Table 2 The influence of year and channel slope bottom on the presence and numbers of Common Terns and Little Terns. N = 744.
Species | Effect | Species presence/absence GLZ (logit, binomial) | Number of individuals GLZ (log, Poisson) | ||||
|---|---|---|---|---|---|---|---|
Estimate | W | p | Estimate | W | p | ||
Common Tern | Intercept | − 0.68 | 69.0 | < 0.0001 | 0.17 | 17.7 | < 0.0001 |
Bottom slope (S) | 9.23 | 0.2 | 0.6210 | 0.73 | 0.01 | 0.9132 | |
Year | − 0.26 | 9.6 | 0.0019 | − 0.77 | 364.3 | < 0.0001 | |
Little Tern | Intercept | − 1.04 | 152.6 | < 0.0001 | − 0.36 | 56.7 | < 0.0001 |
Bottom slope (S) | − 0.41 | 4.0 | 0.0447 | − 0.64 | 37.1 | < 0.0001 | |
Year | 0.28 | 11.0 | < 0.0001 | 0.56 | 146.5 | < 0.0001 | |
