Habitat Fragmentation and Metapopulation Dynamics: Understanding Species Survival in a Changing Landscape

What is Habitat Fragmentation?

Habitat fragmentation refers to the process by which large, continuous habitats are divided into smaller and isolated patches. This can occur due to human activities such as urbanization, agriculture, or infrastructure development.

Fragmented habitats reduce the amount of available space for species, leading to a series of ecological consequences that affect both individual organisms and entire populations.

Metapopulation Theory

A metapopulation is a group of interlinked local populations of the same species. These populations are isolated from each other by inhospitable areas, but can exchange individuals through dispersal.

The incidence-function model used in this simulation helps predict how these populations interact and influence one another.

Impact on Species Survival

Habitat fragmentation can lead to a decrease in the overall population size of species, as smaller patches provide less resources and increased risk of local extinction.

Dispersal, or the movement of individuals between patches, is crucial for maintaining connectivity and preventing genetic isolation.

Modeling Fragmentation and Dispersal

The simulation uses a 2D map to represent habitat fragmentation, where each patch can either support local populations or be inhospitable.

By adjusting the sliders for fragmentation, dispersal range, local extinction rate, and speed, one can observe how these factors affect species survival.

Frequently asked questions

Try it live

Everything above runs in your browser — open Habitat Fragmentation and Metapopulation: 2D Map and change the parameters while it is running. Nothing is installed, nothing is uploaded, the whole model lives in one tab.