Multi-scale habitat influences sprainting and group size of a freshwater-obligate smooth-coated otter (Lutrogale perspicillata) in Tungabhadra Otter Conservation Reserve, India

Ecological Processes

Table 1 Principal component loadings from 60 sites for stream attributes in Tungabhadra Otter Conservation Reserve

Stream attribute	PC1	PC2	PC3
Total stream power	0.52	− 0.25	− 0.22
Distance to the most downstream pixel of the reach	0.32	− 0.42	0.69
Area of catchment	− 0.48	0.29	− 0.16
River geometry	− 0.009	0.45	0.42
River area	0.68	0.35	− 0.020
Slope	− 0.72	− 0.41	− 0.13
Stream gradient	− 0.05	0.08	0.65
Soil erosion	− 0.34	0.77	0.05
Order strata	0.75	0.18	− 0.28
Variance	2.27	1.46	1.25
Percentage of variance	25.31	16.27	13.92
Cumulative percentage of variance	25.31	41.58	55.51

Bold font indicates the loadings used to interpret the meaning of the principal component