Data presented in the paper "Colony-breeding Eurasian spoonbills in the Netherlands: local limits to population growth with expansion into new areas"

The dataset contains three files, all relating to spoonbill breeding colonies in the Netherlands. We used this dataset to assess population growth of Spoonbills in the Netherlands, and especially in the Wadden Sea. The first file contains yearly breeding colony sizes, which were obtained by counting in each of the colonies in each year the number of breeding pairs. This was done mostly by local nature management teams. The second file contains for several colonies in the Wadden Sea area the average yearly breeding success. This number was obntained by counting the number of fledglings in the ebnd of the breeding season. This was also done mainly by local nature management teams. The last file contains data on the condition of individual chicks in several colonies. These were obtained by researchers from the University of Groningen and NIOZ, and by several Staatsbosbeheer officers.

本数据集包含三份文件，所有数据均与荷兰境内的琵鹭（Spoonbill）繁殖群落相关。本研究利用该数据集评估荷兰境内尤其是瓦登海（Wadden Sea）区域的琵鹭种群增长情况。第一份文件收录年度繁殖群落规模数据，其通过逐年统计各繁殖群落内的繁殖配对数量获取，该项统计工作主要由当地自然管理团队完成。第二份文件涵盖瓦登海区域内多个繁殖群落的年度平均繁殖成功率，该指标通过统计繁殖季末期的离巢幼鸟数量计算得出，同样主要由当地自然管理团队完成。第三份文件包含多个繁殖群落内个体雏鸟的身体状况数据，该部分数据由格罗宁根大学（University of Groningen）、荷兰皇家海洋研究所（NIOZ）的研究人员，以及多名荷兰国家森林管理局（Staatsbosbeheer）工作人员共同采集获取。