Habitat loss is leading to smaller fragmented populations, increasing their susceptibility to stochasticity. Quantifying the effects of demographic and environmental stochasticity on population dynamics and the contribution of selection versus drift to phenotypic change is essential to assess the potential consequences of environmental change. We examined how stochasticity influenced population growth and body mass changes ove...

Dispersal has a crucial role determining ecoevolutionary dynamics through both gene flow and population size regulation. However, to study dispersal and its consequences, one must distinguish immigrants from residents. Dispersers can be identified using telemetry, capture‐mark‐recapture (CMR) methods, or genetic assignment methods. All of these methods have disadvantages, such as high costs and substantial field efforts needed...

Understanding the genetic architecture of quantitative traits can provide insights into the mechanisms driving phenotypic evolution. Bill morphology is an ecologically important and phenotypically variable trait, which is highly heritable and closely linked to individual fitness. Thus, bill morphology traits are suitable candidates for gene mapping analyses. Previous studies have revealed several genes that may influence bill...