【摘要】 2006年5月8日~6月22日,采用焦点动物取样法,我们对藏北黑颈鹤(Grus nigricollis)孵卵期的行为活动进行了观测。结果表明:雌雄鹤各种行为活动的时间分配存在一定差异,雌鹤繁殖行为较雄鹤高,但警戒较低;雌雄黑颈鹤的行为表现出一定的节律性,雌雄鹤的繁殖和取食行为在不同时段上表现出同步性和异步性;雌雄鹤共同参与繁殖,但雌性担任繁殖的主要任务,雄性重视保护资源。藏北黑颈鹤孵卵期的行为活动方式是对当地环境适应的进化稳定策略。更多还原

【Abstract】 To provide the basic information on adaptability of Black- necked Crane to eco- environment in northern Tibeten and on behavioral difference of monogamous birds,diurnal activity of incubating Black- necked Crane was observed in northern Tibetern from May to June 2006 with focal animal sampling. The result showed that breeding behavior of female was more than that of male,but the other four types of behavior were less,especially vigilance. There was a conspicuous variation on the diurnal activity of Black- necked Crane,and foraging behavior,breeding behavior presented asynchronism and synchronization between the males and the females at different time. The result suggested that the female beared breeding task and the male protected resource,although responsibility for the breeding task was undertaken by the both. The behavior- activity pattern of incubating Black- necked Cranes reaches an evolutionarily stable strategy with the environment.更多还原