Managing low-output agroecosystems sustainably: The importance of ecological thresholds

Canadian Journal of Forest Research

Volumn 29, Issue 7, 1999, Pages 1112-1119

  Brown, Joel R ^a   Herrick, Jeffrey ^a   Price, David ^b  

^a NEW MEXICO STATE UNIVERSITY   (United States)

^b U S ARMY ENGINEER RESEARCH AND DEVELOPMENT CENTER   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

AGROECOLOGY; LAND DEGRADATION; LAND MANAGEMENT; THRESHOLD;

EID: 0033500667     PISSN: 00455067     EISSN: None     Source Type: Journal    
DOI: 10.1139/x99-052     Document Type: Conference Paper

References (51)

1. Albaladejo, J.M.M., Roldan, A., and Castillo, V. 1998. Soil degradation and desertification induced by vegetation removal in a semiarid environment. Soil Use Manage. 14: 1-5.
2. Archer, S.R. 1989. Have southern Texas savannas been converted to woodlands in recent history? Am. Nat. 134: 545-561.
3. Archer, S. 1994. Woody plant encroachment into southwestern grasslands and savannas: rates, patterns and proximate causes. In Ecological implications of livestock herbivory in the west. Edited by M. Vavra, W. Laycock, and R. Pieper. Society for Range Management, Denver, Colo. pp. 13-68.
4. Archer, S.R., and Smeins, F.E. 1991. Ecosystem level processes. In Grazing management: an ecological perspective. Edited by R.K. Heitschmidt and J.R. Stuth. Timber Press, Portland, Oreg. pp. 109-139.
5. Ash, A.J., McIvor, J.G., Corfield, J.P., and Winter, W.H. 1995. How land condition alters plant-animal relationships in Australia's tropical rangelands. Agric. Ecosyst. Environ. 56: 77-92.
6. Ash, A.J., Brown, J.R., and Cowan, D.C. 1996. Transitions between vegetation states in tropical tallgrass: falling over cliffs and slowly climbing back. In Conference Papers, 9th Biennial Australian Rangeland Conference, 24-27 Sept. 1996, Port Augusta, South Australia. Edited by L.P. Hunt and R. Sinclair. Australian Rangeland Society. pp. 219-220.
7. Auld, B.A., and Tisdell, C.A. 1987. Economic thresholds and response to uncertainty in weed control. Agric. Syst. 25: 219-227.
8. Beerling, D.J., and Woodward, F.I. 1993. Ecophysiological responses of plants to global environmental change since the last glacial maximum. New Phytol. 125: 641-648.
9. Belsky, A.J. 1996. Viewpoint: western Juniper expansion: is it a threat to arid northwestern ecosystems? J. Range Manage. 49: 53-59.
10. Blackburn, W.H., and Pierson, F.B., Jr. 1994. Sources of variation in interrill erosion on rangelands. In Variability in rangeland water erosion processes. Edited by W.H. Blackburn, F.B. Pierson Jr., G.E. Schuman, and R. Zartman. Soil Science Society of America, Madison Wis. pp. 1-10.
11. Briske, D.D. 1991. Developmental morphology and physiology of grasses. In Grazing management: an ecological perspective. Edited by R.K. Heitschmidt and J.R. Stuth. Timber Press, Portland Oreg. pp. 85-108.
12. Brown, J.R. 1994. Ecology as a basis for rangeland management: performance criteria for testing models. Trop. Grassl. 28: 206-213.
13. Brown, J.R., and Ash.,A.J. 1996. Managing resources: moving from sustainable yield to sustainability in tropical rangelands. Trop. Grassl. 30: 47-57.
14. Brown, J.R., and Carter, J. 1998. Spatial and temporal patterns of exotic shrub invasion in an Australian tropical grassland. Landscape Ecol. 13: 93-102.
15. Brown, J.R., and MacLeod, N.D. 1996. Integrating ecology into natural resource management policy. Environ. Manage. 20: 289-296.
16. Brown, J.R., and McIvor, J.G. 1993. Ecology of woody weed invasions in the tropical woodlands of north-eastern Australia: implications for management. In Proceedings of the 10th Australian Weeds Conference, Weed Society of Queensland, 6-10 Sept. 1993, Brisbane, Australia. pp. 471-474.
17. Brown, J.R., Scanlan, J.C., and McIvor, J.G. 1998. Herbaceous competition as a limiting factor in shrub increase: a test with different growth forms. J. Veg. Sci. 9: 829-836.
18. Carter, J.O., and Cowan, D.C. 1993. Population dynamics of prickly acacia, Acacia nilotica subsp. Indica (Mimosaceae). In Pests of pastures: weed, invertebrate and disease pests. Edited by E.S. Delfosse. CSIRO Information Services, Melbourne, Australia. pp. 128-132.
19. Coble, H.A., and Mortensen, D.A. 1992. The threshold concept and its application to weed science. Weed Technol. 6: 191-195.
20. Conner, J.R. 1994. Assessing the socioeconomic impacts of climate change on grazing lands. Clim. Change, 28: 143-157.
21. Cousens, R., and Mortimer, M. 1995. Dynamics of weed populations. Cambridge University Press, Cambridge, U.K.
22. Friedel, M.H. 1991. Range condition assessment and the concept of thresholds: a viewpoint. J. Range Manage. 44: 4 22-426.
