Results 11 to 20 of about 4,256,851 (341)

Food Webs

open access: yesFundamentals of Tropical Freshwater Wetlands, 2022
Ciliates are important elements of the trophic networks of aquatic and terrestrial environments, they can be primary producers (myxotrophs), consumers of bacteria, algae, flagellates, even other ciliates and can serve as food for metazoans, for all the above they are the link between different levels of food webs.
Laura, Mondragón-Camarillo,   +1 more
semanticscholar   +6 more sources

Essential Biomolecules in Food Webs

open access: yesFrontiers in Ecology and Evolution, 2019
We here review the ecological role of essential nutritional biomolecules [fatty acids (FA), amino acids (AA), sterols, vitamins] in aquatic and terrestrial food webs, encompassing the forces behind their environmental distribution.
Liliane Ruess   +1 more
doaj   +2 more sources

Collapse of terrestrial mammal food webs since the Late Pleistocene

open access: yesScience, 2022
Food webs influence ecosystem diversity and functioning. Contemporary defaunation has reduced food web complexity, but simplification caused by past defaunation is difficult to reconstruct given the sparse paleorecord of predator-prey interactions.
Evan C. Fricke   +8 more
semanticscholar   +1 more source

Heavy metals contamination and associated health risks in food webs—a review focuses on food safety and environmental sustainability in Bangladesh

open access: yesEnvironmental science and pollution research international, 2021
Heavy metals occur naturally in very small amounts in living organisms, but exposure to their higher concentrations is hazardous. Heavy metals at hazardous levels are commonly found in foodstuffs of Bangladesh, mainly due to the lack of safety guidelines
A. Sarker   +7 more
semanticscholar   +1 more source

Multifunctionality of belowground food webs: resource, size and spatial energy channels

open access: yesbioRxiv, 2021
The belowground compartment of terrestrial ecosystems drives nutrient cycling, the decomposition and stabilisation of organic matter, and supports aboveground life.
A. Potapov
semanticscholar   +1 more source

Size compartmentalization of energy channeling in terrestrial belowground food webs.

open access: yesEcology, 2021
Size-structured food webs form integrated trophic systems where energy is being channelled from small to large consumers. Empirical evidence suggests that size structure prevails in aquatic ecosystems while in terrestrial food webs trophic level is ...
A. Potapov   +14 more
semanticscholar   +1 more source

Species invasion progressively disrupts the trophic structure of native food webs

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2021
Significance Invasive species are a leading cause of biodiversity loss, yet the mechanisms by which invaders progressively disrupt ecosystems and native species remain unclear.
Charles A. Wainright   +4 more
semanticscholar   +1 more source

Persistence increases with diversity and connectance in trophic metacommunities. [PDF]

open access: yesPLoS ONE, 2011
We are interested in understanding if metacommunity dynamics contribute to the persistence of complex spatial food webs subject to colonization-extinction dynamics.
Dominique Gravel   +3 more
doaj   +1 more source

Tracking Fatty Acids From Phytoplankton to Jellyfish Polyps Under Different Stress Regimes: A Three Trophic Levels Experiment

open access: yesFrontiers in Ecology and Evolution, 2018
The impacts of biochemicals driving food web processes are under investigation for just the last few decades. In addition, as jellyfish are drawing increasing attentions because of their mass developments and of their potential capacity of driving food ...
Xupeng Chi   +3 more
doaj   +1 more source

Manipulation of Non-random Species Loss in Natural Phytoplankton: Qualitative and Quantitative Evaluation of Different Approaches

open access: yesFrontiers in Marine Science, 2017
Ecological research in recent decades revealed that species loss has a predominantly negative effect on ecosystem functioning and stability. Most of these studies were based on random species loss scenarios, but extinctions in nature are not random ...
Friederike G. Engel   +3 more
doaj   +1 more source

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