Causes for spatiotemporal variation in reproductive performance of Eurasian oystercatchers in a human-dominated landscape

These data comprise the data of four chapters from the PhD thesis from Frauendorf (2022) entitled 'Causes for spatiotemporal variation in reproductive performance of Eurasian oystercatchers in a human-dominated landscape’. The thesis focusses on quantifying the anthropogenic impacts on the reproductive performance of oystercatchers across the Netherlands. The dataset contains data from chapter 3, 5 and 6, which were used in the thesis but are not published open access yet. For chapter 3 oystercatchers were caught during winter across the wintering ground of oystercatchers (Wadden sea and Delta estuary) and their condition was measured (physiological measurements through blood and biometric measurements). The data also include resighting data from ringed individuals that were used for mark-recapture survival analysis (state and age matrices). In addition, environmental variables were collected from open source data. Next, the birds were followed from their wintering ground to the breeding ground where we measured their reproductive success. Chapter 5 includes data about the reproductive performance of oystercatchers (available from several different data sources across the Netherlands). Next, we collected data on the environment from different (open access) data sources about for instance habitat type, land use intensity, predation and food availability. In chapter 6, we used data on bill shape as a proxy for feeding specialization based on data from winter catches (chapter 3 in PhD thesis) to illustrate the proportion of birds with different feeding specialization in the studied population.本数据集涵盖Frauendorf（2022）博士论文的四个章节数据，该论文题为《人类主导景观中欧亚蛎鹬（Eurasian oystercatchers）繁殖性能的时空变化成因》。该论文核心聚焦于量化人为活动对荷兰境内蛎鹬繁殖性能的影响。本数据集包含论文中使用但尚未以开放获取形式发表的第3、5、6章相关数据。第3章相关数据采集自冬季在蛎鹬越冬地（瓦登海与三角洲河口）开展的捕获工作，研究人员测量了捕获个体的生理指标（血液检测）与生物特征参数；数据集同时包含环志个体的重见数据，用于标记重捕（mark-recapture）生存分析（含状态与年龄矩阵）；此外，研究团队从开源数据源获取了环境变量数据，并追踪了这些个体从越冬地到繁殖地的活动，测定了其繁殖成功率。第5章包含荷兰境内多来源渠道的蛎鹬繁殖性能数据，同时研究团队从各类（开放获取）数据源收集了生境类型、土地利用强度、捕食压力与食物可获得性等环境相关信息。第6章则基于冬季捕获的个体数据（即本论文第3章内容），以喙形作为取食特化的替代指标，分析研究种群中不同取食特化类型个体的占比。