Results 31 to 40 of about 1,521 (177)

Drivers of stability in plankton communities: dominance, asynchrony, and averaging effects across temporal, spatial and trophic scales

Oikos, EarlyView.
The origins of ecosystem stability have long intrigued ecologists. Recent theoretical advancements highlight three primary mechanisms driving stability: dominance, asynchrony and averaging. While plant community stability has been extensively studied, our understanding of marine community stability remains limited. Plankton, as key components of marine
Guido Occhipinti, Francesco Dattilo, Eva Álvarez, Cosimo Solidoro, Paolo Lazzari   +4 more
wiley   +1 more source

Organic Carbon Is Ineffective in Enhancing the Growth of Dunaliella

Fermentation, 2022
(1) Background: Mixotrophic growth is commonly associated with higher biomass productivity and lower energy consumption. This paper evaluates the impact of using different carbon sources on growth, protein profile, and nutrient uptake for Dunaliella ...
Gleison de Souza Celente, Tiele Medianeira Rizzetti, Rosana de Cassia de Souza Schneider, Patricia J. Harvey, Yixing Sui   +4 more
doaj   +1 more source

Autotrophic and Heterotrophic Metabolism of Hydrogenomonas: Regulation of Autotrophic Growth by Organic Substrates [PDF]

Journal of Bacteriology, 1970
The effects of a number of organic substrates on the autotrophic metabolism of Hydrogenomonas eutropha were examined. Dual substrate (mixotrophic) cultivation in the presence of hydrogen plus either fructose or alanine allowed autotrophic growth to begin immediately after the exhaustion of the organic substrate.
P E, Stukus, B T, DeCicco
openaire   +2 more sources

No way back: decadal lack of functional recovery of a coralligenous community in a warming Mediterranean

Oikos, EarlyView.
Anthropogenic disturbances are degrading nature at a rate that exceeds its capacity to recover. While considerable research has focused on understanding ecosystem impacts, recovery processes remain comparatively overlooked, particularly in marine ecosystems, where long‐term data on how highly complex systems respond to disturbances are scarce.
Yanis Zentner, Joaquim Garrabou, Pol Capdevila, Natalia Ruiz‐Valero, Daniel Gómez‐Gras, Núria Teixidó, Cristina Linares   +6 more
wiley   +1 more source

Dynamic response of communities and ecosystem functions to ecosystem engineering and multiple stressors in a marine mussel bed

Oikos, EarlyView.
Ecosystem engineers are crucial to the development of coastal ecosystem communities and functions. However, a better understanding of how environmental stressors affect ecosystem engineering and thereby influence communities and ecosystem dynamics is needed. We conducted an in situ experiment in a blue mussel Mytilus spp.
Félix Lauzon, Charlotte Carrier‐Belleau, Jérémie Boucher‐Fontaine, Philippe Archambault, Mathieu Cusson, Frédéric Guichard   +5 more
wiley   +1 more source

Rising temperature non‐additively alters how different dimensions of biodiversity affect ecosystem‐scale processes

Journal of Animal Ecology, EarlyView.
The authors distil how dimensions of biodiversity drive ecosystem processes with increasing temperature. Specifically, species physiology more greatly affected ecosystem primary production than did foraging behaviour, and physiology mediated non‐additive interactions with temperature.
Sean Pierce Richards, Maximilian H. K. Hesselbarth, Jacob Edward Allgeier   +2 more
wiley   +1 more source

Prevalence and Preferred Niche of Small Eukaryotes with Mixotrophic Potentials in the Global Ocean

Microorganisms
Unicellular eukaryotes that are capable of phago-mixotrophy in the ocean compete for inorganic nutrients and light with autotrophs, and for bacterial prey with heterotrophs.
Kaiyi Dong, Ying Wang, Wenjing Zhang, Qian Li   +3 more
doaj   +1 more source

The Acidophilic Methanotroph Methylacidimicrobium tartarophylax 4AC Grows as Autotroph on H2 Under Microoxic Conditions

Frontiers in Microbiology, 2019
Emissions of the strong greenhouse gas methane (CH4) to the atmosphere are mitigated by methanotrophic microorganisms. Methanotrophs found in extremely acidic geothermal systems belong to the phylum Verrucomicrobia.
Sepehr S. Mohammadi, Rob A. Schmitz, Arjan Pol, Tom Berben, Mike S. M. Jetten, Huub J. M. Op den Camp   +5 more
doaj   +1 more source

Characteristics of an Iron-Reducing, Moderately Acidophilic Actinobacterium Isolated from Pyritic Mine Waste, and Its Potential Role in Mitigating Mineral Dissolution in Mineral Tailings Deposits

Microorganisms, 2020
Reactive pyritic mine tailings can be populated by chemolithotrophic prokaryotes that enhance the solubilities of many metals, though iron-reducing heterotrophic microorganisms can inhibit the environmental risk posed by tailings by promoting processes ...
Ivan Nancucheo, D. Barrie Johnson
doaj   +1 more source

First Insights on Photoreceptor Organ Ultrastructure in Marine Chaetonotida (Gastrotricha): Species of Xenotrichula and Draculiciteria (Xenotrichulidae)

Acta Zoologica, EarlyView.
ABSTRACT Marine gastrotrichs inhabit sediments with limited available light, yet evidence suggests that photoreceptor organs are present throughout the phylum Gastrotricha. Here, we confirm this proposition with ultrastructural descriptions of photoreceptive organs in two species of Xenotrichulidae (Order Chaetonotida) that lack pigmented ocelli ...
Thiago Quintão Araújo, Rick Hochberg
wiley   +1 more source