Displaying 1 result from an estimated 1 matches for "_ecological_methodology_".
2001 Nov 13
1
rarefaction variance
...cies richness estimates by rarefaction using the Heck et al (1975)
equation. I won't try to reproduce the equation here because it's complex
and I don't know how to render it readibly in ASCII characters, but if
anyone wishes a faxed copy I'll gladly provide one. If you have Krebs
_Ecological_Methodology_ it's on page 415 of the second edition. It's on
page 27 of Gotelli and Graves _Null_Models_in_Ecology_, and in lots of
other references as well.
The problem is not the calculations of binary coefficients
(combinatorials) per se-- I use lgamma(x+1) to do it with logs of
factorials-- but ra...