Study on the maintenance system and conservation of the island ecosystem of Iriomote National park

西表国立公园岛屿生态系统维护体系及保护研究

基本信息

批准号：
11480152
负责人：
IZAWA Masako
金额：
$ 3.97万
依托单位：
University of the Ryukyus
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
1999
资助国家：
日本
起止时间：
1999 至 2001
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-11480152/
关键词：
Iriomote cat Iriomote National Park Habitat use Veterinary study Conservation of ecosystem Reptiles Invasive species 島嶼生態系保全希少動物 GIS 齢査定繁殖特性動物相伝染性ウィルスキシノウエトカゲ

项目摘要

This project aims to conduct the inclusive surveys and discuss the management procedure of island ecosystem of the Iriomote, in Ryukyu archipelago, Japan. The study focused first on the Iriomote cat as the top of food chain of this island, secondly on the fauna of this island, and thirdly on the assessment of habitat condition including the effect of human activity.1. We obtained an annual life cycle of the Iriomote cat, which is one of the most important points to consider both of its ecology and conservation. Furthermore, continuous surveys clarified that the density and spacing pattern of this species varied between habitats in the island and that some males largely moved area to area. Habitat analysis using the radio-tracking data and GIS data has started.2. Clinical pathological examinations on rescued and dead Iriomote cats.3. Ecological, taxonomical, biogeographical surveys were conducted on fauna of Iriomote Island. Especially detailed analysis was done on reptiles together with South-eastern Asia samples. And ecological data were collected on the crested serpent eagle as well.4. Distribution and some ecological data on two invasive species, feral cats and soft-shelled turtles, were collected. Concerning to feral cats, possibilities of competition with Iriomote cats and infection of disease were suggested and pattern of dispersion of soft-shelled turtles was analyzed using allozyme electrophoresis.Based these results, conservational problems of the Iriomote cat and other endangered species of Iriomote Island were suggested. Important data on the Iriomote cat, fauna in Iriomote Island and interrelationship between them were obtained in this project. To the inclusive understanding of Iriomote ecosystem, we need the detailed ecology of each animals, comprehensive survey on whole island community, survey on flora and forest and human activity.

该项目旨在进行包容性调查，并讨论日本Ryukyu群岛Iriomote岛生态系统的管理程序。该研究首先以伊洛莫特猫作为该岛的食物链的顶端，其次是该岛的动物区系，第三，评估栖息地状况，包括人类活动的影响。1。我们获得了Iriomote Cat的年生命周期，这是考虑其生态学和保护的最重要点之一。此外，连续调查澄清说，该物种的密度和间距模式在岛上的栖息地之间有所不同，有些男性在很大程度上将其转移到了地区。使用无线电跟踪数据和GIS数据的栖息地分析已开始。2。关于救出和死亡的iriomote cat的临床病理检查3。生态，分类学，生物地理调查是在Iriomote Island的动物区系进行的。特别详细的分析是对爬行动物以及东南亚洲样本进行的。也收集了在冠状蛇鹰上的生态数据4。收集了两种入侵物种，野猫和软壳海龟的分布和一些生态数据。关于野猫，提出了与伊洛莫特猫的竞争和疾病感染的可能性，并使用同酶电泳分析了软壳海龟的分散模式。基于这些结果，建议了iRiomote猫的保护问题和其他濒临灭绝的iriomote Island物种。在该项目中获得了有关Iriomote Cat，Iriomote Island的动物群及其之间的相互关系的重要数据。为了了解伊洛莫特生态系统的包容性，我们需要每只动物的详细生态，有关全岛社区的全面调查，关于植物和森林和人类活动的调查。