Skip to main content

Table 2 Description of the five clusters

From: Objective sampling design in a highly heterogeneous landscape - characterizing environmental determinants of malaria vector distribution in French Guiana, in the Amazonian region

Symbol and color (see Figures3 and4)

Characteristics in the geographical space (Figure3)

Characteristics in the environmental variable space (Figure4)

Name of thelandscape context

Light gray disks

Sites located very near the ComtƩ river

Far from gold mining sites and unfragmented forest; close to floodplains, the ComtƩ river and water (from remote sensing); low altitude and slope; long or medium lengths of ComtƩ river banks within 200 m

Riparian area

Red triangles

Sites located on a plain, corresponding to a zone devoted to mixed vegetable gardening

Far from gold mining sites and unfragmented forest; close to buildings, water, basins and greenhouses; low proportion of forest; medium number of building; medium and high number of greenhouses

Market gardens

Yellow stars

Sites located on hills within a zone devoted to fruit culture

High altitude and slope, far from water, the ComtƩ river, flood plains, greenhouses and basins; within 200 m: no buildings, greenhouses or basin; short lengths of roads; length of the ComtƩ river null; high proportion of forest

Orchards

Blue diamonds

Isolated sites in non or slightly degraded forest

Shares the majority of Orchards landscape context features, but exhibits higher distances to buildings, shorter lengths of road within 200 m and lower distances to unfragmented forest

Forest

Black squares

Sites situated between the market gardens and the orchards

Difficult to characterize by interpreting the FAMG. Field observations tend to associate such a cluster with i) the presence of very degraded forest patches which are difficult to exploit because of swamps, or ii) numerous patches of fallowed land (4 years and older), corresponding to a stage of the crop rotation

High fallows