Program CANOCO Version 4.0 September 1997 - written by Cajo J.F. ter Braak Copyright (c) 1988-1997 Centre for Biometry Wageningen, 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 = 5 *** Data files *** Species data : table01.dta Covariable data : Environmental data : table02.dta Initialization file: Forward selection of envi. variables = 0 Scaling of ordination scores = 2 Diagnostics = 3 File : table01.dta Title : Dune meadow data: species data (Table 0.1) Format : (I5,8(I5,F4.0)) No. of couplets of species number and abundance per line : 8 No samples omitted Number of samples 20 Number of species 30 Number of occurrences 197 File : table02.dta Title : Dune meadow data: environmental data (Table 0.2) Format : (I5,F6.0,7F3.0) No. of environmental variables : 8 No interaction terms defined No transformation of species data No species-weights specified No sample-weights specified No downweighting of rare species No. of active samples: 20 No. of passive samples: 0 No. of active species: 30 Total inertia in species data= Sum of all eigenvalues of CA = 2.11526 ****** Collinearity detected when fitting variable 6 ****** 1 **** Weighted correlation matrix (weight = sample total) **** SPEC AX1 1.0000 SPEC AX2 .1289 1.0000 SPEC AX3 -.0903 -.0175 1.0000 SPEC AX4 -.1443 -.5510 .1478 1.0000 ENVI AX1 .8844 .0000 .0000 .0000 1.0000 ENVI AX2 .0000 .7070 .0000 .0000 .0000 1.0000 ENVI AX3 .0000 .0000 .8173 .0000 .0000 .0000 1.0000 ENVI AX4 .0000 .0000 .0000 .0000 .0000 .0000 .0000 .0000 SF -.3226 .6382 .1867 .0000 -.3648 .9026 .2285 .0000 BF -.1731 -.4259 .6324 .0000 -.1957 -.6024 .7738 .0000 HF -.3317 -.3027 -.6720 .0000 -.3751 -.4281 -.8222 .0000 NM .8835 .0207 -.0298 .0000 .9989 .0293 -.0364 .0000 SPEC AX1 SPEC AX2 SPEC AX3 SPEC AX4 ENVI AX1 ENVI AX2 ENVI AX3 ENVI AX4 SF 1.0000 BF -.2956 1.0000 HF -.4375 -.3049 1.0000 NM -.3463 -.2413 -.3572 1.0000 SF BF HF NM N name (weighted) mean stand. dev. inflation factor 1 SPEC AX1 .0000 1.1307 2 SPEC AX2 .0000 1.4144 3 SPEC AX3 .0000 1.2236 4 SPEC AX4 .0000 1.0000 5 ENVI AX1 .0000 1.0000 6 ENVI AX2 .0000 1.0000 7 ENVI AX3 .0000 1.0000 8 ENVI AX4 .0000 .0000 3 SF .2978 .4573 1.6508 4 BF .1708 .3763 1.4717 5 HF .3109 .4629 1.6610 6 NM .2204 .4145 .0000 **** Summary **** Axes 1 2 3 4 Total inertia Eigenvalues : .319 .182 .103 .447 2.115 Species-environment correlations : .884 .707 .817 .000 Cumulative percentage variance of species data : 15.1 23.7 28.5 49.7 of species-environment relation: 52.8 83.0 100.0 .0 Sum of all unconstrained eigenvalues 2.115 Sum of all canonical eigenvalues .604 1 *** Unrestricted permutation *** Seeds: 23239 945 Number of permutations= 199 *** Permutation under reduced model *** No F-ratio F-ratio of axis 1 Data 2.131 2.838 1 1.023 1.505 2 1.131 1.933 3 1.235 2.414 4 1.238 1.844 5 .684 .970 6 .945 1.513 7 .971 1.415 8 .909 1.369 9 1.405 2.016 10 1.071 1.934 11 .752 1.064 12 .602 1.015 13 .836 1.111 14 1.428 2.590 15 1.042 1.675 16 .838 1.381 17 1.601 3.237 18 .913 1.047 19 1.220 2.152 20 1.079 1.829 21 .881 1.277 22 .930 1.225 23 .825 1.402 24 .932 1.303 25 2.009 3.238 26 .982 1.753 27 .936 1.624 28 .772 1.280 29 .986 1.586 30 1.780 3.226 31 .829 1.091 32 .881 1.454 33 .816 1.155 34 1.679 2.563 35 1.390 2.044 36 1.164 2.047 37 .669 .940 38 1.436 2.146 39 .629 .749 40 .858 1.165 41 .789 1.008 42 1.375 1.699 43 .695 .956 44 1.140 1.792 45 .885 1.351 46 1.121 1.882 47 1.179 1.753 48 1.186 1.527 49 .704 1.026 50 .714 .890 51 1.155 2.312 52 .855 1.153 53 1.394 2.332 54 .840 1.057 55 1.180 1.646 56 .947 1.546 57 .701 .988 58 .899 1.328 59 .904 1.441 60 .946 1.305 61 1.144 1.759 62 1.579 2.079 63 .968 1.259 64 1.185 2.067 65 .619 .967 66 .871 1.317 67 2.016 3.541 68 .889 1.326 69 1.412 2.388 70 .844 1.383 71 1.023 1.468 72 1.303 2.612 73 .961 1.542 74 .989 1.562 75 2.198 3.259 76 .925 1.655 77 1.105 1.465 78 .837 1.297 79 .698 .933 80 1.307 2.041 81 .809 1.137 82 .955 1.206 83 1.112 1.976 84 .931 1.543 85 1.129 1.533 86 .795 1.013 87 1.543 2.641 88 1.173 1.640 89 1.249 2.052 90 .938 1.836 91 .825 1.289 92 .973 1.151 93 .713 1.048 94 1.179 1.502 95 .636 .778 96 .835 1.436 97 1.065 1.648 98 .579 .746 99 .957 1.553 100 1.099 1.757 101 1.253 2.391 102 1.330 2.190 103 .993 2.148 104 1.241 2.078 105 .732 .904 106 1.777 2.607 107 .979 1.629 108 .934 1.556 109 1.221 1.943 110 .670 1.128 111 1.072 1.901 112 1.518 2.356 113 .669 .924 114 .596 .708 115 .751 .886 116 1.473 2.333 117 .877 1.294 118 .888 1.393 119 .853 1.390 120 1.228 1.816 121 1.281 1.850 122 .751 1.141 123 1.399 2.232 124 .743 1.082 125 .952 1.453 126 .936 1.380 127 .835 1.081 128 .910 1.196 129 .809 1.033 130 1.665 2.378 131 1.576 2.318 132 1.061 1.482 133 .855 1.197 134 .775 1.345 135 1.070 1.544 136 .939 1.554 137 1.159 1.620 138 1.215 1.696 139 1.071 1.427 140 1.689 2.544 141 1.033 1.823 142 1.024 1.315 143 .840 1.346 144 .740 1.178 145 .784 .955 146 .890 1.095 147 .749 .933 148 .913 1.133 149 .797 1.121 150 1.514 2.500 151 1.259 2.007 152 1.281 1.938 153 1.289 1.463 154 1.152 1.573 155 .931 1.614 156 1.214 1.836 157 .660 1.213 158 .884 1.242 159 .872 1.158 160 1.129 1.378 161 .647 .914 162 1.009 1.572 163 .843 1.358 164 .952 1.355 165 .934 1.086 166 .802 1.461 167 .674 .958 168 .901 1.172 169 .799 1.032 170 .680 .907 171 1.029 1.339 172 .649 1.014 173 .763 .973 174 .935 1.271 175 1.335 1.978 176 .918 1.230 177 1.546 2.740 178 1.404 2.500 179 .777 1.126 180 .595 .744 181 1.315 1.610 182 .793 1.481 183 1.067 1.505 184 1.148 1.652 185 .680 .976 186 .967 1.147 187 .991 1.213 188 .963 1.680 189 .747 1.103 190 1.058 1.540 191 .945 1.736 192 .831 1.203 193 .830 .959 194 1.224 1.852 195 .853 1.588 196 .814 .969 197 1.134 1.641 198 .983 1.111 199 .908 1.348 P-value .010 .030 (number of permutations= 199) **** Summary of Monte Carlo test **** Test of significance of first canonical axis: eigenvalue = .32 F-ratio = 2.84 P-value = .03 Overall test : Trace = .60 F-ratio = 2.13 P-value = .01 ( 199 permutations under reduced model)