Behaviors1 (mean %) affected by barrier treatment.

1Values are LSM ± SEM. “Foraging” (F2,26 = 0.38), “sitting” (F2,27 = 0.46), “walking” (F2,27 = 1.68), and “preening” (F2,27 = 2.54) were not affected by barrier treatment. “Perching” (F1,18 = 0.41) was not affected by barrier type. “Disturbance” was affected by barrier×density (Fig. 3).2Mixed model repeated measures ANOVA, df = 2,27, with the exception of running with df = 2,26 as running means were pooled across weeks.aMeans within a row with different superscripts are significantly different (P1. 所有数值以最小二乘均值（Least Squares Means，LSM）±标准误（Standard Error of the Mean，SEM）呈现。觅食行为（Foraging）(F₂,₂₆=0.38)、静栖行为（sitting）(F₂,₂₇=0.46)、行走行为（walking）(F₂,₂₇=1.68)及理羽行为（preening）(F₂,₂₇=2.54)均不受屏障处理的影响。停留行为（Perching）(F₁,₁₈=0.41)不受屏障类型的影响。惊扰行为（Disturbance）则受屏障×密度交互作用的影响（图3）。 2. 本研究采用混合模型重复测量方差分析（Mixed model repeated measures ANOVA），除奔跑行为（running）外，其余分析自由度均为2,27；因奔跑行为的均值按周合并，故其自由度为2,26。a 行内带有不同上标的均值组间差异具有统计学意义（P