Again, if students were in class, you could display the program on the projector and show them how to use the controls and read the graphs. The mice serve as prey for a weasel who is represented as the predator. I also suspect some students will have trouble operating the controls of the program. Amy Ormsbee Biology Predators Prey Relations Lab Partner(s): Miranda The main purpose of this lab was to stimulate a predator prey relationship. In this paper, the two populations’ growth rates obey the logistic law and the carrying capacity of the predator depends on the available number of prey are considered. The concepts are something that ideally, I would work through slowly with class discussions and guiding questions to clear up any confusion. The main components of any predatorprey models are, firstly, how the different population classes grow and secondly, how the prey and predator interacts. This activity may be challenging for some freshman level classes. The concept of a keystone species is introduced at the end. This balance usually can be achieved by including predators (like a wolf) to keep herbivore populations from overgrazing the plants. predatorprey diversity relationships have been commonly observed in terrestrial ecosystems 2830. Students establish an ecosystem where all of the elements are in “balance” and no individual species dies off. Students explore these types of relationships while learning about the competitive exclusion principle, predator-prey cycles, and the difference between a specialist and a generalist. If you run the sim with only those two plants, one of them will go extinct. The simulation found at and is free to use.įor example, the sim starts with two types of plants. It utilizes an interactive program that allows students to manipulate the type of organisms within a system and what they eat. This activity was designed for students during the 2020 Covid19 Pandemic.
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