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Detecting the distribution of and public attitudes to charismatic alien species based on media coverage
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Charismatic species are often reported by the media,providing information for detecting population status and public perception.To identify the number and distribution of free-living Black Swan(Cygnus atratus),a charis-matic alien species in Chinese mainland and to detect the public and the media attitudes to the species,we analyzed the reports and emotional tendency from media coverage in 2000-2022 using manual reading,crawler extraction and latent Dirichlet allocation.A total of 6654 Black Swans were reported at 711 sites,including 147 individuals at 30 nature reserves.Successful breeding was reported at one-fourth of the total sites,including five nature reserves.The proportion of positive emotional tendency to Black Swans was overwhelming in the reports and was higher than that to alien species in general,suggesting that the public and the media are unaware of the risk of biological invasion.Effective management of invasive species requires the media clarifies the invasion risk of charismatic alien species.Promoting the unity between the harmfulness of abstract concept of alien species and the charisma of a specific alien species among the public help effective management.
Shanghai Institute of Infectious Disease and Biosecurity,Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering,National Observations and Research Station for Wetland Ecosystems of the Yangtze Estuary,and Institute of Eco-Chongming(SIEC),School of Life Sciences,Fudan University,Shanghai,200433,China
Yunnan Key Laboratory of Plant Reproductive Adaptation and Evolutionary Ecology and Centre for Invasion Biology,Institute of Biodiversity,School of Ecology and Environmental Sci
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