Journal
NORTHEASTERN NATURALIST
Volume 16, Issue 4, Pages 563-576Publisher
HUMBOLDT FIELD RESEARCH INST
DOI: 10.1656/045.016.n406
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We used nest boxes to study communal nesting and breeding habits of Glaucomys volans (Southern Flying Squirrel) at high elevations over a wide geographic range in western Virginia from 1985 to 1996. Of 320 occupied nest boxes, 19.1% contained litters, 20.3% contained solitary adults, 45.9% had adult aggregations, and 14.7% contained individuals or aggregations of unknown age. Aggregation size ranged from 2-12 individuals. Group size appeared larger during winter months, while the greatest number of aggregations peaked between June and August; however, neither trend was significant. Females were significantly more numerous than males in mixed-age aggregations, while males were significantly more abundant than females in adult aggregations. The breeding season, from first conception to last weaning, lasted 46-48 weeks, from the fourth week of January through the second week of December. Two distinct parturition peaks were evident in late March to mid-April and mid-August to mid-September. Our data support the hypothesis that reproductive activity of Southern Flying Squirrels varies by latitude and is primarily determined by photoperiod length, at least in temperate areas.
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