里山の指標となるギフチョウの保護

概要

論文の詳細を見る
As a part of the process of conserving the Satoyama ecosystem (mountain village ecosystem), the population of Luehdorfia japonica (Leech) inhabiting Kaisho-no-Mori Forest and Aichi Youth Park has been monitored from 2001 to 2005. Kaisho-no-Mori Forest is located near the site of the 2005 World Exposition, Aichi, Japan (EXPO2005) and Aichi Youth Park was used as a part for the site for EXPO2005. Monitoring consisted of investigation of the numbers of eggs, larvae and adults. Eggs and larvae on the host plant, Asarum kooyanum Makino var. bachypodion (F. Maek.) Kitam., were directly counted, and the number of adults was estimated both by observation and the mark-release-recapture method (MRR method). The monitoring results from 2001 to 2004 made by the Japan Association for the 2005 World Exposition (JAEXPO2005) were compared with our results. According to the latter report, the number of Luehdorfia japonica decreased in year only, 2000, and gradually increased towards 2004 in Kaisho-no-Mori Forest. The monitoring result presented by JAEXPO2005 also showed the gradual increase of this butterfly in Aichi Youth Park.
日本鱗翅学会の論文
2007-03-30