| Abstract: | Based on 65 free-ranging gray wolves (Canis lupus) of known age and 25 of estimated age examined during summers of 1970-2004 in northeastern Minnesota, body mass of both males and females peaked at 5 or 6 years of age, with mean masses of 40.8 kg and 31.2 kg, respectively. Testis size varied as a function of age and month through at least 8 years of age, with length plus width ranging from 1.9 to 7.8 cm. Most females aged 4-9 years bred based on assessment of nipple sizes; those that had not bred had average lower body mass than those that had. This is the 1st report of such data from known-aged wolves. |
| Genre: | Article |
| ProdID: | 1016590 |
| Citation Author: | Mech, L. D. |
| Citation Contributing Office: | Northern Prairie Wildlife Research Center |
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| Citation End Page: | 84 |
| Citation Issue: | 1 |
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| Citation Language: | English |
| Citation Larger Work Title: | Journal of Mammalogy |
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| Citation Number Of Pages: | 5 |
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| Citation Phsyical Description: | p. 80-84 |
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| Citation Search Results Text: | Age-related body mass and reproductive measurements of gray wolves in Minnesota; 2006; Article; Journal; Journal of Mammalogy; Mech, L. D. |
| Citation Start Page: | 80 |
| Citation Volume: | 87 |
| Citation Year: | 2006 |
| Type: | citation/reference |
| Text: | Age-related body mass and reproductive measurements of gray wolves in Minnesota; 2006; Article; Journal; Journal of Mammalogy; Mech, L. D. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Sun, 1 Jan 2006 00:00 -0600 |
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