Fig. 4
From: Is multiple nest building an adequate strategy to cope with inter-species nest usurpation?
Annual territory productivity (0–4 chicks per season, N = 433 territories) depending on (a) geese interactions on territory level: no geese present, geese present, nest harassment and nest usurpation (‘territory g-score’ ranging from 0–3); (b) the number of nests on territory (where 3 = 3 or more nests; black bars on x-axis represent sample sizes); and, (c) the interaction term between the g-score and the number of nests on territory. Figure based on predicted values of GLMMs, 95 % CIs in shaded grey or error bars; model details are shown in Table 2