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       :   spid_spe.dta                          
 Covariable data    :                                         
 Environmental data :   spid_env.dta                          
 Initialization file:                                         

 Forward selection of envi. variables =    0
 Scaling of ordination scores         =   -1
 Diagnostics                          =    3

 File   :   spid_spe.dta                          
 Title  : VAN DER AART AND SMEENK-ENSERINK (1975) NETH.J.ZOOL.:HUNTING SPIDERS            
 Format :  (I6,2X, 12F4.0)                                                     
 No. of couplets of species number and abundance per line :    0


 No samples omitted
 Number of samples            28
 Number of species            12
 Number of occurrences       182


 File  :   spid_env.dta                          
 Title : VAN DER AART AND SMEENK-ENSERINK (1975) NETH.J.ZOOL. SPIDERS-DUNE VARS.        
 Format :  (I3,6F8.0)                                                          
 No. of environmental variables :     6


 No interaction terms defined


 Squareroot-transformation of species data
 No species-weights specified
 No  sample-weights specified
 No downweighting of rare species
 Squareroot-transformation of species data

 No. of active  samples:     28
 No. of passive samples:      0
 No. of active  species:     12

 Total inertia in species data=
 Sum of all eigenvalues of CA =    1.14932

 
1
 **** Weighted correlation matrix (weight = sample total) ****
 
 SPEC AX1	  1.0000
 SPEC AX2	   .0273	  1.0000
 SPEC AX3	   .0666	   .0471	  1.0000
 SPEC AX4	  -.0174	   .0397	  -.2614	  1.0000
 ENVI AX1	   .9591	   .0000	   .0000	   .0000	  1.0000
 ENVI AX2	   .0000	   .9343	   .0000	   .0000	   .0000	  1.0000
 ENVI AX3	   .0000	   .0000	   .6498	   .0000	   .0000	   .0000	  1.0000
 ENVI AX4	   .0000	   .0000	   .0000	   .7824	   .0000	   .0000	   .0000	  1.0000
 WaterCon	  -.8925	  -.0793	   .0741	   .1267	  -.9306	  -.0849	   .1141	   .1620
 BareSand	   .6960	   .0587	   .2908	   .2287	   .7257	   .0628	   .4475	   .2923
 FallTwig	  -.4076	   .7269	  -.0845	   .1889	  -.4250	   .7780	  -.1300	   .2415
 CoveMoss	   .6604	  -.2699	  -.3926	   .1840	   .6886	  -.2889	  -.6042	   .2352
 CoveHerb	  -.3115	  -.7288	   .0982	  -.3173	  -.3248	  -.7801	   .1511	  -.4055
 Refl Lux	   .6143	  -.5477	  -.0812	  -.3158	   .6406	  -.5863	  -.1249	  -.4037

         	SPEC AX1	SPEC AX2	SPEC AX3	SPEC AX4	ENVI AX1	ENVI AX2	ENVI AX3	ENVI AX4

 WaterCon	  1.0000
 BareSand	  -.5146	  1.0000
 FallTwig	   .4306	  -.0909	  1.0000
 CoveMoss	  -.6829	   .2832	  -.3908	  1.0000
 CoveHerb	   .2694	  -.2795	  -.5607	  -.1417	  1.0000
 Refl Lux	  -.5508	   .2934	  -.7576	   .5558	   .3368	  1.0000

         	WaterCon	BareSand	FallTwig	CoveMoss	CoveHerb	Refl Lux

    N	name	   (weighted) mean	   stand. dev.	inflation factor

    1	SPEC AX1	         .0000	        1.1190
    2	SPEC AX2	         .0000	         .5583
    3	SPEC AX3	         .0000	         .3995
    4	SPEC AX4	         .0000	         .1779
    5	ENVI AX1	         .0000	        1.0732
    6	ENVI AX2	         .0000	         .5216
    7	ENVI AX3	         .0000	         .2596
    8	ENVI AX4	         .0000	         .1392
    1	WaterCon	        2.6694	         .6842	        3.4777
    2	BareSand	         .8275	        1.3424	        1.4986
    3	FallTwig	        1.1143	        1.7075	        3.9478
    4	CoveMoss	        1.8996	        1.3230	        2.1570
    5	CoveHerb	        3.8211	        1.0809	        2.8834
    6	Refl Lux	        2.4623	        1.3125	        3.2310


 **** Summary ****

 Axes                               	     1	     2	     3	     4	 Total inertia

 Eigenvalues                       :	  .535	  .214	  .063	  .019	        1.149
 Species-environment correlations  :	  .959	  .934	  .650	  .782
 Cumulative percentage variance
    of species data                :	  46.6	  65.2	  70.7	  72.3
    of species-environment relation:	  63.2	  88.5	  95.9	  98.2

 Sum of all unconstrained eigenvalues      	     	      	      	      	  1.149
 Sum of all canonical     eigenvalues      	     	      	      	      	   .847