Week 2 + 3 Report

These past 2 weeks, I have done lots of readings on the book An Introduction to Agent-based Modelling by Uri Wilensky and William Rand. I read from Chapter 1 to Chapter 7, learning about what agent-based modelling means, how to create a simple agent-based model and how to analyze the model that we have.

I further studied some models in the library of NetLogo, including the Flocking Model. This model illustrates the flocking of birds based on 3 primary rules: alignment, cohesion, and separation. Learning about how this model works and figuring out the code behind it helps me have a better understanding of the Whirligig Models (the stream, the turn-back, getting food...)

I also did some readings on articles about the whirligig beetles' behaviors, namely Social Behavior of Adult Whirligig Beetle by V. J. Fitzgerald and Aggregation and Predator Avoidance in Whirligig Beetles by K. Vulinec, M. C. Miller. I learned that whirligig beetles are very sensitive to the temperature of the environment, and they will move accordingly in response to that temperature. For example, they will gather closely together when they are cold and in the need of warming up. Moreover, a larger group of whirligig beetles will also respond more quickly to any changes in the environment (wave of water, predation, random event...) For example, they will move in a zig-zag motion in order to confuse the predators.

Next week, Dr. Stonedahl and I are planning on reading the whirligig trails data. We also may take a look at a potential new model of the chicks' moving behaviors (thanks to Dr. Shara) and get some data from these video footages.




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