Results 11 to 20 of about 24,863 (250)

Chlorophyll-nutrient relationship changes with lake type, season and small-bodied zooplankton in a set of subtropical shallow lakes

open access: yesEcological Indicators, 2022
Phytoplankton biomass is generally measured as chlorophyll-a concentration (Chla), and is well known to be sensitive to nutrients and large zooplankton. However, whether nutrient was still be a better predictor of Chla when potential affecting variables ...
Bowen Wu   +8 more
doaj   +1 more source

A large marine eosauropterygian reptile with affinities to nothosauroid diapsids from the Early Triassic of British Columbia, Canada [PDF]

open access: yesActa Palaeontologica Polonica, 2019
Sauropterygia, one of the main clades of Mesozoic marine reptiles, diversified shortly after the Permo-Triassic biotic crisis and afterwards remained one of the major components of Early Triassic and later Mesozoic marine ecosystems.
Torsten M. Scheyer   +2 more
doaj   +1 more source

A Hiatus Obscures the Early Evolution of Modern Lineages of Bony Fishes

open access: yesFrontiers in Earth Science, 2021
About half of all vertebrate species today are ray-finned fishes (Actinopterygii), and nearly all of them belong to the Neopterygii (modern ray-fins). The oldest unequivocal neopterygian fossils are known from the Early Triassic.
Carlo Romano
doaj   +1 more source

Camera trap reveals the co‐occurrence patterns of two sympatric muntjac species in southern Anhui Province, China: No spatial segregation

open access: yesEcology and Evolution, 2021
The competitive relationship and coexistence pattern among close related species have long been one of the hot issues in ecological research. Interspecies interactions can exert important influences on the local distribution of rare species.
Shuaitao Deng   +8 more
doaj   +1 more source

Temporal dynamics in biotic and functional recovery following mining

open access: yesJournal of Applied Ecology, 2022
AbstractHuman‐induced disturbance has substantially influenced the structure and function of terrestrial ecosystems globally. However, the extent to which multiple ecosystem functions (multifunctionality) recover following anthropogenic disturbance (ecosystem recovery) remains poorly understood.We report on the first study examining the temporal ...
David J. Eldridge   +14 more
openaire   +2 more sources

Characterization of the Plant‒Soil feedback index in alpine meadow degradation and recovery: A field experiment

open access: yesFrontiers in Environmental Science, 2023
Most plant‒soil feedback studies have been conducted on the mechanism by which soil directly influences plant growth performance and mostly in indoor pot experiments; however, it is unclear how plant‒soil feedback is influenced by plant, soil and ...
She Yandi   +11 more
doaj   +1 more source

Soil fertility and landscape surrounding former arable fields drive the ecological resilience of Mediterranean dry grassland plant communities

open access: yesFrontiers in Ecology and Evolution, 2023
IntroductionSemi-natural dry grasslands are among the species-richest and most diverse habitats in Europe especially in the Mediterranean Basin. They evolved with long-term severe environmental constraints, either biotic (e.g., grazing or mowing) or ...
Renaud Jaunatre   +4 more
doaj   +1 more source

The growth-promoting and lipid-lowering effects of berberine are associated with the regulation of intestinal bacteria and bile acid profiles in yellow catfish (Pelteobagrus fulvidraco)

open access: yesAquaculture Reports, 2023
Berberine has growth-promoting and lipid-lowering effects potentially through the regulation of intestinal microbiota and bile acid profiles. This experiment aimed to investigate the effect of dietary berberine on the intestinal microbiota-bile acid ...
Lei Wang   +7 more
doaj   +1 more source

Head movement compensation in real-time magnetoencephalographic recordings

open access: yesMethodsX, 2014
Neurofeedback- and brain-computer interface (BCI)-based interventions can be implemented using real-time analysis of magnetoencephalographic (MEG) recordings.
Graham Little   +2 more
doaj   +1 more source

Berberine in fish nutrition: Impact on hepatoenteric health, antioxidative and immune status

open access: yesFrontiers in Marine Science, 2022
Berberine, an isoquinoline alkaloid found in some traditional medicinal plants, such as Berberis vulgaris and Coptis Chinensis, has been considered as an effective drug in treating obesity, hypertension, type-2 diabetes, hyperlipidemia, and gout in ...
Lei Wang   +10 more
doaj   +1 more source

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