The main factors affecting specific road casualty rates are related to life-history traits, road features, and landscape variables. After road inauguration, roadkill rate and spatial and temporal patterns can change substantially due to changes in traffic intensity, avoidance behaviour or local population decline. Despite the Canary Islands constituting a biodiversity hotspot, Canarian ecosystems are highly threatened because of the high human density, and studies on anthropogenic sources of mortality of wildlife are scarce. Here, we counted roadkills during two annual cycles after the inauguration of an 8.8-km-road section on Tenerife, the largest and most densely populated island of the Canaries. We counted 694 roadkills belonging to a minimum of 19 species of birds and six species of introduced mammals. Seasonal variation was apparent during both annual cycles, particularly for birds, being the majority of victims concentrated in May and June. Although traffic intensity increased since road inauguration, the number of roadkills decreased significantly in the second annual cycle. The reduction in road mortality in the second cycle could be related to some non-mutually exclusive factors such as population decline, road avoidance, or weather conditions. As road networks of the Canary Islands are still increasing, further studies quantifying road mortality impacts on Canarian ecosystems and threatened species are urgently needed to guarantee the management and conservation of its fragile wildlife.

影响具体道路伤亡率的主要因素与生活史特征、道路特征和景观变量有关。道路开通后，道路杀伤率和时空格局会因交通强度、避让行为或当地人口减少而发生重大变化。尽管加那利群岛构成生物多样性热点，但由于人口密度高，加那利生态系统受到高度威胁，而关于野生动物死亡的人为来源的研究很少。在这里，我们统计了加那利群岛最大、人口最稠密的岛屿特内里费岛 8.8 公里路段开通后两个年度周期内的道路死亡人数。我们统计了属于至少 19 种鸟类和 6 种外来哺乳动物的 694 起道路事故。在两个年度周期中，季节性变化都很明显，尤其是鸟类，大多数受害者集中在 5 月和 6 月。尽管自道路开通以来交通强度有所增加，但道路死亡人数在第二个年度周期中显着下降。第二个周期道路死亡率的降低可能与一些非互斥因素有关，例如人口减少、道路避让或天气状况。由于加那利群岛的道路网络仍在增加，迫切需要进一步研究量化道路死亡率对加那利生态系统和受威胁物种的影响，以确保对其脆弱的野生动物的管理和保护。尽管自道路开通以来交通强度有所增加，但道路死亡人数在第二个年度周期中显着下降。第二个周期道路死亡率的降低可能与一些非互斥因素有关，例如人口减少、道路避让或天气状况。由于加那利群岛的道路网络仍在增加，迫切需要进一步研究量化道路死亡率对加那利生态系统和受威胁物种的影响，以确保对其脆弱的野生动物的管理和保护。尽管自道路开通以来交通强度有所增加，但道路死亡人数在第二个年度周期中显着下降。第二个周期道路死亡率的降低可能与一些非互斥因素有关，例如人口减少、道路避让或天气状况。由于加那利群岛的道路网络仍在增加，迫切需要进一步研究量化道路死亡率对加那利生态系统和受威胁物种的影响，以确保对其脆弱的野生动物的管理和保护。