Synanthropic common birds in a Mediterranean urban park: no significant local change along a medium-term time range (2006-2023)
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In this note, we report multi-year trends in abundance over a medium-term period (2006-2023) for 8 species belonging to a guild of common synanthropic breeding birds breeding in an urban park in central Tyrrhenian Italy. Despite fluctuations in mean values, none of the species showed any local significant change during the survey period. Excluding possible sampling biases, the absence of significant oscillations in mean abundances can be traced back to the specific context of the study area: the complex landscape mosaics and traditional agricultural management typical of the Tuscia Laziale, adjacent to a Medieval historical town with a low rate of urbanization. These factors can allow the maintenance of constant abundances over medium to long periods, even for two species in numerical decline at a national/regional scale (Passer italiae, Carduelis carduelis). Further analyses of these medium-term trends in other urban parks are necessary to compare whether these patterns at the local scale match the trends at the national scale.
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