The Influence of Seasonal Frugivory on Nutrient and Energy Intake in Wild Western Gorillas

摘要: The daily energy requirements of animals are determined by a combination physical and physiological factors, but food availability may challenge the capacity to meet nutritional needs. Western gorillas (Gorilla gorilla) an interesting model for investigating this topic because they folivore-frugivores that adjust their diet activities seasonal variation in fruit availability. Observations one habituated group western Bai-Hokou, Central African Republic (December 2004-December 2005) were used examine quality intake. We tested if during high season consumed was higher (higher energy, sugar, fat lower fibre antifeedants) than low season. Food digestible not any other macronutrients. Second, we investigated whether increased intake carbohydrates, metabolizable (KCal/g OM), or nutrients Intake dry matter, fibers, fat, protein majority minerals phenols decreased with frugivory there some indication tannins, protein/fiber ratio, iron. non-structural carbohydrates sugars influenced Gorillas probably able extract large quantities via fermentation since rely on proteinaceous leaves Macronutrients micronutrients, be limited them times hind-gut fermenters. discuss advantages frugivores having dietary breath flexibility, significant characteristics consider conservation strategies endangered species.