Herbivory and Plant Interspecific Competition

This model simulates plant interspecific competition and herbivory. Students may investigate two herbivory relationships and an interspecific competition relationship between two plant species.

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Herbivory and Animal Interspecific Competition

This model simulates animal interspecific competition and herbivory. Students may investigate two herbivory relationships and an interspecific competition relationship between two animal species.

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Predation

This model simulates predation interaction and the patterns of population changes over time.

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Community interaction-Mutually beneficial

This model simulates the interaction of mutually beneficial between bees and sunflowers.

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Community Interaction Game

Play this game to identify interaction among six mysterious species.

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Bark Beetle Outbreaks

Explore forest dynamics resulting from the interaction among bark beetle, spruce forest, temperature, drought severity, and tree diversity. 

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Climate-driven Bark Beetle Outbreaks


This model simulates climate-driven bark beetle outbreaks. Compared to the basic "Bark Beetle Outbreaks" model above, this model separates the effects of rising temperatures on beetle reproduction and survival. This model also allows students to explore the impacts of sanitation cutting and salvage cutting. 

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Carrying Capacity

Explore carrying capacity in a hypothetic elk population. You may explore how carrying capacity is influenced by four types of factors: food, predator, another herbivore, and temperature.

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Brine Shrimps in Great Salt Lake

A real-world example of carrying capacity.  Explore the brine shrimp population dynamics in the south arm of the Great Salt Lake resulting from the lake salinity changes, which are affected by stream inflow, north arm water inflow, and evaporation.

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