speciesreact

Speciesreact is a software framework designed to model, simulate, and visualize interactions among biological species using reactive programming principles. It provides a declarative way to define species, their traits, environmental factors, and stimuli, and then automatically propagates changes through dependent computations and visualizations. The goal is to help ecologists, educators, and policy analysts explore how populations respond to shifting conditions.

Key features include a data-driven model that supports species definitions with traits such as growth rate, carrying capacity, and behavior rules; an environment layer that hosts variables like temperature and resource availability; and a reactive engine that recomputes outcomes when inputs change. The framework offers a domain-specific language for specifying interactions (predation, competition, mutualism) and supports stochastic simulation, discrete time steps, and agent-based behavior. It includes visualization widgets for time-series plots, heat maps, and geospatial maps, and can import data from common formats like CSV or JSON.

Architecture centers on modular components: a core simulation kernel, a species and environment data model, a reactive dataflow graph, a visualization layer, and a plugin system for extensions. It is designed to run in modern JavaScript/TypeScript environments and can interoperate with existing ecological datasets and GIS tools.

Usage scenarios include exploring predator–prey dynamics, evaluating management interventions, and creating educational demonstrations. The project emphasizes documentation, test coverage, and community-driven development.

See also: reactive programming, ecological modeling, agent-based modeling, data visualization, GIS.