Dear colleagues,
Which ecological analyses of the macroinvertebrate community would you recommend? I planned to do Alpha Biodiversity [α], Beta Biodiversity [β] and Gamma Biodiversity [γ]. My goal is to determine the situation in individual localities as well as to compare several localities with each other.
All the best,
Nikola
Beta diversity is good since it analyses simple presence-absence data :)
You might consider using NMDS or non metric multidimensional scaling.
Hello Nikola; As part of your sampling protocol you might want to maintain a running saturation curve after each sampling interval. When the curve draws to an asymptote, you have sampled enough. I have done that sampling ants in California chaparral and have been surprised that even after 10 years sampling a single area I was still getting new, rare, species. It's not clear when you have sampled the "current community" and when you are sampling community turnover. That was a new idea for me.
Best regards, Jim Des Lauriers
Dear Nikola,
You can try the ITC (Index of Trophic Completeness), developed for benthic communities! The main idea - the trophic structure of the community faces simplification from different kinds of threats (anthropogenic influence). The healthier is the community, the more trophic guilds compose it. In theory benthic community has 12 throphic guilds (groups).
All the success, Timur Pavluk
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