Modeling the biogeography of pelagic diatoms of the Southern Ocean, links to model results and images

The anthropogenic impact of climate change on these species is assessed by model projections on future scenarios for the end of this century. Besides observation data from public data repositories such as GBIF, data from the Hustedt diatom collection was used. The models presented here rely on so called presence only observation data.

For this simple data type Maxent has been proven to be a good modeling method. SDM seems a suitable modeling method to study biogeography of marine pelagic diatoms in the Southern Ocean. Models of decent quality could be build, despite partly poor data.

Future projections indicate a moderate decrease of the suitable areas towards the end of the century for most of the species.