Hermit Crab Model

What is this model?

This is an agent model of hermit crabs responding to external stimuli. The model simulates the interaction between crabs, seagulls, and humans on an expanse of sand. The only parameter that can be changed is whether it is day or night, but users can also interact with the hermit crabs directly either by clicking on them (simulating a human touch), or by moving seagulls with the arrow keys.

What can this Model be used to teach?

Understand how the behavior of different species can affect their interaction patterns

Examine how short-run and long-run conditions can be different in unstable environments

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