Rangeland Ecology & Management
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Displaying 101 - 150 of 164 results
- Library Collection RecordMany external effects of land use change are based on modifications of lateral flows of soil, water, air, fire or organisms. Lateral flows can be intercepted by filters and thus the severity and…Publication Date 2004
- biodiversity
- Filters
- fire
- Lateral flows
- Scale effects
- Watershed functions
- land use
- policies
- fire ecology
- species richness
- vegetation dynamics
- stakeholders
- hydrology
- management
- decision support systems
- Africa
- Library Collection RecordClimate, topography, vegetation and land use interact to influence fire regimes. Variable fire regimes may promote landscape heterogeneity, diversification in vegetation pattern and biotic diversity…Publication Date 2004
- Botswana
- Fire exclusion
- fire management
- Landsat
- landscape heterogeneity
- Landscape metric
- Patch characteristic
- prescribed fire
- Principal components analysis
- South Africa
- land use
- fire
- fire ecology
- grasslands
- climate
- vegetation dynamics
- biodiversity
- ecology
- Africa
- Library Collection RecordSavanna grass cover is dynamic and its annual extent resonates with wet season rainfall, as shown by satellite observations of normalized difference vegetation index (NDVI) time series for the…Publication Date 2005
- savanna
- precipitation
- Satellite
- NDVI
- grass
- ecohydrology
- rainfall
- NDVI values
- vegetation dynamics
- soil moisture
- modelling
- grasslands
- Africa
- Library Collection RecordLandscapes commonly comprise of mosaics, patches and boundaries. Riparian boundaries are complex to delineate and characterize, with a multitude of variables available for delineation. Multiple…Publication Date 2009
- Boundary
- vegetation
- Delineation
- Kruger National Park
- national parks
- vegetation dynamics
- ecology
- Kruger National Park
- South Africa
- Library Collection RecordAn analysis tool was developed to simulate primary productivity and crop yields for both present and possible future climate conditions. Southern Africa was delineated into 712 relatively homogeneous…Publication Date 1993
- plant production
- agriculture
- climate change
- soil
- vegetation dynamics
- hydrology
- modelling
- GIS
- rainfall
- socio-economic aspects
- policies
- food security
- Africa
- Library Collection RecordUse of Landsat vegetation indices (combinations of spectral bands) to measure standing crop biomass production in rangelands is addressed. The theoretical basis for vegetation indices is briefly…Publication Date 1983
- remote sensing
- Landsat images
- rangelands
- drought
- vegetation dynamics
- Africa
- Library Collection RecordIn the process of dredge mining, employed since 1977 on the Zululand coast, heavy minerals are extracted from the dunes after the complete removal of the existing vegetation. The tailings are then…Publication Date 1996
- Post-mining
- rehabilitation
- Dunes
- Zululand
- South Africa
- mine rehabilitation
- restoration ecology
- vegetation dynamics
- data analysis
- species richness
- Africa
- Library Collection RecordCompared with monospecies stocking, numerous studies substantiate that multispecies stocking can efficiently increase use within and among the mosaic pattern of rangeland plant life forms. However,…Publication Date 1990
- rangeland
- livestock
- management
- diet selection
- foraging ecology
- cattle
- sheep
- vegetation dynamics
- Africa
- Library Collection RecordSatellite imaging systems do not produce images that are in perfect planimetric accord with the Earth's surface, nor do the images coincide with the deliberately distorted geometrics of various…Publication Date 1987
- satellite imagery
- image registration
- vegetation monitoring
- remote sensing
- drought
- management
- vegetation dynamics
- Africa
- Library Collection RecordNo abstract availablePublication Date 1991
- revegetation
- rangelands
- ecology
- vegetation dynamics
- Africa
- Library Collection RecordThe effect of intensive grazing and browsing of domestic stock and wildlife on the number of species and abundance of vegetation was investigated in the Hoanib River catchment, north-western Namibia…Publication Date 2003
- vegetation impact
- Arid Environment
- intensive grazing
- ecosystem ecology
- vegetation dynamics
- grasslands
- grazing
- livestock
- wildlife
- land use
- drought
- Africa
- Library Collection RecordThe numbers of livestock and wildlife that can be supported in an arid environment such as the Hoanib River catchment, north-western Namibia, are determined by annual and seasonal availability of…Publication Date 2003
- Non-equilibrium system
- vegetation assessment
- Arid Environment
- vegetation dynamics
- ecosystem ecology
- livestock
- wildlife
- grazing
- rainfall
- land use
- piosphere
- Africa
- Library Collection RecordPlant and bird species richness and abundance in two patches of native Acacia karroo and two patches of alien Prosopis species drainage line woodland in the southern Kalahari, South Africa, were…Publication Date 2002
- invasive plants
- Arid savanna
- Woodland structure
- bird communities
- diversity
- biodiversity
- vegetation dynamics
- Africa
- Library Collection RecordThis study examined the short-term response of rangeland to annual (1993/94 to 1996/97 seasons) application of fertilizer [all combinations of 0; 10; 30 and 50 kgha-1nitrogen (N), with 0 and 10 kgha…Publication Date 2002
- aboveground phytomass production
- drought sensitivity
- Crude Protein Content
- nitrogen
- nutrient use efficiency
- phosphorus
- rain-use efficiency
- soil compaction
- rangelands
- fertilizer
- plant production
- species richness
- Soil Condition
- vegetation dynamics
- soil fertility
- Africa
- Library Collection RecordThe investigation was conducted on an area covered by a dense stand of Hardwickia mopane (Leguminosae: Caesalpinioideae). Seven plots (65x180 m) were subjected to different intensities of tree…Publication Date 2000
- Bush encroachment
- competition
- evapotranspiration
- infiltration
- Hardwickia mopane
- rainwater runoff
- water use efficiency.
