Skip to main content

Advertisement

Table 1 Descriptions and definitions of variables used in this study

From: Habitat use by giant pandas Ailuropoda melanoleuca in the Wanglang Nature Reserve, Sichuan, China

Scale Variable Description
Microhabitat scale Slope aspect (deg) Nine categories: no aspect (slope of <5°), north, northeast, east, southeast, south, southwest, west, and northwest
Slope (deg) Five categories: <10°, 10° to 20°, 20° to 30°, 30° to 40°, and ≥40°
Canopy (%) Canopy of overstory in sampling plot, four categories: <25%, 25% to 50%, 50% to 75%, and ≥75%
Shrub coverage (%) Coverage of shrubs in the sampling plot, four categories: <25%, 25% to 50%, 50% to 75%, and ≥75%
Bamboo coverage (%) Coverage of bamboo in the sampling plot, four categories: <25%, 25% to 50%, 50% to 75%, and ≥75%
Tree size (cm) Average breast diameter (DBH) of trees in each 100-m2 square plot nearest to the center of a 400-m2 plot
Tree dispersion (m) Average distance of the nearest tree to the center in each 100-m2 square plot
Tree density Average number of trees in two 20-m2 rectangular transects in a 400-m2 plot
Shrub size (cm) Average DBH of shrubs in each 100-m2 square plot nearest to the center of a 400-m2 plot
Shrub dispersion (m) Average distance of the nearest shrub to the center in each 100-m2 square plot
Shrub density Average number of shrubs in two 20-m2 rectangular transects in a 400-m2 plot
Fallen-log density Total number of fallen logs (>10 cm in diameter) in a 400-m2 plot
Tree stump density Total number of tree stumps (> 10 cm in diameter) in a 400-m2 plot
Foraging site scale Bamboo density Number of culms in a 1 × 1-m bamboo site
Old-bamboo size (mm) Average basal diameter of culms in a 1 × 1-m bamboo site (five old bamboo culms were measured randomly at each site)
Old-bamboo height (m) Average height of culms in a 1 × 1-m bamboo site (five old bamboo culms were measured randomly at each site)
Young-bamboo density Number of young bamboo culms in a 1 × 1-m bamboo site
Young-bamboo proportion (%) Proportion of young bamboo culms in a 1 × 1-m bamboo site