Estimates of roadkill rates varied greatly across species (median=0.05 ind./km/year, SD=5.89 ind./km/year), with several taxa, particularly birds and reptiles, estimated to suffer high mortality rates in Galápagos and Napo (Table 2; Appendix 1). Although most roadkilled species were categorized as Least Concern by the IUCN Red List (IUCN, 2022), six species were found in a category of conservation concern, and two as Data Deficient (Table 3). While roadkill rates for these threatened species are not very high, due to their vulnerability, road mortality could pose a threat to their persistence. Although the tapeti (Sylvilagus brasiliensis ), considered as Endangered, was reported in four studies with a median roadkill rate of 0.028 ind./km/year (range=0.008-0.79), it is possible that these records correspond to other Sylvilagus species, as the IUCN restricts the distribution of S. brasiliensis to Pernambuco-Brazil (IUCN, 2022).

Table 2 . Top ten most roadkilled wildlife in Ecuador as reported in systematic surveys. We report taxonomic information (class, order and species name), IUCN Red List status, the number of studies in which that species was recorded, the estimated standardized roadkill rate (if a species was detected in more than one study, we report its highest rate), and the province for the reported roadkill rate.