Biodiversity & Conservation

, Volume 11, Issue 5, pp 807–832 | Cite as

The conservation value of paddock trees for birds in a variegated landscape in southern New South Wales. 1. Species composition and site occupancy patterns

  • Joern Fischer
  • David B. Lindenmayer


The use of paddock trees by birds was assessed in a grazinglandscape in southern New South Wales, Australia. Seventy paddock treesites were surveyed for 20 min each in the morning, and 36sites were surveyed again at midday in March 2000. During this time, thepresence and abundance of birds was recorded. Several site and landscapevariables were measured at each site. These included tree species, atree size index, a measure of the crown cover density around the site,and proximity to the nearest woodland patch. During formal surveys, 31bird species, including several woodland species, were observed usingpaddock trees. Data from bird surveys in woodland patches that wereobtained in a separate study in November 1999 were used to comparewhether there was a relationship between the abundance of a given birdspecies in woodland patches and paddock trees. Many birds commonlydetected in woodland patches were also common in paddock trees. However,some birds with special habitat requirements were absent from paddocktrees although they were common in woodland patches. Site occupancypatterns were modelled for several guilds of birds using logisticregression. Foliage-foraging birds were more likely to occupy clumps oftrees and sites with a high tree size index. Nectarivores appeared to bemore likely to be detected at sites more than 200 m fromwoodland, although this result was marginally non-significant(P = 0.08). The probability of detecting granivoreswas higher at sites with a low tree size index. Open country specieswere most likely to occupy large trees and sites that were located morethan 200 m from the nearest woodland patch. The value ofpaddock trees may have been underestimated in the past because a widevariety of bird species use paddock trees on a regular basis. Ensuringthe continued survival of paddock trees should be an important aspect offuture conservation and revegetation efforts.

