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1 September 2011 Evidence of Multiple Annual Litters in Glaucomys sabrinus (Northern Flying Squirrel)
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Abstract

Recently, Patterson and Patterson (2010) documented a single Glaucomys sabrinus (Northern Flying Squirrel) having two litters in a single year in southern Ontario, Canada. We confirm this record and provide evidence for two new observations; 1) Northern Flying Squirrels will attempt a second litter after raising a successful first litter; and 2) Northern Flying Squirrels can be lactating and pregnant at the same time. We also present data on the frequency of polyestry in a single year. In 2008, 3 of 10 radio-collared flying squirrels in southern New Brunswick, Canada attempted two litters. The first litter was born in early June, and the second litter in mid-August. Our data suggest that polyestry in Northern Flying Squirrels may be relatively common in some years.

Matthew J. Smith, Graham J. Forbes, and Matthew G. Betts "Evidence of Multiple Annual Litters in Glaucomys sabrinus (Northern Flying Squirrel)," Northeastern Naturalist 18(3), (1 September 2011). https://doi.org/10.1656/045.018.0312
Published: 1 September 2011
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