The assessment that an introduced species coming up out of the non-marine mollusks influence islands ecosystem by gene pollution

非海洋软体动物引进物种通过基因污染影响岛屿生态系统的评估

基本信息

批准号：
16510025
负责人：
TOMIYAMA Kiyonori
金额：
$ 2.56万
依托单位：
Kagoshima University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2004
资助国家：
日本
起止时间：
2004 至 2005
项目状态：
已结题

项目摘要

In the Ryukyu chain of islands northern part of Kagoshima (Osumi-shoto Islands, Tokara islands, Amami-shoto Islands) and the Kagoshima mainland, I studied introduced and endemic species of non-marine mollusks.(1)I investigated the distribution situation of a peculiar land snail of an island and the habitation present situation. In particular it was investigated the influence situation of an introduced species. In this study, a land snail of Subclass Prosobranchia, flesh water snail, brakishwataer snail, Bradibaenidae of Pulmonata, an endemic species of Bivalvia of a fresh water product were selected. Habitation present situation investigation of an endemic species and the influence situation of an introduced species were studied.(2)The influence that land snail of some introduced species gave endemic species was elucidated, and it was evaluated the influences of ecosystem. In north Ryukyu islands, a thing with many introduced specieses introduced from the country was elucidated than an introduced species introduced from a foreign territory.(3)Four kinds of endemic specieses, DNA of one kind of introduced species were analyzed by RAPD method. One part of result did patent application. The patent name is "a nucleic acid and a resolution method of a live germ cell to use bodily fluids / viscous liquid extraction thing of a mollusk".(4)In some endemic species, the life cycle in the country of the kind that became an introduced species in a foreign territory was elucidated. In a Japanese endemic species, several kinds brakishuwater snail threatens an introduced species or local peculiar ecosystem in a foreign territory. On this account, in a habitat of the Japanese place of origin, the basics habits of these snail species were elucidated.

在鹿儿岛北部的琉球群岛（大隅诸岛、吐噶喇诸岛、奄美诸岛）和鹿儿岛本岛，研究了引进的和特有的非海生软体动物。（1）调查了岛屿特有的陆地蜗牛及其栖息现状。特别是调查了引进物种的影响情况。本研究选择了原鳃亚纲陆生蜗牛、肉水蜗牛、brakishwataer 蜗牛、淡水产品双壳纲特有种 Pulmonata 的 Bradibaenidae。对特有物种的栖息地现状调查和外来物种的影响情况进行了研究。(2)阐明了部分引进物种蜗牛对特有物种的影响，并对生态系统的影响进行了评价。在北琉球群岛，从国内引进的物种比从国外引进的物种多。(3)采用RAPD方法对4种特有物种、1种引进物种的DNA进行了分析。其中一部分成果进行了专利申请。专利名称为“使用软体动物体液/粘性液体提取物的活生殖细胞的核酸和解析方法”。(4)在某些特有物种中，该物种在该国的生命周期已成为阐明了外国领土上的引进物种。在日本特有物种中，有几种brakishuwater 蜗牛威胁着外国领土上的引进物种或当地特有的生态系统。因此，在日本原产地的栖息地中，阐明了这些蜗牛物种的基本习性。