Table 1 Interspecific interaction matrix on poultry farms. The probability that a flock with birds of one species (row) will be in present in the same farm as a flock with birds of another species (column)

1

0.45

0.41

0.23

0.06

0.04

0.05

0.81

1

0.51

0.27

0.04

0.04

0.06

0.9

0.62

1

0.29

0.04

0.03

0.09

0.92

0.6

0.54

1

0.14

0.05

0.15

0.98

0.35

0.31

0.55

1

0

0.09

0.89

0.57

0.29

0.31

0

1

0

0.82

0.57

0.71

0.63

0.1

0

1