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Evaluation of tree growth in a gradient Atlantic Forest - Cerrado - Caatinga and its relations with climate change

Grant number: 18/24514-7
Support Opportunities:Scholarships in Brazil - Doctorate
Effective date (Start): March 01, 2019
Effective date (End): April 30, 2022
Field of knowledge:Biological Sciences - Ecology - Ecosystems Ecology
Principal Investigator:Peter Stoltenborg Groenendyk
Grantee:José Roberto Vieira Aragão
Host Institution: Instituto de Biologia (IB). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
Associated research grant:18/01847-0 - DendroGrad: Tree-rings, wood anatomy and hydraulic traits do evaluate long-term CO2-fertilisation effects across environmental gradients on three tropical tree species, AP.JP


Tropical forests provide crucial ecosystem services as they work to maintain the balance of biogeochemical and hydrological cycles. Numerous researches have sought to understand how the tree growth of these forests has evolved in recent years, from the perspective of possible climate change. However, most of these efforts cover short periods of observation, which do not allow us to evaluate whether differences in tree growth are linked to acclimatization or variations of plant age and ontogeny. In view of these problems, the objective of this work is to perform a study of growth rings, functional attributes of wood, and ecological niche models of arboreal taxa in an Atlantic Forest, Cerrado and Caatinga gradient, in order to answer the following questions: (1) What is the climate-growth relationship in the vegetation along the gradient? (2) Are there variations in hydraulic attributes along this gradient? (3) Are there trade-offs of resistance and plasticity in hydraulic attributes between species along the gradient? (4) Is there an increase in the efficiency of water use of species over time? (5) Niche models integrated with functional traits increase the accuracy of predictions about the potential niche of species in the future? In order to do this, wood samples and branches (leaves) will be made in the Ubajara National Park, the Aiuaba Ecological Station and the Araripe National Forest, in areas corresponding to the three evaluated gradient ecosystems. The collected samples will be analyzed by growth rings, functional, isotopic attributes of the wood and niche of each species. The aim of this paper is to solve problems regarding the understanding of climate-growth relationships of tropical forest taxa in the face of climate change. (AU)

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
ARAGAO, V, JOSE ROBERTO; ZUIDEMA, PIETER A.; GROENENDIJK, PETER. limate-growth relations of congeneric tree species vary across a tropical vegetation gradient in Brazi. DENDROCHRONOLOGIA, v. 71, . (18/01847-0, 18/24514-7)
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
ARAGÃO, José Roberto Vieira. Structural, chemical and growth variations of the woody of species distributed along a neotropical seasonal gradient (evergreen forest-savannah-dry forest) and their relationships with climate change. 2022. Doctoral Thesis - Universidade Estadual de Campinas (UNICAMP). Instituto de Biologia Campinas, SP.

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