کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1353647 | 980677 | 2014 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Skull-Based Method of Age Determination for the Brown Bear Ursus arctos Linnaeus, 1758
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Due to the lack of a proper technique for determining the ages of brown bears, a simple and straightforward method that is based on published data and our own observations is proposed. This method is based on the simultaneous use of the following different skull parameters to more accurately determine the ages of brown bears: size and weight parameters, degree of obliteration of the joints, degree of wear of the teeth, and development of the flanges. The proposed method contributes to non-destructive age determination, allows for the discrimination of immature and adult bears and also classifies the skulls of adult animals into one of the five selected age groups.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Achievements in the Life Sciences - Volume 8, Issue 2, October 2014, Pages 137–141
Journal: Achievements in the Life Sciences - Volume 8, Issue 2, October 2014, Pages 137–141
نویسندگان
V.Yu. Guskov,