- indigenous encroaching species
- soil moisture
- degradation
- soil erosion
- savanna
- vegetation dynamics
- Africa
- Library Collection RecordWe present a remotely-sensed degradation assessment technique based on the measurement of landscape heterogeneity (a key determinant of degradation status). The moving standard deviation index (MSDI…Publication Date 1999
- rangelands
- remote sensing
- NDVI values
- landscape heterogeneity
- Landsat TM
- Landsat images
- landscape ecology
- disturbance
- vegetation dynamics
- Africa
- Library Collection RecordThe debate about the sustainability and productivity of communal lands, especially in comparison with privately managed land, is far from settled. Emerging theories emphasize the spatial and temporal…Publication Date 2000
- Vegetation Change
- vegetation diversity
- semi-arid
- southern Africa
- agropastoralism
- land use
- overgrazing
- Bush encroachment
- soil
- biodiversity
- vegetation dynamics
- indigenous encroaching species
- sustainability
- management
- plant production
- rangeland condition
- rainfall
- Africa
- Library Collection RecordSeasonal distribution of rainfall is thought to be important in structuring arid and semi-arid plant communities. Controlled studies of rainfall distribution have proven difficult, especially at the…Publication Date 1999
- Artemisia tridintata
- climate change
- rainout shelters
- precipitation distribution
- rainfall
- vegetation dynamics
- ecosystem ecology
- climate
- management
- Africa
- Library Collection RecordWatering points in the semi-arid Kruger National Park, Klaserie Private Nature Reserve, Cleveland Game Park and four game ranches in the Klaserie district were studied. Herbaceous community…Publication Date 2000
- rangeland condition
- watering points
- piosphere
- Kruger National Park
- national parks
- plant production
- Soil Condition
- stocking rates
- vegetation dynamics
- foraging ecology
- Africa
- Library Collection RecordThe objective of this study was to examine the impact of provision of perennial water supply, as a management strategy to enhance game viewing, on herbaceous vegetation. Changes in herbaceous species…Publication Date 1999
- Artificial water provision
- drought
- ecotourism
- herbivore impacts
- proximal polygons
- spatial dynamics
- temporal dynamics
- wildlife management
- savanna
- management
- piosphere
- animal impact
- species richness
- biodiversity
- vegetation dynamics
- Africa
- Library Collection RecordThe significance of encroacher woody plant browse (among other factors) in the composition of the diet of cattle was quantified for July 1996, March 1997 and September 1997. This is important because…Publication Date 1998
- woody encroachers
- woody plant browse
- carrying capacity
- communal rangelands
- crude protein
- D. cinerea
- G. flava
- forage quality
- Forage Quantity
- foraging ecology
- cattle
- grasslands
- grazing
- vegetation dynamics
- ecosystem dynamics
- Africa
- Library Collection RecordTwo pairs of a natural and an artificial watering point in each of the four largest land systems in the Kruger National Park, South Africa were randomly selected for study. The herbaceous community…Publication Date 1998
- piosphere
- grazing pressure
- watering points
- water provision
- Kruger National Park
- national parks
- ecosystem ecology
- vegetation dynamics
- rangeland condition
- degradation
- Africa
- Library Collection RecordThe gradual decline in the ecological condition of natural pastures as a result of over-utilization and the application of insufficient management decisions, coupled with the detrimental effects of…Publication Date 1997
- ecotype
- Digitaria eriantha
- Poaceae
- reclamation
- restoration
- arid grasslands
- restoration ecology
- rehabilitation
- grasslands
- management
- drought
- plant autecology
- rainfall
- vegetation dynamics
- seeds
- germination
- ecosystem ecology
- Africa
- Library Collection RecordRangeland ecologists, particularly those in North America, have traditionally worked with a paradigm founded on the notion of Clementsian succession. This is increasingly being called into question.…Publication Date 1997
- succession
- Climax
- Land Units
- Geomorphology
- environmental factors
- floristic
- physiognomic
- vegetation dynamics
- grazing
- management
- Africa
- Library Collection RecordThe percentage of phenolic containing cells (PCC) and total phenolics in the leaves of different ecotypes of three ecological important grass species were determined during cultivation under uniform…Publication Date 1995
- phenolic compounds
- ecotypes
- Themeda triandra
- Eragrostis racemosa
- Digitaria eriantha
- plant autecology
- vegetation dynamics
- rangeland condition
- Africa
- Library Collection RecordPlant facilitation (positive plant-plant interactions) strongly influences biodiversity, structure, and dynamics in plant communities, and the topic has received considerable attention among…Publication Date 2010
- Arid and semi-arid rangelands
- Habitat modification
- Resource balance hypothesis
- wind erosion
- rainfall
- rangeland condition
