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Neighbours consistently influence tree growth and survival in a frequently burned open oak landscape

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DataONE2023-02-20 更新2025-08-02 收录
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The 16-ha Cedar Creek plot had all trees at least 2 cm dbh measured every 5 years from 1990 to 2015. Additional censuses were carried out every year, but trees were only checked for survival in those intervening censuses. The six growth censuses are thus numbered 1, 6, 11, 16, 21, 26. Data included here were used in Davis and Condit (2022). More details on methods and other uses of the data appear Davis (2021) and Davis et al. (1997, 2005). References Davis, M. A., Duke, A., Ibsen, T., Tran, H., and Rhodes, R. 1997. Spatial Distribution of Penstemon grandiflorus(Nutt.) and Geomys bursarius in a fragmented oak woodland in Minnesota, USA. Natural Areas Journal 17:136-143. Davis, M. A., Curran, C., Tietmeyer, A., and  Miller, A. 2005. Dynamic tree aggregation patterns in a species-poor temperate woodland disturbed by fire. Journal of Vegetation Science 16: 167-174. Davis, M. A. 2021.  Twenty-five years of tree demography in a frequently burned oak woodland: implications for savanna restora..., See references under abstract., The 16-ha Cedar Creek plot had all trees at least 2 cm dbh measured every 5 years from 1990 to 2015. Additional censuses were carried out every year, but trees were only checked for survival in those intervening censuses. The six growth censuses are thus numbered 1, 6, 11, 16, 21, 26.  Summary Results: We present four short tables in pdf format with median growth and survival rates as a function of density. Detailed legends for each table appear in the pdf.  Table 1. Median growth rate of bur oak vs. neighborhood density, both conspecific and heterospecific. Densities were binned into four categories, giving 16 combinations and clearly separating effects of conspecifics and heterospecifics. Growth rate decline consistently with density, moreso with conspecifics than heterospecifics. Growth is transformed with the equation given the the text.  Table 2. Growth rate of pin oak vs. neighborhood density, as in Table 1. Growth rate declined with conspecific density, but not heterospecific.  T...
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2025-07-19
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