SPEI winter flock size and location 1995 to 2020
收藏DataCite Commons2022-01-20 更新2024-07-13 收录
下载链接：
https://ecos.fws.gov/ServCat/Reference/Profile/135632
下载链接
链接失效反馈官方服务：
资源简介：
This data set contains flock IDs and flock size (number of individual birds) and flock locations of spectacled eider flocks encountered during the late winter aerial surveys from 1995 to 2020. Flock size is based on either counts from digital photos, or visual estimates made by observers for flocks that were not photographed.
本数据集涵盖1995年至2020年晚冬航空调查中观测到的眼镜绒鸭（Spectacled Eider）鸟群的鸟群标识、鸟群规模（即个体鸟类数量）以及鸟群空间位置。鸟群规模的统计依据分为两类：一是数码照片的个体计数结果，二是未拍摄照片的鸟群由观测人员作出的目视估算值。
提供机构：
U.S. Fish and Wildlife Service
创建时间：
2022-01-20
