld
- natural grasslands
- plant communities
- wildlife management
- biomass
- botanical composition
- wildlife
- GIS
- remote sensing
- Landsat
- ground-truthing
- Library Collection RecordRangeland plant communities of the Intermountain West differ in their ecology and management requirements. Successful management of extensive areas at plant community-level resolution first requires…Publication Date 2001-03-01
- satellites
- Pinopsida
- resolution
- thematic mapper
- systeme probatoire d'observations de la terre
- irrigated conditions
- mapping
- Landsat
- artemisia arbuscula
- Purshia tridentata
- remote sensing
- satellite imagery
- multispectral imagery
- vegetation types
- Populus tremuloides
- Idaho
- Artemisia tridentata
- plant communities
- rangelands
- Cover type
- maximum likelihood
- multispectral
- rangelands
- remote sensing
- satellite imagery
- supervised classification|\vegetation
- Library Collection RecordManagement of grasslands subject to replacement by woody species requires an understanding of the scales and patterns of change and how to detect and express them. We used the Jornada del Muerto…Publication Date 1997-05-01
- mapping
- Landsat
- change
- ecological balance
- computer techniques
- remote sensing
- satellite imagery
- grasslands
- plant communities
- grazing
- New Mexico
- Library Collection RecordA computer simulation study was conducted to evaluate the effects of pattern on the precision of frequency estimates as determined from random and systematic plot placement. Computer graphics were…Publication Date 1987-09-01
- mapping
- probability analysis
- distribution
- frequency
- vegetation types
- computer simulation
- sampling
- Library Collection RecordThe construction and use of an acrylic mapping table for obtaining basic demographic information from plant populations is described. The table permits accurate and precise location of mapping…Publication Date 1988-05-01
- phylogeny
- mapping
- equipment
- methodology
- life cycle
- plant ecology
- population dynamics
- mortality
- phenology
- Library Collection RecordA lightweight aluminum photograph stand has been developed to record vegetation in permanent plots. At a camera height of 7 m the plot size is 14 m2 when using a 70 mm camera with an 80 mm lens.…Publication Date 1985-05-01
- mapping
- aerial photography
- plant communities
- semiarid zones
- rangelands
- Library Collection RecordThis material was digitized as part of a cooperative project between the Society for Range Management and the University of Arizona Libraries. The Journal of Range Management archives are made…Publication Date 1950-04-01
- mapping
- Army
- Yakima
- Fort Lewis
- Preflight
- Flight
- Time Vegetation
- lines
- Inaccesible Areas
- Stockwatering
- photographs
- Preparation
- Site Classification
- Aerial
- Soil Conservation Service
- land management
- helicopter
- fences
- soil
- advantages
- Disadvantages
- range condition
- grazing
- Washington
- Library Collection RecordThis material was digitized as part of a cooperative project between the Society for Range Management and the University of Arizona Libraries. The Journal of Range Management archives are made…Publication Date 1954-09-01
- Rewards
- rangeland management
- Wildland Managers
- Skill
- botany
- Mathematics
- Physics
- Zoology
- Field Training
- Surveying
- mapping
- Language
- Preparation
- subject matter
- knowledge
- Chemistry
- college
- Profession
- animal husbandry
- science
- soils
- plants
- education
- training
- Library Collection RecordABSTRACT South Africa's first national assessment of spatial priorities for biodiversity conservation, released in 2005, aimed to identify conservation priority areas for mainstreaming into all…Publication Date 2007
- National Spatial Biodiversity Assessment
- conservation planning
- mainstreaming
- Implementation
- biodiversity
- conservation
- mapping
- ecosystem ecology
- ecosystems
- monitoring
- Africa
- Library Collection RecordAims Mapping vegetation through remotely sensed images involves various considerations, processes and techniques. Increasing availability of remotely sensed images due to the rapid advancement of…Publication Date 2008
- vegetation mapping
- remote sensing sensors
- image processing
- image classification
- mapping
- remote sensing
- Africa
- Library Collection RecordAlthough a variety of hierarchical image segmentation procedures for remote sensing imagery have been published, none of them specifically integrates remote sensing time series in spatial or…Publication Date 2008
- Hierarchical image segmentation
- Fast Fourier transform
- NDVI time series
- vegetation mapping
- mapping
- remote sensing
- ecosystem dynamics
- ecology
- Africa
