Table 7.

Correlations between traits^*and selected environmental variables^†‡

	TRAIT1	TRAIT2	BS1	TOTWT	EM	RTSH	BB2	TAPER
ELEV	−0·75	0·06	−0·62	−0·39	0·52	0·36	−0·10	0·35
LAT	0·13	−0·62	−0·05	−0·09	−0·31	0·00	0·43	−0·45
SUNEXP	0·05	0·01	0·08	0·01	−0·02	−0·03	0·04	0·04
SPRFRST	−0·72	−0·08	−0·68	−0·32	0·44	0·36	−0·04	0·24
FALLFRST	0·70	0·18	0·69	0·31	−0·40	−0·34	0·00	−0·14
FRSTFREE	0·72	0·13	0·69	0·32	−0·43	−0·35	0·02	−0·19
ANNAVT	0·61	0·38	0·63	0·39	−0·26	−0·35	−0·18	−0·02
WINMIN	0·67	0·24	0·67	0·35	−0·36	−0·37	−0·06	−0·09
WINMAX	0·67	0·23	0·67	0·35	−0·37	−0·36	−0·05	−0·10
SUMMIN	0·47	0·28	0·49	0·29	−0·20	−0·32	−0·16	−0·06
SUMMAX	0·12	0·55	0·21	0·29	0·15	−0·14	−0·40	0·22
RNGAVT	−0·58	0·04	−0·54	−0·18	0·44	0·24	−0·16	0·16
ANNPRE	0·23	−0·33	0·18	−0·06	−0·24	−0·10	0·34	−0·22
WINPRE	0·24	−0·25	0·20	−0·04	−0·22	−0·11	0·29	−0·17
SUMPRE	0·15	−0·57	0·04	−0·18	−0·27	−0·05	0·47	−0·38
JULARID	0·02	0·59	−0·10	−0·19	−0·21	0·06	0·45	−0·34

^*See Table 1 for trait codes and units of measurement.

^†Key to environmental variables: ELEV = elevation, LAT = latitude, SUNEXP = sun exposure on 21 March, SPRFRST = date of first spring frost, FALLFRST = date of last autumn frost, FRSTFREE = frost-free period, ANNAVT = annual average temperature, WINMIN = average daily minimum temperature from December through February, WINMAX = average daily maximum temperature from December through February, SUMMIN = average daily minimum temperature from June through August, SUMMAX = average daily maximum temperature from June through August, RNGAVT = difference in temperatures between the warmest and coldest months, ANNPRE = total annual precipitation, WINPRE = total precipitation from December through February, SUMPRE = total precipitation from June through August, JULARID = ratio of July precipitation to July average temperature plus 10.

^‡Correlations equal to or greater than 0·06 are significantly different from zero at P = 0·05.