Figure 1.
The Daly catchment and pastoral and horticultural properties.
The map inset shows the Northern Territory with pale shading and the Daly catchment in black. A) Rivers, protected areas and boundaries of properties (cadastre). Two large national parks extend into the north-east corner of the catchment: Nitmiluk National Park and the southern portion of Kakadu National Park. Fish River Indigenous Protected Area is in the north-west portion of the catchment. B) Size distribution of the 440 properties included in our survey.
Figure 2.
Example choice set presented to respondents in survey.
Figure 3.
Attribute levels and changes for the choice experiment.
The survey provided respondents with three alternatives: conservation covenant, conservation management agreement, or sell property. The choice experiment explored two attributes that might influence respondents’ choices: payment level as a percentage of stewardship costs (defined here as the additional costs of managing land for conservation, over and above routine property management) and change in extent and configuration of conservation management, defined relative to current configuration (From) and future configuration (To). We considered four payment levels and five changes in configuration.
Table 1.
Conditional mixed-effects logit model.
Table 2.
Scenarios compared using Marxan with Zones.
Table 3.
Estimated probabilities of participation for three payment scenarios.
Table 4.
Summary results from Marxan with Zones for the four scenarios, including number of objectives met, total cost, total cost of stewardship agreements, total area, total area selected for stewardship, average and median property size, percentage of properties selected for stewardship, average probability of participation of selected properties (average probability across all properties is 32.7% with a range from 0.9% to 78.7%), and percentage of total probability of participation in selected properties (objective was 15% for scenarios 3 and 4).