Math Help - Simple way to predict population growth

I used the logistic model to predict population growth of turtles in a class presentation but my teacher asked me to provide him with a simpler way of modeling the population growth.

My question is, does anyone know of a "simpler" way involving the use of differential equations to predict population growth? I did not use the exponential model because it did not take into account factors that limit population growth.

Originally Posted by sparky

I used the logistic model to predict population growth of turtles in a class presentation but my teacher asked me to provide him with a simpler way of modeling the population growth.

My question is, does anyone know of a "simpler" way involving the use of differential equations to predict population growth? I did not use the exponential model because it did not take into account factors that limit population growth.

Possibly as a difference equation?

CB