Case Study Arctic Ground Squirrels

Satisfactory Essays

Arctic ground squirrels (Urocitellus parryii) hibernate for 6-8 months out of the year and become active during the spring and summer months. During their short active season, ground squirrels have to reproduce before fattening and preparing for the next cycle of hibernation. Timing of seasonal life-cycle events (ex: emergence from hibernation) and reproductive requirements differs between sexes. Due to sex-specific differences in reproductive requirements, we predicted that time and energy budgets would differ between the sexes in the following ways: Males would spend more time aboveground and be more active than females prior to testicular regression but decrease their activity following the breeding season. Females would spend more

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