Australia Birds Isolated trees Paddock trees Variegated landscapes 


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  1. Arnold G.W. and Weeldenburg J.R. 1998. The effects of isolation, habitat fragmentation and degradation by livestock grazing on the use by birds of patches of Gimlet Eucalyptus salubris woodland in the wheatbelt of western Australia. Pacific Conservation Biology 4: 155-163.Google Scholar
  2. Bennett A.F. 1995. Wildlife conservation and management on private land-facing the challenge. In: Bennett A., Backhouse G. and Clark T. (eds), People and Nature Conservation. Surrey Beatty and Sons, Chipping Norton, Australia, pp. 119-127.Google Scholar
  3. Barrett G. 1997. Repairing the rural landscape: birds on farms. Wingspan 7: 10-15.Google Scholar
  4. Barrett G.W., Ford H.A. and Recher H.F. 1994. Conservation of woodland birds in a fragmented rural landscape. Pacific Conservation Biology 1: 245-256.Google Scholar
  5. Brooker M.G., Braithwaite R.W. and Estbergs J.A. 1990. Foraging ecology of some insectivorous and nectarivorous species of birds in forests and woodland of the wet-dry tropics of Australia. Emu 90: 215-230.Google Scholar
  6. Cameron E. 1985. Habitat usage and foraging behavior of three fantails (Rhipidura: Pachycephalidae). In: Keast A., Recher H., Ford H. and Saunders D. (eds), Birds of Eucalypt Forest and Woodlands: Ecology, Conservation and Management. Royal Australasian Ornithologist Union and Surrey Beatty and Sons, Chipping Norton, Australia, pp. 177-191.Google Scholar
  7. Catterall C.P., Kingston M.B. and Park K. 1997. Use of remnant forest habitat by birds during winter in subtropical Australia: patterns and processes. Pacific Conservation Biology 3: 262-274.Google Scholar
  8. Christidis L. and BolesW.E. 1994. The Taxonomy and Species of Birds of Australia and its Territories. Royal Australasian Ornithologists Union, Melbourne.Google Scholar
  9. Crosby M.J., Stattersfield A.J., Collar N.J. and Bibby C.J. 1994. Predicting avian extinction rates. Biodiversity Letters 2: 182-185.Google Scholar
  10. Cunningham R.B., Lindenmayer D.B., Nix H.A. and Lindenmayer B.D. 1999. Quantifying observer heterogeneity in bird counts. Australian Journal of Ecology 24: 270-277.Google Scholar
  11. Department of Arts, Heritage and the Environment (1986) The Last Stand-Managing Australia's Remnant Forests and Woodlands. Australian Government Publishing Service, Canberra.Google Scholar
  12. Diamond J.M. 1975. The island dilemma: lessons of modern biogeographic studies for the design of natural reserves. Biological Conservation 7: 129-145.Google Scholar
  13. Diamond J.M., Bishop K.D. and van Balen S. 1987. Bird survival in an isolated Javan woodland: island or mirror? Conservation Biology 1: 132-142.Google Scholar
  14. Dyrcz A. 1994. Breeding biology and behaviour of the Willie Wagtail Rhipidura leucophrys in the Madang region, Papua-New-Guinea. Emu 94: 17-26.Google Scholar
  15. Engel J. 1986. Split-plot design: model and analysis for count data. Statistica Neerlandica 40: 21-31.Google Scholar
  16. Fenton J. 1997. A primary producer's perspective on nature conservation. In: Hale P. and Lamb D. (eds), Conservation outside nature reserves. University of Queensland, Brisbane, pp. 3-9.Google Scholar
  17. Fischer J. and Lindenmayer D.B. 2002. The conservation value of paddock trees for birds in a variegated landscape in southern New South Wales. 2. Paddock trees as stepping stones. Biodiversity and Conservation 11: 833-849 (this issue).Google Scholar
  18. Ford H.A. and Barrett G. 1995. The role of birds and their conservation in agricultural systems. In: Bennett A., Backhouse G. and Clark T. (eds), People and Nature Conservation. Surrey Beatty and Sons, Chipping Norton, Australia, pp. 128-134.Google Scholar
  19. Ford H.A., Noske S. and Bridges L. 1986. Foraging of birds in eucalypt woodland in north-eastern New South Wales. Emu 86: 168-179.Google Scholar
  20. Forman R.T.T. 1995. Some general principles of landscape and regional ecology. Landscape Ecology 10: 133-142.Google Scholar
  21. Forman R.T.T. and Godron M. 1986. Landscape Ecology. John Wiley and Sons, New York.Google Scholar
  22. Franklin J.F. 1993. Preserving biodiversity: species, ecosystems, or landscapes? Ecological Applications 3: 202-205.Google Scholar
  23. Gascon C., Lovejoy T.E., Bierregaard R.O.J., Malcolm J.R., Stouffer P.C., Vasconcelos H.L. et al. 1999. Matrix habitat and species richness in tropical forest remnants. Biological Conservation 91: 223-229.Google Scholar
  24. Gaston K.J. and Blackburn T.M. 1997. How many birds are there? Biodiversity and Conservation 6: 615-625.Google Scholar
  25. Gazetteer (2000) Australian Geographic Place Names (http: / / / cgi-bin / MAN210Rsh?70181148.48331134.96663185281S155-111Nanangroe1(NSW)).Google Scholar
