Assessment of the Age Structure of Sable Samples Using Three Methods of Age Determination

Assessment of the Age Structure of Sable Samples Using Three Methods of Age Determination The age structure of sable samples has been analyzed on the basis of parameters obtained by three methods of age determination: by annual cementum layers (Klevezal, 1988), canine root canal width (Smirnov, 1960), and the degree of development of the mastication muscles and sagittal crest on the skull (Timofeev and Nadeev, 1955). It has been found that the first two methods produce similar results (r = 0.95) that are suitable for use in the practice of monitoring and commercial game management. The third method is simpler but less accurate and can be recommended only for the preliminary assessment of age ratios in populations. The results of such assessment by the method proposed by Klevezal are sufficiently accurate for a detailed analysis of population structure and dynamics of its reproductive core, but this method is laborious and involves a complicated histological procedure. When large samples are studied for the purposes of monitoring and management planning, the method proposed by Smirnov is preferable. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Ecology Springer Journals

Assessment of the Age Structure of Sable Samples Using Three Methods of Age Determination

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Publisher
Springer Journals
Copyright
Copyright © 2004 by MAIK “Nauka/Interperiodica”
Subject
Life Sciences; Ecology
ISSN
1067-4136
eISSN
1608-3334
D.O.I.
10.1023/B:RUSE.0000046974.34432.f5
Publisher site
See Article on Publisher Site

Abstract

The age structure of sable samples has been analyzed on the basis of parameters obtained by three methods of age determination: by annual cementum layers (Klevezal, 1988), canine root canal width (Smirnov, 1960), and the degree of development of the mastication muscles and sagittal crest on the skull (Timofeev and Nadeev, 1955). It has been found that the first two methods produce similar results (r = 0.95) that are suitable for use in the practice of monitoring and commercial game management. The third method is simpler but less accurate and can be recommended only for the preliminary assessment of age ratios in populations. The results of such assessment by the method proposed by Klevezal are sufficiently accurate for a detailed analysis of population structure and dynamics of its reproductive core, but this method is laborious and involves a complicated histological procedure. When large samples are studied for the purposes of monitoring and management planning, the method proposed by Smirnov is preferable.

Journal

Russian Journal of EcologySpringer Journals

Published: Nov 18, 2004

References

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