- Library Collection RecordIn South Africa, formal titles to land have generally been restricted to 'commercial' farms under white ownership. However, in Namaqualand in the Northern Cape Province, mapping of…Publication Date 2008
- mapping
- Formalisation
- Land rights
- communal rangeland
- South Africa
- Africa
- Library Collection RecordThere is an urgent need for quantitative methods by which actual, as opposed to potential degradation can be mapped using spatially consistent criteria for large regions. This study tested the Local…Publication Date 2008
- AVHRR
- Communal lands
- desertification
- Local NPP scaling
- rangelands
- South Africa
- communal farming
- remote sensing
- degradation
- mapping
- Africa
- Library Collection RecordKey resource areas (KRAs), defined as dry season foraging zones for herbivores, were studied relative to the more extensive outlying rangeland areas (non-KRAs) in Kenya. Field surveys with…Publication Date 2008
- drought
- forage
- foraging
- herbivore
- Pastoralist
- rangeland
- Satellite
- topography
- rangelands
- foraging ecology
- mapping
- ecosystem ecology
- landscape ecology
- soils
- monitoring
- conservation
- decision support systems
- Africa
- Library Collection RecordAdvanced Very High Resolution Radiometer (AVHRR), Normalized Difference Vegetation Index data (NDVI, 1 km2, 1985-2003) and modeled net primary production (NPP, 8 km2, 1981-2000) data were used to…Publication Date 2007
- monitoring
- AVHRR
- NDVI
- rain-use efficiency
- NPP
- Communal lands
- South Africa
- degradation
- land use
- remote sensing
- NDVI values
- mapping
- rainfall
- Africa
- Library Collection RecordRemote sensing has successfully been applied to map the distribution of canopy dominating invasive species. Many invaders however, do not dominate the canopy, and remote sensing has so far not been…Publication Date 2006
- remote sensing
- GIS
- Chromolaena odorata
- seed production
- light intensity
- invasive species
- mapping
- Alien invasive species
- Landsat images
- grazing
- biological control
- Africa
- Library Collection RecordOne of the many contentious issues facing the appropriate and accurate assessment of land degradation is the varying emphasis placed on vegetation degradation and soil degradation processes. This has…Publication Date 2006
- vegetation degradation
- soil degradation
- remote sensing
- land use
- Land cover
- Tanzania
- degradation
- Soil Condition
- mapping
- rainfall
- management
- Africa
- Library Collection RecordWe present a remote sensing based vegetation mapping technique well suited to a heterogeneous, semi-arid environment. 10 structural vegetation classes were identified and described on the ground.…Publication Date 2000
- remote sensing
- mapping
- Landsat images
- rangelands
- disturbance
- rangeland condition
- Africa
- Library Collection RecordQuestions: What are the patterns of remotely sensed vegetation phenology, including their inter-annual variability, across South Africa? What are the phenological attributes that contribute most to…Publication Date 2011
- Phytosociology
- AVHRR
- Biomes
- NDVI
- net primary production
- phenology
- Regression tree
- vegetation mapping
- mapping
- remote sensing
- plant production
- rainfall
- diversity
- South Africa
- Library Collection RecordAbstract. Various attempts have been made to describe and map the vegetation of southern Africa with recent efforts having an increasingly ecologi cal context. Vegetation classification is usually…Publication Date 2004
- biome
- GIS
- NDVI
- satellite imagery
- Time series analysis
- Vegetation classification
- remote sensing
- mapping
- ecology
- ecosystem ecology
- Africa
- Library Collection RecordABSTRACT Most national or regional initiatives aimed at managing biological invasions lack objective protocols for prioritizing invasive species and areas based on likely future dimensions of spread…Publication Date 2004
- Bioclimatic modelling
- biological invasions
- Mahalanobis distance
- predictive models
- spatial distribution
- Working for Water programme
- climate
- mapping
- Alien invasive species
- management
- Africa
- Library Collection RecordAim In the framework of the Global Land Cover 2000 (GLC 2000), a land-cover map of Africa has been produced at a spatial resolution of 1 km using data from four sensors on-board four different Earth…Publication Date 2004
- Africa
- Land cover
- mapping
- remote sensing
- landscape ecology
- Africa
- Library Collection RecordPredicting the probability of successful establishment of plant species by matching climatic variables has considerable potential for incorporation in early warning systems for the management of…Publication Date 2005
- Bioclimatic modelling
