[Mon Jan 19 12:30:40 1998] Log file cleared [Mon Jan 19 12:31:37 1998] Settings changed [Mon Jan 19 12:31:38 1998] Running CANOCO: [Mon Jan 19 12:31:38 1998] CON file [C:\canoco\samples\VEGCHANG\pca.con] saved Program CANOCO Version 4.0 September 1997 - written by Cajo J.F. Ter Braak Copyright (c) 1988-1997 Centre for Biometry, CPRO-DLO Box 100, 6700 AC Wageningen, the Netherlands. CANOCO performs (partial) (detrended) (canonical) correspondence analysis, principal components analysis and redundancy analysis. CANOCO is an extension of Cornell Ecology program DECORANA (Hill,1979) For explanation of the input/output see the manual or Ter Braak, C.J.F. (1995) Ordination. Chapter 5 in: Data Analysis in Community and Landscape Ecology (Jongman, R.H.G., Ter Braak, C.J.F. and Van Tongeren, O.F.R., Eds) Cambridge University Press, Cambridge, UK, 91-173 pp. *** Type of analysis *** Model Gradient analysis indirect direct hybrid linear 1=PCA 2= RDA 3 unimodal 4= CA 5= CCA 6 ,, 7=DCA 8=DCCA 9 10=non-standard analysis Type analysis number Answer = 1 *** Data files *** Species data : GRID_SPE.DTA Covariable data : Environmental data : GRID_ENV.DTA Initialization file: Forward selection of envi. variables = 0 Scaling of ordination scores = 1 Diagnostics = 1 File : GRID_SPE.DTA Title : 20 X 20 vegetation samples of wetland KOOLMANSDIJK (ter Braak & Wiertz 1994) Format : (I5,8(I5,F4.0)) No. of couplets of species number and abundance per line : 8 No samples omitted Number of samples 40 Number of species 100 Number of occurrences 1572 File : GRID_ENV.DTA Title : 5*4 gridcells, 4 strips, 2 years, pH/waterd KOOLMANSDIJK (ter Braak & Wiertz 1 Format : (I3,3(I3,F3.0),I3,F6.0,2(I3,F5.0)) No. of environmental variables : 30 *** Interaction terms *** Variable 31 = variable 21 * variable 26 Variable 32 = variable 22 * variable 26 Variable 33 = variable 23 * variable 26 Variable 34 = variable 24 * variable 26 Variable 35 = variable 25 * variable 26 Variable 36 = variable 21 * variable 27 Variable 37 = variable 22 * variable 27 Variable 38 = variable 23 * variable 27 Variable 39 = variable 24 * variable 27 Variable 40 = variable 25 * variable 27 No transformation of species data No species-weights specified No sample-weights specified Centring/standardization by species = 1 Centring/standardization by samples = 0 No. of active samples: 40 No. of passive samples: 0 No. of active species: 100 Total sum of squares in species data = 1124.95 Total standard deviation in species data TAU = .530318 ****** Collinearity detected when fitting variable 35 ****** ****** Collinearity detected when fitting variable 40 ****** 1 **** Correlation matrix **** SPEC AX1 1.0000 SPEC AX2 .0000 1.0000 SPEC AX3 .0000 .0000 1.0000 SPEC AX4 .0000 .0000 .0000 1.0000 ENVI AX1 .9882 .0001 -.0004 .0082 1.0000 ENVI AX2 .0001 .9652 .0284 -.0161 .0001 1.0000 ENVI AX3 -.0005 .0352 .7796 -.1178 -.0005 .0364 1.0000 ENVI AX4 .0095 -.0181 -.1071 .8576 .0096 -.0188 -.1374 1.0000 pH88 .7684 .3578 -.2059 .0755 .7776 .3707 -.2642 .0881 Waterd88 -.7718 -.3886 .1733 .0787 -.7810 -.4026 .2224 .0917 Waterdep -.9113 .2314 .0626 -.0072 -.9221 .2397 .0803 -.0084 A *1977 .5170 .0672 .3639 .2972 .5232 .0696 .4668 .3465 B *1977 .4368 -.1666 .1436 -.0567 .4420 -.1726 .1842 -.0662 C *1977 .2865 -.3179 -.0956 -.2200 .2899 -.3294 -.1227 -.2566 D *1977 -.0592 -.3746 -.2103 -.2518 -.0599 -.3881 -.2698 -.2937 E *1977 -.3058 -.3456 -.0734 .3711 -.3095 -.3581 -.0941 .4327 A *1988 .0736 .6755 -.2493 .0949 .0745 .6998 -.3198 .1107 B *1988 -.0112 .3869 .0001 -.1328 -.0113 .4008 .0001 -.1548 C *1988 -.1147 .1015 -.1034 -.3687 -.1161 .1052 -.1326 -.4299 D *1988 -.3648 -.0385 .2266 -.0835 -.3691 -.0399 .2907 -.0974 E *1988 -.4583 .0121 -.0022 .3504 -.4637 .0126 -.0028 .4086 SPEC AX1 SPEC AX2 SPEC AX3 SPEC AX4 ENVI AX1 ENVI AX2 ENVI AX3 ENVI AX4 pH88 1.0000 Waterd88 -.8578 1.0000 Waterdep -.5873 .6847 1.0000 A *1977 .2699 -.3128 -.4571 1.0000 B *1977 .3239 -.2208 -.3941 -.1111 1.0000 C *1977 .0180 -.0828 -.2996 -.1111 -.1111 1.0000 D *1977 -.2250 .1472 -.1422 -.1111 -.1111 -.1111 1.0000 E *1977 -.3869 .4692 .0783 -.1111 -.1111 -.1111 -.1111 1.0000 A *1988 .2699 -.3128 .0288 -.1111 -.1111 -.1111 -.1111 -.1111 B *1988 .3239 -.2208 .0918 -.1111 -.1111 -.1111 -.1111 -.1111 C *1988 .0180 -.0828 .1863 -.1111 -.1111 -.1111 -.1111 -.1111 D *1988 -.2250 .1472 .3437 -.1111 -.1111 -.1111 -.1111 -.1111 E *1988 -.3869 .4692 .5642 -.1111 -.1111 -.1111 -.1111 -.1111 pH88 Waterd88 Waterdep A *1977 B *1977 C *1977 D *1977 E *1977 A *1988 1.0000 B *1988 -.1111 1.0000 C *1988 -.1111 -.1111 1.0000 D *1988 -.1111 -.1111 -.1111 1.0000 E *1988 -.1111 -.1111 -.1111 -.1111 1.0000 A *1988 B *1988 C *1988 D *1988 E *1988 N name (weighted) mean stand. dev. inflation factor 1 SPEC AX1 .0000 .5176 2 SPEC AX2 .0000 .4028 3 SPEC AX3 .0000 .2451 4 SPEC AX4 .0000 .2434 5 ENVI AX1 .0000 .5115 6 ENVI AX2 .0000 .3888 7 ENVI AX3 .0000 .1911 8 ENVI AX4 .0000 .2087 28 pH88 3.8875 .1852 5.0938 29 Waterd88 130.4000 12.6823 10.0393 30 Waterdep 116.9000 18.5227 9.4126 31 A *1977 .1000 .3000 3.6055 32 B *1977 .1000 .3000 3.4176 33 C *1977 .1000 .3000 2.6634 34 D *1977 .1000 .3000 2.1003 35 E *1977 .1000 .3000 .0000 36 A *1988 .1000 .3000 3.6055 37 B *1988 .1000 .3000 3.4176 38 C *1988 .1000 .3000 2.6634 39 D *1988 .1000 .3000 2.1003 40 E *1988 .1000 .3000 .0000 **** Summary **** Axes 1 2 3 4 Total variance Eigenvalues : .268 .162 .060 .059 1.000 Species-environment correlations : .988 .965 .780 .858 Cumulative percentage variance of species data : 26.8 43.0 49.0 54.9 of species-environment relation: 41.3 65.2 71.0 77.8 Sum of all unconstrained eigenvalues 1.000 Sum of all canonical eigenvalues .633 [Mon Jan 19 12:31:43 1998] CANOCO call succeeded