Data for: Vertical and Horizontal Vegetation Cover Synergistically Shape Prey Behaviour
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Data used for analysis of fox squirrel (Sciurus niger) antipredator behavior at the Joseph W. Jones Center in Newton, GA. Site: Code for paired exclosure/control Treatment: X = Exclosure, C = Control Transect: Set of 3 GUD trays extending away from a tree TranBlock: Grouping variable for all transects within a 100m radius Tray_Code: Tray identifier within transect GUD: Giving up density (g) of pecans (5.0 = no foraging) Dist: Distance from nearest tree Robel_Mean_5m: Mean Robel Pole height recorded at a distance of 5m at 1m eye height Pct_Can: Mean percent canopy closure measured using a spherical densiometer
本数据集用于分析位于佐治亚州牛顿市约瑟夫·W·琼斯中心(Joseph W. Jones Center)的狐松鼠(Sciurus niger)的反捕食行为。各变量说明如下: - 样地(Site):围栏/对照配对样地代码 - 处理方式(Treatment):X代表围栏排除样地(Exclosure),C代表对照样地(Control) - 样带(Transect):由3个GUD(觅食放弃密度,Giving Up Density)托盘组成、从单棵树木向外延伸的采样组 - 样带块(TranBlock):100米半径范围内所有样带的分组变量 - 托盘编码(Tray_Code):单一样带内的托盘标识符 - 觅食放弃密度(GUD):山核桃的觅食放弃密度(单位:g),取值5.0代表未发生觅食行为 - 距离(Dist):至最近树木的距离 - 5米处罗伯尔杆平均高度(Robel_Mean_5m):在距离采样点5米处、以1米眼高测得的罗伯尔杆(Robel Pole)平均高度 - 平均冠层郁闭度(Pct_Can):使用球形测树仪(spherical densiometer)测得的平均冠层郁闭百分比




