Distribution and abundance of the Amami rabbit Pentalagus furnessi in the Amami and Tokuno Islands, Japan
Distribution and abundance of the Amami rabbit Pentalagus furnessi in the Amami and Tokuno Islands, Japan
复制标题
日本奄美群岛和德野群岛的奄美兔 Pentalagus Furnessi 的分布和丰度
DOI：
10.1046/j.1365-3008.2000.00119.x
复制
发表时间：
2000
期刊：
影响因子：
2.7
通讯作者：
Yukari Handa
中科院分区：
文献类型：
--
作者：
K. Sugimura;Shigeho Sato;F. Yamada;S. Abe;H. Hirakawa;Yukari Handa
摘要 奄美兔 Pentalagus Furnessi 是日本奄美群岛和德野群岛特有的一种稀有森林兔。为了估计奄美兔的分布和丰度，我们在 1993 年 1 月至 1995 年 3 月期间对沿森林道路和溪流以及奄美和德野群岛森林内的粪便颗粒进行了计数。沿溪流每公里的颗粒数量为测量相对丰度提供了实用的指数。据估计，这只兔子分布在奄美岛约370平方公里和德野岛约33平方公里。不同调查路线之间的粪便丰度存在很大差异。有些种群完全与世隔绝，被认为非常小。当地人口的规模与邻近人口的规模以及相对于其他塞莱阶段的成熟森林的数量呈正相关。我们将本次调查的结果与之前的调查结果进行比较，发现该物种的总数量似乎正在下降。针对森林栖息地管理提出了一些保护措施，旨在避免奄美兔的衰退并确保其保存。
Abstract The Amami rabbit Pentalagus furnessi is a rare forest-dwelling form endemic to the Amami and Tokuno Islands in Japan. In order to estimate the distribution and abundance of the Amami rabbit we counted their faecal pellets along forest roads and streams as well as within the forests on Amami and Tokuno Islands during January 1993–March 1995. The number of pellets/ km along a stream gave a practical index for measuring relative abundance. The rabbit was estimated to be distributed over about 370 sq km on Amami Island and 33 sq km on Tokuno Island. There was a large variance in faecal abundance among the survey routes. Some populations were completely isolated and thought to be very small. The size of a local population was positively correlated with those of neighbouring populations and the amount of mature forest relative to other serai stages. We compared the results of this survey with those of previous surveys to find that the total population of this species appears to be declining. Some conservation measures are proposed for forest habitat management, designed to avert the decline of the Amami rabbit and to ensure its preservation.