Metacommunity dynamics simulations for diatoms in Antarctic ponds



We use metacommunity simulations to understand how local and regional community assembly dynamics influence the regional biodiversity patterns that we observe in the McMurdo Dry Valleys ecosystem. A metacommunity refers to a network of communities in an ecosystem that are connected to one another by the dispersal of biota among sites. For example, ponds in the McMurdo Dry Valleys share common diatom species that are likely dispersed among neighboring ponds by wind.

We have written a metacommunity model for the R programming language (MCSim, Sokol et al. 2015) to explore what biodiversity patterns look like for different metacommunity connectivity scenarios. This gives us the opportunity to model alternative hypotheses and explore how biodiversity metrics, such as beta-diversity, can be expected to respond to changing ecosystem connectivity for different sets of assumptions about the underlying dynamics that could potentially control biodiversity in the Dry Valleys. 

Date Range: 

Saturday, March 1, 2014 to Monday, March 2, 2015

These are example input files used for the Metacommunities simulations, all the empirical data used.Four csv files contain information on the communities densities, UTM coordinates as well as Lat/Lon coordinates 

Files on simulated community dynamics results as species counts. Includes code example.



Dataset ID: 

Data Citation
Sokol, E.R. 2016. Metacommunity dynamics simulations for diatoms in Antarctic ponds. Environmental Data Initiative. DOI: 10.6073/pasta/a123f47a9a4d409a0da8839eff280927. Dataset accessed 23 June 2024.

Principal Investigator(s): 

Associated Personnel: 

Data Manager