Transitions across thresholds of vegetation states in the grazed rangelands of Western Australia

Transitions across thresholds of vegetation states in the grazed rangelands of Western Australia Journal Article

The Rangeland Journal

  • Author(s): Watson, I. W., Novelly, P. E.
  • Published: 2012
  • Volume: 34

Abstract: Thresholds and transitions between vegetation states are accepted components of models of rangeland dynamics. By definition, transitions represent changes from one state to another that are enduring, and are unlikely to be reversed within an acceptable management time frame or without significant inputs of management. A monitoring dataset, containing 306 grassland sites and 919 shrubland sites, was used to identify transitions that have occurred in the pastoral rangelands of Western Australia between 1993 and 2010. The grassland sites were assessed on five occasions and the shrubland sites on three occasions. Transition between vegetation states was assessed using the expert knowledge of the authors. A total of 11% of the grassland sites and 1% of the shrubland sites were determined to have undergone a transition, negative as well as positive from a pastoral perspective, over the sampling period. It is argued that, once a transition has occurred, both pastoral managers and government regulators need to adjust to the new conditions, altering management to best address the new state and altering regulatory expectations so that range condition is assessed within the context of the current state and its further capacity to change.

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Suggested Citation
Watson, I. W., Novelly, P. E., 2012, Transitions across thresholds of vegetation states in the grazed rangelands of Western Australia, Volume:34, Journal Article, viewed 13 August 2022, https://www.nintione.com.au/?p=2640.

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