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

  • William O. Pruitt, Jr. Department of Zoology, The University of Manitoba, Winnipeg, Manitoba, Canada R3T 2N2
Keywords: snow, snow index, Rangifer, caribou, reindeer, api index

Abstract

A total of 2177 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 1395 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.
Published
1990-09-01
How to Cite
Pruitt, Jr.W. O. (1990). Clarification of some api characteristics in relation to caribou (Rangifer tarandus). Rangifer, 10(3), 133-137. https://doi.org/10.7557/2.10.3.843