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Table 4 Results of two-factorial crossed ANOVA analysis testing for differences in infection levels of the acanthocephalan P. botulus in eiders (S. mollissim a)

From: Parasites in the northern Wadden Sea: a conservative ecosystem component over 4 decades

 

dF

MS

F

P

Time

1

0.08

0.13

0.72

Age/sex

2

15.94

24.06

<0.001

Time × age/sex

2

0.38

0.59

0.56

Error

95

0.67

  
  1. No. of individuals investigated––1972–1976: adult male (17), adult female (8), juveniles (10); 1993–1998: adult male (31), adult female (17), juvenile (18)
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Helgoland Marine Research

ISSN: 1438-3888

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