A framework to predict the effects of livestock grazing and grazing exclusion on conservation values in natural ecosystems in Australia
Ian D. Lunt A E , David J. Eldridge B , John W. Morgan C and G. Bradd Witt DA Institute for Land, Water and Society, Charles Sturt University, PO Box 789 Albury, NSW 2640, Australia.
B Department of Natural Resources, c/- School of Biological, Earth and Environmental Sciences, University of NSW, Sydney, NSW 2052, Australia.
C Department of Botany, La Trobe University, Bundoora, Vic. 3086, Australia.
D School of Natural and Rural Systems Management, The University of Queensland, Gatton Campus, Gatton, Qld 4343, Australia.
E Corresponding author. Email: ilunt@csu.edu.au
Australian Journal of Botany 55(4) 401-415 https://doi.org/10.1071/BT06178
Submitted: 23 August 2006 Accepted: 22 January 2007 Published: 20 June 2007
Abstract
Grazing by domestic livestock has greatly degraded many Australian ecosystems and its legacy will be long-lasting in many areas. Although livestock are usually removed from conservation reserves because they are perceived to be incompatible with the conservation of natural ecosystems, they have been retained in several reserves in south-eastern Australia as a management tool to achieve conservation outcomes. These cases highlight the fact that no framework currently exists to address the question, under what circumstances (and in what ecosystems) is livestock grazing—or the removal of grazing—likely to have positive, negative, neutral or uncertain impacts on the diversity and composition of native plants? This paper provides a conceptual framework to predict the effects of livestock grazing and grazing exclusion on the conservation values of native vegetation across natural ecosystems in Australia. It should prove equally relevant to other ecosystems around the world which have evolved without heavy grazing by large herbivores. The framework is based on disturbance- and grazing-ecology literature from Australia and elsewhere, and incorporates the following six main factors: (1) impacts of livestock grazing on soil and ecosystem processes, (2) historical exposure to grazing, (3) site productivity, (4) relative palatability of dominant species, (5) species-specific factors influencing plant recruitment and (6) spatial scale and landscape context. These factors are integrated into a decision tree to describe the potential impacts of livestock on native vegetation in a particular area. Livestock grazing is likely to have detrimental impacts on conservation values in many ecological contexts, especially in relatively intact, uninvaded ecosystems on unproductive soils. By contrast, it may be a useful management tool to achieve conservation objectives where it either (1) controls the biomass of existing potentially dominant, grazing-sensitive plants (native or exotic), (2) prevents encroachment by undesirable, grazing-sensitive, potential dominants, (3) provides disturbance niches required by rare or significant plant species, (4) maintains fauna habitat structure or (5) enhances the diversity of species and vegetation structures across the landscape, especially when most of the landscape is ungrazed. In many cases, other disturbance regimes (especially burning) may achieve similar outcomes; however, other disturbances will not necessarily be more effective than grazing per se, especially in degraded or invaded areas. The framework provides a coarse-level filter to inform management decisions and to allow the findings from individual studies to be placed in a larger ecological context. Although the framework is intended to improve decisions about conservation management, it is clear that much more research is needed to assess the role of grazing exclusion in previously grazed ecosystems, and that modifications to current grazing regimes require testing, perhaps by using adaptive management principles, to ensure optimal outcomes for biodiversity conservation.
Acknowledgements
Preparation of this review was partly supported by funding to I. D. L. from Environment ACT and the NSW Environmental Trust, to whom we are most grateful. The manuscript was greatly improved by suggestions from two anonymous referees.
Allcock KG
(2002) Effects of phosphorus on growth and competitive interactions of native and introduced species found in white box woodlands. Austral Ecology 27, 638–646.
| Crossref | GoogleScholarGoogle Scholar |
Andrew MH
(1988) Grazing impact in relation to livestock watering points. Trends in Ecology & Evolution 3, 336–339.
| Crossref | GoogleScholarGoogle Scholar |
Archer S
(1995) Harry Stobbs memorial lecture, 1993. Herbivore mediation of grass-woody plant interactions. Tropical Grasslands 29, 218–235.