  26. Gibbons P. and Lindenmayer D.B. 1997. Conserving hollow-dependent fauna in timber-production forests. Environmental Heritage Monograph Series No. 3, Forest Issues 2. NSW NPWS, Australia.Google Scholar
  27. Glanznig A. 1995. Native Vegetation Clearance, Habitat Loss and Biodiversity Decline. Department of the Environment, Sport and Territories, Canberra.Google Scholar
  28. Green R.J. and Catterall C.P. 1998. The effects of forest clearing and regeneration on the fauna of Wivenhoe Park, south-east Queensland. Wildlife Research 25: 677-690.Google Scholar
  29. Grey M.J., Clarke M.F. and Loyn R.H. 1997. Initial changes in the avian communities of remnant eucalypt woodlands following a reduction in the abundance of Noisy Miners, Manorina melanocephala. Wildlife Research 24: 631-648.Google Scholar
  30. Grey M.J., Clarke M.F. and Loyn R.H. 1998. Influence of the Noisy Miner Manorina melanocephala on avian diversity and abundance in remnant Grey Box woodland. Pacific Conservation Biology 4: 55-69.Google Scholar
  31. Hobbs R.J., Saunders D.A. and Arnold G.W. 1993a. Integrated landscape ecology: a Western Australian perspective. Biological Conservation 64: 231-238.Google Scholar
  32. Hobbs R.J., Saunders D.A. and Main A.R. 1993b. Conservation management in fragmented systems. In: Hobbs R.J. and Saunders D.A. (eds),Reintegrating Fragmented Landscapes-Towards Sustainable Production and Nature Conservation. Springer-Verlag, New York, pp. 279-296.Google Scholar
  33. Ingham D.S. and Samways M.J. 1996. Application of fragmentation and variegation models to epigaeic invertebrates in South Africa. Conservation Biology 10: 1353-1358.Google Scholar
  34. James C.D., Landsberg J. and Morton S.R. 1999. Provision of watering points in the Australian arid zone: a review of effects on biota. Journal of Arid Environment 41: 87-121.Google Scholar
  35. Kattan G.H., Alvarez-Lapez H. and Giraldo M. 1994. Forest fragmentation and bird extinctions: San Antonio eighty years later. Conservation Biology 8: 138-146.Google Scholar
  36. Keast A. 1985. Australia's forest and woodland avifauna: an ecological and evolutionary perspective. In: Keast A., Recher H.F., Ford H. and Saunders D. (eds), Birds of Eucalypt Forest and Woodlands: Ecology, Conservation and Management. Royal Australasian Ornithologists Union and Surrey Beatty and Sons, Chipping Norton, Australia, pp. 11-15.Google Scholar
  37. Keast A. 1994. Temporal vocalisation patterns in members of a eucalypt forest bird community-the effects of weather on song production. Emu 94: 172-180.Google Scholar
  38. Keast A. 1995. Habitat loss and species loss: the birds of Sydney 50 years ago and now. Australian Zoologist 30: 3-24.Google Scholar
  39. Landsberg J. and Wylie F.R. 1983.Water stress, leaf nutrients and defoliation: a model of dieback of rural eucalypts. Australian Journal of Ecology 8: 27-41.Google Scholar
  40. Laurance W.F. 1991. Ecological correlates of extinction proneness in Australian tropical rain forest mammals. Conservation Biology 5: 79-89.Google Scholar
  41. Law B.S. and Dickman C.R. 1998. The use of habitat mosaics by terrestrial vertebrate fauna: implications for conservation and management. Biodiversity and Conservation 7: 323-333.Google Scholar
  42. Lindenmayer D.B. and Franklin J.F. 1998. Managing unreserved forest land for biodiversity conservation: the importance of the matrix. CRES Working Paper 1998/3. Centre for Resource and Environmental Studies, Canberra.Google Scholar
  43. Lindenmayer D.B., Pope M.P., Cunningham R.B., Donnelly C.F. and Nix H.A. 1996. Roosting of the Sulphur-crested Cockatoo Cacatua galerita. Emu 96: 209-212.Google Scholar
  44. Lindenmayer D.B., Cunningham R.B., MacGregor C., Tribolet C. and Donnelly C.F. 2001. A prospective longitudinal study of landscape matrix effects on fauna in woodland remnants. I. Experimental design and baseline data. Biological Conservation 101: 157-169.Google Scholar
  45. Luck G.W., Possingham H.P. and Paton D.C. 1999. Bird responses at inherent and induced edges in the Murray Mallee, South Australia. 1. Differences in abundance and diversity. Emu 99: 157-169.Google Scholar
  46. Mac Nally R. 1994. Habitat-specific guild structure of forest birds in southeastern Australia: a regional scale perspective. Journal of Animal Ecology 63: 988-1001.Google Scholar
  47. Mac Nally R., Bennett A.F. and Horrocks G. 2000. Forecasting the impacts of habitat fragmentation. Evaluation of species-specific predictions of the impact of habitat fragmentation on birds in the box-ironbark forests of central Victoria, Australia. Biological Conservation 95: 7-29.Google Scholar
  48. MacArthur R.H. and Wilson E.O. 1967. The Theory of Island Biogeography. Princeton University Press, Princeton, New Jersey.Google Scholar
  49. Margules C.R. and Pressey R.L. 2000. Systematic conservation planning. Nature 405: 243-253.Google Scholar
