Results 71 to 80 of about 2,044 (183)

Modelling N₂ fixation related to Trichodesmium sp.: driving processes and impacts on primary production in the tropical Pacific Ocean [PDF]

Biogeosciences, 2018
Dinitrogen fixation is now recognized as one of the major sources of bio-available nitrogen in the ocean. Thus, N2 fixation sustains a significant part of the global primary production by supplying the most common limiting nutrient for phytoplankton ...
C. Dutheil, C. Dutheil, O. Aumont, T. Gorguès, A. Lorrain, S. Bonnet, M. Rodier, C. Dupouy, C. Dupouy, T. Shiozaki, C. Menkes, C. Menkes   +11 more
doaj   +1 more source

Fog, Symbiosis, and Survival: The Ecological Architecture of the Grit Crust From the Atacama Desert Represents a Lichen Holobiome Rather Than a Soil Microbiome

Environmental Microbiology, Volume 28, Issue 6, June 2026.
Multi‐marker metabarcoding (16S rRNA, 18S rRNA, ITS2) of the fog‐dependent grit crust in the Atacama Desert reveals a community structured by lichen symbioses rather than typical soil‐derived microbial assemblages. The green algal photobiont Trebouxia dominates the eukaryotic community, accompanied by lichenized Caliciales and lichen‐associated ...
Patrick Jung, Lina Werner, Rebekah Brand, Laura Briegel‐Williams, Karen Baumann, Guillaume Letendu, Michael Lakatos   +6 more
wiley   +1 more source

Oligotrophy and pelagic marine bacteria

Aquatic Microbial Ecology, 1997
Oligotrophy, or the inability of bacterial cells to propagate at elevated nutrient concentrations, is a controversial phenomenon in microbiology. The exact cause of the unculturability of many indigenous marine bacteria on standard laboratory media has still not been resolved.
Schut, F, Prins, R.A, Gottschal, J.C
openaire   +1 more source

Microbial Controls on Carbon Pump Partitioning in the Subtropical North Atlantic: Stoichiometry and Nutrient Limitation Across a Basin‐Scale Transect

Journal of Geophysical Research: Oceans, Volume 131, Issue 5, May 2026.
Abstract The subtropical North Atlantic is a key region for ocean carbon cycling despite its relatively small spatial extent. Here we present a high‐resolution transect (23°–27°N; ∼2° longitude spacing) across the North Atlantic Subtropical Gyre, integrating physical, chemical, and microbial observations to examine how hydrography and nutrient ...
Lukas Marx, Edward Mawji, Thierry Cariou, B. B. Cael, Michelle Hale, Sarah Reynolds   +5 more
wiley   +1 more source

Recent unprecedented warming and oligotrophy of the eastern Mediterranean Sea within the last millennium [PDF]

Geophysical Research Letters, 2014
AbstractThe Mediterranean region is a climatic transitional zone between the subtropical/monsoon regime and the temperate westerlies and is subject to forces acting upon the global climate system. Much knowledge about its climate over the last millennium is derived from terrestrial records, whereas changes in sea surface temperatures (SSTs) and in the ...
Guy Sisma‐Ventura, Ruth Yam, Aldo Shemesh   +2 more
openaire   +1 more source

Is Oligotrophy an Equalizing Factor Driving Microplankton Species Functional Diversity Within Agulhas Rings?

Frontiers in Marine Science, 2020
From the southwestern termination of the Agulhas current, anticyclonic eddies are emitted and drift across the South Atlantic Ocean. This study is based on a FORSA (Following Ocean Rings in the South Atlantic) oceanographic cruise, from Cape Town (South ...
Caio Cesar-Ribeiro, Caio Cesar-Ribeiro, Fernanda R. Piedras, Fernanda R. Piedras, Leticia C. da Cunha, Leticia C. da Cunha, Leticia C. da Cunha, Leticia C. da Cunha, Domênica T. de Lima, Domênica T. de Lima, Luana Q. Pinho, Gleyci A. O. Moser, Gleyci A. O. Moser   +12 more
doaj   +1 more source

Necromass chemistry drives the functional diversity of the necrobiome, resulting in microbe–organic matter feedbacks

Functional Ecology, Volume 40, Issue 5, Page 1339-1351, May 2026.
Read the free Plain Language Summary for this article on the Journal blog. Abstract In temperate European forests, soil fungal communities, dominated by saprotrophic and ectomycorrhizal (ECM) species, represent almost 25% of soil organic carbon (C) in the soil.
Elsa Hilaire, Laure Fauchery, Michaël Danger, Aurélie Cébron, Bernhard Zeller, Marc Buée   +5 more
wiley   +1 more source

New determination of Pediastrum orientale in polar lake sediments and its palaeoecological implications – Reindeer Lake, Bellsund, Spitsbergen

Acta Palaeobotanica
The main component of microfossils in the bottom sediments of Reindeer Lake from Spitsbergen, documenting the almost 8,000-year history of this water body, are algae representing colonies of a very rare species Pediastrum orientale (Skuja) Jankovská et
Irena Agnieszka Pidek, Radosław Dobrowolski, Piotr Zagórski, Jan Rodzik, Edyta Łokas, Irka Hajdas   +5 more
doaj   +1 more source

From Purpose to Persistence: How Intentional Introductions by Humans Influence Ecological Niches of Non‐Native Plants

Global Ecology and Biogeography, Volume 35, Issue 5, May 2026.
ABSTRACT Aim The intentional or unintentional transport of non‐native plants is key to overcoming geographic barriers. However, it remains unclear whether such introduction pathways associate with overcoming environmental barriers, which is key for successful invasion.
Marc Riera, Milan Chytrý, Yolanda Melero, Llorenç Sáez, Fabio Attorre, Irena Axmanová, Idoia Biurrun, Gianmaria Bonari, Fabrizio Buldrini, Pauline Delbosc, Jürgen Dengler, Ute Jandt, Florian Jansen, Borja Jiménez‐Alfaro, Remigiusz Pielech, Petr Pyšek, Maria Šibíková, Joan Pino   +17 more
wiley   +1 more source

Phytoplankton diversity in coral reefs of Guanahacabibes National Park, Cuba

Revista de Investigaciones Marinas
Coral reefs are highly complex and biodiverse ecosystems that are fundamental to ecological balance and socioeconomic development. Assessing and monitoring the communities that comprise them is essential to preserving their stability and ensuring their ...
Claudia C. Tabio-García, Magaly E. Sánchez Lorenzo, Dorka Cobián-Rojas, Sandra L. Loza Álvarez   +3 more
doaj   +1 more source