Archibald S,
Bond WJ,
Stock WD, Fairbanks DHK
(2005) Shaping the landscape: fire-grazer interactions in an African savanna. Ecological Applications 15, 96–109.
| Crossref |
Baker-Gabb D
(1998) Native grasslands and the plains-wanderer. Supplement to Wingspan 8, 1–8.
Bakker ES,
Ritchie ME,
Olff H,
Milchunas DG, Knops JMH
(2006) Herbivore impact on grassland plant diversity depends on habitat productivity and herbivore size. Ecology Letters 9, 780–788.
| Crossref | GoogleScholarGoogle Scholar | PubMed |
Begg JE
(1963) Comparative responses of indigenous, naturalized, and commercial legumes to phosphorus and sulphur. Australian Journal of Experimental Agriculture and Animal Husbandry 3, 17–19.
| Crossref | GoogleScholarGoogle Scholar |
Bell DT
(1999) Turner review no. 1. The process of germination in Australian species. Australian Journal of Botany 47, 475–517.
| Crossref | GoogleScholarGoogle Scholar |
Borman MM
(2005) Forest stand dynamics and livestock grazing in historical context. Conservation Biology 19, 1658–1662.
| Crossref | GoogleScholarGoogle Scholar |
Bowman DMJS
(1998) Tansley review no. 101. The impact of Aboriginal landscape burning on the Australian biota. New Phytologist 140, 385–410.
| Crossref | GoogleScholarGoogle Scholar |
Briggs JM,
Knapp AK,
Blair JM,
Heisler JL,
Hoch GA,
Lett MS, McCarron JK
(2005) An ecosystem in transition: causes and consequences of the conversion of mesic grassland to shrubland. Bioscience 55, 243–254.
| Crossref | GoogleScholarGoogle Scholar |
Briske DD,
Fuhlendorf SD, Smeins FE
(2003) Vegetation dynamics on rangelands: a critique of the current paradigms. Journal of Applied Ecology 40, 601–614.
| Crossref | GoogleScholarGoogle Scholar |
Bromham L,
Cardillo M,
Bennett AF, Elgar MA
(1999) Effects of stock grazing on the ground invertebrate fauna of woodland remnants. Australian Journal of Ecology 24, 199–207.
| Crossref | GoogleScholarGoogle Scholar |
Brown JR, Archer S
(1988) Woody plant seed dispersal and gap formation in a North American subtropical savanna woodland: the role of domestic herbivores. Vegetatio 73, 73–80.
| Crossref | GoogleScholarGoogle Scholar |
Campbell MH
(1998) Biological and ecological impact of serrated tussock (Nassella trichotoma (Nees) Arech.) on pastures in Australia. Plant Protection Quarterly 13, 80–86.
Carr SGM, Turner JS
(1959) The ecology of the Bogong High Plains. II. Fencing experiments in grassland C. Australian Journal of Botany 7, 34–63.
| Crossref | GoogleScholarGoogle Scholar |
Chalmers A,
McIntyre S,
Whalley RDB, Reid N
(2005) Grassland species response to soil disturbance and nutrient enrichment on the northern tablelands of New South Wales. Australian Journal of Botany 53, 485–499.
| Crossref | GoogleScholarGoogle Scholar |
Chaneton EJ, Facelli JM
(1991) Disturbance effects on plant community diversity: spatial scales and dominance hierarchies. Vegetatio 93, 143–155.
| Crossref | GoogleScholarGoogle Scholar |
Cheal D
(1986) A park with a kangaroo problem. Oryx 20, 95–99.
