Data file for resource selection analyses corresponding to Fig. 4 and Table S2 and S3

This file contains data for the resource selection analyses. Each row represents a used or available residence patch. The different columns are: tagID (the bird's tag number), gizzard_mass (the measured gizzard mass in g), X (X-coordinate of residence patch in m), Y (Y-coordinate of residence patch in m), RT (duration of residence patch in h), present (1 indicates a used residence patch, and 0 indicates an available residence patch), density (cockle density at these coordinates in numbers per square meter), AFDMflesh (relative AFDMflesh at these coordinates), IR (predicted intake rate at these coordinates in mg AFDMflesh per second), IR_avg_gizzard (predicted intake rate at these coordinates with an average gizzard mass in mg AFDMflesh per second), IR_ind_gizzard (standardised predicted intake rates at these coordinates given an individual's measured gizzard mass), and weights (statistical weight in resource selection model).

本文件包含用于资源选择分析（resource selection analyses）的数据。每一行代表一个已利用或可用的栖息斑块（residence patch）。各列含义如下：
tagID：鸟类的标记编号；
gizzard_mass：实测砂囊（gizzard）质量，单位为克（g）；
X：栖息斑块的X坐标，单位为米（m）；
Y：栖息斑块的Y坐标，单位为米（m）；
RT：栖息斑块停留时长，单位为小时（h）；
present：标记字段，取值为1时代表已利用栖息斑块，取值为0时代表可用栖息斑块；
density：对应坐标处的鸟蛤密度，单位为每平方米个体数；
AFDMflesh：对应坐标处的软组织去灰分干重相对值；
IR：对应坐标处的预测摄入率，单位为毫克AFDMflesh每秒；
IR_avg_gizzard：基于平均砂囊质量的对应坐标处预测摄入率，单位为毫克AFDMflesh每秒；
IR_ind_gizzard：基于个体实测砂囊质量的对应坐标处标准化预测摄入率，单位为毫克AFDMflesh每秒；
weights：资源选择模型中的统计权重。