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Biology Articles » Zoology » Intrinsic and climatic factors in North-American animal population dynamics » Table 3

Table 3
- Intrinsic and climatic factors in North-American animal population dynamics

Spectral analysis of the individual climatic indices and fur-count records. As in Table 2, the main periods are significant at the 99% level and secondary periods at the 95% level in MTM. The analysis after removing the trend yields the same periods, except 170 years, in the fur-count records and the NHT index.

Time series
Main periods
Secondary periods

NAO
  3, 3.5
ENSO
4
2
NHT
170, 2.5
2
Bear
170, 3, 2.5
 
Beaver
170, 3, 2.5
 
Fisher
170, 3, 2.5
 
Fox
170
3, 2.5
Lynx
170, 10, 2.5
3
Marten
170, 3
10, 2.5
Mink
170, 3, 2.5
 
Muskrat
170, 3
2
Otter
170, 3, 2.5
 
Wolf
170, 2.5
 
Wolverene
170, 3, 2.5
 


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