動物園飼育下のニシローランドゴリラの放飼場利用について(第7回日本生命倫理学会年次大会ワークショップ「動物への配慮と環境問題」発表原著)

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Recently ecological ethics has become popular. Do human beings have enough knowledge about animals and their complex environment for meaningful discussion? The purpose of this study was to show the importance of trying to understand animals objectively discussing them from observations, in our case, of Gorillas. An analysis of how captive Western Lowland Gorillas (Gorilla gorilla gorilla) used their new openair-enclosure was attempted. The observed subjects were six adult Western Lowland Gorillas (two males and four females) that have lived in a new open-air-enclosure which was used from June 1994 in Tokyo Ueno Zoological Garden. They were gathered from several zoos in Japan to breed. This is the first attempt to form a Gorilla group in Japan. The observation was done from May to December in 1994 with a time-lapse VTR system. The results showed Gorillas never used their place as we had anticipated before. For example, some of them liked to climb artificial trees which were made because wild Lowland Gorillas were observed to spend long periods of their time on trees while others did not. Some of them liked to stay on the concrete space though people had thought the concrete space to be less comfortable than the ground or grass. There were individual differences and the relationships between individuals seemed to affect usage. More data will be needed to understand them better. Such attempts will be useful to improve their well-being in the Zoo. It is not so easy for us to understand even apes, the nearest species to humans. When discussing the relationships between humans, animals, and environments, it should be done based, not on our'image', but on facts derived from scientific studies.
日本生命倫理学会の論文
1996-06-30

著者

吉田浩子
上智大学生命科学研究所

動物園飼育下のニシローランドゴリラの放飼場利用について(第7回日本生命倫理学会年次大会ワークショップ「動物への配慮と環境問題」発表原著)

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