Available GIS Landsat data is used for landscape habitat types and to study the migration patterns of the Glanville Fritillary butterfly in the Aland Islands, south of Finland. The authors report the results of the incidence function model with GIS data as being surprisingly disappointing. This is because some of the effects of habitat types did not show up. They had to be added one at a time and even then, they did not fit the basic model as well as had been expected. The authors suggest that the Landsat data could be part of the problem.
Landsat data have a large grid size when compared to the scale used for the butterfly.
The authors also state that the habitat classification used for the GIS data may not have been the ideal classification type for the study. This article is wordy and could easily be confusing. However, it is very complete, going through each stage of the study and finishing with the detailed results. Tables, figures, and mathematical equations are also included. Printed Source Rogers, Bill. 1992.