Dietary composition of birds in isolated ecosystems:a case study of Black Wood Pigeon in Republic of Korea

作     者：Soon Kyoo Choi Yung Chul Park Sung Wan Park Jae Woong Kim Woo Yuel Kim 

作者机构：Division of Forest ScienceKangwon National UniversityChuncheonRepublic of Korea Department of BiologyKyungpook National UniversityDaeguRepublic of Korea Earth Ecological Environment Research InstituteDaejeonRepublic of Korea Division of National Ecosystem Survey ResearchNIESeocheonRepublic of Korea 

出 版 物：《Ecosystem Health and Sustainability》 (生态系统健康与可持续性（英文）)

年 卷 期：2020年第6卷第1期

页      面：117-126,116页

核心收录：

学科分类：0905[农学-畜牧学] 09[农学] 

基　　金：This study was included by part of the 5th National Ecosystem Research Project of National Institute of Ecology(NIE-A-2020-01) 

主　　题：Dietary composition feeding preference field observations fruit phenology seasonal variation 

摘      要：We studied the feeding ecology of the Black Wood Pigeon(Columba janthina),a species endemic to the East Asian Pacific Islands,and determined the species’dietary composition and food preferences on Ulleung Island,South Korea,through field *** March 2016 to February 2018,the diversity of food items consumed was low,with the 10 most common plant species(from a total of 33)accounting for over 80%.Food availability varied depending on plant abundance,but this influence was minimized because of factors such as delayed fruit *** were the most favored food items(60-68%)but were replaced by nuts and weed seeds during the spring and winter *** composition and food preferences were related to the abundance of food items based on their phenology,but a steady,high preference for Aphananthe aspera was observed throughout the study *** abundance of Prunus takesimensis in June was correlated with changes in the Black Wood Pigeon *** study is the first to assess the feeding ecology of Black Wood Pigeons using field observations and suggests that the availability of different food items affects population changes on the East Asian Pacific islands.