Review of Grassland Management in south-eastern ... - Parks Victoria
Review of Grassland Management in south-eastern ... - Parks Victoria
Review of Grassland Management in south-eastern ... - Parks Victoria
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<strong>Parks</strong> <strong>Victoria</strong> Technical Series No. 39<br />
<strong>Grassland</strong> <strong>Management</strong> <strong>in</strong> SE Australia<br />
4 MODELLING MANAGEMENT<br />
One <strong>of</strong> the important roles <strong>of</strong> managers is to document the management approaches that<br />
they utilize for reserve management. The documentation <strong>of</strong> the <strong>in</strong>itial state <strong>of</strong> the reserve and<br />
the management tools applied, and the predicted outcomes <strong>of</strong> these methods, are essential<br />
components <strong>of</strong> this documentation. These outcomes are also essential for the use <strong>of</strong><br />
adaptive management techniques to ref<strong>in</strong>e and modify exist<strong>in</strong>g management practices. This<br />
creates a management framework which is flexible and ma<strong>in</strong>ta<strong>in</strong>s or enhances the system<br />
be<strong>in</strong>g managed rather than document<strong>in</strong>g decl<strong>in</strong>e and degradation <strong>of</strong> these systems or<br />
reserves due to <strong>in</strong>flexibility <strong>of</strong> management.<br />
4.1 Adaptive <strong>Management</strong><br />
Adaptive management is an essential tool to allow for the cont<strong>in</strong>ued improvement <strong>of</strong><br />
grassland management and reserve management as a whole. The role <strong>of</strong> adaptive<br />
management <strong>in</strong> improv<strong>in</strong>g our knowledge <strong>of</strong> grassland responses to alternate management<br />
regimes appears to be little utilized, with m<strong>in</strong>imal evolution <strong>of</strong> management due to its<br />
implementation and <strong>of</strong>ten significant criticisms <strong>in</strong> the consistency <strong>of</strong> its implementation. The<br />
process <strong>of</strong> adaptive management allows for the assessment <strong>of</strong> best management guesses <strong>in</strong><br />
situ and creates a situation <strong>in</strong> which these guesses can evolve towards a more appropriate<br />
management regime. To successfully utilize adaptive management, the development <strong>of</strong> clear<br />
and well-def<strong>in</strong>ed management goals, and the documentation <strong>of</strong> current and future reserve<br />
conditions are required. The cont<strong>in</strong>ued and rigorous implementation <strong>of</strong> these best guess<br />
regimes is required for accurate and fair assessment <strong>of</strong> their outcomes.<br />
The general aims <strong>of</strong> grassland management are clear and simple to def<strong>in</strong>e. The ma<strong>in</strong><br />
concerns are over the methods by which these outcomes are achieved and the<br />
appropriateness <strong>of</strong> these methods. The aims <strong>of</strong> grassland management for the ma<strong>in</strong>tenance<br />
<strong>of</strong> biodiversity values are clearly understood as:<br />
1. the reduction <strong>of</strong> biomass and creation <strong>of</strong> gaps to allow for the regeneration <strong>of</strong> native<br />
plant species; and<br />
2. the maximization <strong>of</strong> habitat complexity and <strong>of</strong> the grassland structure to <strong>in</strong>crease the<br />
probability <strong>of</strong> faunal components persist<strong>in</strong>g and reproduc<strong>in</strong>g <strong>in</strong> the remnant.<br />
These may not always be the goal <strong>of</strong> grassland managers (e.g. <strong>in</strong> degraded grasslands,<br />
shift<strong>in</strong>g the balance between native and exotic species may be the management goal and<br />
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