Introduction

Circles is a geographical model that uses the location of known occurrences and predicts that a species can be present within a circle with a given radius around these occurrence points. This model does not use the input of environmental variables to predict the distribution of a species.

Advantages

• Simple and easy to interpret
  
• Presence only model, no absence data needed
  

Limitations

• Does not use environmental variables to predict species occurrence
  
  

Assumptions

Requires absence data

No

Configuration options

BCCVL uses the ‘dismo’ package. Currently there are no configuration options for this algorithm in the BCCVL.

References

Hijmans RJ, Elith J (2015) Species distribution modeling with R.