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1 May 2003 FAMILY BREAKUP IN BROWN BEARS: ARE YOUNG FORCED TO LEAVE?
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Abstract

In brown bears (Ursus arctos), nursing of young >1 year of age has a positive effect on their growth rate but is energetically costly for mothers and reduces the number of litters a female can produce during her lifetime. We followed radiomarked families to study their behavior during the period of family breakup. Yearlings separated from their mothers during the mating season and most family breakups were associated with the presence of an adult male, suggesting that termination of maternal care was not initiated by offspring.

Bjørn Dahle and Jon E. Swenson "FAMILY BREAKUP IN BROWN BEARS: ARE YOUNG FORCED TO LEAVE?," Journal of Mammalogy 84(2), 536-540, (1 May 2003). https://doi.org/10.1644/1545-1542(2003)084<0536:FBIBBA>2.0.CO;2
Accepted: 28 September 2002; Published: 1 May 2003
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