Laserfiche WebLink
<br />I 001.5'76 <br /> Table 1. Factor loadings of tree and understory species and environmental variables on the first 3 components <br />I from Principal Components Analysis of understory species frequencies. The column h2 gives the <br /> proportion of the variance of each variable (species or environmental measurement) accounted for by <br /> the first 3 components. Species' names follow Harrington (1954). Total variation extracted by <br /> three axes ~ .5B. <br />I Component <br /> Variable 1 2 3 h2 <br /> ~ species <br /> POpu7.uB tremutoideB trees .70 -.11 .21 .55 <br />I Poputus tremutoides saplings .51 .18 .11 .30 <br />Populus trerrruZoides seedlings .58 .22 .10 .39 <br />Abies l.asioaarpa trees -.55 -.28 .14 .40 <br /> Abies lasioaarpa saplings -.25 -.27 .06 .14 <br />I Abies tasioaarpa seedlings -.53 -.31 .29 .49 <br />Piaea engeanannii trees -.83 .26 .01 .75 <br />Picea engeZmannii saplings -.13 .43 -.01 .20 <br /> Piaea engelmannii seedlings -.41 .10 .16 .20 <br />I Understory species <br />Aehi l lea lanu Zoaa .98 .09 .02 .96 <br />Lathyl'Us leucanthu8 .89 -.18 .15 .85 <br /> Campanula l'otundifoUa .89 .32 .17 .92 <br /> Viaia ameriaana .88 -.19 .17 .84 <br />I Symphoriaarpoa oreophilu8 .88 -.24 -.07 .83 <br />Festuaa thurben .83 .16 -.01 .72 <br />ThaZiatrum fendleri .80 -.18 .03 .68 <br /> Taraxacwn offiaionale .79 .11 -.22 .68 <br />I Lupinus argenteus .77 -.18 .22 .68 <br />Carex geyeri .77 .03 .26 .66 <br />Erigeron speaiosu8 .73 .15 .14 .58 <br /> Rosa spp. .73 .10 .03 .54 <br /> Fragaria virginiana .72 .26 .27 .66 <br />I Geranium ric~aonii .67 -.09 .07 .46 <br />Agropyron trachycau Zum .65 .28 .18 .54 <br />Pseudoaymopteria montanus .65 .43 .25 .67 <br /> Poa pratensis .65 -.13 .04 .44 <br />I Bromus aiZiatua .63 -.13 .19 .45 <br />smiZacina racemosa .63 .15 .09 .42 <br />HeZenium hoopesii .61 .20 .21 .45 <br /> Viola canadensis .34 -.75 -.09 .69 <br /> Rubus idaeus .15 -.27 -.79 .71 <br />I Chenopodium spp. .14 -.26 -.79 .70 <br />CapseZZa bursa-pastoris .13 -.25 -.79. .70 <br />Pachystima myrsinites -.05 -.82 -.24 .73 <br /> HapZopappus parryi -.08 -.49 .35 .37 <br />I Poa refZexa -.37 .71 -.21 .69 <br />RanuncuZus gZabel'roimus -.47 .60 -.33 .69 <br />EPilobium hornemannii -.49 .59 -.33 .69 <br /> OxypoZis fendZeri -.49 .58 -.31 .67 <br /> Juncus baZticus -.49 .59 -.32 .69 <br />I Erigeron spp. -.50 -.46 .04 .46 <br />Erigel'on couZteri -.52 .63 -.19 .71 <br />Ste/laria umbe/lata -.62 .47 -.14 .63 <br /> Pedicularis racemosa -.66 .20 .08 .49 <br />I Arnica oordifolia -.69 -.45 .43 .85 <br />Lichens -.78 -.41 -.04 .77 <br />Pyro Za secunda -.78 -.38 .15 .79 <br /> PoZemonium~ulcherl'imum -.79 .17 .28 .72 <br /> Mosses i -.83 -.16 -.17 .74 <br />I LuzuZa parf.iflol'a -.85 .33 .18 .85 <br />Monesis unifZol'a -.85 .10 .08 .75 <br />Vacoiniwn bpp. -.87 .07 .19 .80 <br /> I <br />I EnVironmen~al measurements .75 .46 -.01 .78 <br />Radiation ndex <br />Drainage c~aS8 .22 .09 -.14 .08 <br />Canopy COy r .15 -.01 -.11 .03 <br /> Percent Stpne in Soil Volume .11 -.10 -.00 .02 <br />I Percent Slbpe -.27 -.54 -.14 .39 <br />Litter andlMulch Depth -.35 -.15 .19 .18 <br />Eleva tion I -.49 -.33 .57 .67 <br /> Snow Durat~on -.91 .02 .07 .84 <br /> i .35 .14 .08 <br />I Proportionlof variation <br /> ! <br /> 12 <br />I <br />