Within-stand seedling dispersal for isolated pinnsstrobus within hardwood stands

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Abstract
White pine (P. strobus L.) seedling distributions were sampled around isolated seed trees located on 12 study areas within hardwood stands. Seedling densities were found to differ significantly in different directions from the apparent seed source. Pooled densities from all study areas were lowest and highest in the southwest and northeast quadrants, respectively. With some exceptions, the Weibull probability density function was helpful in describing the general shape of the seedling distributions. Correlations between estimated Weibull parameters and stand characteristics surrounding each seed source suggest that the shape of seedling density distributions is not strongly related to stand characteristics. Implications for modeling seed dispersal are also discussed.

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