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Phytogeographical meta-analysis of the caatinga biome

Grant number: 09/14266-7
Support type:Scholarships in Brazil - Doctorate
Effective date (Start): March 01, 2010
Effective date (End): August 31, 2013
Field of knowledge:Biological Sciences - Botany - Phytogeography
Principal researcher:Fernando Roberto Martins
Grantee:Marcelo Freire Moro
Home Institution: Instituto de Biologia (IB). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
Associated scholarship(s):11/22498-5 - Phytogeographical meta-analysis of the caatinga biome, BE.EP.DR


The caatingas are a complex of phytophysiognomies characterized by short, deciduous trees and shrubs in the Brazilian semi-arid region. For long time the caatingas have been considered as having little endemism and diversity in a flora subordinated to the Atlantic forest and/or Argentine Chaco. Although a synthesis about their flora is still missing, recent investigations have shown that the caatingas have a considerable richness in species and endemism even on genus level. Also, the caatingas seem to have two great nuclei of floristic diversity: one associated with cristalin terrains, the other with sedimentar terrains. Studies have suggested that the critalin nucleus is associated with the flora of the Seasonally Dry Tropical Forest (SDTF), which occupied large extension of the South American continent during the Pleistocene. Nowadays the SDTF occurs in disjunctions, one of them being the caatingas on cristalin terrains. On the other hand the flora of the caatingas on sedimentar terrains has been postulated to originate from the South American xeric flora. Our goal is to investigate whether the caatinga flora would be organized in distinct floristic nuclei or would follow gradients presided by environmental variables, such as climate, soil, reliev etc. We will build a databank from the available literature, including theses and monographies and apply multivariate analysis. If the species ordinate according to distinct floristic groups, we will investigate the similarity of the floras in cristalin and sedimentary terrains in order to know their affinities to the SDTF or xeric flora. If the caatinga flora ordinate according to gradients, we will apply other multivariate analyses in order to know the environmental variables that are associated with the species distribution. We intend to produce a large databank encompassing all studies so far done in the caatingas, which can support the understanding of biogeographic variables associated with species distribution. Also, we will have a thorough floristic list, which can allow us to assess how rich the caatinga woody flora is and how many the endemisms are.

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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)
DE OLIVEIRA, LUCIANA DOS SANTOS D.; MORO, MARCELO FREIRE; NIC LUGHADHA, EIMEAR M.; MARTINS, FERNANDO ROBERTO; DE MELO, ANDRE LAURENIO; ESSER, HANS-JOACHIM; SALES, MARGARETH F.. Hidden in the dry woods: Mapping the collection history and distribution of Gymnanthes boticario, a well-collected but very recently described species restricted to the dry vegetation of South America. PHYTOTAXA, v. 97, n. 1, p. 1-16, . (11/22498-5, 09/14266-7)
MORO, MARCELO FREIRE; LUGHADHA, EIMEAR NIC; FILER, DENIS L.; DE ARAUJO, FRANCISCA SOARES; MARTINS, FERNANDO ROBERTO. A catalogue of the vascular plants of the Caatinga Phytogeographical Domain: a synthesis of floristic and phytosociological surveys. PHYTOTAXA, v. 160, n. 1, p. 3+, . (09/14266-7, 11/22498-5)
MORO, MARCELO FREIRE; LUGHADHA, EIMEAR NIC; DE ARAUJO, FRANCISCA SOARES; MARTINS, FERNANDO ROBERTO. A Phytogeographical Metaanalysis of the Semiarid Caatinga Domain in Brazil. BOTANICAL REVIEW, v. 82, n. 2, p. 91-148, . (13/15280-9, 09/14266-7, 11/22498-5)
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
MORO, Marcelo Freire. Floristic and biogeographical synthesis for the caatinga phytogeographical domain. 2013. Doctoral Thesis - Universidade Estadual de Campinas (UNICAMP). Instituto de Biologia Campinas, SP.

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