Efeito Da Paisagem Sobre Os Atropelamentos De Mamíferos De Médio E Grande Porte No Sul De Goiás, Brasil

Araújo, Larissa Aparecida de Freitas; Hannibal, Wellington; Costa, Raoni Ribeiro Guedes Fonseca; Rossi, Reile Ferreira; Claro, Hermes Willyan Parreira

doi:10.4257/oeco.2020.2401.13

Cited by 3 publications

(12 citation statements)

References 20 publications

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“…The mammals Cerdocyon thous , Myrmecophaga tridactyla and Euphractus sexcinctus , with higher mortality on the BR‐158, were also recorded in other studies with roadkills on highways in the Cerrado biome (Brum et al, 2018; Cáceres et al, 2012; Carvalho‐Roel et al, 2021; Fraga et al, 2022; Miranda et al, 2017) and transitional areas between Cerrado and Atlantic Forest (Araujo et al, 2020). In many Brazilian studies, medium and large mammals appear as the most frequent group, whereas the small vertebrates (such as amphibians) frequency is low (Langen et al, 2007; Santos et al, 2012).…”

Section: Discussionsupporting

confidence: 61%

“…The presence of rivers and riparian corridors has been considered an attribute of permeability in fragmented landscapes, representing an important route for the dispersion of fauna, which may be associated with the roadkills of wild animals (Araujo et al, 2020;Bueno et al, 2015; Freitas et al, 2015). Specifically, in the Cerrado biome, some studies point to a higher probability of medium and large mammals roadkills in stretches close to rivers and riparian forests (Ascensão et al, 2017; Cáceres et al, 2012; Freitas et al, 2015).…”

Section: Discussionmentioning

confidence: 99%

“…In the central region of Brazil, the State of Goiás (GO), Braz and França (2016) observed a higher rate of amphibian roadkill in stretches associated with forest fragments, whereas they observed higher mortality of birds and reptiles in spaces near pastures and fields respectively. Araujo et al (2020) associated the species richness and composition of road‐killed mammals with proximity to water courses and the percentage of native vegetation cover, pointing to rivers as the main route where fauna disperses on the GO‐164 highway. In Mato Grosso do Sul State, Ascensão et al (2017) found that the presence of water and distance to riparian areas were relevant to explain the spatial patterns of roadkill records for many medium–large mammals.…”

Section: Introductionmentioning

confidence: 99%

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The influence of proximity with riparian forests and the distance from urban areas on roadkills of vertebrates in a fragmented Brazilian savanna area

et al. 2023

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The increasing development of highways severely threatens several vertebrates due to habitat fragmentation, edge effects and roadkills. Understanding how the landscape influences the occurrence of roadkills on highways can provide insights into the preferred routes of fauna dispersion and define the priority stretches to implement mitigation actions. This study evaluated the association between landscape characteristics and fauna roadkills on the BR‐158 highway (State of Mato Grosso do Sul, Brazil), where the adjacent vegetation encompasses phytophysiognomies of the Cerrado, a severely threatened biome. The spatial distribution of recorded road‐killed vertebrates (secondary data) was analysed using the statistical tool 2D Hotspot Identification, which defined the stretches with the highest mortality (hotspots). The surrounding landscape within a 1 km buffer zone around the highway was characterized based on area and distance information considering the land use and cover. Generalized linear models were applied to test the influence of locations on roadkill, considering the landscape characteristics as independent variables and the presence/absence of roadkill as the dependent variable. Our results indicated two hotspot stretches along the BR‐158 highway and a higher probability of roadkill in stretches associated with riparian forests and more distant from urban areas. The identification of landscape characteristics associated with the occurrence of vertebrate roadkills can help guide the planning and monitoring of highways. Furthermore, in dry ecosystems such as the Cerrado, we must provide information to implement priority actions in stretches of riparian forest, aiming to mitigate the adverse effects of highways on local biodiversity conservation.

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Section: Discussionsupporting

confidence: 61%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The influence of proximity with riparian forests and the distance from urban areas on roadkills of vertebrates in a fragmented Brazilian savanna area

et al. 2023

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“…A presença de rios e corredores ripários tem sido considerada um atributo de permeabilidade em paisagens fragmentadas, representando uma importante rota de dispersão da fauna, que pode estar associada aos atropelamentos de animais silvestres (Araujo et al, 2020; Bueno et al, 2015; Freitas et al, 2015). Especificamente, no bioma Cerrado, alguns estudos apontam para uma maior probabilidade de atropelamentos de mamíferos de médio e grande porte em trechos próximos a rios e matas ciliares (Ascensão et al, 2017; Cáceres et al, 2012; Freitas et al, 2015).…”

Section: Discussionunclassified

“…Na região central do Brasil, no Estado de Goiás (GO), Braz and França (2016) observaram maior taxa de atropelamento de anfíbios em trechos associados a fragmentos de floresta, enquanto observaram maior mortalidade de aves e répteis em espaços próximos a pastagens e campos, respectivamente. Araujo et al (2020) associaram a riqueza de espécies e a composição de mamíferos atropelados à proximidade de cursos d'água e ao percentual de cobertura de vegetação nativa, apontando os rios como a principal rota de dispersão da fauna na rodovia GO‐164. No Estado do Mato Grosso do Sul, Ascensão et al (2017) constataram que a presença de água e a distância de áreas ripárias foram relevantes para explicar os padrões espaciais de registros de atropelamentos para muitos mamíferos de médio‐grande porte.…”

