Candidate models examining factors influencing the species richness of small mammals on roadside right-of-ways (ROWs) in west-central Illinois, USA.

Number of parameters (k), AICc, change in AICc (ΔAICc), and AICc weights (AICcWt) are reported. Models include variables for the height of non-woody vegetation (Height), visual obstruction (VO), non-linear response to visual obstruction (VO-nonlinear), ROW width (ROW), the combined width of ROWs on both sides of the road (ROWtotal), soil compaction (Soil), forb cover (Forb), grass cover (Grass), an index of vegetative biomass (Biomass), average annual daily traffic (AADT), synergistic effect of ROW width and traffic (SYN), and the presence or absence of perches for birds (Perch).Candidate models examining factors influencing the species richness of small mammals on roadside right-of-ways (ROWs) in west-central Illinois, USA.本研究报告了参数数量（以千为单位，记为k）、校正Akaike信息准则（AICc）、校正Akaike信息准则变化量（ΔAICc）以及校正Akaike信息准则权重（AICcWt）。本次构建的候选模型集合涵盖以下变量：非木本植被高度（Height）、视觉遮挡度（VO）、视觉遮挡度的非线性响应（VO-nonlinear）、单侧道路路权宽度（ROW）、道路两侧路权总宽度（ROWtotal）、土壤紧实度（Soil）、杂类草盖度（Forb）、草本盖度（Grass）、植被生物量指数（Biomass）、年平均日交通量（AADT）、路权宽度与交通量的协同效应（SYN），以及鸟类栖息点的有无（Perch）。该候选模型集旨在探究美国伊利诺伊州中西部地区道路路权（ROWs）范围内小型哺乳动物的物种丰富度影响因素。