Inter-annual variation in the numbers of territories for Short-toed eagle and Golden eagle in Dadia-Lefkimi-Soufli National Park fitting Generalised Additive Models. Population trend modelling is also shown for each species, with cyclic cubic regression (cc) splines used as smoothing terms. a Variation in the number of Short-toed eagle territories fitting a GAM b Predictive GAM for the Short-toed eagle with smoothed terms (cc splines) c Variation in the number of Golden eagle territories fitting a GAM d Predictive GAM for the Golden eagle with smoothed terms (cc splines).

 
 
  Part of: Poirazidis K (2017) Systematic Raptor Monitoring as conservation tool: 12 year results in the light of landscape changes in Dadia-Lefkimi-Soufli National Park. Nature Conservation 22: 17-50. https://doi.org/10.3897/natureconservation.22.20074