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Sequential development of tree forms in Mountain Ash trees.

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posted on 2012-10-05, 00:58 authored by David B. Lindenmayer, Wade Blanchard, Lachlan McBurney, David Blair, Sam Banks, Gene E. Likens, Jerry F. Franklin, William F. Laurance, John A. R. Stein, Philip Gibbons

Form 1: Mature, living tree; Form 2: Mature living trees with a dead or broken top; Form 3: Dead tree with most branches still intact; Form 4: Dead tree with 0–25% of the top broken off; branches remaining as stubs only; Form 5: Dead tree with top 25–50% broken away; Form 6: Dead tree with top 50–75% broken away; Form 7: Solid dead tree with ≥75% of the top broken away; Form 8: Hollow stump. In subsequent surveys we added a ninth category – Form 9: Collapsed tree.


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