Rangeland Ecology & Management
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- Library Collection RecordThe temporal and spatial distribution of African savanna grassland fires has been examined, and the areal extent of these fires has been estimated for the subequatorial African continent. African…Publication Date 1994
- grasslands
- fire ecology
- GIS
- modelling
- Africa
- Library Collection RecordNOAA-6 and NOAA-7 Advanced Very High Resolution Radiometer (AVHRR) global-area coverage (4 km ground resolution) data were obtained at three-day intervals throughout each of the four-month periods…Publication Date 1987
- remote sensing
- NOAA
- rainfall
- drought
- modelling
- Africa
- Library Collection RecordRangeland areas are characterized by sparse and limited hydrological data that make the use of existing mathematical runoff models difficult and impractical. A simple rational mathematical model was…Publication Date 1989
- Runoff modeling
- Hydrological modeling
- Runoff simulation
- Snowmelt modeling
- rangeland hydrology
- modelling
- rainfall
- rangelands
- runoff
- Africa
- Library Collection RecordCows are important agents of geomorphological change. On the uplands, heavy grazing compacts the soil, reduces infiltration, increases runoff, and increases erosion and sediment yield. However, light…Publication Date 1995
- cattle
- ecosystem dynamics
- Soil Condition
- runoff
- soil erosion
- grazing
- modelling
- Africa
- Library Collection RecordIn 1989, the opportunity was identified to create a botanical map series which could be used by authorities to make informed decisions and which would highlight the potential impact significance of…Publication Date 1996
- mapping
- conservation
- vegetation
- Coast
- South Africa
- development
- GIS
- management
- Africa
- Library Collection RecordA multiple-source surface energy balance model for use in general circulation models (GCMs) is developed. The model recognizes three biome architectures: closed canopies (e.g. forest), biomes with…Publication Date 1993
- ecology
- modelling
- soils
- agriculture
- Africa
- Library Collection RecordPartitioning available energy between plants and bare soil in sparsely vegetated rangelands will allow hydrologists and others to gain a greater understanding of water use by native vegetation,…Publication Date 1992
- rangelands
- hydrology
- ecosystem ecology
- modelling
- Africa
- Library Collection RecordVegetative cover affects the spatial and temporal variability of heat and water in the soil. The ability to predict temperature and water conditions enhances our ability to evaluate management…Publication Date 1991
- modelling
- soils
- ecosystem dynamics
- ecosystem ecology
- Africa
- Library Collection RecordThe numbers of dead cattle in 1977/1978-1985/1986, expressed as a percentage of the total cattle numbers, for six regions in Botswana and for the country as a whole, were analysed as a function of a…Publication Date 1990
- cattle
- water use efficiency
- drought
- rainfall
- modelling
- soil moisture
- Africa
- Library Collection RecordPasture production not only depends on precipitation amount and distribution patterns, but also on soil type and evaporative demand. The simulation model of Rose et al., developed using improved…Publication Date 1987
- pasture management
- fertilizer
- rainfall
- soil classification
- modelling
- Africa
- Library Collection RecordGrassland burning elicits a diverse array of responses by arthropods, depending upon many interactive factors. Empirical models were developed, based on the literature, to qualitatively order…Publication Date 1987
- grasslands
- fire ecology
- insects
- modelling
- ecosystem ecology
- Africa
- Library Collection RecordRemote sensing applications used for resource assessment often lack the capacity to test image data against predictions. This article describes remote environment and management assessment (REMA), a…Publication Date 1995
- remote sensing
- Landsat images
- rangelands
- animal impact
- fodder production
- modelling
- Africa
- Library Collection RecordThis article is the continuation of a study of the relationship between NDVI and rainfall in semiarid Botswana. That study notes significant differences in the NDVI-rainfall relationship for various…Publication Date 1994
- modelling
- NDVI values
- rainfall
- soils
- Africa
- Library Collection RecordSpatial dependence is a fundamental structure of spatial data that can be readily measured. Change in landscapes can be monitored effectively using measures of spatial dependence. Scale of…Publication Date 1993
- grasslands
- grazing
- modelling
- Landsat images
- remote sensing
- Africa
- Library Collection RecordThe literature suggests that two different approaches have been applied to problems of rangeland monitoring using MSS data. These are referred to as the near infrared over red ratio which has been…Publication Date 1987