Chesterfield CJ, Parsons RF
(1985) Regeneration of three tree species in arid south-eastern Australia. Australian Journal of Botany 33, 715–732.
| Crossref | GoogleScholarGoogle Scholar |
Cingolani AM,
Noy-Meir I, Diaz S
(2005) Grazing effects on rangeland diversity: a synthesis of contemporary models. Ecological Applications 15, 757–773.
| Crossref |
Clarke PJ
(2002) Experiments on tree and shrub establishment in temperate grassy woodlands: seedling survival. Austral Ecology 27, 606–615.
| Crossref | GoogleScholarGoogle Scholar |
Clarke PJ
(2003) Composition of grazed and cleared temperate grassy woodlands in eastern Australia: patterns in space and inferences in time. Journal of Vegetation Science 14, 5–14.
| Crossref | GoogleScholarGoogle Scholar |
Clarke PJ,
Davison EA, Fulloon L
(2000) Germination and dormancy of grassy woodland and forest species: effects of smoke, heat, darkness and cold. Australian Journal of Botany 48, 687–700.
| Crossref | GoogleScholarGoogle Scholar |
Collins SL
(1987) Interaction of disturbances in tallgrass prairie: a field experiment. Ecology 68, 1243–1250.
| Crossref | GoogleScholarGoogle Scholar |
Collins SL,
Knapp AK,
Briggs JM,
Blair JM, Steinauer EM
(1998) Modulation of diversity by grazing and mowing in native tallgrass prairie. Science 280, 745–747.
| Crossref | GoogleScholarGoogle Scholar |
Connell JH
(1978) Diversity in tropical rainforests and coral reefs. Science 199, 1302–1310.
| Crossref | GoogleScholarGoogle Scholar |
Crisp MD
(1978) Demography and survival under grazing of three Australian semi-desert shrubs. Oikos 30, 520–528.
| Crossref | GoogleScholarGoogle Scholar |
Davis MA,
Grime JP, Thompson K
(2000) Fluctuating resources in plant communities: a general theory of invasibility. Journal of Ecology 88, 528–534.
| Crossref | GoogleScholarGoogle Scholar |
Dixon S
(1892) The effects of settlement and pastoral occupation in Australia upon the indigenous vegetation. Transactions of the Royal Society of South Australia 15, 195–206.
Dorrough J, Ash J
(2004) The impact of livestock grazing on the persistence of a perennial forb in a temperate Australian grassland. Pacific Conservation Biology 9, 302–307.
Dorrough J, Moxham C
(2005) Eucalypt establishment in agricultural landscapes and implications for landscape-scale restoration. Biological Conservation 123, 55–66.
| Crossref | GoogleScholarGoogle Scholar |
Dorrough J,
Yen A,
Turner V,
Clark SG,
Crosthwaite J, Hirth JR
(2004a) Livestock grazing management and biodiversity conservation in Australian temperate grassy landscapes. Australian Journal of Agricultural Research 55, 279–295.
| Crossref | GoogleScholarGoogle Scholar |
Dorrough J,
Ash J, McIntyre S
(2004b) Plant responses to livestock grazing frequency in an Australian temperate grassland. Ecography 27, 798–810.
| Crossref | GoogleScholarGoogle Scholar |
Dorrough JW,
Ash JE,
Bruce S, McIntyre S
(2007) From plant neighbourhood to landscape scales: how grazing modifies native and exotic plant species richness in grassland. Plant Ecology in press ,
Fensham RJ,
Holman JE, Cox MJ
(1999) Plant species responses along a grazing disturbance gradient in Australian grassland. Journal of Vegetation Science 10, 77–86.
| Crossref | GoogleScholarGoogle Scholar |
Gale SJ, Haworth RJ
(2005) Catchment-wide soil loss from pre-agricultural times to the present: transport- and supply-limitation of erosion. Geomorphology 68, 314–333.
| Crossref | GoogleScholarGoogle Scholar |
George MR,
Brown JR, Clawson WJ
(1992) Application of nonequilibrium ecology to management of Mediterranean grasslands. Journal of Range Management 45, 436–440.
