Background
Skellam was born in Staffordshire.
Skellam was born in Staffordshire.
New College.
In 1951, John G. Skellam developed the reaction-diffusion model of invasion biology. This model describes the dynamics of populations, which simultaneously develops and spreads, and provides that the invasion front moves with constant speed. He explained on the basis of habitation muskrat introduced to Europe that only by chance the species may be in a place where it would have to grow.
Skellam has provided a model that allows to take the dynamics of populations as a random variable at any time t.
Its stochastic form is much more flexible than previous deterministic equations. He was principal scientific officer and editor of the "Biometrics", the official organ of Biometric Society, an international association headquarters in London.
He was one of the most respected members of the British Region of the Biometric Society.