Appendices

Appendix 1. Maximum, median, and minimum of environmental factors at each sampling site. Appendix 2. Value of each environmental factor at the centre of each 500 × 500-m grid. Appendix 3. Correlation coefficients and scatter plots among five environmental factors at the sampling sites, and histograms of each environmental factor. Appendix 4. Monthly average temperature during the breeding season at each sampling site. Appendix 5. Details of the N-mixture model. Appendix 6. Results of model averaging for the N-mixture models when we used observation clock time and its squared term as explanatory variables in the detection model. Appendix 7. Results of model selection. Appendix 8. Results of the Generalised Linear Mixed Models (GLMMs) used to test for the effect of spatial autocorrelation among sites.

附录1 各采样点环境因子的最大值、中位数与最小值。附录2 每个500×500米网格中心点的各环境因子数值。附录3 采样点处5种环境因子间的相关系数与散点图，以及各环境因子的直方图。附录4 各采样点繁殖季的月平均气温。附录5 N-mixture模型（N-mixture model）的详细信息。附录6 当在检测模型中以观测时刻及其二次项作为解释变量时，N-mixture模型的模型平均结果。附录7 模型选择结果。附录8 用于检验各采样点间空间自相关效应的广义线性混合模型（Generalised Linear Mixed Models, GLMMs）结果。