How native and non-native plants affect endangered plant species in cities

Research in the Journal of Applied Ecology has identified threats to endangered plants in an urban area, generating information that can be used to guide effective conservation strategies across major cities. Investigators in Germany analyzed data on 1,231 populations of 201 endangered plant species within Berlin's Flora Protection Program. Threats were categorized and their relative importance was quantified at both population and species levels, and across habitat types.