Statistical Analysis of Absence of Band on P5

c 2 Test

Major groupings:

 

Sample

%P5 without compl-ete band

South-ern

atlantis

Iberian

atlantis

Atl-Med

Intersection

atlantis/micha-hellis

SW Spain

micha-hellis

Cam-argue

micha-hellis

N Spain

cant-abricans

SW England argen-teus

Southern

atlantis

251

24.7

X

-

1.8

0.05

4.4

(-

2.2)

0.01

22.4

(-

0.1)

0.01

22.5

Iberian

atlantis

98

17.3

 

X

-

1.3

(-

0.7)

 

-

0.9

0.01

26.8

Atl-Med

Intersection

atlantis/micha-hellis

38

7.4

 

 

X

(-

0.1)

(-

3.6)

(-

3.2)

0.01

25.4

SW Spain

michahellis

17

5.9

 

 

 

X

(-

0.7)

(-

2.1)

0.01

15.6

Camargue

michahellis

79

0.0

 

 

 

 

X

(0.01

20.2)

(0.01

64.8)

N Spain

cantabricans

16

31.3

 

 

 

 

 

X

0.05

5.4

SW England argenteus

23

73.9

 

 

 

 

 

 

X

W Canaries vs E Canaries:

 

Sample

%P5 no band

W Canary

E Canary

W Canary

63

20.5

X

-

0.0

E Canary

101

22.7

 

X

Note:

Significance is shown above the chi-square test-result in each cell; degree of freedom =1 in each case; ( 3.84 <= chi-square < 6.63) for significance 0.05 (shown in green) and chi-square >= 6.63 for significance 0.01 (shown in red). Brackets indicate that one or more expected values in the test was less than the recommended 5. Statistics following Statistics for Ornithologists, Jim Fowler and Louis Cohen, BTO Guide 22 (undated).

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