- biological invasions
- exotic species
- Invasive alien species
- plant invasions
- prediction
- propagule pressure
- risk assessment
- management
- Alien invasive species
- hazard assessment
- modelling
- biodiversity
- mapping
- climate
- ecosystems
- Africa
- Library Collection RecordQuestion The co-existence of woody plants and grasses characterize savannas, with the horizontal and vertical spatial arrangement of trees creating a heterogeneous biotic environment. To understand…Publication Date 2014
- Carnegie Airborne Observatory
- heterogeneity
- LiDAR
- Object-based image classification
- vegetation structure
- woody vegetation
- savanna
- remote sensing
- biodiversity
- conservation
- mapping
- management
- monitoring
- vegetation analysis
- Sabi Sand Wildtuin and Kruger National Park
- Mpumalanga province
- South Africa
- Library Collection RecordSummary * 1The success of large-scale cattle ranching in African savanna vegetation has often been limited by problems of bush encroachment and disease (in particular trypanosomiasis spread by tsetse…Publication Date 2003
- Bush encroachment
- East Africa
- grazing patterns
- Landsat TM
- remote sensing
- Vegetation classification
- indigenous encroaching species
- shrub encroachment
- cattle
- savanna
- commercial agriculture
- vegetation dynamics
- grazing
- mapping
- Landsat images
- Economic Aspects
- Africa
- Library Collection RecordA set of global greenhouse gas emission inventories has been compiled per source category for the 1990 annual emissions of the direct greenhouse gases CO2, CH4 and N2O, as well as of the indirect…Publication Date 1999
- global
- emissions
- inventory
- carbon dioxide
- Methane
- nitrous oxide
- Greenhouse gas
- sources
- Country
- Sectors
- greenhouse gases
- mapping
- climate change
- Africa
- Library Collection RecordCriteria and indicators (C&I) have become primary tools in implementing the principle of sustainable resource management. To carry out this principle, it is necessary to develop methodologies…Publication Date 2003
- sustainability
- Multi-criteria analysis
- Criteria and indicators
- Cognitive mapping
- management
- decision support systems
- mapping
- Africa
- Library Collection RecordQuestions as to whether public investment in international agricultural research is a [`]Good Thing' or not may best be addressed using two arguments: (1) justifications based on whether or not…Publication Date 2003
- livestock
- System
- classification
- mapping
- animal production
- economics
- agriculture
- subsistence agriculture
- Africa
- Library Collection RecordThe Universal Soil Loss Equation (USLE) was used to predict soil erosion hazard in the Upper Ewaso Ng'iro North basin of Kenya using data from erosion plots and reconnaissance surveys. The R-…Publication Date 2000
- soil erosion hazard assessment
- USLE
- GIS
- Kenya
- Upper Ewaso Ng'iro basin
- erosion
- rainfall
- conservation
- mapping
- hazard assessment
- Africa
- Library Collection RecordThis paper examines variation in local perceptions of risk in semi-arid Tanzania, identifying factors that influence local perceptions of problems and testing the feasibility of risk mapping as a…Publication Date 2003
- Africa
- agriculture
- Gender
- pastoralism
- Sustainable development
- water
- socio-economic aspects
- household income studies
- mapping
- Africa
- Library Collection RecordTransitions from grassland to shrubland through woody plant encroachment result in potentially significant shifts in savanna ecosystem function. Given high resolution imagery, a textural index could…Publication Date 1998
- grasslands
- ecosystem dynamics
- indigenous encroaching species
- management
- mapping
- remote sensing
- Landsat images
- Africa
- Library Collection RecordSurface temperature (Ts), air temperature (Ta), atmospheric precipitable water (U), and vapor pressure deficit (D) have been derived from algorithms that use satellite observations of visible, near…Publication Date 1998
- environmental factors
- remote sensing
- savanna
- agriculture
- mapping
- Africa
- Library Collection RecordWe review various recent approaches to making digital soil maps based on geographic information systems (GIS) data layers, note some commonalities and propose a generic framework for the future. We…Publication Date 2003
- Soil map
- soil survey
- Digital map
- classification tree
- DEM
- DTM
- GAM
- Generalised linear model
- Geophysics
- geostatistics
- GIS
- Neural network
- Pedometrics
- Pedotransfer function
- Regression tree
- remote sensing
- Soil spatial prediction function
- Wavelets
- soils
- modelling
- mapping
- Africa
