Table 1 in Road Permeability Index as a tool for mitigation planning of road impacts on wildlife in Colombia: a case study using mammals

Table 1. Description of landscape variables used to calculate the Road Permeability Index (RPI) for Yuma road. Although the variable ‘exotic predators’ is not a landscape feature, it was included because the presence of dogs affects fauna movement patterns (Vanak and Gompper 2010). VariableDescriptionForest coverNative Tropical Moist Forest, in some cases highly disturbed, small patches (<1 ha)WetlandsLowlands flooded by water, either permanently or seasonally, usually with vegetation on itHerbaceous vegetationNon-woody vegetation (herbs) and shrubs, sometimes with sparse arboreal elements on itWater bodiesRivers or watercourses, a lake, a lagoonSilvicultureAreas with cultivation of trees, mainly rubber (Hevea brasiliensis)Cultivated fieldsAgricultural areas with annual or perennial cropsPasturesGrassland areas for cattle growing, sometimes with weeds and sparse trees on itHousingAny type of construction for people to live in, but with a certain degree of aggregationIndustrial infrastructureAny facility required to support industrial activities, mainly oil industry infrastructureRoad networksInterconnected roads and other infrastructure (e.g., highways, primary and secondary roads)Exotic predatorsUsually the presence of owned dogs, sometimes rural free-ranging dogsSurrounding landscapeNative habitat surrounding each sampling window