- remote sensing
- rangeland condition
- savanna
- modelling
- Africa
- Library Collection RecordLandsat data were simulated for a three-component rangeland scene consisting of grass, brush, and soil to evaluate the effect of soil background reflectance on the sensitivity of ratio and orthogonal…Publication Date 1986
- Landsat images
- rangelands
- soil
- modelling
- Africa
- Library Collection RecordThis paper presents results of a deforestation experiment carried out with the general circulation model of the Laboratoire de Météorologie Dynamique coupled to the Schématisation des Echanges…Publication Date 1994
- modelling
- land use
- environmental factors
- soils
- soil moisture
- grasslands
- Africa
- Library Collection RecordFour deterministic rainfall-runoff models are briefly described and applied to a small (0.18 km2) grassland catchment in the Eastern Cape Province of South Africa. The models vary in complexity, from…Publication Date 1994
- rainfall
- runoff
- soil erosion
- grasslands
- modelling
- Africa
- Library Collection RecordThe advantages of incorporating variable length time steps into deterministic hydrological models are discussed and a method based on the use of rainfall thresholds to determine appropriate length…Publication Date 1993
- hydrology
- rainfall
- modelling
- grasslands
- Africa
- Library Collection RecordIn this paper, the second part of a two-part series, the performance of a quasi-physically based rainfall-runoff model (QPBRRM) is evaluated for a set of 39 events from a small rangeland catchment (R…Publication Date 1992
- rainfall
- runoff
- rangelands
- soil moisture
- modelling
- ecology
- Africa
- Library Collection RecordThis paper, the first part in a two-part series, is concerned with the interpretation of spatial and temporal variations in soil water content across a small rangeland catchment; two data sets are…Publication Date 1992
- rainfall
- runoff
- rangelands
- soil moisture
- modelling
- Africa
- Library Collection RecordA model for estimating soil water content on native rangeland was tested at Sidney, Montana. Based on the Penman combination method for estimating potential ET, the model includes factors to account…Publication Date 1973
- modelling
- soils
- rangeland
- plant production
- management
- Africa
- Library Collection RecordWe analyzed data sets on phytomass production, basal cover, and monthly precipitation of a semiarid grassland in South Africa for good, medium, and poor rangeland condition (a) to investigate whether…Publication Date 2004
- grasslands
- plant production
- rainfall
- rangeland condition
- modelling
- biomass
- Africa
- Library Collection RecordDetailed reconstructions of vegetation structure are critical to understanding morphological and behavioral adaptations of Plio-Pleistocene African hominids. Savanna grassland habitats are often…Publication Date 1997
- bovid
- vegetation
- grasslands
- bipedality
- savanna
- palaeobotany
- Africa
- Library Collection RecordWe examined the relationship between a Chihuahuan Desert grassland keystone species (banner tailed kangaroo rat, Dipodomys spectabilis) and several vegetation and soil indicators of rangeland health…Publication Date 2002
- banner-tailed kangaroo rat
- Chihuahuan Desert
- desertification
- Dipodomys spectabilis
- Environmental indicators
- degradation threshold
- grasslands
- degradation
- decision support systems
- modelling
- Africa
- Library Collection RecordAs stated by many authors in the recent past, soil erosion is one of the major environmental problems in southern Africa and it will become even more severe in the future due to population growth and…Publication Date 2003
- remote sensing
- degradation
- Erosion modelling
- Swaziland
- modelling
- soil erosion
- grasslands
- Africa
- Library Collection Record1. Plant-plant interactions are known to vary with changing environmental conditions; however, we have little empirical knowledge of the impact of abrupt environmental changes on millennial scale…Publication Date 2011
- climate change
- palaeoecology
- management
- grasses
- modelling
- community dynamics
- ecosystem changes
- abrupt climate change
- alternative stable states
- community dynamics
- competition
- facilitation
- fire
- herbivore density
- nitrogen availability
- plant population
- Tree-grass coexistence
- England
- Library Collection Record1.?Matrix population models capture how variation in vital rates among life stages translates to population dynamics. Analyses of these models generally assume that populations have reached a stable…Publication Date 2011
- modelling
- conservation
- community dynamics
- ecosyetem ecology
- matrix model
- plant demography
- plant population and community dynamics