- rangelands
- erosion
- vegetation dynamics
- biodiversity
- grazing
- Mongolia
- China
- Library Collection RecordVariation in functional community composition is expected to influence the extent of exotic species invasions. Yet, whether resident functional groups control invasion through their relative biomass…Publication Date 2013
- biodiversity
- biotic resistance
- invasion ecology
- mass ratio hypothesis
- phenological niches
- rank abundance
- removal experiment
- subadditive effect
- grasslands
- Alien invasive species
- ecosystem ecology
- vegetation dynamics
- management
- Flooding Pampa grassland
- Argentina
- Library Collection RecordWe review the relevance and use of stable isotopes for the study of plant community succession. Stable isotope measurements provide information on the origin of resources acquired by plants, the…Publication Date 2011
- ecosystem ecology
- plant community
- succession
- isotypes
- soil nutrients
- soil organic matter
- vegetation dynamics
- biodiversity
- species richness
- fire ecology
- Library Collection RecordAbstract Several multi-year biodiversity experiments have shown positive species richness-productivity relationships which strengthen over time, but the mechanisms which control productivity are not…Publication Date 2013
- biomass production
- Community mean traits
- environmental filtering
- functional diversity
- niche differentiation
- Species identity
- biodiversity
- grasslands
- community analysis
- vegetation dynamics
- species richness
- plant production
- ecosystem ecology
- Thuringia
- Germany
- Library Collection RecordThe expected outcome of weed control in natural systems is that the decline of a dominant weed will result in an increase in diversity of the plant community but this has seldom been tested. Here we…Publication Date 2009
- Centaurea diffusa
- Larinus minutus
- weed biocontrol
- Invasive species treadmill
- ecological restoration
- Bromus spp.
- diversity
- biodiversity
- species richness
- Weeds
- insects
- Alien invasive species
- vegetation dynamics
- biological control
- restoration ecology
- White Lake
- British Columbia
- Canada
- 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. Climate change will cause changes in average temperature and precipitation as well as increased fluctuations around the mean, yet few studies have considered the impacts of altered climate…Publication Date 2010
- vegetation dynamics
- temperature
- rainfall
- vegetation dynamics
- ecosystem ecology
- climate change
- elasticity
- Life History
- matrix models
- mixed-grass prairie
- short-lived perennial
- stochastic demography
- Kansas
- USA
- Library Collection RecordLand degradation in drylands is one of the major environmental issues of the 21st century particularly due to its impact on world food security and environmental quality. Climate change, shifts in…Publication Date 2010
- drylands
- Ecogeomorphology
- land degradation
- sediment transport
- Vegetation patterns
- degradation
- climate change
- soil erosion
- vegetation dynamics
- erosion
- land use
- management
- 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 Record1. Life table response experiment (LTRE) analyses have been widely used to examine the sources of differences in the long-term deterministic growth rate (r = log ?) of stage-structured populations…Publication Date 2010
- Anthyllis vulneraria
- climate change
- life table response experiment (LTRE)
- population growth
- stochastic elasticities
- vegetation dynamics
- fertility
- plant production
- soil depth
- grasslands
- Library Collection RecordPlant-soil feedbacks is becoming an important concept for explaining vegetation dynamics, the invasiveness of introduced exotic species in new habitats and how terrestrial ecosystems respond to…Publication Date 2013
- vegetation dynamics
- plant-soil interactions
- Alien invasive species
- community dynamics
- succesion
- climate change
- biodiversity
- restoration
- ecosystem services
- management
- ecosystem ecology
- Library Collection RecordNinety-four sites worldwide have sufficient resolution and dating to document the impact of millennial-scale climate variability on vegetation and fire regimes during the last glacial period.…Publication Date 2010
- palaeobotany
- climate change
- vegetation dynamics
- Library Collection RecordBackground: The presence of plants is crucial in securing steep slopes against soil erosion. Inappropriate land use in mountains often leads to vegetation loss and thus soil degradation. Aims: Here…Publication Date 2011
- soil erosion
- restoration ecology
- degradation
- vegetation dynamics
- species diversity
- drought
- keystone species
- Georgia
- USA
- Library Collection Record1. Plant demographers using matrix tools have paid special attention to vital rates of reproduction, growth and survival. The demographic implications of plants regressing in size, or shrinking, have…Publication Date 2010
- vegetation dynamics
- ecosystem ecology
- comparative plant demography
- damping ratio
- Life Span
- matrix dimension
- plant shrinkage
- population growth rate (?)
