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Temporal fluctuation of gorilla social behavior de grauer: Gorilla beringei graueri (primate, hominidae) at national park of Kahuzi-Biega, democratic republic of Congo

The objective of this study was to assess the temporal and seasonal fluctuation of the daily activities of the Chimanuka family gorillas at high altitude in the Tshivanga station in the Kahuzi-Biega National Park and their implications for the success of tourist visits. We used the methods of reconnaissance walks, direct observation, scanning and focal animal. The activities studied are: feeding on the ground, feeding at height, moving for food research, changing habitats, family rest and agonistic interactions resulting in fights between two dominant males from different families. These appear in both seasons. Comparing the two seasons (rainy and dry), ground feeding is more frequent in the rainy season than in the dry season. Feeding at height is observed especially in the dry season. Travel for food research is more noticeable in the dry season and family rest is observed more in the rainy season. Habitat change and agonistic interactions are more frequent in the dry season. Consideration of temporal and seasonal fluctuations in gorilla social behavior is recommended to guide visitors through the park with the seasons in mind.