Section: Introductionunclassified

A influência da proximidade com as matas ciliares e a distância das áreas urbanas nos atropelamentos de vertebrados em uma área fragmentada do Cerrado brasileiro

Martins,

Freitas,

Semensatto

et al. 2023

Austral Ecology

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ResumoO crescente desenvolvimento das rodovias ameaça gravemente vários vertebrados devido à fragmentação do habitat, ao efeito de borda e aos atropelamentos. A compreensão de como a paisagem influencia a ocorrência de atropelamentos em rodovias pode fornecer informações sobre as rotas preferenciais de dispersão da fauna e definir os trechos prioritários para a implementação de ações de mitigação. Este estudo avaliou a associação entre as características da paisagem e os atropelamentos de fauna na rodovia BR‐158 (Estado de Mato Grosso do Sul, Brasil), onde a vegetação adjacente compreende fitofisionomias do Cerrado, um bioma gravemente ameaçado. A distribuição espacial dos vertebrados atropelados registrados (dados secundários) foi analisada usando a ferramenta estatística 2D Hotspot Identification, que definiu os trechos com maior mortalidade (hotspots). A paisagem circundante em uma área buffer de 1 km ao redor da rodovia foi caracterizada com base em informações de área e distância, considerando o uso e a cobertura da terra. Foram aplicados modelos lineares generalizados para testar a influência dos locais no atropelamento, considerando as características da paisagem como variáveis independentes e a presença/ausência de atropelamento como variável dependente. Nossos resultados indicaram dois hotspots ao longo da BR‐158 e uma maior probabilidade de atropelamento em trechos associados a matas ciliares e mais distantes de áreas urbanas. A identificação das características da paisagem associadas à ocorrência de atropelamentos de vertebrados pode ajudar a orientar o planejamento e o monitoramento de rodovias. Além disso, em ecossistemas secos como o Cerrado, precisamos fornecer informações para implementar ações prioritárias em trechos de mata ciliar, com o objetivo de mitigar os impactos negativos das rodovias na conservação da biodiversidade local.

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Mammalian Roadkill in a Semi-Arid Region of Brazil: Species, Landscape Patterns, Seasonality, and Hotspots

et al. 2023

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Roadkill is one of the principal causes of the loss of biodiversity around the world. The effects of roads on mammals are still poorly understood in regions with a semi-arid climate, where many knowledge gaps persist. The present study provides an inventory of the mammalian species affected on highways in northeastern Brazil, as well as identifying roadkill hotspots and contributing to the understanding of how seasonality and the landscape may influence the roadkill patterns of wild mammals. A total of 6192.52 km of road were sampled in 53 field surveys conducted between 2013 and 2017. Landsat 8 satellite images and data from the MapBiomas platform were used to classify land use and cover for analysis. Buffers of 1 km, 5 km, and 10 km were created around the study roads to identify the landscape variables associated with roadkill events. Ripley’s 2D K-Statistics and the 2D HotSpot test were used to identify roadkill aggregations and hotspots; GLMMs were generated for the landscape variables and evaluated using the Akaike Information Criterion. The Kruskal–Wallis test was applied to investigate the potential effects of seasonality. A total of 527 wild animal carcasses were recorded as a result of vehicular collision. The species with the highest roadkill records were Cerdocyon thous, Euphractus sexcinctus, and Procyon cancrivorus, while two species—Leopardus emiliae and Herpailurus yagouaroundi—are considered to be under threat of extinction. For mammals in general, the best GLMM indicated an increase in roadkills with increasing density of local vegetation areas, and a decrease as urban areas increased. The model also found that the mammals were less impacted in the vicinity of a protected area. In the specific case of C. thous, the roadkill rate was lower when urban infrastructure was more common than dense vegetation; the rate increased as areas of dense vegetation increased. In the case of P. cancrivorus and E. sexcinctus, the best models of roadkill patterns included an area of exposed soil and sparse vegetation, respectively. Roadkill rates were higher in the rainy season for all the mammals, with the exception of C. thous. These results reflect the ecological characteristics of the species with the highest roadkill rates. The findings of the present study raise concerns with regard to the impact of highways on the populations of C. thous, as well as the region’s most threatened species. They also indicate the potential functionality of the local protected area, as well as identifying roadkill hotspots, which will support the development of effective mitigation measures.

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Efeito Da Paisagem Sobre Os Atropelamentos De Mamíferos De Médio E Grande Porte No Sul De Goiás, Brasil

Cited by 3 publications

References 20 publications

The influence of proximity with riparian forests and the distance from urban areas on roadkills of vertebrates in a fragmented Brazilian savanna area

The influence of proximity with riparian forests and the distance from urban areas on roadkills of vertebrates in a fragmented Brazilian savanna area

A influência da proximidade com as matas ciliares e a distância das áreas urbanas nos atropelamentos de vertebrados em uma área fragmentada do Cerrado brasileiro

Mammalian Roadkill in a Semi-Arid Region of Brazil: Species, Landscape Patterns, Seasonality, and Hotspots

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