- population growth rate
- population projection
- projection distance
- stable stage distribution
- transient dynamics
- Library Collection RecordSeveral studies have demonstrated that seed mass is related to different environmental factors. However, they have taken no account of the joint effects of spatial and phylogenetic information. We…Publication Date 2013
- Elevational gradient
- Phylogenetic autocorrelation
- soil pH
- soil fertility
- spatial autocorrelation
- temperature
- seeds
- grasslands
- climate
- soils
- modelling
- land use
- southern Alps
- Library Collection Record1. Spatially explicit understanding of the delivery of multiple ecosystem services (ES) from global to local scales is currently limited. New studies analysing the simultaneous provision of multiple…Publication Date 2011
- of plant community diversity and structure
- ecosystem services
- functional trade-offs
- landscape modelling
- mountain grassland management
- plant functional traits
- management
- grassland
- modelling
- ecosystem services
- policy
- land use
- grassland
- ecosystem ecology
- biodiversity
- plant functional traits
- Central French Alps
- Europe
- Library Collection RecordThis text reviews the assessments of marginal abatement costs of methane and nitrous oxide emissions from agriculture. We use agricultural emissions and the corresponding prices collected from 21…Publication Date 2010
- greenhouse gas emissions
- agriculture
- Abatement costs
- Meta-regression analysis
- Methane
- nitrous oxide
- greenhouse gases
- Economic Aspects
- modelling
- Library Collection RecordOn the main Japanese island of Honshu, bark or sawdust is often added to cattle excreta as part of the composting process. Dairy farmers sometimes need to dispose of manure that is excess to their…Publication Date 2011
- grasslands
- Compost
- Methane
- nitrous oxide
- greenhouse gases
- climate change
- global warming
- soils
- ANOVA
- modelling
- Honshu
- Japan
- Library Collection Record1. Attempts to infer underlying ecological process from observed patterns in ecology have been widespread, but have generally relied on first-order (non-spatial) community characteristics such as the…Publication Date 2011
- ecosystem ecology
- species abundance
- modelling
- coexistence mechanisms
- determinants of plant community diversity and structure
- heteromyopia
- Janzen-Connell
- lottery
- Neutral
- niche
- pair correlation function
- spatial point pattern
- species abundance distribution
- Library Collection RecordA simulation model was used to determine the ecological and economic consequences of managing stocking rate on semi-arid savanna rangeland continuously stocked with livestock to achieve the alternate…Publication Date 2009
- continuous grazing
- ranching systems
- range condition
- semi-arid
- stocking rates
- sustainability
- Economic Aspects
- grazing
- savanna
- rangeland condition
- management
- rainfall
- indigenous encroaching species
- animal production
- modelling
- plant production
- Library Collection RecordReserve site selection models can be enhanced by including habitat conditions that populations need for food, shelter, and reproduction. We present a new population protection function that…Publication Date 2013
- Reserve design
- Life history-based protection
- Spatial optimization
- 0-1 Programming
- conservation
- planning
- management
- ecosystem ecology
- modelling
- Lopez Island
- United States
- Library Collection RecordQuestion: Can we predict the spatial distribution of plant communities in semi-arid rangelands based on a limited set of environmental variables? Where are priority areas for conservation located?…Publication Date 2011
- CT-model
- Decision tree classifier
- grazing intensity
- Juniperus excelsa woodlands
- rangelands
- ecosystem ecology
- mapping
- conservation ecology
- grazing
- modelling
- agriculture
- Al Jabal al Akhdar
- Arabia
- Library Collection RecordQuestions: Does vegetation structure display any stability over the grazing season and in two successive years, and is there any correlation between the stability of these spatial patterns and local…Publication Date 2011
- Boolean process
- cattle
- functional diversity
- patch stability
- Semi-variograms
- Spatially explicit model
- stocking rate
- grazing
- cattle
- grassland
- modelling
- releves
- vegetation dynamics
- management
- Massif Central
- France
- Library Collection Record1. Projection matrices have become the dominant modelling approach in plant demography because they (i) are relatively easy to formulate, (ii) compile complex data in a structured and analytically…Publication Date 2010
- vegetation dynamics
- modelling
- demographic buffering
- integral projection model
- plant demography
- population dynamics
- projection matrix
- stochastic elasticity
