Results 21 to 30 of about 250,155 (310)

Food Webs

open access: yes, 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
openaire   +3 more sources

Ciliates in different types of pools in temperate, tropical, and polar climate zones – implications for climate change

open access: yesJournal of Limnology, 2021
Small water bodies are typically characterized by high diversity of various groups of microorganisms. Moreover, these ecosystems react very quickly to even the slightest climate changes (e.g. a temperature increase or water level fluctuations). Thus far,
Tomasz Mieczan   +1 more
doaj   +1 more source

Cross-Ecosystem Linkages: Transfer of Polyunsaturated Fatty Acids From Streams to Riparian Spiders via Emergent Insects

open access: yesFrontiers in Ecology and Evolution, 2021
Polyunsaturated fatty acids (PUFAs) are essential resources unequally distributed throughout landscapes. Certain PUFAs, such as eicosapentaenoic acid (EPA), are common in aquatic but scarce in terrestrial ecosystems.
Carmen Kowarik   +4 more
doaj   +1 more source

Plant chemistry and food web health [PDF]

open access: yes, 2021
Plants are systemically relevant to our planet not only by constituting a major part of its biomass, but also because they produce a vast diversity of bioactive phytochemicals.
Erb, Matthias   +7 more
core   +1 more source

Comparison Between Trophic Positions in the Barents Sea Estimated From Stable Isotope Data and a Mass Balance Model

open access: yesFrontiers in Marine Science, 2022
The trophic position concept is central in system ecology, and in this study, trophic position (TP) estimates from stable-isotopes and an Ecopath mass-balance food web model for the Barents Sea were compared. Two alternative models for estimating TP from
Torstein Pedersen
doaj   +1 more source

Top‐down effects of filter‐feeding fish and bivalves moderate bottom‐up effects of nutrients on phytoplankton in subtropical shallow lakes: An outdoor mesocosm study

open access: yesEcology and Evolution, 2023
Biomanipulation has been widely used in the ecological restoration of eutrophic lakes for decades. However, biomanipulation is prone to failure if external nutrient loads are not reduced.
You Zhang   +8 more
doaj   +1 more source

Evaluation of the effect of agroclimatic variables on the probability and timing of olive fruit fly attack

open access: yesFrontiers in Plant Science
Agroclimatic variables may affect insect and plant phenology, with unpredictable effects on pest populations and crop losses. Bactrocera oleae Rossi (Diptera: Tephritidae) is a specific pest of Olea europaea plants that can cause annual economic losses ...
Gabriele Rondoni   +11 more
doaj   +1 more source

Early warning of complex climate risk with integrated artificial intelligence

open access: yesNature Communications
As climate change accelerates, human societies face growing exposure to disasters and stress, highlighting the urgent need for effective early warning systems (EWS).
Markus Reichstein   +18 more
doaj   +1 more source

Trophic structure and fishing impacts on an oligotrophic ecosystem in the Western Mediterranean: the Balearic Islands

open access: yesFrontiers in Marine Science, 2023
Within the context of the ecosystem approach to fisheries management, an ecosystem model was developed for the Balearic Islands in the early 2000s, covering from 0 to 800 m of depth.
Paula Sánchez-Zulueta   +10 more
doaj   +1 more source

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