Results 31 to 40 of about 187,503 (276)
Frontiers in Ecology and Evolution, 2022 Biological invasions are a widespread problem worldwide, as invasive non-indigenous species (NIS) may affect native populations through direct (e. g., predation) or indirect (e.g., competition) trophic interactions, leading to changes in the food web ...
Cristina Andolina +11 more
doaj +1 more source
VIABILITY MODEL OF TROPHIC INTERACTIONS IN MARINE ECOSYSTEMS
Natural Resource Modeling, 2004 ABSTRACT. An attempt to use viability models for studying marine ecosystems is proposed as a possible alternative to classical ecosystem modeling. Viability models do not consider optimal solutions but instead define all possible evolutions of a dynamical system under given constraints.
Mullon, Christian +2 more
openaire +1 more source
Rethinking the lake trophic state index [PDF]
PeerJ, 2019 Lake trophic state classifications provide information about the condition of lentic ecosystems and are indicative of both ecosystem services (e.g., clean water, recreational opportunities, and aesthetics) and disservices (e.g., cyanobacteria blooms ...
Farnaz Nojavan A. +3 more
doaj +2 more sources
Provenance does matter: links between winter trophic segregation and the migratory origins of European robins [PDF]
, 2016 Amongst migratory species, it is common to find individuals from different populations or geographical origins sharing staging or wintering areas.
Bearhop, Stuart, +7 more
core +1 more source
Understanding patterns and processes in models of trophic cascades [PDF]
Ecology Letters, 2013 AbstractClimate fluctuations and human exploitation are causing global changes in nutrient enrichment of terrestrial and aquatic ecosystems and declining abundances of apex predators. The resulting trophic cascades have had profound effects on food webs, leading to significant economic and societal consequences.
Heath, Michael R +3 more
openaire +4 more sources
Trophic cascade modelling in bathyal ecosystems
, 2023 Different aspects of the bathyal ecosystem have been treated with the final aim to investigate trophic cascades driven by fishery (top-down control), a phenomenon that in bathyal systems has never been studied. This was exemplified by the in-depth study of the exploited soft-bottom continental slope off Catalonia (NW Mediterranean), where the fishery ...
openaire +4 more sources
Linking Carbon-Nitrogen-Phosphorus Cycle and Foodweb Models of an Estuarine Lagoon Ecosystem
Computational Science and Techniques, 2015 In this study, an NPZD model and a trophic network model that contains organism groups on the higher trophic levels were developed and linked using the “bottom-up control” approach.
Ali Ertürk +3 more
doaj +1 more source
Integrating functional diversity, food web processes, and biogeochemical carbon fluxes into a conceptual approach for modeling the upper ocean in a high-CO2 world [PDF]
, 2005 Marine food webs influence climate by channeling carbon below the permanent pycnocline, where it can be sequestered. Because most of the organic matter exported from the euphotic zone is remineralized within the "upper ocean" (i.e., the water column ...
Legendre, Louis, Rivkin, Richard B.
core +1 more source
A general approach to the modelling of trophic chains [PDF]
Ecological Modelling, 2000 Based on the law of mass action (and its microscopic foundation) and mass conservation, we present here a method to derive consistent dynamic models for the time evolution of systems with an arbitrary number of species. Equations are derived through a mechanistic description, ensuring that all parameters have ecological meaning.
Dilao, Rui, Domingos, Tiago
openaire +2 more sources
Delineating reef fish trophic guilds with global gut content data synthesis and phylogeny.
PLoS Biology, 2020 Understanding species' roles in food webs requires an accurate assessment of their trophic niche. However, it is challenging to delineate potential trophic interactions across an ecosystem, and a paucity of empirical information often leads to ...
Valeriano Parravicini +11 more
doaj +1 more source