Arid land vegetation dynamics after a rare flooding event: influence of fire and grazing

@article{Westbrooke2005AridLV,
  title={Arid land vegetation dynamics after a rare flooding event: influence of fire and grazing},
  author={M. Westbrooke and S. Florentine and P. Milberg},
  journal={Journal of Arid Environments},
  year={2005},
  volume={61},
  pages={249-260}
}
Abstract Arid vegetation is subjected to more or less frequent fire, drought, and sporadic flooding events and grazing. Whilst fire, drought and grazing have been the subject of considerable research, little is known of the impact of flooding in arid environments. In this study we examined opportunistically the effects of a flooding event, and its interaction with fire and grazing on moulding arid vegetation in New South Wales, Australia. We assessed vegetation approximately 2 and 5 years after… Expand
Decade-long response of arid-land mallee vegetation to fire, flooding and grazing in south-eastern Australia
Australian arid vegetation has evolved within highly variable environments characterised by low rainfall and sporadic fire events. Episodic high rainfall events are a significant factor in plantExpand
Long term effect of fire, flood and grazing on invertebrates in Australia's arid zone: Collembola and Formicidae.
An extensive fire followed almost immediately by a large scale flood occurred in the semi-arid/arid Olary Creek area in southwest New South Wales. In order to monitor the short and long term effectExpand
Rainfall-driven Episodic Flood Events: are they a major factor in moulding New South Wales arid land vegetation patterns?
Abstract Episodic high rainfall has been proposed as an important factor in perennial species recruitment but flooding based on rainfall at a distance from the site has received little attention.Expand
Return of Fire to a Free‐Flowing Desert River: Effects on Vegetation
After a long period in which fuel loads were sparse, fire recently has occurred with high frequency in the ungrazed riparian zone of the Upper San Pedro River in southern Arizona’s Chihuahuan Desert.Expand
The influence of flood frequency, geomorphic setting and grazing on plant communities and plant biomass on a large dryland floodplain
Plant communities on semi-arid floodplains are ecologically important and support a diverse local and regional fauna and often pastoral economies. Water resource development may affect theseExpand
Spatio-Temporal Analysis of Vegetation Dynamics in Relation to Shifting Inundation and Fire Regimes: Disentangling Environmental Variability from Land Management Decisions in a Southern African Transboundary Watershed
Increasing temperatures and wildfire incidence and decreasing precipitation and river runoff in southern Africa are predicted to have a variety of impacts on the ecology, structure, and function ofExpand
An adaptive cycle hypothesis of semi‐arid floodplain vegetation productivity in dry and wet resource states
Spatial and temporal variability in flooding plays a significant role in the productivity of semi-arid floodplain ecosystems. Floodplains may be perceived as boom–bust systems, but this model doesExpand
Natural vegetation cover dynamic under grazing-rotation managements in desert rangelands of Tunisia
Two treatments were used to evaluate the effect of grazing intensity (continuously grazing and controlled grazing). The schedule is as follows: 1) Rest 3 years (2004 to 2007), 2) Graze 2 monthsExpand
Invasion of the noxious weed Nicotiana glauca R. Graham after an episodic flooding event in the arid zone of Australia.
TLDR
It is shown that the density of N. glauca is high in areas where grazing had eliminated competition from native shrubs and grasses, and is potentially a serious weed along the Olary Creek and ephemeral lake boundaries. Expand
Disturbance and resilience in riparian woodlands on the highly modified Upper Condamine floodplain
Remnant ecosystems in agricultural landscapes are poorly understood in terms of their diversity, function and dynamics under altered disturbance regimes, and of how these influence resilience toExpand
...
1
2
3
4
...

References

SHOWING 1-10 OF 40 REFERENCES
Disturbance, drought and dynamics of desert dune grassland, South Africa
TLDR
Testing the hypothesis that establishment of ephemeral plants, and recruitment of perennial grasses was dependent upon disturbances that reduced the density of living perennial grass tussocks found that synchronous recruitment following occasional drought-induced mortality can generate even-aged populations of the dominant desert dune grasses. Expand
The interpretation of vegetation change in a spatially and temporally diverse arid Australian landscape
Abstract We investigated the relationships between the vegetation and soil surfaces on two active floodplains and associated stable landforms in a grazed arid landscape, over a period of seven years.Expand
Vegetation Changes (1949-71) in a Semi-Arid, Grassy Dwarf Shrubland in the Karoo, South Africa: Influence of Rainfall Variability and Grazing by Sheep
TLDR
The influence of annual and seasonal rainfall variability and of different seasons and systems of sheep grazing on the botanical species composition of a community characterized by dwarf shrubs, annual and perennial grasses, and ephemeral dicotyledons, was investigated in the Karoo, South Africa. Expand
Drought Effects on a Semidesert Grassland Range
A vegetational survey on the Jornada Experimental Range in southern New Mexico, taken annually from 1941 through 1957, is the basis for a study of the effects of the great drought of 1951 throughExpand
Effects of fire, grazing, and the presence of shrubs on Chihuahuan desert grasslands.
Abstract Responses of herbaceous and suffrutescent species to fire, grazing, and presence of Prosopis glandulosa were examined in a Chihuahuan desert grassland in south-central New Mexico. TreatmentsExpand
Fire and grazing in a shrub-invaded arid grassland community: independent or interactive ecological effects?
TLDR
Summer and winter annual plants were significantly more abundant, and summer annual plant species richness and diversity were significantly higher on burn plots. Expand
Invasion of the noxious weed Nicotiana glauca R. Graham after an episodic flooding event in the arid zone of Australia.
TLDR
It is shown that the density of N. glauca is high in areas where grazing had eliminated competition from native shrubs and grasses, and is potentially a serious weed along the Olary Creek and ephemeral lake boundaries. Expand
Effects of grazing on the abundance and diversity of annual plants in Chihuahuan desert scrub habitat
TLDR
It is found that removal of herbivores (cattle) had little impact on ephemeral plant assemblages at an upper Chihuahuan Desert scrub site in south-eastern Arizona. Expand
Spatial and temporal variability in California annual grassland: results from a long-term study
We present data from the first 11 years of a long- term study of the dynamics of an annual grassland on serpen- tine soil in Jasper Ridge Biological Preserve, Northern Cali- fornia. Annual rainfallExpand
Fire and flood: Soil‐stored seed bank and germination ecology in the endangered Carrington Falls Grevillea (Grevillea rivularis, Proteaceae)
TLDR
The aims of this study were to examine the density and vertical distribution of the soil-stored seed bank and to investigate the role of heat and scarification as cues for germination of fresh and soil-Stored seed. Expand
...
1
2
3
4
...