Arithmetic mean, lambda(.), or geometric mean of lambda?

[cooch]

But I digress

Indeed

I resemble that remark.

[cooch]

...the main point is that our best estimate of the stochastic growth rate is, in fact, 1/t X sum (log(lambda)), which is related to the geometric mean as Dave points out. I had lapsed into the standard convention which is to report stochastic growth rate on the log scale (given the log-normal distribution of abundances in a stochastic projection).

I've just updated Chapter 13 (which deals with Pradel models) to work through this in more detail. Section 13.6. Depending on your browser, the following should take you right to it:

http://www.phidot.org/software/mark/doc ... df#page=18