Results 81 to 90 of about 2,044 (183)

From Flames to the Ocean: Biomass Burning Aerosols Are Associated With Changes in Prokaryotic Communities in the Mediterranean Sea

open access: yesEnvironmental Microbiology, Volume 28, Issue 4, April 2026.
The addition of wildfire fine ash particles (particle size < 20 μm) in Mediterranean summer seawater can increase prokaryotic growth and alter community composition over time, likely through the release of both inorganic and organic substrates by ash particles and by inducing changes in the composition of phytoplankton populations.
Nathan Nault   +13 more
wiley   +1 more source

Scaled biotic disruption during early Eocene global warming events [PDF]

open access: yes, 2012
Late Paleocene and early Eocene hyperthermals are transient warming events associated with massive perturbations of the global carbon cycle, and are considered partial analogues for current anthropogenic climate change.
Murphy, B.H.   +33 more
core   +3 more sources

Exploring Multifunctional Microbial Genes From the Rhizosphere of Allium ampeloprasum Under Different Fertilization Systems

open access: yesEnvironmental DNA, Volume 8, Issue 2, March/April 2026.
This study uncovers key multifunctional genes in the rhizosphere of Allium ampeloprasum under varying fertilization systems. This highlights their roles in nutrient cycling, plant growth promotion, and soil health, thereby offering insight for sustainable agricultural sustainability.
Oluwaseun Emmanuel Shittu   +2 more
wiley   +1 more source

The Madagascar Bloom – a serendipitous study [PDF]

open access: yes, 2013
The late austral summer (February-April) phytoplankton bloom that occurs east of Madagascar exhibits significant interannual variability and at its largest extent covers ~1% of the world’s ocean surface area.
Quartly, GD   +3 more
core   +1 more source

Is diatom richness responding to catchment glaciation? A case study from Cana+9dian headwater streams

open access: yesJournal of Limnology, 2012
Due to global change affecting glaciers worldwide, glacial streams are seen as threatened environments deserving specific scientific interest. Glacial streams from the Coast Range and Rocky Mountains in British Columbia and at the border to Alberta were ...
Eugen Rott, Doris Gesierich
doaj   +1 more source

Ribosomal RNA operon copy number: A trait‐informed framework to close the microbial cultivation gap

open access: yesiMetaOmics, Volume 3, Issue 1, March 2026.
The vast majority of microbes remain uncultured, constraining functional validation and limiting microbiome‐based applications. We show that ribosomal RNA operon (rrn) copy number—a stable, phylogenetically conserved genomic trait—is strongly correlated with cultivation outcomes across ecosystems.
Yuxiao Huang   +8 more
wiley   +1 more source

BATHTUB model results for current steady state water quality conditions in Cultus Lake (grey bars), the estimate of water quality conditions prior to anthropogenic disturbance of the watershed and airshed (white bars), predicted water quality with current nutrient sources mitigated (grey bars with hash marks), and water quality predictions for two future development scenarios without nutrient mitigation (black bars) and with mitigation (black bars with hash marks).

open access: yes, 2019
TP (Panel A), TN (Panel B), and chl-a (Panel C) are steady-state model estimates of epilimnetic growing season averages. Dotted reference lines in Panel A indicate the Canadian Council of Ministers of Environment thresholds [45] for TP-inferred aquatic ...
Herb E. Herunter (7037102)   +4 more
core   +1 more source

Oligotrophic patterns in southern Chilean lakes: the relevance of nutrients and mixing depth Patrones oligotróficos en lagos del sur de Chile: relevancia de los nutrientes y de la profundidad de mezcla

open access: yesRevista Chilena de Historia Natural, 2002
Southern Chilean monomictic, temperate lakes are generally oligotrophic with high water transparency, low productivity and some apparent resistance to disturbances such as phosphorus additions.
DORIS SOTO
doaj  

The Impact of Host Rock Geochemistry on Bacterial Community Structure in Oligotrophic Cave Environments. [PDF]

open access: yesInternational Journal of Speleology, 2007
Despite extremely starved conditions, caves contain surprisingly diverse microbial communities. Our research is geared toward understanding what ecosystems drivers are responsible for this high diversity. To asses the effect of rock fabric and mineralogy,
Hazel A. Barton   +5 more
doaj  

Substrate Characterization of Retrogressive Oligotrophy in Yellowstone Lake, Yellowstone National Park

open access: yesThe UW National Parks Service Research Station Annual Reports, 1983
Our research attempts to characterize the recent historical events in Yellowstone Lake, especially with regard to the hypothesis that the lake has become more oligotrophic.
Jerry Kaster, J. Klump, David Edgington
openaire   +2 more sources

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