Bifurcations in Marine Ecosystems

Johannessen, Tore

doi:10.1016/b978-0-12-417016-2.00005-1

Cited by 2 publications

(2 citation statements)

References 61 publications

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“…El modelo presa-depredador es bien conocido y utilizado para describir comportamientos poblacionales de sistemas muy variados desde virus, bacterias, algas, parásitos, insectos y pequeños y grandes mamíferos, así como sinergias adaptativas e inclusive vínculos con y entre vegetales (Beauchamp, 2007;Blanchard et al, 2017;Dattner et al, 2017;Barbosa y Castellanos, 2005;Johannessen, 2014). La representación analítica de la relación presa-depredador, desarrollada en paralelo por Alfred Lotka y Vito Volterra da lugar a un sistema de ecuaciones diferenciales acopladas, conocidas como ecuaciones de Lotka-Volterra (LV) (Lotka, 1910), ha sido ampliamente estudiada y aplicada (Skvortsov et al, 2018;Bunin, 2017;Portalier et al, 2019).…”

Section: Introductionunclassified

Modelado Ecosistémico mediante un Sistema Multiagente

Bustos

Sánchez

Brusa

et al. 2023

RTyC

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En este trabajo se presenta el modelado de un ecosistema sencillo de presas y depredadores, mediante un sistema multiagente donde cada individuo de una especie es caracterizado como un círculo de cierto radio y masa que se desplaza con una rapidez constante en un universo plano finito. Las interacciones entre agentes son caracterizadas por las superposiciones de áreas de cada agente durante sus desplazamientos. Este modelo no sólo permite ajustar condiciones que muestran una evolución temporal oscilatoria acoplada de las poblaciones, propia de las distintas soluciones a la ecuación de Lotka-Volterra, sino también generar seguimiento de variables de interés ecosistémico tales como la distribución espacial de agentes o la densidad de biomasa.

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Section: Introductionunclassified

Modelado Ecosistémico mediante un Sistema Multiagente

Bustos

Sánchez

Brusa

et al. 2023

RTyC

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“…Living organisms produce a wide range of low molecular weight, natural organic compounds, including phycotoxins, marine toxins, toxins from terrestrial animals, phytotoxins, toxins from fungi, and antibiotics, and other kinds of bacterial toxins. These toxins have been produced and diversified evolutionally for interspecies arms races between offensive predators and defensive prey [ 9 , 10 , 11 , 12 , 13 ]. Here, predators and preys are not necessarily higher organisms but microorganisms.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Strategies to Overcome Drug Resistance: Learning from Various Kingdoms

Ogawara

2018

Molecules

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Drug resistance, especially antibiotic resistance, is a growing threat to human health. To overcome this problem, it is significant to know precisely the mechanisms of drug resistance and/or self-resistance in various kingdoms, from bacteria through plants to animals, once more. This review compares the molecular mechanisms of the resistance against phycotoxins, toxins from marine and terrestrial animals, plants and fungi, and antibiotics. The results reveal that each kingdom possesses the characteristic features. The main mechanisms in each kingdom are transporters/efflux pumps in phycotoxins, mutation and modification of targets and sequestration in marine and terrestrial animal toxins, ABC transporters and sequestration in plant toxins, transporters in fungal toxins, and various or mixed mechanisms in antibiotics. Antibiotic producers in particular make tremendous efforts for avoiding suicide, and are more flexible and adaptable to the changes of environments. With these features in mind, potential alternative strategies to overcome these resistance problems are discussed. This paper will provide clues for solving the issues of drug resistance.

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Bifurcations in Marine Ecosystems

Cited by 2 publications

References 61 publications

Modelado Ecosistémico mediante un Sistema Multiagente

Modelado Ecosistémico mediante un Sistema Multiagente

Comparison of Strategies to Overcome Drug Resistance: Learning from Various Kingdoms

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