Besides gathering long-term data and calculating the number of acorns in each year, they also collect three other sets of info: statistics on bear hairs, feces, and claw marks in the oak trees.
黃美秀說，除了長期收集、統計各年度青剛櫟結果的數量，他們還同時收取 3 種資料：黑熊毛髮、糞便，及青剛櫟樹上的爪痕數量。