Quantification of missing values for nutritional analysis, intake rate and food biomass.

Important foods (defined as foods consumed for more than 1% of the total feeding) accounted for 98% of the total feeding scans from focal sampling. The table indicates also the percentages of missing values excluding leaves (mature and young leaves) since leaves vary less in shapes and size, thus in the rate of ingestion by gorillas. Quantification of missing values for nutritional analysis, intake rate and food biomass.