Behavior and activity budgets of wild breeding polar bears (Ursus maritimus)

摘要: We quantify the first complete description of breeding behavior and activity budgets an undisturbed pair adult polar bears, observed 24 h/d for 13 d from 2 to 15 May 1997, at Radstock Bay, Devon Island, Nunavut, Canada. The male herded female area 1–2 km2, where we them throughout observation period. All behaviors were documented when her 2.5-yr-old cub being followed by male, through separation its mother, a week intense interactions preceding several days with copulation, after which they parted. They mated 51, 86, 66, 150 min on 9–10, 12, 13, 14 May, respectively, parted 14–15 May. deterred three challengers. peak season bears runs early April mid-May, although additional mating has been in June. Timing duration copulations wild similar reports zoos. Induced ovulation, intrasexual competition, fitness, system, potential consequences climate warming are discussed insights made possible documentation reproductive bears.