Seasonality and paving affect roadkill rates on a highway in Cerrado biome, Brazil

Wanessa Gomes Pereira; Jasmine de Resende Assis; Isabela Solha Basile; Ana Elizabeth Iannini-Custódio; Carine Firmino Carvalho-Roel

doi:10.15451/ec2025-08-14.28-1-18

Authors

Wanessa Gomes Pereira Laboratório de Ecologia de Mamíferos (LEMA), Instituto de Biologia, Universidade Federal de Uberlândia, Rua Ceará (esquina com rua Amazonas), s/n, Bairro Umuarama, Uberlândia, MG, 38405-302, Brasil https://orcid.org/0000-0003-2267-8659
Jasmine de Resende Assis Laboratório de Ecologia de Mamíferos (LEMA), Instituto de Biologia, Universidade Federal de Uberlândia, Rua Ceará (esquina com rua Amazonas), s/n, Bairro Umuarama, Uberlândia, MG, 38405-302, Brasil https://orcid.org/0000-0003-0011-1774
Isabela Solha Basile Laboratório de Ecologia de Mamíferos (LEMA), Instituto de Biologia, Universidade Federal de Uberlândia, Rua Ceará (esquina com rua Amazonas), s/n, Bairro Umuarama, Uberlândia, MG, 38405-302, Brasil
Ana Elizabeth Iannini-Custódio Instituto de Biologia, Universidade Federal de Uberlândia, Rua Ceará (esquina com rua Amazonas), s/n, Bairro Umuarama, Uberlândia, MG, 38405-302, Brasil https://orcid.org/0000-0002-2536-6880
Carine Firmino Carvalho-Roel Programa de Pós-graduação em Ecologia, Conservação e Biodiversidade, Universidade Federal de Uberlândia, Rua Ceará, 1084, Uberlândia, MG, 38405-240, Brasil https://orcid.org/0000-0002-8496-3706

DOI:

https://doi.org/10.15451/ec2025-08-14.28-1-18

Keywords:

Road Ecology, Dirt road, Paved road, Wildlife-vehicle accidents, Panga Ecological Station

Abstract

Wildlife roadkill poses a significant global threat to biodiversity, with heightened concerns in Protected Areas, such as the Panga Ecological Station (PES) located in the Cerrado biome, Minas Gerais state, Brazil. Throughout this research, the adjacent highway to the PES, MGC-455 highway, underwent paving. To assess roadkill rates and explore the potential impact of seasonality and road pavement type, bimonthly monitoring was conducted along the highway. The survey spanned 35 km of paved and 10 km of unpaved road from April 2012 to April 2013, and 50 km of paved and 30 km of unpaved road from May 2013 to April 2015, covering a total distance of 4,820 km. Despite the extended survey period, progress in the highway's paving remained minimal. A total of 87 individuals were identified, comprising 38 birds, 24 reptiles, 17 mammals, and eight amphibians. Across the documented species (37 in total), there were 15 bird species, 12 reptile species, eight mammal species, and two amphibian species. The roadkill rate for wild vertebrates was 0.008 individuals/km/day, likely underestimated. Reptile roadkill was notably prevalent during the rainy season. Roadkill rates were approximately six times higher on paved stretches (0.006 individuals/km/day) compared to unpaved sections (0.001). The presence of endangered species in the area emphasizes the ongoing need for monitoring roadkill, particularly with the anticipated rise in roadkill rates due to the continued highway paving. Future comparisons can be drawn between our data and post-paving roadkill rates to assess potential increases.

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