  50. Mawson P.R. and Long J.L. 1994. Size and age parameters of nest trees used by four species of parrot and one species of cockatoo in south-west Australia. Emu 94: 149-155.Google Scholar
  51. May S.A. and Norton T.W. 1996. Influence of fragmentation and disturbance on the potential impact of feral predators on native fauna in Australian forest ecosystems. Wildlife Research 23: 387-400.Google Scholar
  52. McCullagh P. and Nelder J.A. 1989. Generalized Linear Models, 2nd ed. Chapman & Hall, London.Google Scholar
  53. McIntyre S. and Barrett G.W. 1992. Habitat variegation, an alternative to fragmentation. Conservation Biology 6: 146-147.Google Scholar
  54. McIntyre S. and Hobbs R. 1999. A framework for conceptualizing human effects on landscapes and its relevance to management and research models. Conservation Biology 13: 1282-1292.Google Scholar
  55. Ozolins A. 1999. Abundance and decline of isolated trees in the agricultural landscape of central west New South Wales, B.Sc. Thesis (Honours), The Australian National University, Canberra.Google Scholar
  56. Pell A.S. and Tidemann C.R. 1997. The impact of two exotic hollow-nesting birds on two native parrots in savannah and woodland in eastern Australia. Biological Conservation 79: 145-153.Google Scholar
  57. Pizzey G. and Knight F. 1997. Field Guide to the Birds of Australia. Angus and Robertson, Sydney.Google Scholar
  58. Purdie R. 1995. Conserving biodiversity-threats and solutions: overview. In: Bradstock R.A., Auld T.D., Keith D.A., Kingsford R.T., Lunney D. and Sivertsen D.P. (eds), Conserving Biodiversity: Threats and Solutions. Surrey Beatty and Sons, Chipping Norton, Australia, pp. 410-416.Google Scholar
  59. Pyke G.H. and Recher H.F. 1983. Cencusing Australian birds: a summary of procedures and a scheme for standardisation of data presentation and storage. In: Davies S.J. (ed.), Methods of Censusing Birds in Australia. Proceedings of a symposium organised by the Zoology section of the ANZAAS and the Western Australian Group of the Royal Australasian Ornithologists Union. Department of Conservation and Environment, Perth, pp. 55-63.Google Scholar
  60. Recher H.F. 1991. The conservation and management of eucalypt forest birds: resource requirements for nesting and foraging. In: Lunney D. (ed.), Conservation of Australia's Forest Fauna. Royal Zoological Society of New South Wales, Mosman, Australia, pp. 25-34.Google Scholar
  61. Recher H.F. 1993. The loss of biodiversity and landscape restoration: conservation, management, survival. An Australian perspective. In: Saunders D.A., Hobbs R.J. and Ehrlich P.R. (eds), Nature Conservation 3: Reconstruction of Fragmented Ecosystem. Surrey Beatty and Sons, Chipping Norton, Australia, pp. 141-151.Google Scholar
  62. Recher H.F. 1999. The state of Australia's avifauna: a personal opinion and prediction for the new millennium. Australian Zoologist 31: 11-29.Google Scholar
  63. Recher H.F. and Holmes R.T. 1985. Foraging ecology and seasonal patterns of abundance in a forest avifauna. In: Keast A., Recher H.F., Ford H. and Saunders D. (eds), Birds of Eucalypt Forest and Woodlands: Ecology, Conservation and Management. Royal Australasian Ornithologists Union and Surrey Beatty and Sons, Chipping Norton, Australia, pp. 79-96.Google Scholar
  64. Recher H.F. and Lim L. 1990. A review of current ideas of the extinction, conservation and management of Australia's terrestrial vertebrate fauna. Proceedings of the Ecological Society of Australia 16: 287-301.Google Scholar
  65. Recher H.F. and Serventy D.L. 1991. Long term changes in the relative abundance of birds in Kings Park, Perth, Western Australia. Conservation Biology 5: 90-102.Google Scholar
  66. Recher H.F., Holmes R.T., Schulz M., Schields J. and Kavanagh R. 1985. Foraging patterns of breeding birds in eucalypt forest and woodland of southeastern Australia. Australian Journal of Zoology 10: 399-419.Google Scholar
  67. Renjifo L.M. 1999. Composition changes in a subandean avifauna after long-term forest fragmentation. Conservation Biology 13: 1124-1139.Google Scholar
  68. Robinson D. 1991. Threatened birds in Victoria: their distributions, ecology and future. Vic. Nat. 3: 67-75.Google Scholar
  69. Robinson W.D. 1999. Long-term changes in the avifauna of Barro Colorado Island, Panama, a tropical forest isolate. Conservation Biology 13: 85-97.Google Scholar
  70. Robinson D. and Traill B.J. 1996. Conserving woodland birds in the wheat and sheep belts of southern Australia. Wingspan 6 RAOU Conservation Statement No. 10 Suppl.: 1-16.Google Scholar
  71. Rowley I. and Chapman G. 1991. The breeding biology, food, social organisation, demography and conservation of the Major Mitchell or Pink Cockatoo, Cacatua leadbeateri, on the margin of the Western Australian Wheatbelt. Australian Journal of Zoology 39: 211-261.Google Scholar