- stochastic life table response experiment (SLTRE)
- transient dynamics
- Library Collection RecordIn many areas of Europe there are policies to restore former arable land to grassland. In practice, this usually involves the use of commercial seed mixtures. The abundance of all vascular plants…Publication Date 2011
- restoration ecology
- management
- agriculture management
- grassland
- rate of succession
- species pool
- vegetation
- Czech Republic
- Library Collection RecordThe recognition that a system can appear resilient to changes in the environment, only to reach a critical threshold of rapid and unexpected change, is spurring work to apply threshold models in…Publication Date 2009
- restoration ecology
- conservation
- management
- modelling
- decision support systems
- Library Collection RecordSoil carbon stocks (SCSs) in an upland area of Tokachi District, Hokkaido, Japan, were estimated by satellite remote sensing and a soil survey. The soil parent materials in the studied area were…Publication Date 2011
- soil carbon
- remote sensing
- modelling
- soils
- Carbon Sink
- Hokkaido
- Japan
- Library Collection RecordWildfires are a serious problem affecting many terrestrial ecosystems and causing substantial economic damage. Understanding the variation in structure of fuels (which are predominantly represented…Publication Date 2009
- fire ecology
- Terrestrial ecosystem
- Fuel structure
- vegetation
- plant litter
- Object oriented database
- Fuel modeling
- Fuel succession
- Fuel manager
- modelling
- management
- Library Collection RecordLarge-scale (circa 500 ha) restoration of species-rich dry grasslands was conducted using a high-diversity regional seed mixture in the White Carpathians Protected Landscape Area and Biosphere…Publication Date 2013
- grassland restoration
- regional seed mixture
- species diversity
- target species
- vegetation
- restoration ecology
- grasslands
- seeds
- vegetation dynamics
- mowing
- White Carpathians Protected Landscape Area and Biosphere Reserve
- Czech Republic
- Central Europe
- Library Collection RecordThe development of models of the relationship between biodiversity and ecosystem function (BEF) has advanced rapidly over the last 20 years, incorporating insights gained through extensive…Publication Date 2013
- modelling
- biodiversity
- ecosystem ecology
- Ecosystem function
- species richness
- species composition
- Library Collection RecordSmoke from wildfires has adverse biological and social consequences, and various lines of evidence suggest that smoke from wildfires in the future may be more intense and widespread, demanding that…Publication Date 2014
- modelling
- management
- ecosystem ecology
- climate change
- smoke transport
- feedbacks
- coupled models
- Library Collection RecordSavannas are ecosystems characterized by the coexistence of woody species (trees and bushes) and grasses. Given that savanna characteristics are mainly formed from competition, herbivory, fire,…Publication Date 2009
- Spatially explicit
- soil moisture
- Cyclical transition
- Arid
- Mesic
- spatial autocorrelation
- shrub invasion
- Vegetation cycles
- Tree
- Bush
- grasslands
- savanna
- modelling
- vegetation dynamics
- animal impact
- fire ecology
- Soil Condition
- rainfall
- Library Collection RecordWe developed a method for predicting the total cadmium (Cd) concentration [CdT] in soil solution. Disregarding minor ion pairs, [CdT] was approximated by . We assumed that Cd2+ activity (Cd2+) is…Publication Date 2011
- cadmium
- soils
- toxicity
- pollution
- modelling
- Library Collection RecordQuestions How do fragment-level characteristics affect remnant grassland functioning in a highly transformed landscape? Are artificial neural networks (ANNs) a better statistical tool to model…Publication Date 2013
- Enhanced vegetation index
- fragmentation
- Landscape structure
- MODIS data
- neural networks
- Paspalum quadrifarium
- Tall-tussock grassland
- grassland
- Ecosystem function
- ecosystem ecology
- modelling
- soils
- Tandilia Range
- Southern Pampa
- Buenos Aires Province
- Argentina
- Library Collection RecordDecision support tools to help dairy farmers gain confidence in grazing management need to be able to predict performance of grazing animals with easy-to-obtain variables on farm. This paper, the…Publication Date 2011
- GrazeIn
- management
- animal production
- grazing
- dairy cow
- intake
- modelling
- sward availability
- time at pasture
- roational grazing
- Library Collection RecordDecision-making for conservation management often involves evaluating risks in the face of environmental uncertainty. Models support decision-making by (1) synthesizing available knowledge in a…Publication Date 2013
- communication
- conservation
- modelling
- structured decision-making
- trust
- uncertainty
- management