Wildlife‒vehicle collision (WVC) data usually contain two types: the reported WVC data and
carcass removal data. Previous studies often found a discrepancy between the number of
reported WVC and carcass removal data, and the quality of both datasets is affected by
underreporting. Underreporting means the number of WVCs is not fully recorded in the
database; neglecting the underreporting in WVC data may result in biased parameter
estimation results. In this study, a copula regression model linking wildlife‒vehicle collisions …

Wildlife-vehicle collision (WVC) data usually contain two types: the reported WVC data and
carcass removal data. Previous studies often found a discrepancy between the number of
reported WVC and carcass removal data, and the quality of both datasets is affected by
underreporting. Underreporting means the number of WVCs is not fully recorded in the
database; neglecting the underreporting in WVC data may result in biased parameter
estimation results. In this study, a copula regression model linking wildlife-vehicle collisions …