Hello,
I have abundance data for bird surveys at various sites - for simplicity, let's say I did 10 surveys at each of 10 sites.
When I use EstimateR() function in R, it gives me a Chao1 value for each survey at each site (so 10 Chao1 values for each site in this example). With that I can generate summary statistics within each site, so max, min, median of the Chao1 values for all the visits at a given site.
However, rather than one Chao1 value per *survey* and summary statistics, what I need is a Chao1 value for the *site overall* - the estimate of the total species richness for the site across all surveys at that site. This does not appear to be represented in the results. The summary statistics are not helpful in this sense, because getting, e.g., a median for the Chao1 across 10 visits makes no sense - I want to know the estimate for all species at the site across all visits. It doesn't seem the Chao1 values at all surveys/site are being integrated in a way that establish the value I need.
Do I need a different function (e.g. something besides EstimateR())? Or is there a way I can process the EstimateR() results to get a Chao1 value for the whole site? Or am I totally missing something about the results?
Thanks in advance!
https://mirror.linux.duke.edu/cran/web/packages/vegan/vignettes/diversity-vegan.pdf
Dear @Jess Ch, this RG discussion link with similar topic maybe useful
"How to interpret Chao1 and Chao2 values?" https://www.researchgate.net/post/How-to-interpret-Chao1-and-Chao2-values
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