Plant diversity conservation in highly deforested landscapes of the Brazilian Atlantic Forest

Autor(es)

Mangueira, Julia R. S. A. ^[1] ; Vieira, Leandro T. A. ^[2] ; Azevedo, Thais N. ^[3] ; Sabino, Ana Paula S. ^[4] ; Ferraz, Katia M. P. M. B. ^[5] ; Ferraz, Silvio F. B. ^[5] ; Rother, Debora C. ^{[6, 5]} ; Rodrigues, Ricardo R. ^[4]

Afiliação do(s) autor(es)

^[1] Univ Estadual Campinas, Biol Inst, Plant Biol Dept, BR-13083862 Campinas, SP - Brazil

^[2] Univ Prebiteriana Mackenzie, MACK Herbarium, BR-01302907 Sao Paulo, SP - Brazil

^[3] Paulista Univ UNIP, BR-01533000 Sao Paulo, SP - Brazil

^[4] Univ Sao Paulo, Luiz de Queiroz Coll Agr, Biol Sci Dept, BR-13418900 Piracicaba, SP - Brazil

^[5] Univ Sao Paulo, Luiz de Queiroz Coll Agr, Forest Sci Dept, BR-13418900 Piracicaba, SP - Brazil

^[6] Univ Sao Paulo, Inst Biosci, Dept Ecol, BR-05508090 Sao Paulo, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: PERSPECTIVES IN ECOLOGY AND CONSERVATION; v. 19, n. 1, p. 69-80, JAN-MAR 2021.
• Citações Web of Science: 0

Resumo

Different types of matrices can perform different disturbance regimes over remnant forests, which can ultimately affect plant diversity. To address these issues, we studied 60 plots in forest remnants embedded within sugarcane plantations and pasturelands in the Atlantic Forest of Southeastern Brazil. Our objectives were to evaluate general patterns of plant diversity and to assess the influence of landscape structure and dynamics on plant richness and diversity. We recorded 297 species in two strata. (DBH superior stratum >= 4.8 cm > inferior stratum). Overall, diversity of the inferior stratum was higher in pastureland forest remnants than in sugarcane matrices. In the superior stratum, time since abandonment represented a greater influence. Considering the partition of diversity, more than 40% of total diversity was due to the alpha component alone in all cases, but it was significantly lower than expected. Beta components among forest remnants, landscapes and matrices were higher than expected for both strata, whether together or separately. Habitat heterogeneity showed a higher contribution to the total floristic diversity, but among remnants this contribution was even more significant. Forest remnants in pasturelands had a more dynamic land use history and parameters of landscape dynamics were more related to plant diversity. For remnants in the sugarcane matrices, species richness and composition were explained by landscape structure. Our results highlight that there is an important plant community diffused in the forest remnants of human-modified landscapes. Therefore, conserving the majority of remnants and restoring degraded ones must be a key conservation strategy. (C) 2021 Associacao Brasileira de Ciencia Ecol ogica e Conservacao. Published by Elsevier B.V. (AU)

• Processo FAPESP: 11/06782-5 - Avaliação multi-escala de impactos ambientais em paisagem agrícola
• Beneficiário: Katia Maria Paschoaletto Micchi de Barros Ferraz
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 13/50718-5 - Restauração ecológica de florestas ciliares, de florestas nativas de produção econômica e de fragmentos florestais degradados (em APP e RL), com base na ecologia de restauração de ecossistemas de referência, visando testar cientificamente os preceitos do Novo Código Florestal Brasileiro
• Beneficiário: Ricardo Ribeiro Rodrigues
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOTA - Temático
• Processo FAPESP: 99/09635-0 - Diversidade, dinâmica e conservação de árvores em florestas do estado de São Paulo: estudos em parcelas permanentes
• Beneficiário: Ricardo Ribeiro Rodrigues
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOTA - Temático