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Addis Ababa University Libraries Electronic Thesis and Dissertations: AAU-ETD! >
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http://hdl.handle.net/123456789/2640
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| Title: | LATTICE GEOMETRY, GAP FORMATION AND SCALE-INVARIANCE |
| Authors: | Seid, Mohammed |
| Advisors: | Dr. Tatak Yirgou |
| Keywords: | LATTICE GEOMETRY
SCALE-INVARIANCE |
| Copyright: | Jun-2010 |
| Date Added: | 6-May-2012 |
| Publisher: | AAU |
| Abstract: | In this work, we analyze the gap dynamics of forest in connection with lattice geometry.
we also analyze the establishment (birth), growth and mortality (death) of individual
trees of Barro Colorado Island (BCI) forest using two slightly different forest disturbance
models on three lattices, each with square, triangular, and hexagonal geometry in order to
study the effect of geometry. Local nature of ecological interaction can generate complex
behaviors such as criticality (scale-invariance). we fit the global and local densities and
cluster size distribution from the spatial map of the forest (1983-1984). we also found an
effect of geometry on the conditions under which criticality appears in model forests. The
scaling exponent of the gap-size distributions, however, was found to be independent of
model and geometry. |
| URI: | http://hdl.handle.net/123456789/2640 |
| Appears in: | Thesis - Physics
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