Model selection results for distance sampling models estimating group density for the focal herbivore species.

Model-averaged predictions were made using models within 1 delta AIC score of the top model; top models were used if there were no closely-competing models. Continuous covariates may appear in models as a linear, logarithmic (log), or 2nd-order polynomial (poly) association with the parameter.模型平均预测通过选取与最优模型赤池信息准则（AIC）差值不超过1的模型生成；若不存在紧密竞争的模型，则直接采用最优模型。连续协变量在模型中可与该参数呈现线性、对数（log）或二阶多项式（poly）关联形式。