Ecological Archives E082-034-A1

Gilles Gauthier, Roger Pradel, Stéphane Menu, and Jean-Dominique Lebreton. 2001. Seasonal survival of Greater Snow Geese and effect of hunting under dependence in sighting probability. Ecology 82:3105-3119.

Appendix A.

Table A1. Results of Test 2.Ct of RELEASE transformed in z values (see methods) separated by years and seasons. This tests whether birds seen on any given occasion are more or less likely to be seen at the next occasion compared to those not seen then. This is a test of short-term dependence in sighting probabilities, i.e. between consecutive events (positive sign = positive dependence).

   
Spring to summer
Summer to autumn
Autumn to spring
Year
Group
z
P
z
P
z
P
1990
1
       
-
 
1991
1
-
 
1.454
0.146
0.0
1.000
1992
1
-
 
5.184
<0.001
1.517
0.130
1993
1
-0.593
0.553
-0.245
0.807
1.548
0.122
1994
1
0.374
0.709
0.325
0.746
-1.129
0.259
1995
1
0.010
0.994
-0.604
0.546
0.392
0.695
 
2
       
0.873
0.382
1996
1
0.464
0.643
0.388
0.696
2.204
0.028
 
2
-0.830
0.407
2.490
0.013
1.255
0.210
1997
1
-0.501
0.616
-0.699
0.425
1.221
0.262
 
2
0.567
0.571
0.798
0.570
1.484
0.138
Total
1
-0.110
0.912
2.193
0.028
2.137
0.033
 
2
-0.185
0.853
2.325
0.020
2.085
0.037
 
1+2
-0.192
0.848
3.030
0.002
2.930
0.003

Group 1: standard neck bands (used 1990-1994); Group 2: UV-resistant neck bands (used 1995-1997).

A dash (-) = not enough data.



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