Clarification of some api characteristics
in relation to caribou
(Rangifer tarandus)

William 0. Pruitt, Jr.

Department of Zoology,
The University of Manitoba,
Winnipeg, Manitoba, Canada
R3T 2N2

 

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Pruitt, W.O., Jr. 1990. Clarification of some api characteristics in relation to caribou (Rangifer tarandus). Rangifer, Special Issue No. 3: 133-137.

 

Abstract

A total of 2,177 comparisons of api hardness vs. density in northern Saskatchewan, southeastern Manitoba and northeastern Finland revealed no consistent correlation (r varied from +.70 to -.17).

A total of 1,395 comparisons of horizontal hardness of the top layer of api to vertical hardness of the same layer of api in southeastern Manitoba, northeastern Finland and far eastern middle Finland revealed no consistent correlation (r varied from +.99 to -.20). Therefore one cannot substitute density for hardness nor horizontal hardness of the top layer for vertical hardness of the top layer in the terms of the Värriö Snow Index.

Keywords: snow, snow index, Rangifer

Rangifer, Special Issue No. 3, 1990: 133-137

 


 

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