札幌市円山動物園におけるチンパンジーのタワーへの昇降行動の変化

摘要

動物園は博物館法において水族館と並び博物館相当施設に分類される。近年地球温暖化等の急速な気候変動に伴い野生動物の生息域が縮小し、動物園の役割として、動物を見せるという展示機能、自然と環境への理解の入口となる教育·研究の機能に加え、希少動物の繁殖による生物多様性の保全への貢献が期待されている注リ。%We measured the changes in the behavior of the chimpanzees going up and down the tower caused by the addition of the elements around the tower that was introduced for environmental enrichment at Sapporo Maruyama Zoo. The following four spatial elements around the base of the tower were found to be effective in guiding the animals up the tower: 1. Placing a solid footing by the base of the tower. 2. Install a slip-resistant, diagonal member with handholds, such as logs. 3. Place ropes arranged so that they intersect with each other. 4. Install an aerial path to the tower.