大丰麋鹿群对光周期适应的研究*

１９８７－１９９２年研究表明，江苏大丰麋鹿保护区半野生放养的麋鹿，产仔季节比在英国伦敦时提前２５ｄ，雄鹿落角季节比引进初期提前２２ｄ，发情期亦有相应变化。其节律的季节分布情况与１９世纪９０年代生活在伦敦乌帮夺的情况有着惊人的一致，表明鹿群已重新适应了大丰的光周期，它的生命季节性节律已调整在位；逐年产仔期变动显示了调整的具体过程。

Study on the Adaptation of Milu Herd to the Photoperiod at Dafeng Reserve

In 1986, milu (Elaphurus davidianus) herd was taken from five zoos in London, back to Dafeng Reserve within its historical distribution area for semi-free range. Data up to 1992 indicate the giving birth season and the moulting antler season for the herd take place 25 days and 22 days respectively prior to that in London. The seasonal distribution of milu biological rhythm at Dafeng Reserve is surprisingly identical to that at Woburn Abby in London when milu left their native habitat in the 90s of 19th century. This suggests that the milu herd has again adapted to the pho-toperiod of Dafeng Reserve and its biology-seasonal rhythm has been completely adjusted. The change of the giving birth season in the successive yearso-reveals the concrete process of adjustment. This artical compares the meteorological data of Woburn Abby, Nanhaizi Park & Dafeng Reserve, and discusses the adaptation of the species to climate.