Hi List-serv community,
I would like to calculate the p values for the random effects in an
unbalanced nested mixed model (lme or lmer). There are three factor levels
(all random), ecoregions, area nested in ecoregion, and sites nested in
area and ecoregion.

My model looks like something like this
coral_richness<-lme(Richness~1, random=~1|Ecoregion/Area/Site)

My goals are to examine 1) how much richness varies at different spatial
scales (ecoregions, areas, sites) and 2) is the variation in richness
significant at each spatial scale.

Any help would be greatly appreciated!!!!!

Thanks,
Stacey

-- 
Stacey Williams, PhD.
University of Costa Rica
FORCE (www.force-project.eu)
ISER (www.isercaribe.org)
stcmwilliams@gmail.com
stcmwilliams@sbcglobal.net

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