Australian Journal of Botany Australian Journal of Botany Society
Southern hemisphere botanical ecosystems

Condition of fenced and unfenced remnant vegetation in inland catchments in south-eastern Australia

Sue V. Briggs A C , Nicola M. Taws B , Julian A. Seddon A and Bindi Vanzella B

A Department of Environment and Climate Change NSW, c/- CSIRO, GPO Box 284, Canberra ACT 2601, Australia.

B Greening Australia Capital Region, PO Box 538, Jamison Centre ACT 2614, Australia.

C Corresponding author. Email:

Australian Journal of Botany 56(7) 590-599
Submitted: 17 March 2008  Accepted: 27 October 2008   Published: 26 November 2008


Considerable areas of remnant native vegetation have been fenced in the last decade to manage grazing by domestic stock. This study investigated vegetation condition in comparative fenced and unfenced remnant vegetation in the mid–upper Murrumbidgee and Lachlan catchments in south-eastern Australia. Native species richness, native groundcover and overstorey regeneration were higher at fenced than at unfenced sites. Area of bare ground was lower at fenced sites. Exotic groundcover did not differ between fenced and unfenced sites. Native species richness was higher at sites fenced for longer and with no stock grazing; neither native nor exotic groundcover at fenced sites was related to time since fencing or stock grazing pressure. Some tree species regenerated at both fenced and unfenced sites (Blakely’s red gum, Eucalyptus blakelyi; tumbledown gum, E. dealbata, long-leaved box, E. goniocalyx; red stringbark, E. macrorhyncha), some regenerated at few fenced and few unfenced sites (white box, E. albens; yellow box, E. melliodora) and some regenerated at fenced sites but not at unfenced sites (grey box, E. microcarpa; mugga ironbark, E. sideroxylon; white cypress pine, Callitris glaucophylla). Although less robust than pre- and postfencing monitoring, the comparisons reported here provide a logistically feasible and relatively inexpensive assessment of effects of the sizeable public investment in fencing on vegetation condition.


Allcock KG Hik DS 2004 Survival, growth, and escape from herbivory are determined by habitat and herbivore species for three Australian woodland plants. Oecologia 138 231 241 doi:10.1007/s00442-003-1420-3

Briggs SV Taws N 2003 Impacts of salinity on biodiversity—clear understanding or muddy confusion? Australian Journal of Botany 51 609 617 doi:10.1071/BT02114

Briggs SV Seddon JA Doyle SJ 2007 Structures of bird communities in woodland remnants in central New South Wales, Australia. Australian Journal of Zoology 55 29 40 doi:10.1071/ZO06064

Bureau of Meteorology (2007) ‘Six years of widespread drought in southern and eastern Australia November 2001 – October 2007.’ Special Climate Statement 14. (Bureau of Meteorology: Melbourne)

Clarke PJ (2000) Plant population processes in temperate woodlands of eastern Australia—premises for management. In ‘Temperate eucalypt woodlands in Australia’. (Eds RJ Hobbs, CJ Yates) pp. 248–270. (Surrey Beatty: Sydney)

Clarke PJ 2002 Experiments on tree and shrub establishment in temperate grassy woodlands: seedling survival. Austral Ecology 27 606 615 doi:10.1046/j.1442-9993.2002.01221.x

Dorrough J Moxham C 2005 Eucalypt establishment in agricultural landscapes and implications for landscape-scale restoration. Biological Conservation 123 55 66 doi:10.1016/j.biocon.2004.10.008

Dorrough J Yen A Turner V Clark SG Crosthwaite J Hirth JR 2004 Livestock grazing management and biodiversity conservation in Australian temperate grassy landscapes. Australian Journal of Agricultural Research 55 279 295 doi:10.1071/AR03024

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 191 185 198 doi:10.1007/s11258-006-9236-y

Eddy DA (2002) ‘Managing native grassland: a guide to management for conservation, production and land protection.’ (WWF Australia: Sydney)

Gibbons P Briggs SV Ayers DA Doyle S Seddon J McElhinney C Jones N Sims R Doody JS 2008 Rapidly quantifying reference conditions in modified landscapes. Biological Conservation 141 2483 2493 doi:10.1016/j.biocon.2008.07.009

Gilfedder L Kirkpatrick JB 1998 Factors influencing the integrity of remnant bushland in subhumid Tasmania. Biological Conservation 84 89 96 doi:10.1016/S0006-3207(97)00087-6

