Characterizing growth rings in the trees of Peru: A wood anatomical overview for potential applications in dendroecological-related fields

Autor(es)

Luis Marcelo-Pena, Jose ^{[1, 2]} ; Roig, Fidel A. ^{[3, 4]} ; Goodwin, Zoe A. ^[5] ; Tomazello-Filho, Mario ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Dept Ciencias Florestais, Escola Super Agr Luiz de Queiroz, Ave Padua Dias 11, Caixa Postal 09, BR-13418900 Piracicaba, SP - Brazil

^[2] Univ Nacl Jaen, Carrera Profes Ingn Forestal & Ambiental, Carretera Jaen San Ignacio Km 23, Jaen 06801 - Peru

^[3] Univ Nacl Cuyo, Dept Dendrocronol & Hist Ambiental, IANIGLA, CCT, CONICET, Av Ruiz Leal S-N, Cc 330, Mendoza - Argentina

^[4] Univ Mayor, Fac Ciencias, Hemera Ctr Observac Tierra, Santiago - Chile

^[5] Royal Bot Garden Edinburgh, 20A Inverleith Row, Edinburgh EH3 5LR, Midlothian - Scotland

• Tipo de documento: Artigo de Revisão
• Fonte: DENDROCHRONOLOGIA; v. 62, AUG 2020.
• Citações Web of Science: 0

Resumo

Sustainable forestry requires accurate ecological information such as species composition, growth rates and recruitment dynamics. Tree growth rates are usually obtained through long-term periodic re-measurements of individual trees or through the analysis of tree growth rings in stem cross sections. However, tree growth ring analysis was traditionally thought to be only possible in biomes with strong seasonality such as those found in high latitude temperate regions. A lack of data on the occurrence and characteristics of tree rings in tropical trees may be due to a lack of investigations. Here we characterise the growth rings of 183 tree species from seven forest types across an altitudinal gradient in northern and central Peru at macro-and microscopic levels. A correspondence analysis showed an association between phylogenetic relatedness and the level of distinctiveness in the growth rings. Deciduous species of seasonally dry tropical forests were associated with distinct growth rings and mainly delimited by marginal parenchyma, while indistinct growth rings were associated with ever-green trees from lowland Amazonian and pre-montane wet forests. Additionally, for the first time the presence of growth ring boundaries defined by marginal phloem is reported in two tropical tree species, Gallesia integrifolia (Spreng.) Harms and Vochysia mapirensis Rusby. This contribution represents the most exhaustive record to date of the occurrence and anatomy of growth rings in trees of the Peruvian tropics, which can be used to inform future dendrochronological studies. (AU)

• Processo FAPESP: 09/53951-7 - EMU: implantação de laboratório multiusuário especializado em métodos de espectroscopia de infravermelho próximo (NIR) e de densitometria de raios X em aplicações agro-florestais
• Beneficiário: Mario Tommasiello Filho
• Modalidade de apoio: Auxílio à Pesquisa - Programa Equipamentos Multiusuários
• Processo FAPESP: 17/50085-3 - PIRE: educação e pesquisa em clima das Américas usando os exemplos de anéis de árvores e espeleotemas (PIRE-CREATE)
• Beneficiário: Francisco William da Cruz Junior
• Modalidade de apoio: Auxílio à Pesquisa - Temático