Gilfedder L, Kirkpatrick JB
(1994) Climate, grazing and disturbance, and the population dynamics of Leucochrysum albicans at Ross, Tasmania. Australian Journal of Botany 42, 417–430.
| Crossref | GoogleScholarGoogle Scholar |
Greenwood KL, McKenzie BM
(2001) Grazing effects on soil physical properties and the consequences for pastures: a review. Australian Journal of Experimental Agriculture 41, 1231–1250.
| Crossref | GoogleScholarGoogle Scholar |
Grime JP
(1973) Competitive exclusion in herbaceous vegetation. Nature 242, 344–347.
| Crossref | GoogleScholarGoogle Scholar |
Groves RH,
Austin MP, Kaye PE
(2003) Competition between Australian native and introduced grasses along a nutrient gradient. Austral Ecology 28, 491–498.
| Crossref | GoogleScholarGoogle Scholar |
Harrington GN,
Oxley RE, Tongway DJ
(1979) The effects of European settlement and domestic livestock on the biological system in poplar box (Eucalyptus populnea) lands. Australian Rangeland Journal 1, 271–279.
| Crossref | GoogleScholarGoogle Scholar |
Heddle EM, Specht RL
(1975) Dark Island heath (Ninety-mile Plain, South Australia). VIII. The effect of fertilizers on composition and growth, 1950–1972. Australian Journal of Botany 23, 151–164.
| Crossref | GoogleScholarGoogle Scholar |
Hodgkinson KC
(1976) The effects of frequency and extent of defoliation, summer irrigation, and fertilizer on the production and survival of the grass Danthonia caespitosa Gaud. Australian Journal of Agricultural Research 27, 755–767.
| Crossref | GoogleScholarGoogle Scholar |
Hodgkinson KC, Harrington GN
(1985) The case for prescribed burning to control shrubs in eastern semi-arid woodlands. Australian Rangeland Journal 7, 64–74.
| Crossref | GoogleScholarGoogle Scholar |
Holm AM,
Watson IW,
Loneragan WA, Adams MA
(2003) Loss of patch-scale heterogeneity on primary productivity and rainfall-use efficiency in Western Australia. Basic and Applied Ecology 4, 569–578.
| Crossref | GoogleScholarGoogle Scholar |
Hunt LP
(2001) Heterogeneous grazing causes local extinction of edible perennial shrubs: a matrix analysis. Journal of Applied Ecology 38, 238–252.
| Crossref | GoogleScholarGoogle Scholar |
Huston M
(1979) A general hypothesis of species diversity. American Naturalist 113, 81–101.
| Crossref | GoogleScholarGoogle Scholar |
Huston MA
(2004) Management strategies for plant invasions: manipulating productivity, disturbance, and competition. Diversity & Distributions 10, 167–178.
| Crossref | GoogleScholarGoogle Scholar |
James CD,
Landsberg J, Morton SR
(1999) Provision of watering points in the Australian arid zone: a review of effects on biota. Journal of Arid Environments 41, 87–121.
| Crossref | GoogleScholarGoogle Scholar |
Jansen A, Robertson AI
(2001) Relationships between livestock management and the ecological condition of riparian habitats along an Australian floodplain river. Journal of Applied Ecology 38, 63–75.
| Crossref | GoogleScholarGoogle Scholar |
Kemp DR,
Dowling PM, Michalk DL
(1996) Managing the composition of native and naturalised pastures with grazing. New Zealand Journal of Agricultural Research 39, 569–578.
Kondoh M
(2001) Unifying the relationships of species richness to productivity and disturbance. Proceedings of the Royal Society of London. Series B. Biological Sciences 268, 269–271.
| Crossref | GoogleScholarGoogle Scholar |
Lamont BB,
LeMaitre DC,
Cowling RM, Enright NJ
(1991) Canopy seed storage in woody plants. Botanical Review 57, 277–317.
Landsberg J,
James CD,
Maconochie J,
Nicholls AO,
Stol J, Tynan R
(2002) Scale-related effects of grazing on native plant communities in an arid rangeland region of South Australia. Journal of Applied Ecology 39, 427–444.
| Crossref | GoogleScholarGoogle Scholar |
Landsberg J,
James CD,
Morton SR,
Muller WJ, Stol J
(2003) Abundance and composition of plant species along grazing gradients in Australian rangelands. Journal of Applied Ecology 40, 1008–1024.
| Crossref | GoogleScholarGoogle Scholar |
Lange RT
(1969) The piosphere: sheep track and dung patterns. Journal of Range Management 22, 396–400.
