Adult females from low quality territories are significantly less likely to reproduce as they age.

<p>The relationship between probability of reproduction and maternal minimum age (<i>mmage</i>) for the four levels of territory quality (<i>TQ</i>_<i>4</i>). Colours denote <i>TQ</i>_<i>4</i> where blue = 1, green = 2, orange = 3 and red = 4. Lines present predictions and shading denotes areas within the 95% prediction intervals, averaged from the top set of GLMM models.