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Fig. 1 | Ecological Processes

Fig. 1

From: Trajectory from beech and oak forests to eastern broadleaf forests in Indiana, USA

Fig. 1

Historical forest types (composition ≥ 24% by township; rare oak-hickory and beech-sugar maple re-classified as oak or beech, respectively) of Indiana (panel a). Any township without a species or genus ≥ 24% was classed as eastern broadleaf forest. Current forest types (species or oaks, hickories, and ashes ≥ 24% by county) of Indiana (panel b). Any county without species or oaks, hickories, and ashes ≥ 24% was classed as eastern broadleaf forest. Counties without 100 trees (white) were excluded. Despite different areas for townships and counties, sample size was about 215 trees in townships and 335 trees in counties

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