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標題: | 食物多樣性與偏好食物比例對圈養雄黑猩猩反吐/再進食行為的影響 Effect of Food Variety and Proportion of Favored Food on Regurgitation and Reingestion Behavior in Zoo-housed Male Chimpanzees (Pan troglodytes) |
作者: | Ying-Ying Wang 王盈穎 |
指導教授: | 李玲玲(Ling-Ling Lee) |
關鍵字: | 黑猩猩(Pan troglodytes),攝食行為,偏好食物,反吐/再進食行為,食物多樣性, chimpanzee,Pan troglodytes,eating behavior,favored food,food variety,regurgitation and reingestion, |
出版年 : | 2020 |
學位: | 碩士 |
摘要: | 圈養環境中的類人猿進食時會被觀察到有反吐/再進食(Regurgitation and reingestion, RR)的異常行為,簡稱為RR行為。許多相關研究因此探討生理因子如消化不良等對動物攝食行為與RR行為表現的影響,然而心理因子如攝食的滿足感亦可能影響RR行為的表現,但此類研究則相對少見。其中,偏好食物的多寡被視為會影響動物攝食的滿足感,進而影響攝食行為與RR行為的表現,因為移除偏好的食物後,某些動物如紅毛猩猩的RR行為有減少的趨勢。此外,食物多樣性也被認為會影響動物攝食的滿足感,然而針對食物多樣性對RR行為之影響的研究極少。因此本研究的目的是檢驗食物多樣性和偏好食物比例對圈養黑猩猩(Pan troglodytes) RR行為的影響。本研究採用二乘二複因子設計,結合了低與高食物多樣性和偏好食物的比例進行實驗。透過相機記錄台北動物園5隻雄性黑猩猩每一餐中的RR行為,以連續焦點採樣計算4種處理下RR出現的次數,並用負二項式模型進行分析。分析結果顯示,當將黑猩猩以行為分組及單獨個體分析時,食物多樣性對RR行為有顯著的影響 (Pr(>|z|) 分別為 0.011 和 0.027) 。 Regurgitation and reingestion (RR) behavior is an abnormal behavior common in captive great apes. Although past research examined physiological factors of eating behavior affecting RR, psychological factors were less thoroughly studied. One proposed psychological factor was the enjoyment of eating favored food, which emerged when removing favored food from meals in orangutans decreased RR. Food variety is also suggested to affect the enjoyment of eating food in human studies by increasing food intake within a meal. However, the effect of food variety on RR is less understood. Therefore, the aim of this study is to examine the effect of food variety and proportion of favored food on RR behavior. A two by two factorial design with a combination of low and high food variety and proportion of favored food was used to observe the changes in RR behavior of 5 male chimpanzees at the Taipei Zoo. Continuous focal sampling of RR is collected and analyzed with generalized linear model. The results showed the effect of food variety is significant on the bouts of RR behavior in one of the behavioral groups, including chimpanzee A and B (Pr(>|z|) = 0.011) as well as for the individual chimpanzee A (Pr(>|z|) =0.027). |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/60049 |
DOI: | 10.6342/NTU202003258 |
全文授權: | 有償授權 |
顯示於系所單位: | 生態學與演化生物學研究所 |
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