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Structuring processes of microbial communities and ecological networks in latitudinal gradients of the global ocean

Grant number: 17/26786-1
Support type:Scholarships in Brazil - Doctorate
Effective date (Start): May 01, 2018
Effective date (End): February 28, 2021
Field of knowledge:Physical Sciences and Mathematics - Oceanography
Principal Investigator:Hugo Miguel Preto de Morais Sarmento
Grantee:Pedro Ciarlini Junger Soares
Home Institution: Centro de Ciências Biológicas e da Saúde (CCBS). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil
Associated research grant:14/14139-3 - Microbial processes and biodiversity in aquatic ecosystems, AP.JP

Abstract

Biogeographical patterns have been widely studied for over two centuries. However, investigating such patterns as well as testing ecological theories for microbial communities was methodologically impossible until very recently. These questions only became accountable when modern molecular and bioinformatic tools were developed, thereby allowing the characterization of microbiomes directly from environmental samples. Recent studies have shown that the marine microbiome present latitudinal patterns of distribution, with the highest species richness found in intermediate latitudes as well as different species composition between the North and South poles. Nevertheless, simply investigating the microbial species richness distribution provides a limited understanding of the mechanisms underlying the biogeographical patterns observed in the oceans. In this PhD project, we will apply a community-ecology framework to investigating the main ecological processes driving marine microbial communities and their ecological networks in different latitudinal regions (Polar, Westerlies e Trades) of the global ocean. To accomplish this goal, a dataset consisted of spatial (Tara Oceans Project) and time-series data (marine microbial observatories) will be used. Firstly, we will determine the relative importance of deterministic and stochastic factors structuring microbial communities for each latitudinal region. Next, we will conduct the beta diversity partitioning of these communities and construct networks of their ecological interactions. Finally, we will investigate the effect of oceanic islands on the structuring of prokaryotic and eukaryotic communities and their interactions in the oceans. (AU)

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)
JUNGER, PEDRO CIARLINI; CATOMBE DANTAS, FABIOLA DA COSTA; GUIMARAES NOBRE, REGINA LUCIA; KOSTEN, SARIAN; VENTICINQUE, EDUARDO MARTINS; ARAUJO, FERNANDO DE CARVALHO; SARMENTO, HUGO; ANGELINI, RONALDO; TERRA, IAGE; GAUDENCIO, ANDRIEVISK; THEY, NG HAIG; BECKER, VANESSA; CABRAL, CAMILA RODRIGUES; QUESADO, LETICIA; CARNEIRO, LUCIANA SILVA; CALIMAN, ADRIANO; AMADO, ANDRE MEGALI. Effects of seasonality, trophic state and landscape properties on CO2 saturation in low-latitude lakes and reservoirs. Science of The Total Environment, v. 664, p. 283-295, MAY 10 2019. Web of Science Citations: 0.

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