Climate Data of the Anzali Wetland during the 2007-2021 study period.xlsx

The aim of this manuscript is to compare the wintering population trends of the Dalmatian Pelican and Great White Pelican at the Anzali International Wetland over a 15-year period (2007-2021) regarding climate factors. The study also aims to determine the climate parameters with the highest impact on the wintering populations of these two species. The findings of this research have shown us how the population trends of the species are correlated to the relevant climate parameters and how they interact. In addition, the results of different statistical analyses in R programming language have indicated the most effective climate parameters, and the trend analysis has also defined the 15-years trends of both species` populations.