Table 4 Explanatory variables
From: Movement patterns of an arboreal marsupial at the edge of its range: a case study of the koala
Variable | Type | Full description |
|---|---|---|
Sex | Categorical | Sex of each animal |
Tree condition | Scale | Average condition (scale 1 [poor] to 6, based on dieback) of the trees used by each koala – calculated from the ‘tree use’ dataset |
Total Nitrogen | Continuous | Soil total nitrogen content within home ranges - derived from geology mapping of Queensland (The Queensland combined soils dataset) |
Annual rainfall | Continuous | Average annual rainfall (mm) for each site |
2Â month rainfall | Continuous | Totalled rainfall (mm) at each site 2Â months prior to each koala being collared |
Temperature | Continuous | Average annual min/max temp (°C) at each site |
Edge distance | Continuous | Distance (km) of each site from the western edge of the koala’s geographical range – measured in ArcGIS 10 (ESRI, Australia) using koala distribution maps |
Freestanding water | Categorical | Availability of freestanding water (no water, creek water, dam water) |
Bioregion | Categorical | Bioregion (Mulga Lands, Mitchell Grass Downs, Brigalow Belt South) |
Basin | Categorical | Basin (Warrego, Moonie, Balonne-Condamine) |
Catchment | Categorical | Catchment (Mungallala, Warrego, Condamine, Moonie) |