The Azimuth Project
Allee effect (Rev #3)

Contents

Idea

the Wikipedia article:

The Allee effect is a phenomenon in biology characterized by a positive correlation between population density and the per capita population growth rate in very small populations.

Marthematical formilation

Here it is seen in the form of an extra term in the logistics equation: dxdt=rK(Kx)x(ax){d x \over d t} = {r\over K} (K-x) x (a-x) where aa is the Allee extinction threshold.

References

Allee effect, Wikipedia

category: ecology