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Twentieth century changes of tree ring isotopes in Southeastern Brazilian forests: how do climate conditions influence growth and water use efficiency and thus enforce tree migration

Grant number: 12/50457-4
Support type:Regular Research Grants
Duration: May 01, 2013 - December 31, 2015
Field of knowledge:Biological Sciences - Botany - Plant Morphology
Cooperation agreement: DFG
Principal Investigator:Veronica Angyalossy
Grantee:Veronica Angyalossy
Principal investigator abroad: Dieter Anhuf
Institution abroad: University of Passau, Germany
Home Institution: Instituto de Biociências (IB). Universidade de São Paulo (USP). São Paulo , SP, Brazil

Abstract

According to the Intergovernmental Panel on Climate Change the global surface temperature has continuously risen since 1861. Increasing temperatures combined with changing precipitation patterns result in a more active and more intense hydrological cycle. Combined with the continuously increasing atmospheric CO2 concentration, trees will undoubtedly be influenced. Tree-rings have shown to be very well suited for environmental reconstruction and represent a powerful tool to study ecophysiology of trees. They represent mostly annually resolved and widely distributed environmental archives and are easily sampled. Besides traditional tree-ring width analysis, isotopic ratio of stable elements, such as U13C and H180, have been established as valuable proxies for ecophysiological studies. The objective of this study is to quantify the natural long- term reactions of trees to a rising CO2 concentration and climate change patterns with regard to water use efficiency (WUE) and transpiration on a regional scale. The emphasis will be on a tropical transect across South-eastern Brazil. This should pave the way for elucidating the tree development of the past and for predicting tree dynamics in particular tree growth in a climatically changing world. To that aim, two tree species: Cariniana estrellesis and Hymenaea courbaril will be sampled in a transection of three sites in the State of Sao Paulo. Five trees per species will be sampled in each sampling site, always looking for the oldest individuals. Tree-rings will be dated, and a-celluloses will be extracted from each tree-ring to proceed 13C and 18C analysis. Long-term stable isotope patterns will be evaluated in yearly resolved chronologies. Intra-annual information will be accessed with a 12 parts tree-ring sampling. The intra tree-ring samples will be done in only two years of the chronologies constructed. (AU)

Articles published in Pesquisa FAPESP Magazine about the research grant:
Circles of time 

Scientific publications (4)
(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)
LOCOSSELLI, GIULIANO MASELLI; KROTTENTHALER, STEFAN; PITSCH, PHILIPP; ANHUF, DIETER; CECCANTINI, GREGORIO. Impact of temperature on the growth of a Neotropical tree species (Hymenaea courbaril, Fabaceae) at its southern distribution limit. INTERNATIONAL JOURNAL OF BIOMETEOROLOGY, v. 63, n. 12, p. 1683-1692, DEC 2019. Web of Science Citations: 0.
MARIA APARECIDA DE MENEZES BORREGO; BERNARDO LUÍS RODRIGUES DE ANDRADE; GREGÓRIO CARDOSO TÁPIAS CECCANTINI; MILENA DE GODOY VEIGA; FILLIPE ROCHA ESTEVES; PEDRO HENRIQUE BULLA; GABRIEL BUSTANI VALENTE. Trajetória e reconstituição digital de uma canoa do Museu Paulista - USP. An. mus. paul., v. 27, p. -, 2019.
LOCOSSELLI, GIULIANO MASELLI; SCHONGART, JOCHEN; CECCANTINI, GREGORIO. Climate/growth relations and teleconnections for a Hymenaea courbaril (Leguminosae) population inhabiting the dry forest on karst. TREES-STRUCTURE AND FUNCTION, v. 30, n. 4, p. 1127-1136, AUG 2016. Web of Science Citations: 18.
LOCOSSELLI, GIULIANO MASELLI; CARDIM, RICARDO HENRIQUE; CECCANTINI, GREGORIO. Rock outcrops reduce temperature-induced stress for tropical conifer by decoupling regional climate in the semiarid environment. INTERNATIONAL JOURNAL OF BIOMETEOROLOGY, v. 60, n. 5, p. 639-649, MAY 2016. Web of Science Citations: 13.

Please report errors in scientific publications list by writing to: cdi@fapesp.br.