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Evolution of extrafloral nectaries: heritability, natural selection and specialization in ant-plant interactions.

Grant number: 12/02110-5
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): May 01, 2012
Effective date (End): October 31, 2015
Field of knowledge:Biological Sciences - Ecology
Principal researcher:Lúcia Garcez Lohmann
Grantee:Anselmo Nogueira
Home Institution: Instituto de Biociências (IB). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Associated scholarship(s):13/04591-3 - Natural selection on extrafloral nectaries and specialization of the ant-plant-herbivore interactions, BE.EP.PD


This project follows from the doctoral thesis of Anselmo Nogueira, conducted between 2007 and 2011 (Ph.D. Fellowship FAPESP 07/54917-1 and Research Grant FAPESP 07/55433-8) in order to consolidate ecological and evolutionary studies of ant-plant-herbivores interactions in the tribe Bignonieae (Bignoniaceae). In this project, we expect to: (1) test whether extrafloral nectaries (EFNs) responsible for ant-plant interactions are inherited in two populations of a model species of Bignonieae (Anemopaegma album), and test the relationship between the quantitative variation of these secretory structures with plant performance (i.e., models of directional and stabilizing selection), (2) test the ecological network structure of ant-plant interactions and the degree of specialization of these interactions in an Amazonian forest community, in conjunction with field studies on the defensive role of EFN-ants against herbivores on different plant species; and (3) assess the status of our knowledge on ant-plant interactions mediated by EFNs through a quantitative/qualitative review of the studies that have directly tested the defensive hypothesis associated with EFNs and ants. All hypotheses will be tested using the phylogenetic framework produced by our research groups and using comparative phylogenetic methods.

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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)
NOGUEIRA, ANSELMO; BACCARO, FABRICIO B.; LEAL, LAURA C.; REY, PEDRO J.; LOHMANN, LUCIA G.; BRONSTEIN, JUDITH L. Variation in the production of plant tissues bearing extrafloral nectaries explains temporal patterns of ant attendance in Amazonian understorey plants. JOURNAL OF ECOLOGY, v. 108, n. 4 JAN 2020. Web of Science Citations: 1.
NOGUEIRA, ANSELMO; REY, PEDRO J.; ALCANTARA, JULIO M.; LOHMANN, LUCIA G. Evidence of between-population differences in natural selection on extra-floral nectaries of the shrub Anemopaegma album (Bignoniaceae). BOTANY, v. 94, n. 3 MAR 2016. Web of Science Citations: 0.
GUIMARAES, E.; NOGUEIRA, A.; MACHADO, S. R. Floral nectar production and nectary structure of a bee-pollinated shrub from Neotropical savanna. Plant Biology, v. 18, n. 1, SI, p. 26-36, JAN 2016. Web of Science Citations: 8.
NOGUEIRA, ANSELMO; REY, PEDRO J.; ALCANTARA, JULIO M.; FEITOSA, RODRIGO M.; LOHMANN, LUCIA G. Geographic Mosaic of Plant Evolution: Extrafloral Nectary Variation Mediated by Ant and Herbivore Assemblages. PLoS One, v. 10, n. 4 APR 17 2015. Web of Science Citations: 9.

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