Lawrence RE
(1999) Vegetation changes on the Bogong High Plains from the 1850s to 1950s. Proceedings of the Royal Society of Victoria 111, xxix–lii.
Leishman MR, Thomson VP
(2005) Experimental evidence for the effects of additional water, nutrients and physical disturbance on invasive plants in low fertility Hawkesbury Sandstone soils, Sydney. Australian Journal of Ecology 93, 38–49.
Lenz TI, Facelli JM
(2005) The role of seed limitation and resource availability in the recruitment of native perennial grasses and exotics in a South Australian grassland. Austral Ecology 30, 684–694.
| Crossref | GoogleScholarGoogle Scholar |
Leonard SWJ, Kirkpatrick JB
(2004) Effects of grazing management and environmental factors on native grassland and grassy woodland, Northern Midlands, Tasmania. Australian Journal of Botany 52, 529–542.
| Crossref | GoogleScholarGoogle Scholar |
Lodge GM,
Scott JM,
King KL, Hutchinson MD
(1998) A review of sustainable pasture production issues in temperate native and improved pastures. Animal Production in Australia 22, 79–89.
Lunt ID
(1997a) Germinable soil seed basks of anthropogenic native grasslands and grassy forest remnants in temperate south-eastern Australia. Plant Ecology 130, 21–34.
| Crossref | GoogleScholarGoogle Scholar |
Lunt ID
(1997b) Effects of long-term vegetation management on remnant grassy forests and anthropogenic native grasslands in south-eastern Australia. Biological Conservation 81, 287–297.
| Crossref | GoogleScholarGoogle Scholar |
Lunt ID
(2002) Grazed, burnt and cleared: how ecologists have studied century-scale vegetation changes in Australia. Australian Journal of Botany 50, 391–407.
| Crossref | GoogleScholarGoogle Scholar |
Lunt ID, Spooner PG
(2005) Using historical ecology to understand patterns of biodiversity in fragmented agricultural landscapes. Journal of Biogeography 32, 1859–1873.
| Crossref | GoogleScholarGoogle Scholar |
Lunt ID,
Jansen A,
Binns DL, Kenny SA
(2007) Long-term effects of exclusion of grazing stock on degraded herbaceous plant communities in a riparian Eucalyptus camaldulensis forest in south-eastern Australia. Austral Ecology in press 32,
Mack RN, Thompson JN
(1982) Evolution in steppe with few, large, hooved mammals. American Naturalist 119, 757–773.
| Crossref | GoogleScholarGoogle Scholar |
McIntyre S, Lavorel S
(1994) How environmental and disturbance factors influence species composition in temperate Australian grasslands. Journal of Vegetation Science 5, 373–384.
| Crossref | GoogleScholarGoogle Scholar |
McIntyre S, Lavorel S
(2001) Livestock grazing in subtropical pastures: steps in the analysis of attribute response and plant functional types. Journal of Ecology 89, 209–226.
| Crossref | GoogleScholarGoogle Scholar |
McIntyre S, Lavorel S
(2007) A conceptual model of land use effects on the structure and function of herbaceous vegetation. Agriculture, Ecosystems & Environment 119, 11–21.
| Crossref |
McIntyre S, Martin TG
(2001) Biophysical and human influences on plant species richness in grasslands: comparing variegated landscapes in subtropical and temperate regions. Austral Ecology 26, 233–245.
| Crossref | GoogleScholarGoogle Scholar |
McIvor JG,
McIntyre S,
Saeli I, Hodgkinson JJ
(2005) Patch dynamics in grazed subtropical native pastures in south-east Queensland. Austral Ecology 30, 445–464.
