USGS - science for a changing world

Northern Prairie Wildlife Research Center

  Home About NPWRC Our Science Staff Employment Contacts Common Questions About the Site

Waterfowl Communities in the Northern Plains

Table 4


Table 4. Correlations Coefficients and P Values between Residuals from Best-fitting Model for Each Species and Count of Other Species.

___________________________________________________________________________________________________________________________

                                            Correlation coefficient with count of species
                                         ___________________________________________________

Modeled                          American  Gr.- w.  Bl.- w.   Northern    Northern                         Lesser  Ruddy
species       Mallard   Gadwall   wigeon    teal     teal     shoveler    pintail    Redhead   Canvasback  scaup   duck
___________________________________________________________________________________________________________________________

Mallard         ---        0.41    -0.01     0.09     0.14      0.20        0.12      0.19      -0.03      -0.07   -0.05
                           0.05     0.96     0.67     0.51      0.36        0.57      0.37       0.90       0.74    0.83
                                                                                                                        
Gadwall        0.46        ---      0.40     0.41     0.37      0.05        0.47     -0.01      -0.22      -0.23    0.03
               0.02                 0.05     0.04     0.07      0.80        0.02      0.98       0.30       0.27    0.89
                                                                                                                        
American       0.13        0.37      ---     0.65     0.10     -0.06        0.46     -0.46      -0.31      -0.30   -0.38
Wigeon         0.55        0.07              0.01     0.64      0.79        0.02      0.02       0.13       0.15    0.06
                                                                                                                        
Blue-winged    0.18        0.34     0.15    -0.01      ---      0.03       -0.00     -0.04      -0.23      -0.48   -0.02
Teal           0.40        0.11     0.48     0.96               0.90        0.99      0.84       0.29       0.02    0.94
                                                                                                                        
Northern       0.23        0.05    -0.04    -0.10     0.08       ---        0.29      0.38       0.43       0.03    0.24
shoveler       0.27        0.83     0.85     0.65     0.69                  0.16      0.06       0.03       0.87    0.24
                                                                                                                        
Northern       0.28        0.48     0.41     0.34     0.25      0.50         ---      0.19       0.36       0.03    0.33
pintail        0.17        0.02     0.04     0.10     0.23      0.01                  0.36       0.08       0.90    0.10
                                                                                                                        
Redhead        0.33        0.33    -0.27    -0.21     0.07      0.41        0.04       ---       0.21       0.17    0.55
               0.11        0.11     0.21     0.33     0.74      0.05        0.86                 0.33       0.43    0.01
                                                                                                                        
Canvasback     0.02       -0.35    -0.37    -0.53    -0.13      0.37       -0.07      0.40        ---       0.37    0.41
               0.93        0.09     0.08     0.01     0.53      0.08        0.74      0.05                  0.08    0.05
                                                                                                                        
Lesser scaup   0.08       -0.22    -0.29    -0.30    -0.42      0.11       -0.14      0.35       0.56        ---    0.27
               0.72        0.29     0.16     0.16     0.04      0.62        0.53      0.10       0.01               0.21
                                                                                                                        
Ruddy duck     0.03        0.37    -0.23    -0.05     0.38      0.36        0.27      0.46       0.29       0.07     ---
               0.87        0.07     0.28     0.79     0.06      0.07        0.18      0.02       0.16       0.74
___________________________________________________________________________________________________________________________ 

Previous Section -- Table 3
Return to Contents
Next Section -- Table 5

Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo USA.gov logo U.S. Department of the Interior | U.S. Geological Survey
URL: http://www.npwrc.usgs.gov/resource/birds/watercom/table4.htm
Page Contact Information: Webmaster
Page Last Modified: Friday, 01-Feb-2013 20:02:27 EST
Reston, VA [vaww55]