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Towns with older human population and warm winters have a greater presence of non-native species in urban parks

A study led by the Doñana Biological Station (CSIC) and the University of Cádiz has analized the relationships between traits of ornamental woody species and climatic and socioeconomic variables.
The scientists evaluate 46 urban parks from 23 Spanish cities. 400 out of 486 species recorded in the study are non-native