Volume 36 – Issue 2 (Jun 1971)

A Phytosociological Comparison of a Thirty-seven Year Old and a Mature Hardwood Stand

There has been much speculation concerning the species which constitute the climax vegetation of central Ohio. According to Braun (1964) the study area is within or on the edge of the Mixed Mesophytic Forest region. The Ohio Biological Survey Map (Gordon, 1966) and Kuchler (1965) shows it to be within the Beech-Maple forest. Gordon (1966, 1969) showed it to be within a Beech Forest complex and states that the Beech-Maple Association occurs in the dissected till plains region of Ohio. Laufersweiler’s (1955) study of the relative importance of dominant tree species in a Beech-Maple forest in central Ohio indicated that Fagus grandifolia was dominant. Cain (1935) reported that Acer saccharum (sugar maple) may be succeeding F. grandifolia (beech) in parts of Indiana and Michigan. In a detailed study of a Beech-Maple association in glaciated Cuyahoga County, Ohio, Williams (1936) stated that A. saccharum saplings were growing very favorably in competition

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Changes in Forest Composition on Big Ridge Natural Study Area, Union County, Tennessee

ABSTRACT In 1936 a total of 145 plots were established and the trees recorded by species and diameter. The same plots were re-inventoried in 1967 and changes which had taken place were analyzed. The death of American chestnut during this period and its replacement by oaks and Virginia pine constitute the most dramatic changes. Important changes in density, basal area and importance value occurred in several other taxa.

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Effects of Drift Abrasives on Fontinalis novae-angliae Sull.

Almost no work has been done on aquatic bryophytes in this country (Glime, 1968), and what has been done is primarily taxonomic, with a limited amount of ecological work in lakes. The present report is part of a study to determine some of the ecology and life habits of Fontinalis novae-angliae Sull. in a woodland stream in Plymouth, Grafton Co., N.H. The present paper will treat the effects of the heavy spring drift on these plants.

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