Universidade de Brasília, Centro de Estudos do Cerrado da Chapada dos Veadeiros, Gleba 02, Setor Planalto, 73770-000 Alto Paraíso de Goiás, GO, Brazil.
Universidade de Brasília, Faculdade de Tecnologia, Laboratório de Fauna e Unidades de Conservação, Departamento de Engenharia Florestal, Campus Darcy Ribeiro, Asa Norte, 70910-900 Brasília, DF, Brazil.
An Acad Bras Cienc. 2022 Oct 3;94(suppl 3):e20220041. doi: 10.1590/0001-3765202220220041. eCollection 2022.
The interaction between animal movement and roads is pervasive, but little is known of the effects of the land-use patterns in roadside landscapes on roadkill events. Here, we compared wildlife roadkill along two road stretches that cross landscapes with different land-use patterns, including the presence of protected areas in Central Brazil. Sampling was conducted in 2017 and 2018 in two seasons (dry and rainy). We expected roadkill events to be more frequent bordering the protected area. Roadkill occurred more frequently in the rainy season in the unprotected landscape. Birds were most frequently recorded in the unprotected (44%, n = 76) than in the protected landscape (37%, n = 48). The least recorded group in the unprotected landscape was Squamata (11%, n = 18), while mammals were less detected in the protected landscape (14%, n = 18). Classes 'agriculture' and 'savanna' were related to amphibian roadkill numbers. For Squamata, we observed the effect of the presence of forests in the protected landscape. Bird roadkill was affected by protection level, while the presence of pasture and the level of protection explained mammal roadkill. Differences in roadkill patterns reinforce the need for long-term management of this source of mortality for the Cerrado fauna.
动物运动与道路的相互作用是普遍存在的，但对于道路沿线景观中的土地利用模式对道路死亡事件的影响知之甚少。在这里，我们比较了两条穿过具有不同土地利用模式景观的道路的野生动物道路死亡事件，包括巴西中部保护区的存在。采样于 2017 年和 2018 年在两个季节（旱季和雨季）进行。我们预计保护区边缘的道路死亡事件会更频繁。在无保护的景观中，雨季的道路死亡事件更为频繁。在无保护的景观中（44%，n = 76）比在受保护的景观中（37%，n = 48）记录到的鸟类更多。在无保护的景观中记录最少的是蜥蜴类（11%，n = 18），而在受保护的景观中记录最少的是哺乳动物（14%，n = 18）。“农业”和“稀树草原”类与两栖类道路死亡数量有关。对于蜥蜴类，我们观察到保护区内森林存在的影响。鸟类道路死亡受到保护水平的影响，而牧场的存在和保护水平解释了哺乳动物道路死亡。道路死亡模式的差异强调了对塞拉多动物群这种死亡源进行长期管理的必要性。
