Feather microstructure measurements for Dark-eyed junco in the Selkirk Mountains

A combination of body condition data and feather microstructure variables. Originally, all microstructure variables were measured twice on two separate feathers. After finding there was no difference between variables measured on separate feathers (P>0.33), we pooled the variables within individual and the averaged values are depicted in this data set (i.e., one row per individual). Column heading abbreviations: penn.length & plum.length are the linear measurements of the pennaceous and plumulaceous feather regions respectively; penn.barb is the number of pennacous barbs counted to measure density; penn.density.length is the length over which the barbs were counted; penn.density is penn.barb/penn.density.length; penn.barbules: this series is the same as the penn.barb columns but for barbule densities measured twice (on two separate barbs); barbule.length: measurements of individual barbule length from 5 randomly selected barbules on the section of the barb that barbule density was measured.本数据集由身体状况数据与羽毛微观结构变量共同组成。最初，所有微观结构变量均通过两根独立的羽毛分别完成两次测量。经检验发现，取自不同羽毛的测量变量无统计学差异（P>0.33），因此我们将同一受试个体的相关变量合并，并以平均值作为本数据集的展示数据（即每个个体对应一行记录）。列标题缩写说明如下：penn.length与plum.length分别为正羽片区域（pennaceous）和绒羽区域（plumulaceous）的线性测量值；penn.barb为用于计算羽片密度的羽枝计数总量；penn.density.length为羽枝计数所在的长度区间；penn.density为penn.barb与penn.density.length的比值；penn.barbules：该系列列与penn.barb列的逻辑一致，对应两次测量的羽小枝密度（测量样本为两根独立羽枝）；barbule.length：从羽小枝密度测量区域的羽枝上随机选取5根羽小枝，测得的单根羽小枝长度。