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Effects of deforestation on multitaxa community similarity in the Brazilian Atlantic Forest

2024; Wiley; Linguagem: Inglês

10.1111/cobi.14419

1523-1739

Daniel Maurenza, Renato Crouzeilles, Jayme Augusto Prevedello, Mauricio Almeida‐Gomes, Marina Schmoeler, Renata Pardini, Cristina Banks‐Leite, Marcus Vinícius Vieira, Jean Paul Metzger, Carlos Roberto Fonseca, Marina Zanin, Alex Mendes, Andrea Larissa Boesing, Andréia Alves Rezende, Bruno K. C. Filgueiras, Camila dos Santos de Barros, Candelaria Estavillo, Carlos A. Peres, Carolina Franco Esteves, Dary Moreira Gonçalves Rigueira, Deborah Faria, Eduardo Mariano‐Neto, Eliana Cazetta, Elivane Salete Capellesso, Emerson Monteiro Vieira, Érica Hasui, Euvaldo Marciano Santos Silva Júnior, Flávio Nunes Ramos, Francisco Sanches Gomes, Gabriela Paise, Inara R. Leal, José Carlos Morante‐Filho, Juliano André Bogoni, Kátia Maria Paschoaletto Micchi de Barros Ferraz, Larissa Rocha‐Santos, Luciana Carvalho dos Reis, Luciano Carramaschi de Alagão Querido, Luiz Fernando Silva Magnago, Luiz Gustavo Rodrigues Oliveira‐Santos, Marcelo Passamani, Marcelo Tabarelli, Márcia C. M. Marques, Marília Mascarenhas Lima, Marlla Alves Matos, Maurício Eduardo Graipel, Maxwell Souza Silveira, Michaele S. Pessoa, Nathália Vieira Hissa Safar, Pedro H. S. Brancalion, Tiago Jordão Porto, Thomas Püttker,

Wildlife Ecology and Conservation

Abstract Habitat loss can lead to biotic homogenization (decrease in β diversity) or differentiation (increase in β diversity) of biological communities. However, it is unclear which of these ecological processes predominates in human‐modified landscapes. We used data on vertebrates, invertebrates, and plants to quantify β diversity based on species occurrence and abundance among communities in 1367 landscapes with varying amounts of habitat (<30%, 30−60%, or >60% of forest cover) throughout the Brazilian Atlantic Forest. Decreases in habitat amount below 30% led to increased compositional similarity of vertebrate and invertebrate communities, which may indicate a process of biotic homogenization throughout the Brazilian Atlantic Forest. No pattern was detected in plant communities. We found that habitat loss was associated with a deterministic increase in faunal community similarity, which is consistent with a selected subset of species being capable of thriving in human‐modified landscapes. The lack of pattern found in plants was consistent with known variation between taxa in community responses to habitat amount. Brazilian legislation requiring the preservation of 20% of Atlantic Forest native vegetation may be insufficient to prevent the biotic homogenization of faunal communities. Our results highlight the importance of preserving large amounts of habitat, providing source areas for the recolonization of deforested landscapes, and avoiding large‐scale impacts of homogenization of the Brazilian Atlantic Forest.