Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/7092
Title: Management of woody weeds in the Australian rangelands: a bioeconomic approach
Contributor(s): Zull, Andrew (author); Cacho, Oscar (supervisor)orcid ; Lawes, Roger (supervisor)
Conferred Date: 2010
Copyright Date: 2010
Open Access: Yes
Handle Link: https://hdl.handle.net/1959.11/7092
Abstract: The encroachment of woody weeds within Australian rangeland systems poses a significant threat to the 12 billion dollar Australian grazing industry. Woody weeds reduce stock carrying capacities, increase mustering effort, impede cattle from accessing waterways, and some species poison livestock. Graziers are faced with the arduous task of weighing up the costs and benefits of weed management strategies in these vast, remote, heterogeneous landscapes with low economic returns and limited available resources. This is further complicated by the episodic recruitment of woody weeds in response to climate. Moreover, the decision making process is made even more difficult with the complexities of multispecies infestations. This analysis provides important information which can assist weed managers in deciding which strategies to adopt for woody weed infestations. To date ecological population and economic optimisation models have not been combined to establish integrated weed management (IWM) policies for woody weeds within rangeland grazing systems. The woody-weed decision model presented in this research derives such polices while capturing key ecological processes and maintaining economic robustness.
Publication Type: Thesis Doctoral
Field of Research Codes: 140201 Agricultural Economics
Rights Statement: Copyright 2010 - Andrew Zull
HERDC Category Description: T2 Thesis - Doctorate by Research
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