Results 11 to 20 of about 233,008 (296)
Modeling lake trophic state: a random forest approach [PDF]
Ecosphere, 2016 Productivity of lentic ecosystems is well studied, and it is widely accepted that as nutrient inputs increase, productivity increases and lakes transition from lower trophic state (e.g., oligotrophic) to higher trophic states (e.g., eutrophic).
Jeffrey W. Hollister +2 more
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Modern models of trophic meta-communities [PDF]
Philosophical Transactions of the Royal Society B: Biological Sciences, 2020 Dispersal and foodweb dynamics have long been studied in separate models. However, over the past decades, it has become abundantly clear that there are intricate interactions between local dynamics and spatial patterns. Trophic meta-communities, i.e. meta-foodwebs, are very complex systems that exhibit complex and often counterintuitive dynamics.
Gross, T +8 more
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Trophic dynamics of a simple model ecosystem [PDF]
Proceedings of the Royal Society B: Biological Sciences, 2017 We have constructed a model of community dynamics that is simple enough to enumerate all possible food webs, yet complex enough to represent a wide range of ecological processes. We use the transition matrix to predict the outcome of succession and then investigate how the transition probabilities are governed by resource supply and immigration.
Graham Bell, Étienne Fortier-Dubois
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ATNr : Allometric Trophic Network models in R
Methods in Ecology and Evolution, 2023 Abstract Understanding and predicting how densities of interacting species change over time has been one of the main goals of community ecology, which has become a pressing challenge in the context of global change.
Benoit Gauzens +3 more
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Mathematical Models of Retinitis Pigmentosa: The Trophic Factor Hypothesis [PDF]
Journal of Theoretical Biology, 2021 AbstractRetinitis pigmentosa (RP) is the term used to denote a group of inherited retinal-degenerative conditions that cause progressive sight loss. Individuals with this condition lose their light-sensitive photoreceptor cells, known as rods and cones, over a period of years to decades; degeneration starting in the retinal periphery, and spreading ...
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Rheagogies: Modelling non-trophic effects in food webs [PDF]
Ecological Complexity, 2005 Abstract In a food web, nutrients flow via trophic links. For this reason, trophic interactions have a fundamental character due to the principle of mass conservation. To further comply with this principle, we consider a food web model that includes nutrient cycling.
Arditi, R., Michalski, J., Hirzel, A. H.
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Remote Sensing, 2021 To improve the accuracy of remotely sensed estimates of the trophic state index (TSI) of inland urban water bodies, key environmental factors (water temperature and wind field) were considered during the modelling process. Such environmental factors can
Shijie Zhu, Jingqiao Mao
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Bioaccumulation modelling and sensitivity analysis for discovering key players in contaminated food webs: the case study of PCBs in the Adriatic Sea [PDF]
, 2015 Modelling bioaccumulation processes at the food web level is the main step to analyse the effects of pollutants at the global ecosystem level. A crucial question is understanding which species play a key role in the trophic transfer of contaminants to ...
Marianna Taffi a, D +3 more
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Petri Nets for Modelling and Analysing Trophic Networks [PDF]
Fundamenta Informaticae, 2018 We consider trophic networks, a kind of networks used in ecology to represent feeding interactions (what-eats-what) in an ecosystem. Starting from the observation that trophic networks can be naturally modelled as Petri nets, we explore the possibility of using Petri nets for the analysis and simulation of trophic networks.
Baldan, Paolo +5 more
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Towards end-to-end (E2E) modelling in a consistent NPZD-F modelling framework (ECOSMO E2E_v1.0): application to the North Sea and Baltic Sea [PDF]
Geoscientific Model Development, 2019 Coupled physical–biological models usually resolve only parts of the trophic food chain; hence, they run the risk of neglecting relevant ecosystem processes. Additionally, this imposes a closure term problem at the respective “ends” of the trophic levels
U. Daewel +4 more
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