Oxford university wildlife unit finds biodiversity action plans failing to halt steep decline in dormice , hedgehogs and wildcats
牛津大学野生动物保护机构发现生物多样性行动计划并未遏制住睡鼠,刺猬和野猫数量的锐减。
Dormice therefore spend a large proportion of their lives sleeping ; either hibernating in winter or in torpor in summer .
因此,榛睡鼠一生中,大部分时间都在睡觉中度过:冬天有冬眠,夏天有休眠。
Unlike other small mammals who are able to breed prolifically , dormice usually have only one litter a year , sometimes two , which means that a poor breeding year can have a heavy impact on a population .