Mangrove fragments as key coastal reservoirs of taxonomic and functional biodiversity

Autor(es)

Corte, Guilherme N. ^{[1, 2, 3]} ; Checon, Helio H. ^{[1, 2]} ; Shah Esmaeili, Yasmina ^[4] ; Lefcheck, Jonathan S. ^[5] ; Amaral, A. Cecilia Z. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Campinas, Inst Biol, Campinas, SP - Brazil

^[2] Univ Sao Paulo, Inst Oceanog, Sao Paulo, SP - Brazil

^[3] Univ Vale Itajai, Escola Mar Ciencia & Tecnol, Itajai, SC - Brazil

^[4] Univ Estadual Campinas, Inst Biol, Programa Posgrad Ecol, Campinas, SP - Brazil

^[5] Smithsonian Environm Res Ctr, Tennenbaum Marine Observ Network, MarineGEO, POB 28, Edgewater, MD 21037 - USA

• Tipo de documento: Artigo Científico
• Fonte: BIODIVERSITY AND CONSERVATION; v. 30, n. 5, p. 1573-1593, APR 2021.
• Citações Web of Science: 0

Resumo

Mangrove forests globally suffer from habitat destruction and fragmentation, which may result in severe reductions in mangrove ecosystem biodiversity and functioning. We explored the influence of mangrove fragments on the taxonomic and functional biodiversity of invertebrate macrobenthic assemblages in a coastal seascape that has undergone substantial changes over the past decades, including a 60% reduction of mangrove areas between 1960s and now. Samples for macrobenthic invertebrate diversity (infauna and epifauna) and environmental variables were collected inside three fragmented mangrove stands and in an adjoining sandflat. We found that the total density of individuals was, on average, lower inside the existing stands; however, this outcome was driven by the higher abundance of small-sized opportunistic species in the sandflat. On the other hand, taxonomic and functional metrics were higher inside the stands, and species associated with mangroves had larger body size, higher mobility, longer lifespan, and belonged to a larger variety of trophic guilds than species inhabiting the adjacent sandflat. We also found that local environmental features such as wave exposure and total organic carbon content influenced mangrove biodiversity, and different stands harbor different set of species. Interestingly, the area of mangrove stand did not affect taxonomic or functional metrics. Overall, our results provide empirical evidence that even small mangrove fragments enhance functional and taxonomic coastal biodiversity relative to bare sediment and therefore should be preserved to safeguard coastal biodiversity. (AU)

• Processo FAPESP: 16/10810-8 - Ecologia bêntica da Baía do Araçá: análise da fauna associada ao sedimento e da relação ambiente biodiversidade
• Beneficiário: Guilherme Nascimento Corte
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 11/50317-5 - Biodiversidade e funcionamento de um ecossistema costeiro subtropical: subsídios para gestão integrada
• Beneficiário: Antonia Cecília Zacagnini Amaral
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOTA - Temático
• Processo FAPESP: 17/17071-9 - Preservando praias arenosas: biodiversidade, bens e serviços e impactos em um ecossistema negligenciado
• Beneficiário: Guilherme Nascimento Corte
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 18/22036-0 - Avaliação do potencial de diferentes índices bentônicos para determiner a integridade ecólogica de praias arenosas: subsídios para práticas de manejo e monitoramento
• Beneficiário: Hélio Hermínio Checon
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 18/05099-9 - Comunidades de peixes da zona de surfe de praias arenosas: investigando os mitos, explorando diferentes metodologias e fornecendo conhecimento para estratégias de manejo
• Beneficiário: Yasmina Michel Liliane Shah Esmaeili
• Modalidade de apoio: Bolsas no Brasil - Doutorado