The tree species pool of Amazonian wetland forests: Which species can assemble in periodically waterlogged habitats?

Autor(es)

Luize, Bruno Garcia ^{[1, 2]} ; Lima Magalhaes, Jose Leonardo ^[3] ; Queiroz, Helder ^[4] ; Lopes, Maria Aparecida ^[3] ; Venticinque, Eduardo Martins ^[5] ; Leao de Moraes Novo, Evlyn Marcia ^[6] ; Freire Silva, Thiago Sanna ^{[1, 2]}

Afiliação do(s) autor(es)

^[1] Univ Estadual Paulista UNESP, Inst Biociencias, Programa Posgrad Ecol & Biodiversidade, Sao Paulo - Brazil

^[2] Univ Estadual Paulista UNESP, Inst Geociencias & Ciencias Exatas, Dept Geog, Ecosyst Dynam Observ, Sao Paulo - Brazil

^[3] Univ Fed Para, Embrapa Amazonia Oriental, Inst Ciencias Biol, Programa Posgrad Ecol, Belem, Para - Brazil

^[4] Inst Desenvolvimento Sustentavel Mamiraua, Tefe, Amazonas - Brazil

^[5] Univ Fed Rio Grande Norte UFRN, Dept Ecol, Natal, RN - Brazil

^[6] Inst Nacl Pesquisas Espaciais, Div Sensoriamento Remoto, Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: PLoS One; v. 13, n. 5 MAY 29 2018.
• Citações Web of Science: 4

Resumo

We determined the filtered tree species pool of Amazonian wetland forests, based on confirmed occurrence records, to better understand how tree diversity in wetland environments compares to tree diversity in the entire Amazon region. The tree species pool was determined using data from two main sources: 1) a compilation of published tree species lists plus one unpublished list of our own, derived from tree plot inventories and floristic surveys; 2) queries on botanical collections that include Amazonian flora, curated by herbaria and available through the SpeciesLink digital biodiversity database. We applied taxonomic name resolution and determined sample-based species accumulation curves for both datasets, to estimate sampling effort and predict the expected species richness using Chao's analytical estimators. We report a total of 3 615 valid tree species occurring in Amazonian wetland forests. After surveying almost 70 years of research efforts to inventory the diversity of Amazonian wetland trees, we found that 74% these records were registered in published species lists (2 688 tree species). Tree species richness estimates predicted from either single dataset underestimated the total pooled species richness recorded as occurring in Amazonian wetlands, with only 41% of the species shared by both datasets. The filtered tree species pool of Amazonian wetland forests comprises 53% of the 6 727 tree species taxonomically confirmed for the Amazonian tree flora to date. This large proportion is likely to be the result of significant species interchange among forest habitats within the Amazon region, as well as in situ speciation processes due to strong ecological filtering. The provided tree species pool raises the number of tree species previously reported as occurring in Amazonian wetlands by a factor of 3.2. (AU)

• Processo FAPESP: 15/24554-0 - O papel das planícies de inundação na origem e manutenção da diversidade de espécies arbóreas na Amazônia
• Beneficiário: Bruno Garcia Luize
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 12/50260-6 - Estruturação e evolução da biota amazônica e seu ambiente: uma abordagem integrativa
• Beneficiário: Lúcia Garcez Lohmann
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOTA - Temático