遇见数据集

Summary of aster model comparisons to test for effects of population, region and soil and all interactions on <i>C. fasciculata</i> lifetime seedpod production.

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NIAID Data Ecosystem2026-03-07 收录
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The full model included fixed effects for block, region, habitat, population and all interactions, with lifetime seed production, consisting of multiple life history stages (Fig. S1), as the response. The effect of population was tested at multiple life history stages (@seeds, @ pods and early-season survival (@esurv). Likelihood ratio tests were used to compare the fit of the full model to reduced models that sequentially dropped terms. Analysis of deviance (−2 log likelihood) and χ2P-values for each model test are listed. The block and the interaction terms are tested against the full model, while the population, region and soil terms were tested against the model without interactions. Only populations planted at all sites (CRA, GCD, KZA) were included in this analysis.

本完整模型纳入了区组(block)、区域(region)、生境(habitat)、种群(population)及其所有交互作用项的固定效应(fixed effects),以涵盖多个生活史阶段(life history stages)的终生种子产量(lifetime seed production,图S1)作为响应变量。种群的效应在多个生活史阶段(@种子产量、@荚果以及季早期存活率(@esurv))中进行检验。本研究采用似然比检验(likelihood ratio tests),比较完整模型与依次剔除各效应项的简约模型(reduced models)的拟合优度。各模型检验对应的偏差分析(Analysis of deviance)结果、-2对数似然值(−2 log likelihood)以及卡方P值(χ²P-values)均已列出。区组及交互作用项以完整模型为参照进行检验,而种群、区域与土壤项则以不含交互作用的模型为参照进行检验。本分析仅纳入了在所有样地均有种植的种群(CRA、GCD、KZA)。

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2012-05-17
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