| Crossref | GoogleScholarGoogle Scholar |
Milchunas DG, Lauenroth WK
(1993) Quantitative effects of grazing on vegetation and soils over a global range of environments. Ecological Monographs 63, 327–366.
| Crossref | GoogleScholarGoogle Scholar |
Milchunas DG,
Sala OE, Lauenroth WK
(1988) A generalized model of the effects of grazing by large herbivores on grassland community structure. American Naturalist 132, 87–106.
| Crossref | GoogleScholarGoogle Scholar |
Moore CWE
(1953) The vegetation of the south-eastern Riverina, New South Wales. II. The disclimax communities. Australian Journal of Botany 1, 548–567.
| Crossref | GoogleScholarGoogle Scholar |
Moore RM
(1967) The naturalisation of alien plants in Australia. I.U.C.N. Publications New Series 9, 82–97.
Morgan JW
(1998a) Composition and seasonal flux of the soil seed bank of species-rich Themeda triandra grasslands in relation to burning history. Journal of Vegetation Science 9, 145–156.
| Crossref | GoogleScholarGoogle Scholar |
Morgan JW
(1998b) Comparative germination responses of 28 temperate grassland species. Australian Journal of Botany 46, 209–219.
| Crossref | GoogleScholarGoogle Scholar |
Morgan JW
(1998c) Importance of canopy gaps for recruitment of some forbs in Themeda triandra-dominated grasslands in south-eastern Australia. Australian Journal of Botany 46, 609–627.
| Crossref | GoogleScholarGoogle Scholar |
Noy-Meir I, Kaplan D
(2002) Species richness of annual legumes in relation to grazing in Mediterranean vegetation in northern Israel. Israel Journal of Plant Sciences 50, S95–S109.
| Crossref | GoogleScholarGoogle Scholar |
O’Connor TG
(1991) Local extinction in perennial grasslands: a life-history approach. American Naturalist 137, 753–773.
| Crossref | GoogleScholarGoogle Scholar |
Olff H, Ritchie ME
(1998) Effects of herbivores on grassland plant diversity. Trends in Ecology & Evolution 13, 261–265.
| Crossref | GoogleScholarGoogle Scholar |
Olley JM, Wasson RJ
(2003) Changes in the flux of sediment in the upper Murrumbidgee catchment, southeastern Australia, since European settlement. Hydrological Processes 17, 3307–3320.
| Crossref | GoogleScholarGoogle Scholar |
Parma AM, NCEAS Working Group on Population Management
(1998) What can adaptive management do for our fish, forests, food and biodiversity? Integrative Biology 1, 16–26.
| Crossref | GoogleScholarGoogle Scholar |
Perevolotsky A, Seligman NG
(1998) Role of grazing in Mediterranean rangeland ecosystems—inversion of a paradigm. Bioscience 48, 1007–1017.
| Crossref | GoogleScholarGoogle Scholar |
Pettit NE,
Froend RH, Ladd PG
(1995) Grazing in remnant woodland vegetation: changes in species composition and life form groups. Journal of Vegetation Science 6, 121–130.
| Crossref | GoogleScholarGoogle Scholar |
Prache S,
Gordon IJ, Rook AJ
(1998) Foraging behaviour and diet selection in domestic herbivores. Annales De Zootechnie 47, 335–345.
Pringle HJR,
Watson IW, Tinley KL
(2006) Landscape improvement, or ongoing degradation—reconciling apparent contradictions from the arid rangelands of Western Australia. Landscape Ecology 21, 1267–1279.
| Crossref | GoogleScholarGoogle Scholar |
Prober SM, Thiele KR
(1995) Conservation of the grassy white box woodlands: relative contributions of size and disturbance to floristic composition and diversity of remnants. Australian Journal of Botany 43, 349–366.
| Crossref | GoogleScholarGoogle Scholar |
Prober SM, Thiele KR
(2005) Restoring Australia’s temperate grasslands and grassy woodlands: integrating function and diversity. Ecological Management & Restoration 6, 16–27.
