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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 Opportunities:Scholarships in Brazil - Doctorate
Effective date (Start): May 01, 2018
Effective date (End): April 04, 2022
Field of knowledge:Physical Sciences and Mathematics - Oceanography - Biological Oceanography
Principal Investigator:Hugo Miguel Preto de Morais Sarmento
Grantee:Pedro Ciarlini Junger Soares
Host 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
Associated scholarship(s):20/02517-4 - Niche-partitioning of ubiquitous, abundant and previously neglected marine bacteria: a case study of Rhodospirillales, BE.EP.DR

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)

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Scientific publications (7)
(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)
MAIARA MENEZES; PEDRO C. JUNGER; VINICIUS S. KAVAGUTTI; BRUNO WANDERLEY; ANDERSON DE SOUZA CABRAL; RODOLFO PARANHOS; FERNANDO UNREIN; ANDRÉ M. AMADO; HUGO SARMENTO. Temporal patterns of picoplankton abundance and metabolism on the western coast of the equatorial Atlantic Ocean. Ocean and Coastal Research, v. 71, . (16/50494-8, 14/14139-3, 17/26786-1)
LOGARES, RAMIRO; DEUTSCHMANN, INA M.; JUNGER, PEDRO C.; GINER, CATERINA R.; KRABBEROD, ANDERS K.; SCHMIDT, THOMAS S. B.; RUBINAT-RIPOLL, LAURA; MESTRE, MIREIA; SALAZAR, GUILLEM; RUIZ-GONZALEZ, CLARA; et al. Disentangling the mechanisms shaping the surface ocean microbiota. MICROBIOME, v. 8, n. 1, . (17/26786-1)
PEDRO CIARLINI JUNGER; RAFAEL MARQUES ALMEIDA; RAQUEL MENDONÇA; VINICIUS FORTES FARJALLA; ROSSANA CORREA NETTO DE MELO; FÁBIO ROLAND; NATHAN BARROS. Nem todos os vírus na natureza são inimigos humanos: uma perspectiva sobre a ecologia dos vírus aquáticos no Brasil. Acta Limnol. Bras., v. 32, . (17/26786-1)
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; et al. 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, . (17/26786-1)
MENEZES, MAIARA; JUNGER, PEDRO C.; KAVAGUTTI, VINICIUS S.; WANDERLEY, BRUNO; CABRAL, ANDERSON DE SOUZA; PARANHOS, RODOLFO; UNREIN, FERNANDO; AMADO, ANDRE M.; SARMENTO, HUGO. Temporal patterns of picoplankton abundance and metabolism on the western coast of the equatorial Atlantic Ocean. Ocean and Coastal Research, v. 7, p. 20-pg., . (17/26786-1, 16/50494-8, 14/14139-3)
GAZULLA, CARLOTA R.; AULADELL, ADRIA; RUIZ-GONZALEZ, CLARA; JUNGER, PEDRO C.; ROYO-LLONCH, MARTA; DUARTE, CARLOS M.; GASOL, JOSEP M.; SANCHEZ, OLGA; FERRERA, ISABEL. Global diversity and distribution of aerobic anoxygenic phototrophs in the tropical and subtropical oceans. ENVIRONMENTAL MICROBIOLOGY, v. 24, n. 5, p. 17-pg., . (20/02517-4, 17/26786-1)
CHAFFRON, SAMUEL; DELAGE, ERWAN; BUDINICH, MARKO; VINTACHE, DAMIEN; HENRY, NICOLAS; NEF, CHARLOTTE; ARDYNA, MATHIEU; ZAYED, AHMED A.; JUNGER, PEDRO C.; GALAND, PIERRE E.; et al. Environmental vulnerability of the global ocean epipelagic plankton community interactome. SCIENCE ADVANCES, v. 7, n. 35, . (17/26786-1, 14/14139-3)

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