Tom has asked me.... what r  (r1, r2) should I use?   Well

any r which is the same for species 1 and 2 will demonstrate

my point....  but put in   0.5   if you want some number

(this translates to each mature pair producing one young

each year with no non-reproductive individuals in the

population).  If N = 1   .... yikes.... the organism is

self-reproducing a Half-organism....



--- Deane