  72. Saunders D.A. 1979. The availability of tree hollows for use as nest sites by White-tailed Black Cockatoos. Australian Wildlife Research 6: 205-216.Google Scholar
  73. Saunders D.A. 1985. The effects of clearing for agriculture on the distribution of cockatoos in the southwest of Western Australia. In: Keast A., Recher H.F., Ford H. and Saunders D. (eds), Birds of Eucalypt Forest and Woodlands: Ecology, Conservation and Management. Royal Australasian Ornithologists Union and Surrey Beatty and Sons, Chipping Norton, Australia, pp. 309-321.Google Scholar
  74. Saunders D.A. 1989. Changes in the avifauna of a region, district and remnant as a result of fragmentation of native vegetation: the wheatbelt of Western Australia. A case study. Biologial Conservation 50: 99-135.Google Scholar
  75. Saunders D.A. 1994. Can we integrate nature conservation with agricultural production? Landscape and Urban Planning 28: 55-62.Google Scholar
  76. Saunders D.A. and Curry P.J. 1990. The impact of agricultural and pastoral industries on birds in the southern half of Western Australia: past, present and future. Proceedings of the Ecological Society of Australia 16: 303-321.Google Scholar
  77. Saunders D.A. and de Rebeira C.P. 1991. Values of corridors to avian populations in a fragmented landscape. In: Saunders D.A. and Hobbs R.J. (eds), Nature Conservation 2: the Role of Corridors. Surrey Beatty and Sons, Chipping Norton, Australia, pp. 221-240.Google Scholar
  78. Saunders D.A. and Hobbs R.J. 1995. Habitat reconstruction: the revegetation imperative. In: Bradstock R.A., Auld T.D., Keith D.A., Kingsford R.T., Lunney D. and Sivertsen D.A. (eds), Conserving Biodiversity: Threats and Solutions. Surrey Beatty and Sons, Chipping Norton, Australia, pp. 104-112.Google Scholar
  79. Saunders D.A. and Ingram J. 1995. Birds of Southwestern Australia: an Atlas of Changes in Distribution and Abundance of the Wheatbelt Fauna. Surrey Beatty and Sons, Chipping Norton, Australia.Google Scholar
  80. Saunders D.A., Hobbs R.J. and Arnold G.W. 1993. The Kellerberrin project on fragmented landscapes: a review of current information. Biological Conservation 64: 185-192.Google Scholar
  81. Saunders D.A., Hobbs R.J. and Margules C.R. 1991. Biological consequences of ecosystem fragmentation: a review. Conservation Biology 5: 18-32.Google Scholar
  82. Simpson K. and Day N. 1996. Field Guide to the Birds of Australia. Penguin Books, Ringwood, Australia.Google Scholar
  83. Telleria J.L. and Santos T. 1995. Effects of forest fragmentation on a guild of wintering passeriness: the role of habitat selection. Biological Conservation 71: 61-67.Google Scholar
  84. Thiollay J.-M. 1993. Response of a raptor community to shrinking area and degradation of tropical rain forest in the south western Ghâts (India). Ecography 16: 97-110.Google Scholar
  85. Thiollay J.-M. 1998. Long-term dynamics of a tropical savanna bird community. Biodiversity and Conservation 7: 1291-1312.Google Scholar
  86. Walters J.R., Ford H.A. and Cooper C.B. 1999. The ecological basis of sensitivity of Brown Treecreepers to habitat fragmentation: a preliminary assessment. Biological Conservation 90: 13-20.Google Scholar
  87. Wapstra M. and Taylor R.J. 1998. Use of retained trees for nesting by birds in logged eucalypt forest in north-eastern Tasmania. Aust. For. 61: 48-52.Google Scholar
  88. Watson J. 1999. Some patchy principles: an assessment of the focal species approach on woodland avifauna within northern ACT and surrounding areas of NSW, B.Sc. Thesis (Honours), University of New South Wales, Australian Defence Force Academy, Canberra.Google Scholar
  89. Weekes A.J. 1999. Foraging ecology of the White-throated Treecreeper on Black Mountain, Canberra, B.Sc. Thesis (Honours), The Australian National University, Canberra.Google Scholar
  90. Wiens J.A. 1989. The Ecology of Bird Communities. Vol. 1, Cambridge University Press, Melbourne.Google Scholar
  91. Woinarski J.C.Z. and Recher H.F. 1997. Impact and response: a review of the effect of fire on the Australian avifauna. Pacific Conservation Biology 3: 183-205.Google Scholar
  92. Wyndham E. and Cannon C.E. 1985. Parrots of eastern Australian forests and woodlands: the genera Platycercus and Trichoglossus. In: Keast A., Recher H.F., Ford H. and Saunders D. (eds), Birds of Eucalypt Forest and Woodlands: Ecology, Conservation and Management. Royal Australasian Ornothologists Union and Surrey Beatty and Sons, Chipping Norton, Australia, pp. 141-150.Google Scholar

Copyright information

© Kluwer Academic Publishers 2002

Authors and Affiliations

  • Joern Fischer
    • 1
  • David B. Lindenmayer
    • 1
  1. 1.Centre for Resource and Environmental StudiesThe Australian National UniversityCanberraAustralia

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