Beaver Ecosystem Simulator: Understanding Ecological Interactions Through Hydrology and Population Dynamics

Beavers and Dam Construction

Beavers are known for their remarkable ability to construct dams using sticks, mud, and other debris. These structures not only alter the local landscape but also create new habitats that support a diverse array of plant and animal life. In the simulator, you can observe how beaver dams affect water levels by changing the flow rate through the dam, which is crucial for understanding the ecological impacts.

The dam's construction influences hydrostatic pressure, creating areas with varying depths of water. This change in depth affects the types of plants that can grow and the availability of food sources for various species.

Hydrological Effects

Water flow through a beaver dam is governed by the principles of hydrostatic pressure, which causes water to accumulate behind the dam. The stage-discharge rating curve in the simulator illustrates how different water levels correlate with discharge rates, helping us understand the relationship between water depth and flow rate.

Seepage flows are also critical as they represent the movement of water through the dam structure itself. These flows can either stabilize or compromise the integrity of the dam depending on their volume and direction.

Plant Growth and Ecosystem Dynamics

The altered water conditions behind a beaver dam create new habitats that support plant growth, which in turn provides food for herbivores. The simulator models this relationship by showing how changes in water levels affect the types of plants that can thrive, influencing the diet of trout and other aquatic organisms.

Furthermore, the presence of these plants can also attract predators like eagles, creating a complex web of interactions within the ecosystem.

Trout-Eagle Phase Plane

The phase plane in the simulator represents the dynamic relationship between trout and eagle populations. By adjusting parameters such as food availability (from plant growth) and predation rates, you can observe how these factors influence population sizes over time.

This model helps us understand the balance of predator-prey relationships and the importance of maintaining diverse ecosystems for long-term sustainability.

Frequently asked questions

Try it live

Everything above runs in your browser — open Beaver Ecosystem Simulator: Autumn Dam, Waterfall, Plant Growth, Rain, Trout and Eagle — 2D Dam Section and Phase Plane and change the parameters while it is running. Nothing is installed, nothing is uploaded, the whole model lives in one tab.