Table 2 Data and standardisation approaches to derive suitability layers for the MCDA procedure
Suitability criterion | Source | Type | Standardisation | Shape | |
|---|---|---|---|---|---|
x jmin | x jmax | ||||
Warthog habitat suitability | African mammals databank (http://www.gisbau.uniroma1.it/amd/) | Continuous probability surface (habitat suitability) | 1 | RiskUniform(35,50)1 | Linear decreasing2 |
Bushpig (P. porcus) habitat suitability | African mammals databank | Continuous probability surface (habitat suitability) | 1 | RiskUniform(10,37)1 | Linear decreasing2 |
Bushpig (P. larvatus) habitat suitability | African mammals databank | Continuous probability surface (habitat suitability) | 1 | RiskUniform(11,26)1 | Linear decreasing2 |
Giant forest hog habitat suitability | African mammals databank | Continuous probability surface (habitat suitability) | 1 | RiskUniform(11,40)1 | Linear decreasing2 |
Pig population density | FAO GLW (http://www.fao.org/ag/AGAInfo/resources/en/glw/GLW_dens.html) | Predicted density surface pigs/km2 (adjusted to match FAOSTAT 2005 national totals) | 0 | RiskUniform(1,14)1 | Linear increasing |
Ornithodoros spp. habitat suitability | Unpublished data (Vial and Estrada-Pena) | Continuous probability surface (habitat suitability) | 10 | 100 | Linear increasing |
Travel time to market centres >20,000 | Harvest Choice (http://harvestchoice.org/products/data) | Raster describing travel time (hrs) | 0 | RiskUniform(15,30)1 | Linear decreasing |