نوع مقاله : مقاله پژوهشی
نویسندگان
گروه زیست شناسی، دانشکده علوم، دانشگاه زنجان، زنجان، ایران
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
In this research the weight changes of (Glis glis Linnaeus, 1766) was studied during their hibernation in Guilan province. The average weight of the male adult was measured 180 gr and the female adult one 175 gr before their hibernation in the temperature of 25 0c. It was observed that the activity of the animal for getting food was much higher in the lab and in their natural places. By reduction of the temperature in the first day of October (October) and in the middle of November (November), the weight of the male adult one increased to 195 gr and the weight of the female one to 190 gr in the temperature below 18 0 c in the start of the hibernation. These rodents were studied both in their natural environment and in the lab within 180 days in the temperature of 15 0 c. The hibernation lasted for 36 days and 32 days for the male and female samples respectively. They lost more weight from the first week to the sixth week. They lost half a gram of their weight in one day. The rate of weight reduction was decreased from the sixth week to awaking completely from hibernation and they lost 0.25 gr of their weight in one day. The observations in this research showed that the female one awakens from sleep5 to 6 days sooner than the male ones do, and they mate a week after.
کلیدواژهها [English]
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