Seasonal migration of sika deer in the Oku-Chichibu Mountains, central Japan
Seasonal migration of sika deer in the Oku-Chichibu Mountains, central Japan
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DOI：
10.3106/041.037.0203
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发表时间：
2012-06-01
期刊：
影响因子：
1
通讯作者：
Sato, Shigeru
中科院分区：
文献类型：
--
作者：
Takii, Akiko;Izumiyama, Shigeyuki;Sato, Shigeru
2009年4月至2010年3月，在本州中部的Oku-Chichibu山调查了6只GPS项圈梅花鹿的活动和季节活动范围。所有的鹿都在离散的夏季和冬季栖息地之间迁徙。线性迁移距离为2.5 ~ 31.9 km。夏季平均海拔980 ~ 1782 m，冬季平均海拔1204 ~ 1723 m。2只鹿向上迁移，4只鹿向下迁移。考虑到夏季家园范围内积雪量相对较小，秋季迁徙躲避深雪的可能性较低。冬季家区陡坡比例高于夏季家区。竹草在夏栖地未发现，而在冬栖地占优势。与夏季相比，冬季住宅范围的道路密度有所下降。在冬季，6只鹿中只有2只主要停留在野生动物保护区。结果表明，鹿群的秋季迁徙受到冬季牧草和人为干扰的影响，从而保证了鹿群在冬季的生存。
Movements and seasonal home ranges of 6 GPS collared sika deer were investigated at the Oku-Chichibu Mountains, central Honshu, from April 2009 to March 2010. All deer migrated between discrete summer and winter home ranges. The linear migration distance ranged from 2.5 to 31.9 km. Mean elevation during the summer and the winter ranged from 980 to 1,782 m, and from 1,204 to 1,723 m, respectively. Two deer were upward migrants and 4 deer were downward migrants. Taking into consideration of the relatively small snow accumulation in the summer home range, the possibility of autumn migration to avoid deep snow is low. The percentage of steep slope in the winter home range was higher than that in the summer. Bamboo grass was not found in the summer home range, but was predominant in the winter home range. Road density decreased in the winter home range compared to the summer. Only 2 out of 6 deer stayed mainly in the wildlife protection area during the winter. Our results indicate that the autumn migration was affected by winter forage and human disturbance, thereby assured the survival of the deer during winter.