D-Index & Metrics Best Publications
Environmental Sciences
Chile
2023

D-Index & Metrics D-index (Discipline H-index) only includes papers and citation values for an examined discipline in contrast to General H-index which accounts for publications across all disciplines.

Discipline name D-index D-index (Discipline H-index) only includes papers and citation values for an examined discipline in contrast to General H-index which accounts for publications across all disciplines. Citations Publications World Ranking National Ranking
Environmental Sciences D-index 55 Citations 12,210 126 World Ranking 1869 National Ranking 2

Research.com Recognitions

Awards & Achievements

2023 - Research.com Environmental Sciences in Chile Leader Award

2022 - Research.com Environmental Sciences in Chile Leader Award

Overview

What is he best known for?

The fields of study he is best known for:

  • Ecology
  • Oceanography
  • Bacteria

Osvaldo Ulloa focuses on Ecology, Oxygen minimum zone, Oceanography, Upwelling and Nitrogen cycle. His Ecology research is multidisciplinary, relying on both Acidobacteria and Prochlorococcus. His Oxygen minimum zone research includes elements of In situ, Detection limit, Analytical chemistry and Oxygen sensor.

His work deals with themes such as Nutrient cycle, Nutrient and Ecosystem, which intersect with Oceanography. His research integrates issues of Thioploca, Beggiatoa, Thiomargarita, Continental shelf and Mineralogy in his study of Upwelling. His Nitrogen cycle research integrates issues from Sulfur cycle, Biogeochemical cycle, Cycling, Biogeochemistry and Biological pump.

His most cited work include:

  • Processes and patterns of oceanic nutrient limitation (929 citations)
  • Impacts of atmospheric anthropogenic nitrogen on the open ocean. (745 citations)
  • A Cryptic Sulfur Cycle in Oxygen-Minimum–Zone Waters off the Chilean Coast (395 citations)

What are the main themes of his work throughout his whole career to date?

His primary scientific interests are in Oceanography, Ecology, Oxygen minimum zone, Upwelling and Nitrogen cycle. His Oceanography study frequently links to adjacent areas such as Phytoplankton. His Ecology study combines topics in areas such as Prochlorococcus and Metagenomics.

His biological study spans a wide range of topics, including Botany, Denitrification, Denitrifying bacteria, Photic zone and Ammonia monooxygenase. The study incorporates disciplines such as Wind stress, Boundary current, Productivity, Continental shelf and La Niña in addition to Upwelling. Thaumarchaeota is closely connected to Microbial metabolism in his research, which is encompassed under the umbrella topic of Nitrogen cycle.

He most often published in these fields:

  • Oceanography (41.46%)
  • Ecology (33.33%)
  • Oxygen minimum zone (22.76%)

What were the highlights of his more recent work (between 2017-2021)?

  • Ecology (33.33%)
  • Anoxic waters (13.82%)
  • Nitrogen cycle (14.63%)

In recent papers he was focusing on the following fields of study:

His main research concerns Ecology, Anoxic waters, Nitrogen cycle, Oceanography and Biogeochemical cycle. His Ecology study incorporates themes from Oxygen deficient and Metagenomics. He has researched Anoxic waters in several fields, including Cyanobacteria, Phycobilisome, Prochlorococcus and Phylogenetic tree.

His work investigates the relationship between Nitrogen cycle and topics such as Microbial metabolism that intersect with problems in Thaumarchaeota, Phylogenetics, Biogeochemistry, Proteobacteria and Archaeal Viruses. His studies in Oceanography integrate themes in fields like Amphipoda and Fauna. Osvaldo Ulloa combines subjects such as Argo, Carbon cycle, Remote sensing and Redox gradient with his study of Biogeochemical cycle.

Between 2017 and 2021, his most popular works were:

  • Oxygen modulates bacterial community composition in the coastal upwelling waters off central Chile (29 citations)
  • Single cell genomic and transcriptomic evidence for the use of alternative nitrogen substrates by anammox bacteria (20 citations)
  • Redox traits characterize the organization of global microbial communities (13 citations)

In his most recent research, the most cited papers focused on:

  • Ecology
  • Oceanography
  • Bacteria

His primary areas of study are Ecology, Environmental chemistry, Sulfur metabolism, Anoxic waters and Nitrogen cycle. He studies Ecosystem, a branch of Ecology. His Environmental chemistry research is multidisciplinary, incorporating elements of Microorganism, Sulfur cycle, Gammaproteobacteria, Oceanography and Nutrient.

His Sulfur metabolism study combines topics from a wide range of disciplines, such as Phylogenetics, Thaumarchaeota and Biogeochemical cycle. He interconnects Microbial metabolism and Bacteria in the investigation of issues within Anoxic waters. As part of his studies on Nitrogen cycle, Osvaldo Ulloa frequently links adjacent subjects like Biochemistry.

This overview was generated by a machine learning system which analysed the scientist’s body of work. If you have any feedback, you can contact us here.

Best Publications

Processes and patterns of oceanic nutrient limitation

C. M. Moore;M. M. Mills;K. R. Arrigo;I. Berman-Frank.
Nature Geoscience (2013)

1450 Citations

Impacts of atmospheric anthropogenic nitrogen on the open ocean.

R. A. Duce;J. LaRoche;K. Altieri;K. R. Arrigo.
Science (2008)

1056 Citations

A Cryptic Sulfur Cycle in Oxygen-Minimum–Zone Waters off the Chilean Coast

Donald Eugene Canfield;F.J. Stewart;Bo Thamdrup;Loreto De Brabandere.
Science (2010)

555 Citations

Concentration and transport of nitrate by the mat-forming sulphur bacterium Thioploca

H. Fossing;V. A. Gallardo;B. B. Jørgensen;M. Hüttel.
Nature (1995)

499 Citations

Primary production and community respiration in the Humboldt Current System off Chile and associated oceanic areas

Giovanni Daneri;Victor Dellarossa;Renato Quiñones;Barbara Jacob.
Marine Ecology Progress Series (2000)

432 Citations

Global phylogeography of marine Synechococcus and Prochlorococcus reveals a distinct partitioning of lineages among oceanic biomes.

Katrin Zwirglmaier;Ludwig Jardillier;Martin Ostrowski;Sophie Mazard.
Environmental Microbiology (2007)

427 Citations

Natural and human-induced hypoxia and consequences for coastal areas: synthesis and future development

J. Zhang;D. Gilbert;A. Gooday;L. Levin.
Biogeosciences (2010)

404 Citations

Microbial oceanography of anoxic oxygen minimum zones

Osvaldo Ulloa;Donald E. Canfield;Edward F. DeLong;Ricardo M. Letelier.
Proceedings of the National Academy of Sciences of the United States of America (2012)

392 Citations

Microbial metatranscriptomics in a permanent marine oxygen minimum zone

Frank J. Stewart;Osvaldo Ulloa;Edward F. DeLong.
Environmental Microbiology (2012)

364 Citations

Anaerobic ammonium oxidation in the oxygen-deficient waters off northern Chile

Bo Thamdrup;Tage Dalsgaard;Marlene Mark Jensen;Osvaldo Ulloa.
Limnology and Oceanography (2006)

332 Citations

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