- projection matrix models
- size phenotypic plasticity
- 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 Record1. An unresolved question in plant ecology is how the balance between positive and negative interactions changes with environmental conditions. Recently, the debate has been expanded by Brooker…Publication Date 2010
- vegetation dynamics
- ecosystem ecology
- competition
- environmental gradients
- facilitation
- indices
- plant interactions
- 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 Record1. Our aim was to explore plant - soil feedback in mixed grassland communities and its significance for plant productivity and community composition relative to abiotic factors of soil type and…Publication Date 2010
- grassland
- ecosystem ecology
- vegetation dynamics
- community ecology
- plant production
- Soil Condition
- soil fertility
- management
- above-ground biomass
- functional groups
- mesocosm
- mesotrophic grassland
- plant community dynamics
- plant - soil feedback
- soil conditioning
- Northumberland
- UK
- Library Collection RecordBackground: In European mountains, where semi-natural grasslands have high cultural and nature conservation value, land-use legacies from past ploughing are associated with distinct floristic…Publication Date 2011
- grasslands
- conservation ecology
- disturbance
- vegetation dynamics
- species richness
- pasture management
- Europe
- Library Collection RecordMany mechanisms have been suggested to explain the coexistence of woody species and grasses in savannas. However, evidence from field studies and simulation models has been mixed. Patch dynamics is a…Publication Date 2009
- Cyclical succession
- Spatiotemporal scales
- competition
- simulation models
- shrub encroachment
- Mosaic cycles
- Woody Species
- shrubs
- grasses
- savanna
- grasslands
- vegetation dynamics
- ecology
- modelling
- rainfall
- Library Collection RecordNon-random spatial patterns are a common feature of plant communities. However, the mechanisms leading to their formation remain unknown. The clonal dispersal ability of a species, that is, the…Publication Date 2013
- clonal plants
- competitive neighbourhood characteristics
- determinants of plant community diversity and structure
- O-ring statistics
- phalanx vs. guerilla strategy
- spatial structure
- species interaction
- grassland
- vegetation dynamics
- ecosystem ecology
- France
- Library Collection RecordThe objective of this study was to clarify whether the changes in percent cover of plant functional types (i.e., life forms and growth forms) along a grazing gradient reflect the livestock number,…Publication Date 2009
- grazing intensity
- plant functional type
- rangeland ecology
- semi-arid
- grazing
- livestock
- management
- sheep
- grasslands
- plant anatomy
- plant autecology
- vegetation dynamics
- Mongolia
- China
- Library Collection Record1. Chronosequences and associated space-for-time substitutions are an important and often necessary tool for studying temporal dynamics of plant communities and soil development across multiple time-…Publication Date 2010
- ecosystem ecology
- vegetation dynamics
- soils
- biodiversity
- species richness
- chronosequences
- disturbance
- plant communities
- retrogression
- soil biological communities
- Soil Development
- succession
- temporal change
- Library Collection RecordRecent interest in the importance of short-term, transient responses in population dynamics has prompted the development of many new methods for describing transient responses in population models.…Publication Date 2013
- amplification
- attenuation
- matrix population models
- plant population and community dynamics
- transient bounds
- vegetation dynamics
- community analysis
- Phytosociology
- Library Collection RecordUnderstanding the variation in hereditary symbiont frequency among host populations is a prerequisite to predict symbiont fixation processes. However, the mechanisms driving this variation remain…Publication Date 2013
- environmental heterogeneity
- Epichloë festucae
- fitness differential
- mutualism
- plant population and community dynamics
- symbiont fixation
- vertical transmission
- vegetation dynamics
- grassland
- ecosystem ecology
- Europe