From: Intrinsic and climatic factors in North-American animal population dynamics
PC-1 | PC-2 | |||
---|---|---|---|---|
Main periods | Secondary periods | Main periods | Secondary periods | |
Furs | 170 3 | 2.5 | 2.5 | 40 |
Furs+NAO | 160 3 | 2.5 | 3.5 | 40 2 |
Furs +ENSO | 160 3 | 2.5 | 4 2.5 2 | 30 |
Furs+temp | 170 3 | 2.5 | 44 2.5 | 3.5 |