Data on the taxon and morpho-specific year-round diet and endozoochorous seed dispersal of the world's largest grouse, the Capercaillie Tetrao urogallus

Here we present the quantitative data from our original high-resolution taxon- and morpho-specific dietary study based on cuticle microhistological analyses of food remains from the feces of Western Capercaillies Tetrao urogallus. By providing integrative quantitative dietary data based on the functional classification of different plant parts representing 49 kinds of plant food items from four major food categories (leaves, buds, inflorescences, and fruits), and intact seeds, arthropods, and mineral particles (grit), our dataset has potential applications in dietary studies, dispersal capabilities, and the reintroduction biology of gallinaceous birds.本研究呈现了基于西方松鸡（Western Capercaillie，*Tetrao urogallus*）粪便食物残余的角质层显微组织分析（cuticle microhistological analyses）所得的原创高分辨率类群与形态特异性饮食研究的定量数据。本数据集基于不同植物部位的功能分类，整合了涵盖49种植物性食物的定量饮食数据，这些植物性食物划分为四大类别：叶片、芽、花序与果实；同时还包含完整种子、节肢动物以及矿物颗粒（砂砾 grit）。本数据集在鸡形目鸟类的饮食研究、传播能力研究以及再引入生物学研究领域具有潜在应用价值。