Research data supporting "The relationship between Mute Swan Cygnus olor population trends in Great Britain and environmental change"

.csv file containing the environmental and swan population change used in the regional analyses of Ki et al. 2023, Bird Study. These values were derived from raw values obtained from published sources cited in the main text. Abstract of Ki et al. 2023, Bird Study: Identifying environmental changes that influence the abundance and distribution of wild species is necessary for the development of effective conservation policy and practice (Baillie 2001). Several drivers of change often act simultaneously on a population, and it is sometimes difficult to quantify their relative importance (Green 1995, 2002; Bowler et al. 2018). For example, correlative analyses of temporal variation in population change within a large geographical area may identify drivers different from those identified when the population changes and drivers are analysed at smaller spatial scales.