IMHO, I don't see any ONE standard measure of fragmentation. So much
depends upon the measurement scale, the available data, sharpness of
boundaries considered, and the objectives. Fragmentation
encompasses size, degree of isolation, and distance, shape, and type of
intrusive earth cover or disturbance, among others.
See recent issues of Landscape Ecology. In particular, Vol 9.,
No.4. has articles by Gustafson and Crow (landscape structure and cowbird
parasitism), Simpson et al.(48 years of landscape change in Ohio),
van Hees (A fractal model of vegetation complexity in Alaska),
Leduc et al. (Fractal dimension estimates of a fragmented landscape),
Luque et al. (Temporal and spatial changes in NJ pine barrens) with
examples of some of the popular metrics surrounding earth
cover "fragmentation."
(Dave and Ray: Gustafson, Crow, and van Hees are USFS employees).
_ _
/s/ Vic Rudis 1o,o1
|Personal Page "http://www2.msstate.edu/~vrudis/index.html" |
|USFS Research Unit "http://www.msstate.edu/Dept/Forestry/ecofia.html"|
On Fri, 8 Sep 1995 /S=R.CZAPLEWSKI/OU1=S28A@MHS-FSWA.ATTMAIL.COM wrote:
> Date: ## 09/08/95 13:01 ##
> Does anyone know of established methods to quantify the degree of
> forest fragmentation?
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