| Crossref | GoogleScholarGoogle Scholar |
Prober SM,
Thiele KR, Lunt ID
(2002) Identifying ecological barriers to restoration in temperate grassy woodlands: soil changes associated with different degradation states. Australian Journal of Botany 50, 699–712.
| Crossref | GoogleScholarGoogle Scholar |
Prober SM,
Thiele KR,
Lunt ID, Koen TB
(2005) Restoring ecological function in temperate grassy woodlands: manipulating soil nutrients, exotic annuals and native perennial grasses through carbon supplements and spring burns. Journal of Applied Ecology 42, 1073–1085.
| Crossref | GoogleScholarGoogle Scholar |
Proulx M, Mazumder A
(1998) Reversal of grazing impact on plant species richness in nutrient-poor vs. nutrient-rich ecosystems. Ecology 79, 2581–2592.
| Crossref | GoogleScholarGoogle Scholar |
Radford IJ,
Nicholas DM,
Brown JR, Kriticos DJ
(2001) Paddock-scale patterns of seed production and dispersal in the invasive shrub Acacia nilotica (Mimosaceae) in northern Australian rangelands. Austral Ecology 26, 338–348.
| Crossref | GoogleScholarGoogle Scholar |
Robertson AI, Rowling RW
(2000) Effects of livestock on riparian zone vegetation in an Australian dryland river. Regulated Rivers: Research and Management 16, 527–541.
| Crossref | GoogleScholarGoogle Scholar |
Rook AJ,
Dumont B,
Isselstein J,
Osoro K,
Wallis deVries MF,
Parente G, Mills J
(2004) Matching type of livestock to desired biodiversity outcomes in pastures—a review. Biological Conservation 119, 137–150.
| Crossref | GoogleScholarGoogle Scholar |
Saunders DA,
Smith GT,
Ingram JA, Forrester RI
(2003) Changes in a remnant of salmon gum Eucalyptus salmonophloia and York gum E. loxophleba woodland, 1978 to 1997. Implications for woodland conservation in the wheat–sheep regions of Australia. Biological Conservation 110, 245–256.
| Crossref | GoogleScholarGoogle Scholar |
Scott AW, Whalley RDB
(1984) The influence of intensive sheep grazing on genotypic differentiation in Danthonia linkii, D. richardsonii and D. racemosa on the New England Tablelands. Australian Journal of Ecology 9, 419–429.
| Crossref | GoogleScholarGoogle Scholar |
Sharp BR, Whittaker RJ
(2003) The irreversible cattle-driven transformation of a seasonally flooded Australian savanna. Journal of Biogeography 30, 783–802.
| Crossref | GoogleScholarGoogle Scholar |
Specht RL
(1963) Dark Island heath (Ninety-mile Plain, South Australia). VII. The effect of fertilizers on composition and growth, 1950–1960. Australian Journal of Botany 11, 67–94.
| Crossref | GoogleScholarGoogle Scholar |
Stohlgren TJ,
Schell LD, Vanden Heuvel B
(1999) How grazing and soil quality affect native and exotic plant diversity in rocky mountain grasslands. Ecological Applications 9, 45–64.
| Crossref | GoogleScholarGoogle Scholar |
Stuwe J, Parsons RF
(1977) Themeda australis grasslands on the Basalt Plains, Victoria: floristics and management effects. Australian Journal of Ecology 2, 467–476.
| Crossref | GoogleScholarGoogle Scholar |
Taylor JA,
Hedges DA, Whalley RDB
(1984) The occurrence, distribution and characteristics of sheep camps on the northern tablelands of New South Wales. Australian Rangeland Journal 6, 10–16.
| Crossref | GoogleScholarGoogle Scholar |
Tieu A,
Dixon KW,
Meney KA, Sivasithamparam K
(2001) The interaction of heat and smoke in the release of seed dormancy in seven species from southwestern Western Australia. Annals of Botany 88, 259–265.
| Crossref | GoogleScholarGoogle Scholar |
Tiver F, Andrew MH
(1997) Relative effects of herbivory by sheep, rabbits, goats and kangaroos on recruitment and regeneration of shrubs and trees in eastern New South Wales. Journal of Applied Ecology 34, 903–914.
| Crossref | GoogleScholarGoogle Scholar |
Tiver F,
Nicholas M,
Kriticos D, Brown JR
(2001) Low density of prickly acacia under sheep grazing in Queensland. Journal of Range Management 54, 382–389.