- Library Collection RecordUsing normalized difference vegetation index (NDVI) imagery, we examined changes in vegetative cover across Tanzania and found that overall greenness increased over 13 years from 1982 to 1994. We…Publication Date 2000
- Habitat change
- NDVI
- protected areas
- Tanzania
- Vegetative greenness
- NDVI values
- mapping
- satellite imagery
- remote sensing
- vegetation dynamics
- management
- land use
- degradation
- Africa
- Library Collection RecordVegetation mapping of plant communities at fine spatial scales is increasingly supported by remote sensing technology. However, combining ecological ground truth information and remote sensing…Publication Date 2010
- cluster analysis
- Redundancy analysis
- Multivariate
- Supervised fuzzy c-means
- semiarid
- rangelands
- Namibia
- imaging spectroscopy
- remote sensing
- mapping
- vegetation dynamics
- Namibia
- Africa
- Library Collection RecordSavanna covers about two-thirds of Africa, with forage quantity and quality being important factors determining the distribution and density of wildlife and domestic stock. Testing hypotheses about…Publication Date 2010
- forage
- quality
- remote sensing
- hyperspectral
- herbivory
- Foliar
- nitrogen
- protein
- Polyphenol
- mopane
- savanna
- forage quality
- Forage Quantity
- livestock
- mapping
- management
- land use
- Africa
- Library Collection RecordDegradation of vegetation and soils in drylands, sometimes called desertification, is thought to be a serious threat to the sustainability of human habitation, but maps of the extent and severity of…Publication Date 2009
- dryland degradation
- desertification
- Communal land
- net primary production (NPP)
- Local NPP scaling (LNS)
- MODIS
- sustainability
- mapping
- degradation
- communal farming
- plant production
- Zimbabwe
- Africa
- Library Collection RecordFire is a prominent disturbance factor and a major force of environmental change especially in the African savannas. The development of an accurate system to map and monitor fires on the African…Publication Date 2005
- Savanna fires
- Low-resolution bias
- Burned-area mapping
- Seasonal-mosaic
- Africa
- savanna
- fire
- remote sensing
- mapping
- Africa
- Library Collection RecordThe remote sensing of Earth surface changes is an active research field aimed at the development of methods and data products needed by scientists, resource managers, and policymakers. Fire is a…Publication Date 2005
- fire
- Fire-affected area
- Burned area
- change detection
- BRDF
- MODIS
- Time series
- remote sensing
- mapping
- modelling
- Africa
- Library Collection RecordA new integrated approach, involving continuum-removed absorption features, the red edge position and neural networks, is developed and applied to map grass nitrogen concentration in an African…Publication Date 2004
- Hymap imagery
- Absorption features
- Continuum removal
- red edge position
- Foliar nitrogen concentration
- Savanna rangelands
- savanna
- rangelands
- mapping
- plant production
- grasslands
- forage quality
- remote sensing
- conservation
- national parks
- Africa
- Library Collection RecordSpatial technologies present possibilities for producing frequently updated and accurate habitat maps, which are important in biodiversity conservation. Assemblages of vegetation are equivalent to…Publication Date 2010
- biodiversity conservation
- habitat mapping
- remote sensing
- soil fertility
- conservation
- biodiversity
- mapping
- satellite imagery
- national parks
- South Africa
- Library Collection RecordThe Global Assessment of Soil Degradation (GLASOD) has been the most influential global appraisal of land quality in terms of environmental policy. However, its expert judgments were never tested for…Publication Date 2009
- GLASOD
- land degradation
- Expert judgment
- Qualitative response model
- Non-parametric analysis
- Soil Condition
- degradation
- environmental impact
- GIS
- land use
- mapping
- crop production
- Africa
- Library Collection RecordThe study investigates the vulnerability of vegetation over Africa to El-Niño Southern Oscillation (ENSO) events using the moving window statistical correlation analysis technique. The correlation…Publication Date 2010
- El-Niño
- remote sensing
- Vegetation vulnerability
- NDVI values
- monitoring
- hazard assessment
- drought
- mapping
- Africa
- Library Collection RecordSpatially explicit land use/cover models are indispensable for sustainable rural land use planning, particularly in southern African countries that are experiencing rapid land use/cover changes.…Publication Date 2009
- Land use/cover change
- Multicriteria evaluation (MCE)
- Multi-objective land allocation (MOLA)
- Markov-cellular automata model
- land use
- modelling
- remote sensing
- mapping
- degradation
- rural areas
- Zimbabwe
- Africa