Navegando por Assunto "vertebrates"

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Artigo
Distance sampling surveys reveal 17 million vertebrates directly killed by the 2020’s wildfres in the Pantanal, Brazil.
(Scientifc Reports, 2021-12) Tomas, Walfrido Moraes; Berlinck, Christian Niel; Chiaravalloti, Rafael Morais; Faggioni, Gabriel Paganini; Strüssmann, Christine; Libonati, Renata; Abrahão, Carlos Roberto; Alvarenga, Gabriela do Valle; Bacellar, Ana Elisa de Faria; Batista, Flávia Regina de Queiroz; Bornato, Thainan Silva; Camilo, André Restel; Castedo, Judite; Fernando, Adriana Maria Espinóza; Freitas, Gabriel Oliveira de; Garcia, Carolina Martins; Gonçalves2, Henrique Santos; Guilherme, Mariella Butti de Freitas; Layme, Viviane Maria Guedes; Lustosa, Ana Paula Gomes; Oliveira, Ailton Carneiro De; Oliveira, Maxwell da Rosa; Pereira, Alexandre de Matos Martins; Rodrigues, Julia Abrantes; Semedo, Thiago Borges Fernandes; Souza, Rafael Augusto Ducel de; Tortato, Fernando Rodrigo; Viana, Diego Francis Passos; Vicente‑Silva, Luciana; Morato, Ronaldo
Anthropogenic factors have significantly influenced the frequency, duration, and intensity of meteorological drought in many regions of the globe, and the increased frequency of wildfires is among the most visible consequences of human-induced climate change. Despite the fire role in determining biodiversity outcomes in different ecosystems, wildfires can cause negative impacts on wildlife. We conducted ground surveys along line transects to estimate the first-order impact of the 2020 wildfires on vertebrates in the Pantanal wetland, Brazil. We adopted the distance sampling technique to estimate the densities and the number of dead vertebrates in the 39,030 square kilometers affected by fire. Our estimates indicate that at least 16.952 million vertebrates were killed immediately by the fires in the Pantanal, demonstrating the impact of such an event in wet savanna ecosystems. The Pantanal case also reminds us that the cumulative impact of widespread burning would be catastrophic, as fire recurrence may lead to the impoverishment of ecosystems and the disruption of their functioning. To overcome this unsustainable scenario, it is necessary to establish proper biomass fuel management to avoid cumulative impacts caused by fire over biodiversity and ecosystem services.