Appendix A. Supplementary information about the distribution, selection, and proportional land cover of study sites and data on mark-recapture rates of the seven study species along the rural to urban gradient in greater Washington, D.C., USA.

Supplementary information about the distribution, selection, and proportional land cover of study sites and data on mark-recapture rates of the seven study species along the rural to urban gradient in greater Washington, D.C., USA.本补充资料涵盖两项内容：其一为研究样地的分布状况、样地遴选依据及土地覆被占比相关信息；其二为美国大华盛顿哥伦比亚特区都会区内沿城乡梯度的7种研究物种的标记重捕（mark-recapture）率数据。