Table 2 Coefficient of determination (R²) and significance level from simple ordinary least squares regression models for environmental variables and the three components (α, β and γ) of phylogenetic and functional diversity derived in elevational bands along the three study transects. DIS_PHY and DIS_FUN indicate phylogenetic and functional dispersion, respectively. P < 0.05; P < 0.01; P < 0.001.

Transect	Diversity index	RArea	PC1_clim	PC1_hetero	PC2_hetero
BR	αDIS_PHY	0.787^***	0.294	0.195	0.004
	βDIS_PHY	0.269	0.002	0.567^**	0.396^*
	γDIS_PHY	0.704^***	0.191	0.291	0.031
	αDIS_FUN	0.073	0.079	0.549^**	0.567^**
	βDIS_FUN	<0.001	0.209	0.508^*	0.583^**
	γDIS_FUN	0.013	0.192	0.592^**	0.694^***
SO	αDIS_PHY	0.398^*	0.549^**	0.195	0.245
	βDIS_PHY	0.211	0.404^*	0.273	0.222
	γDIS_PHY	0.442^*	0.568^**	0.127	0.215
	αDIS_FUN	<0.001	0.029	0.505^**	0.174
	βDIS_FUN	0.037	0.240	0.678^***	0.099
	γDIS_FUN	0.003	0.052	0.499^**	0.195
BB	αDIS_PHY	0.488	0.868^**	0.473	0.142
	βDIS_PHY	0.687^*	0.904^***	0.561	0.120
	γDIS_PHY	0.514	0.888^***	0.515	0.147
	αDIS_FUN	0.645^*	0.832^**	0.630^*	0.229
	βDIS_FUN	0.516	0.821^**	0.670^*	0.175
	γDIS_FUN	0.666^*	0.818^**	0.642^*	0.244

Abbreviations: BR – Baekdudaegan ridge transect; SO – Osaek transect in Mt. Seorak; BB – Bohyunsa transect in Mt. Baekhwa; RArea – regional area with log-transformation; PC1_clim – PC1 from climatic variables; PC1_hetero – PC1 from standard deviations of topographic variables; PC2_hetero – PC2 from standard deviations of topographic variables.

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