Harden G (1990) ‘Flora of New South Wales. Vol. 1.’ (University of New South Wales Press: Sydney)

Harden G (1991) ‘Flora of New South Wales. Vol. 2.’ (University of New South Wales Press: Sydney)

Harden G (1992) ‘Flora of New South Wales. Vol. 3.’ (University of New South Wales Press: Sydney)

Harden G (1993) ‘Flora of New South Wales. Vol. 4.’ (University of New South Wales Press: Sydney)

Lehmann A Overton JMcC Leathwick JR 2003 GRASP: generalized regression analysis and spatial prediction. Ecological Modelling 160 165 183 doi:10.1016/S0304-3800(02)00354-X

Lewis T Clarke PJ Reid N Whalley RDB 2008 Perennial grassland dynamics on fertile plains: Is co-existence mediated by disturbance? Austral Ecology 33 128 139 doi:10.1111/j.1442-9993.2007.01801.x

Lunt ID Eldridge DJ Morgan JW Witt GB 2007 a Turner Review No. 13. A framework to predict the effects of livestock grazing and grazing exclusion in south-eastern Australia. Australian Journal of Botany 55 401 415 doi:10.1071/BT06178

Lunt ID Jansen A Binns DL Kenny SA 2007 b 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 32 937 949 doi:10.1111/j.1442-9993.2007.01782.x

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 doi:10.1016/j.agee.2006.06.013

Pettit NE Froend RH 2001 Long-term changes in the vegetation after cessation of livestock grazing in Eucalyptus marginata (jarrah) woodland remnants. Austral Ecology 26 22 31 doi:10.1046/j.1442-9993.2001.01069.x

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 doi:10.1071/BT9950349

Prober SM Thiele KR 2005 Restoring Australia’s temperate grasslands and grassy woodlands: integrating function and diversity. Ecological Management & Restoration 6 16 27 doi:10.1111/j.1442-8903.2005.00215.x

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 doi:10.1071/BT02052

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 doi:10.1111/j.1365-2664.2005.01095.x

Semple WS Koen TB 2003 Effect of pasture type on regeneration of eucalypts in the woodland zone of south-eastern Australia. Cunninghamia 8 76 84

Spooner PG Allcock KG 2006 Using a state-and-transition approach to manage endangered Eucalyptus albens (white box) woodlands. Environmental Management 38 771 783

Spooner PG Briggs SV 2008 Woodlands on farms in southern NSW: a longer-term assessment of vegetation changes after fencing. Ecological Management & Restoration 9 33 41 doi:10.1111/j.1442-8903.2008.00385.x

Spooner PG Lunt ID 2004 The influence of land-use history on roadside conservation values in an Australian agricultural landscape. Australian Journal of Botany 52 445 458 doi:10.1071/BT04008

Spooner PG Lunt ID Robinson W 2002 Is fencing enough? The short-term effects of stock exclusion in remnant grassy woodlands in southern NSW. Ecological Management & Restoration 2 117 126

Trémont RM McIntyre S 1994 Natural grassy vegetation and native forbs in temperate Australia: structure, dynamics and life histories. Australian Journal of Botany 42 641 658

Vesk PA Dorrough JW 2006 Getting trees on farms the easy way? Lessons from a model of eucalypt regeneration on pastures. Australian Journal of Botany 54 509 519 doi:10.1071/BT05188

Windsor DM (2000) A review of factors affecting regeneration of box woodlands in the central tablelands of New South Wales. In ‘Temperate eucalypt woodlands in Australia’. (Eds RJ Hobbs, CJ Yates) pp. 271–285. (Surrey Beatty: Sydney)

Yates CJ Hobbs RJ 1997 a Woodland restoration in the Western Australian wheatbelt: a conceptual framework using a state and transition model. Restoration Ecology 5 28 35 doi:10.1046/j.1526-100X.1997.09703.x

Yates CJ Hobbs RJ 1997 b Temperate eucalypt woodlands: a review of their status, processes threatening their persistence and techniques for restoration. Australian Journal of Botany 45 949 973 doi:10.1071/BT96091

Yates CJ , Hobbs RJ (2000) Temperate eucalypt woodland in Australia—An overview. In ‘Temperate eucalypt woodlands in Australia’. (Eds RJ Hobbs, CJ Yates) pp. 1–5. (Surrey Beatty: Sydney)

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