Rescue data as an alternative for assessing trends and phenological changes in two invasive parakeet species

Abstract Monitoring population trends of alien species is pivotal to design effective management plans preserve native biodiversity, particularly urban areas, where most populations birds are established. Urban wildlife rescue centers, with personnel trained record species, age and sex each individual brought by the public, may represent a reliable citizen-science based method estimate both local changes in phenology trends. In this work, we analysed records monk ring-necked parakeets comparing area Rome from last 15 years. We also tested whether breeding showed any since start invasion processes. recorded strong correlation between number rescued their trends, thus confirming importance centers monitoring areas. observed shift these parakeet species. The hatching peak for occurred early spring, line previous studies on reproduction but slight increase months evidence As parakeet, our findings support expansion its reproductive season 2006 2020 Rome, chicks currently being seven year. Therefore, data collected through help improving models growth established