Estimating Density Dependence, Environmental Variance, and Long-Term Selection on a Stage-Structured Life HistoryThe extended Moran effect and large-scale synchronous fluctuations in the size of great tit and blue tit populationsSpatial and temporal variation in the relative contribution of density dependence, climate variation and migration to fluctuations in the size of great tit populationsForms of density regulation and (quasi-) stationary distributions of population sizes in birds