Table 2 in Clonal mechanisms that matter in Agave fourcroydes and A. sisalana invasions in drylands: implications for their management

Table 2. Standardized coefficients of the best-fitting Generalized Linear Mixed Models (GLMMs) explaining bulbil rooting success under the monitored conditions (natural conditions, and experimental plots). Three predictor variable types were considered (intrinsic mother plant and bulbil traits, and extrinsic bulbil traits). Species identity and plots were included as random factors. The best model was ranked according to AIC (Akaike Information Criterion) value (See also Table S5). Non-data cells indicate variables not included in a particular model.
Intrinsic mother plant Extrinsic bulbil Extrinsic bulbilRandom factorSets of bulbils dataIntercepttraits Rosette Scape diameter heighttraits Heighttraits Position Buriedsignificance Species Plot identityMonitored under natural conditions0.936***−0.0640.0340.799***nsGreenhouse plots−3.805***0.835***3.427***nsnsNatural conditions plots−0.481***0.1241.897***nsns
Significance: *** p-values <0.001. ns: no significance

表2 最优拟合广义线性混合模型（Generalized Linear Mixed Models, GLMMs）的标准化系数，该模型用于阐释监测条件（自然条件与实验样地）下的珠芽生根成功率。本次研究考量三类预测变量：母株固有性状、珠芽固有性状及珠芽外在性状。物种标识与样地作为随机因子被纳入模型。最优模型依据赤池信息准则（Akaike Information Criterion, AIC）值进行排序（详见附表S5）。无数据单元格代表对应变量未纳入该模型。
各监测组模型系数及显著性如下：
1. 自然监测条件：截距0.936***，莲座直径-0.064，花葶高度0.034，珠芽高度0.799***，其余性状无显著性数据
2. 温室样地：截距-3.805***，莲座直径0.835***，花葶高度3.427***，其余性状无显著性数据
3. 自然条件样地：截距-0.481***，莲座直径0.124，花葶高度1.897***，其余性状无显著性数据
显著性标注规则：*** 表示p值<0.001；ns 表示无显著性差异。