Ecological and genetics effects of seed size variation in a defaunated landscape

• Grant number: 14/01029-5
• Support type: Scholarships in Brazil - Doctorate
• Effective date (Start): August 01, 2014
• Effective date (End): January 31, 2018
• Field of knowledge: Biological Sciences - Ecology
• Principal Investigator: Mauro Galetti Rodrigues
• Grantee: Carolina da Silva Carvalho
• Home Institution: Instituto de Biociências (IB). Universidade Estadual Paulista (UNESP). Campus de Rio Claro. Rio Claro , SP, Brazil
• Associated scholarship(s): 16/22843-8 - Determinants of seed and gene dispersal of a tropical palm across defaunated and fragmentated landscapes, BE.EP.DR

Abstract

Angiosperms have a great intra- and interespecific variation in seed size. It seems to influence ecological and evolutionary dynamic of species, once the seed size may be related to dispersal capacity and potential of seedling recruitment. Studies showed that fragmentation and defaunation process can lead to seed size reduction, however, few it is known about the adaptive and ecological consequences of this reduction. The aim of project is understand which are the ecological and genetics effects of seed size variation of a key palm in Atlantic forest, heart of palm Euterpe edulis. Specifically, we will investigate, using meta-analysis approach based on data set compiled from, if population connectivity of different species of angiosperms can be explained by seed size and seed dispersal syndrome in tropical ecosystems; if the loss of large frugivorous affects seed size variation and, concomitantly, we will verify if there are a relation among the reduction of seed size variation, genetic diversity and germination potential; we will evaluate the role of seed size phenotypic and genetic variation on seed dispersal and seedling recruitment limitation; and we will verify the potential for restoration of phenotypic variability. To achieve our goals, we will use distinct way of obtaining and analyzing data, as compiling data from literature, in situ experiment, greenhouse experiment and genetic analysis. The results will be used to test hyphothesis about the genetics and ecological consequences of reduction in seed size variation due to anthropic process.

Scientific publications

(9)

(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)

MARÍLIA SOUZA LUCAS; CAROLINA DA SILVA CARVALHO; GIOVANE BÖERNER HYPOLITO; MARINA CORRÊA CÔRTES. Optimized protocol to isolate high quality genomic DNA from different tissues of a palm species. Hoehnea, v. 46, n. 2, p. -, 2019.

MORAES, ANDREIA MAGRO; RUIZ-MIRANDA, CARLOS R.; RIBEIRO, MILTON CEZAR; GRATIVOL, ADRIANA D.; CARVALHO, CAROLINA DA S.; DIETZ, JAMES M.; KIERULFF, MARIA CECILIA M.; FREITAS, LUCAS A.; GALETTI, JR., PEDRO M. Temporal genetic dynamics of reintroduced and translocated populations of the endangered golden lion tamarin (Leontopithecus rosalia). CONSERVATION GENETICS, v. 18, n. 5, p. 995-1009, OCT 2017. Web of Science Citations: 10.

GONZALEZ-VARO, JUAN P.; CARVALHO, CAROLINA S.; ARROYO, JUAN M.; JORDANO, PEDRO. Unravelling seed dispersal through fragmented landscapes: Frugivore species operate unevenly as mobile links. Molecular Ecology, v. 26, n. 16, p. 4309-4321, AUG 2017. Web of Science Citations: 21.

BECA, GABRIELLE; VANCINE, MAURICIO H.; CARVALHO, CAROLINA S.; PEDROSA, FELIPE; ALVES, RAFAEL SOUZA C.; BUSCARIOL, DAIANE; PERES, CARLOS A.; RIBEIRO, MILTON CEZAR; GALETTI, MAURO. High mammal species turnover in forest patches immersed in biofuel plantations. Biological Conservation, v. 210, n. A, p. 352-359, JUN 2017. Web of Science Citations: 17.

CARVALHO, CAROLINA DA SILVA; BALLESTEROS-MEJIA, LILIANA; RIBEIRO, MILTON CEZAR; CORTES, MARINA CORREA; SANTOS, ALESANDRO SOUZA; COLLEVATTI, ROSANE GARCIA. Climatic stability and contemporary human impacts affect the genetic diversity and conservation status of a tropical palm in the Atlantic Forest of Brazil. CONSERVATION GENETICS, v. 18, n. 2, p. 467-478, APR 2017. Web of Science Citations: 7.

THABATA CARVALHO; GIULIANA GARCIA; CAROLINA SILVA CARVALHO; CLARISSE PALMA-SILVA; LAURENCE CULOT. Development of microsatellite loci for Cryptocarya mandioccana Meisner (Lauraceae) and their genotyping success in different tissues. Hoehnea, v. 44, n. 4, p. -, Dez. 2017.

CARVALHO, CAROLINA S.; GALETTI, MAURO; COLEVATTI, ROSANE G.; JORDANO, PEDRO. Defaunation leads to microevolutionary changes in a tropical palm. SCIENTIFIC REPORTS, v. 6, AUG 18 2016. Web of Science Citations: 20.

GABRIELA SANTOS TIBÚRCIO; CAROLINA DA SILVA CARVALHO; FABIO COP FERREIRA; ROBERTO GOITEIN; MILTON CEZAR RIBEIRO. Landscape effects on the occurrence of ichthyofauna in first-order streams of southeastern Brazil. Acta Limnol. Bras., v. 28, p. -, 2016.

CARVALHO, C. DA SILVA; RIBEIRO, M. C.; CORTES, M. C.; GALETTI, M.; COLLEVATTI, R. G. Contemporary and historic factors influence differently genetic differentiation and diversity in a tropical palm. HEREDITY, v. 115, n. 3, p. 216-224, SEP 2015. Web of Science Citations: 23.