lanation.blogg.se

You can read this tutorial in full or jump to the particular section you are looking for. It was written with the objective to be helpful for both beginners and experienced R users. This complete tutorial introduces all the possibilities of the virtualspecies package. Many thanks to Céline Bellard for commenting and correcting this tutorial Sampling occurrence points in the dispersal-limited distribution Saving the virtual species objects for later use Extracting elements of the virtual species, such as the rasters of environmental suitability Plot the species-environment relationship Consult the details of a generated virtual species Exploring and using the outputs of virtualspecies Parameters specific to a ‘response’ approach

Introduction: why should we avoid a threshold conversion?

Conversion of environmental suitability to presence-absence Second approach: generate virtual species with a Principal Components Analysis How to create and use your own response functions First approach: generate virtual species distributions by defining response functions