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THE DISTRIBUTION OF THE CHINESE WATER DEER ( HYDROPOTES INERMIS) IN ZHOUSHAN ARCHIPELAGO,ZHEJIANG PROVINCE, CHINA

GUO Guangpu ZHANG Endi   

  • Online:2005-06-22 Published:2008-07-07

舟山群岛獐的分布

郭光普 张恩迪   

  1. 华东师范大学生命科学学院, 上海, 200062

Abstract: A survey was conducted on the distribution of the Chinese water deer ( Hydropotes inermis) on 25 islands of Zhoushan Archipelago from July 1999 to June 20001Results showed that the Chinese water deer distributes between 121°50′- 122°24′E and 29°40′- 30°26′N in Zhoushan1They are mainly located in the southwest of the area.Large islands have a higher percentage of distribution , e.g., islands larger than 10 km2 than those small ones. So do those smaller islets around larger islands , i.e., in the 5 islets surveyed that are within 3 km from Zhoushan main island are all have water deer1The number of islands that the deer distributed declines with increase of the distance from the mainland and main island. The deer usually dwell on hills but come to the hill foot and plain to feed at night; There are 21.43 % of the islands that human resides have the deer. The major factors that affect the distribution of the deer are the distances from the mainland and the main island , the size of islands , and human activities especially poaching. Our results showed that the shape of the island is not related with deer's distribution in Zhoushan area. The deer could move or migrate between islets thus affect the distribution locally , and the distribution was also affected by geological movements and other environmental factors.

Key words: Chinese water deer ( Hydropotes inermis), Distribution, Zhoushan Archipelago

摘要: 1999 年7 月至2000 年6 月采用访问和样线法对浙江舟山群岛25 个岛上的獐的分布进行调查。结果显示獐在该地区主要分布在北纬30°26′以南, 东经122°24′以西, 且集中在西南诸岛上。较大岛屿獐的分布比例较高, 10 km2以上的岛屿81.25 %有獐分布。并且其周围小岛獐的分布比例也较高。所调查的5 个距离舟山本岛3 km范围内的小岛均有獐分布。獐所分布的岛屿随着离大陆和本岛距离的增加而减少。獐主要栖息在山丘上, 但夜里常到农田觅食。21.47 %有人居住岛上有獐分布。对獐分布影响较大的因素是离本岛和大陆的距离及岛屿面积; 其次是人类活动, 主要是偷猎; 淡水水源影响不大; 分布与岛屿形状无关。獐可以在岛屿之间迁游, 从而影响分布。獐在舟山地区可能是原有分布的, 几次地质变化可能对其产生一定影响。

关键词: 獐, 分布, 舟山群岛