Tongway DJ, Ludwig JA
(1990) Vegetation and soil patterning in semi-arid mulga lands of eastern Australia. Australian Journal of Ecology 15, 23–34.
| Crossref | GoogleScholarGoogle Scholar |
Tremont RM
(1994) Life-history attributes of plants in grazed and ungrazed grasslands on the northern tablelands of New South Wales. Australian Journal of Botany 42, 511–530.
| Crossref | GoogleScholarGoogle Scholar |
van Rees H, Hutson GD
(1983) The behaviour of free-ranging cattle on an alpine range in Australia. Journal of Range Management 36, 740–743.
Vesk PA, Westoby M
(2001) Predicting plant species’ responses to grazing. Journal of Applied Ecology 38, 897–909.
| Crossref | GoogleScholarGoogle Scholar |
Wahren CH,
Williams RJ, Papst WA
(1999) Alpine and subalpine wetland vegetation on the Bogong High Plains, south-eastern Australia. Australian Journal of Botany 47, 165–188.
| Crossref | GoogleScholarGoogle Scholar |
Wahren CHA,
Williams RJ, Papst WA
(2001) Vegetation change and ecological processes in alpine and subalpine sphagnum bogs of the Bogong High Plains, Victoria, Australia. Arctic, Antarctic, and Alpine Research 33, 357–368.
| Crossref | GoogleScholarGoogle Scholar |
Westoby M,
Walker BH, Noy-Meir I
(1989) Opportunistic management for rangelands not at equilibrium. Journal of Range Management 42, 266–274.
Whalley RDB
(1994) State and transition models for rangelands. 1. Successional theory and vegetation change. Tropical Grasslands 28, 195–205.
Williams OB
(1969) Studies in the ecology of the Riverine Plain. V. Plant density response of species in a Danthonia caespitosa grassland to 16 years of grazing by merino sheep. Australian Journal of Botany 17, 255–268.
| Crossref | GoogleScholarGoogle Scholar |
Williams RJ
(1990) Cattle grazing within subalpine heathland and grassland communities on the Bogong High Plains: disturbance, regeneration and the shrub–grass balance. Proceedings of the Ecological Society of Australia 16, 255–265.
Wilson AD
(1990) The effect of grazing on Australian ecosystems. Proceedings of the Ecological Society of Australia 16, 235–244.
Wimbush DJ, Costin AB
(1979) Trends in vegetation at Kosciusko. I. Grazing trials in the subalpine zone, 1957–1971. Australian Journal of Botany 27, 741–787.
| Crossref | GoogleScholarGoogle Scholar |
Witt GB,
Luly J, Fairfax RJ
(2006) How the west was once: vegetation change in south-west Queensland from 1930 to 1995. Journal of Biogeography 33, 1585–1596.
| Crossref | GoogleScholarGoogle Scholar |
Wu J, Loucks OL
(1995) From balance of nature to hierarchical patch dynamics: a paradigm shift in ecology. The Quarterly Review of Biology 70, 439–466.
| Crossref | GoogleScholarGoogle Scholar |
Yates CJ, Hobbs RJ
(1997) Woodland restoration in the Western Australian wheatbelt: a conceptual framework using a state and transition model. Restoration Ecology 5, 28–35.
| Crossref | GoogleScholarGoogle Scholar |
Yates CJ,
Norton DA, Hobbs RJ
(2000) Grazing effects on plant cover, soil and microclimate in fragmented woodlands in south-western Australia: implications for restoration. Austral Ecology 25, 36–47.
| Crossref | GoogleScholarGoogle Scholar |