be used to identify and solve existing problems before they occur, 
problems as well as anticipate 
ACKNOWLEDGEMENTS 
I thank Dr. Kenneth Crowell for the 
data pertaining to mammal richness 
and Jonathan Labaree and Bruce 
Morehouse for technical support. 
This study benefited from 
discussions with Dr. Janet Campbell 
of the Bigelow Laboratory for Ocean 
Sciences and Dr. Manfred Ehlers of 
the University of Maine National 
Center for Geographic Information 
and Analysis. I am also indebted to 
the following individuals and 
organizations for advice and support: 
Dr. Robert Metcalfe and David 
Newbold of 3COM Corporation, Bob 
Barker of SPOT Image Corporation, 
Bill Shelley and Roger Greene of 
Landmark Technologies, Candice 
Tuttle of Lasergraphics, Inc. and 
Lucy Saunders of Systat, Inc. This 
study was made possible in part by 
funds granted by the Island 
Foundation and equipment granted 
by Apple Computer, Inc. 
CITATIONS 
Crowell, K.L. 1986. A comparison of 
relict versus equilibrium models for 
insular mammals of the Gulf of 
Maine. Biologicial Journal of the 
Linnean Society. 28: 37-64. 
Ehlers, M., M.A. Jadkowski, R.R. 
Howard, and D.E. Brostuen, 1989. 
Application of SPOT data for 
regional growth analysis and local 
planning. Photogrammetric 
Engineering and Remote Sensing 
(in press). 
Lillesand, T.M., R. W. Kiefer 1987. 
Remote Sensing and Image 
Interpretation, 2nd ed. Wiley, New 
York. 
MacArthur, R.H. and Wilson, E.O. 
1967. The theory of island 
biogeography. Princeton Univ. 
Press, Princeton, N.J. 203 pages. 
Peet, R.K. 1974. The measurement 
of species diversity . Annual Review 
of Ecology and Systematics 5:285- 
307. 
Pielou, E.C. 1975. Ecological 
Diversity.. Wiley-lnterscience, New 
York, New York, USA. 
Podolsky, R.H., B.C. Morehouse and 
R. Greene. 1990. Geographic 
Information and Analysis of Digital 
Earth Imagery on the Macintosh II. 
Proceedings, Advances in Spatial 
Information Extraction and Analysis 
for Remote Sensing, (in press): 
ISPRS, Orono, Maine 
Podolsky, R.H. and B.C. Morehouse 
1990. Analyzing and managing 
digital earth imagery: An ecological 
perspective. Scientific Computing 
and Automation. January, 1990: pp. 
19-26. 
Rasband, W. 1990. Image Software 
Package Ver. 1.28. National Institute 
of Health Research Services 
Branch, NIMH. 
Romme, W.H. 1982. Fire and 
landscape diversity in subalpine 
forests of Yellowstone National 
Park. Ecological Monographs 52: 
199-221. 
Scott, J.M., et al 1987. Species 
Richness: A geographical approach 
to protecting future biological 
diversity. BioScience Voi 37, No. 11, 
pp. 782- 788. 
Shannon, C.E., W. Weaver (1949) 
The mathematical Theory of 
Communication. University of 
Illinois Press, Urbana. 
Suffling, R. et al 1988. Control of 
landscape diversity by catastrophic 
disturbance: a theory and a case 
study of fire in a Canadian boreal 
forest. Environ. Manag. Voi. 12, No. 
1, pp. 73-78. 
Wilson, E. O (editor). 1988. 
Biodiversity. National Academy 
Press. Washington D.C. pp. 21-71, 
157-181.