23. Gardener, C.J., McIvor, J.G., and Williams, J. 1990. Dry tropical rangelands: solving one problems and creating another. In Australian ecosystems: 200 years of utilization, degradation and reconstruction. Edited by D.A. Saunders, A.J.M. Hopkins, and R.A. How. Ecological Society of Australia, Canberra, Australia. pp. 185-194.
24. Giampietro, M., Cerretelli, G., and Pimentel, D. 1992. Energy analysis of agricultural ecosystem management: human return and sustainability. Agric. Ecosyst. Environ. 38: 219-244.
25. Grice, A.C., and Brown, J.R. 1996. An overview of the current status of weed management in Australian rangelands. In Proceedings of the 11th Australian Weeds Conference, 30 Sept - 3 Oct. Melbourne. Weed Science Society of Victoria, Melbourne, Australia. pp. 195-204.
26. Grumbine, R.E. 1994. What is ecosystem management? Conserv. Biol. 8: 27-38.
27. Grumbine, R.E. 1997. Reflections on "What is ecosystem management?" Conserv. Biol. 11: 41-47.
28. Haeuber, R., and Franklin, J. 1996. Perspectives on ecosystem management. Ecol. Appl. 6: 692-693.
29. Heissenbuttel, A.E. 1996. Ecosystem management-principles for practical application. Ecol. Appl. 6: 730-732.
30. Holling, C.S. 1996. Surprise for science, resilience for ecosystems, and incentives for people. Ecol. Appl. 6: 733-735.
31. Holling, C.S. 1973. Resilience and stability and of ecological systems. Annu. Rev. Ecol. Syst. 4: 1-23.
32. Humphries, S.E., Groves, R.H., and Mitchell, D.S. 1991. Plant invasions of Australian ecosystems: a status review and management directions. Report to the Australian National Parks and Wildlife Sevice, Endangered Species Program and CSIRO, Kowari 2, ANPWS, Canberra, Australia.
33. Kay, J.J. 1991. A non-equilibrium thermodynamic framework for discussing ecosystem integrity. Environ. Manage. 15: 483-495.
34. Kriticos, D., Brown, J.R., Radford, I., and Nicholas, M. 1999. Biological control of invasive perennial plants in rangeland ecosystems: Acacia nilotica as a case study. Biol. Control. In press.
35. Laycock, W.A. 1991. Stable states and thresholds of range condition on North American rangeland: a viewpoint. J. Range Manage. 44: 427-433.
36. May, R.M. 1977. Thresholds and breakpoints in ecosystems with a multiplicity of stable states. Nature (London), 269: 471-477.
37. McIvor, J.G., and Gardener, C.G. 1990. Soil and vegetation characteristics of dry tropical rangelands for prediciting regeneration in exclosures In Australian ecosystems: 200 years of utilization, degradation and reconstruction. Edited by D.A. Saunders, A.J.M. Hopkins, and R.A. How. Ecological Society of Australia, Canberra, Australian Capital Territory. pp. 273-277.
38. McKeon, G.M., Day, K.A., Howden, S.M., Mott, J.J., Orr, D.M., Scattini, W.J., and Weston, E.J. 1990. Northern Australian savannas: management for pastoral production. J. Biogeogr. 17: 355-372.
39. McNaughton, S.J. 1993. Biodiversity and ecosystem function of grazing ecosystems. In Biodiversity and ecosystem function. Edited by E.D. Schulze and H.A. Mooney. Springer-Verlag, New York. pp. 361-383.
40. Miller, E.N., and Scanlan, J.C. 1997. Linking ecology and economics for woody weed management in Queensland rangelands. In Proceedings of the 41st Australian Agricultural and Resource Economics Society, 20-25 Jan. 1997, Gold Coast, Queensland.
41. Neilson, R.P. 1986. High-resolution climatic analysis and southwestern biogeography. Science (Washington, D.C.), 232: 27-34.
42. Nicholls, N. 1997. Increased Australian wheat yields due to recent climate trends. Nature (London), 387: 484-485.
43. Noble, J.C. 1998. The delicate and noxious scrub. CSIRO Press, Melbourne, Australia.
44. Risser, P.G. 1995. Biodiversity and ecosystem function. Conserv. Biol. 9: 742-746.
45. Schlesinger, W.H., Raikes, J.A., Hartley, A.E., and Cross, A.F. 1996. On the spatial pattern of soil nutrients in desert ecosystems. Ecology, 77: 364-374.
46. Scifres, C.J. 1980. Brush management. Texas A&M University Press, College Station.
47. Stafford Smith, M., Morton, S., and Ash. A. 1997. On the future of pastoralism in Australia's rangelands. In Frontiers in ecology. Edited by N. Klomp and I. Lunt. Elsevier, Oxford, U.K. pp. 7-16
48. Stuth, J.W., Conner, J.R., and Heitschmidt, R.K. 1991. The decision making environment and planning paradigm. In Grazing management: an ecological perspective. Edited by R.K. Heitschmidt and J.R. Stuth. Timber Press, Portland, Oreg. pp. 201-223.
49. Thurow, T.L. 1991. Hydrology and erosion. In Grazing management: an ecological perspective. Edited by R.K. Heitschmidt and J.R. Stuth. Timber Press, Portland Oreg. pp. 141-159.
50. Tilman, D., Wedin, D., and Knops, J. 1996. Productivity and sustainability influenced by biodiversity in grassland ecosystems. Nature (London), 379: 718-720.
51. Westoby, M., Walker, B.H., and Noy-Meir, I. 1989. Opportunistic management for rangelands not at equilibrium. J. Range Manage. 42: 266-274.