This is a beautifully simple ecological network model that can simulate predator-prey and competitive multispecies dynamics. This is the B model of the paper 1, I read it long ago and for many years I wanted to make a version of it, finally, I did it.
You can find the source code here https://github.com/lsaravia/snim, to install it you need to clone it using git clone or download and compile it, following the instructions in the README will be enough.
Local food webs can be studied as the realisation of a sequence of colonising and extinction events, where a regional pool of species — called the metaweb— acts as a source for new species. Food webs are thus the result of assembly processes that are …
La explotación y la degradación de los hábitats naturales junto con el cambio climático producen la pérdida de especies y de servicios ecosistémicos. La manera en que las especies forman redes de interacciones determina su estabilidad y resistencia ante los disturbios. En este proyecto, proponemos estudiar las redes de interacción ecológicas incorporando los distintos tipos de interacción (tróficas, mutualistas y competitivas), los disturbios como el cambio de temperatura y la fragmentación del hábitat, que ensamblan las redes de interacción a diferentes escalas, desde la de comunidades locales a la biogeográfica. Acoplado a esto, investigaremos la fragmentación de uno de los ambientes terrestres más importantes, los bosques, a escala global, para producir señales de alerta temprana con respecto a la pérdida de biodiversidad.
Knowledge of the food web structure and complexity are central to better understand ecosystem functioning. A food-web approach includes both species and energy flows among them, providing a natural framework for characterizing species’ ecological …
SNIM This is a C++11 implementation of a stochastic multispecies model. The model has multiple applications to investigate the relationship between ecological interactions (competition, predation) and diversity. It involves a discrete definition of individuals belonging to a given set of species. The dynamics are essentially probabilistic at the microscopic scale, but it leads to recognizable macroscopic patterns both in space and time. The model in is actual version is spatially implicit but a spatially explicit version is planned (never did it).