We did a correlation analysis to see if there was a correlation of number of white oak and red oak juveniles with the abundance of Acer pensylvanicum and light availability.
Acer pensylvanicum and Castanea dentata had the greatest number of stems in the TS plot (27% and 23% respectively).
Only three species, Acer pensylvanicum, Tsuga canadensis, and Amelanchier arborea had recruitment into the tree size class on the TS plot (Fig.
QUERCUS SEEDLING ABUNDANCE, ACER PENSYLVANICUM ABUNDANCE, AND LIGHT AVAILABILITY
There was a statistically significant, weak, negative relationship between the basal area of Acer pensylvanicum and canopy closure in both the MLBS plot (Spearman's [rho] = -0.23, P = 0.0002, n = 250) and the TS plot (Spearman's [rho] = -0.39, P < 0.0001, n = 300).
Acer pensylvanicum likely contributed some seed in stands 4 and 5.
Seedlings in stand 5 were mostly Acer pensylvanicum, and they were abundant in only one of the five sample years.
These can be less than 5% for Acer rubrum and Tsuga canadensis in New Hampshire (Graber and Leak 1992) and Tilia americana in Wisconsin (Godman and Mattson 1976) and range from 5-70% for Acer pensylvanicum, A.
*** PEN = acer pensylvanicum; RUB - acer rubrum; SAC = Acer saccharum.
Habitat requirements and growth of striped maples (Acer pensylvanicum L.).
The five most common tree species were Acer pensylvanicum, Acer rubrum, Betula alleghaniensis, Fagus grandifolia, and Tsuga canadensis; hereafter, for brevity, we refer to the latter three species by genus only.
At 12 random locations ([greater than]10 m from any transect) in the blowdown, we located the nearest five stems each of Betula, Fagus, and Acer pensylvanicum that were over 2 m tall.
Neither Acer pensylvanicum nor Acer rubrum percent cover differed between habitats (Table 2).
In contrast, densities of Fagus and Acer pensylvanicum were low in 1986 but remained relatively constant throughout the study period [ILLUSTRATION FOR FIGURE 1B, D OMITTED].
Betula, Fagus, and Acer pensylvanicum seedlings larger than the median height in 1987 survived better than those smaller than the median (e.g., 70.1 vs.