Urban greenspaces provide psychological benefits to people, and these benefits increase with biodiversity. A study in Sheffield, UK, found that the psychological well-being of greenspace users is positively correlated with species richness, particularly for plants and birds. Users could accurately perceive species richness for plants but less so for birds and butterflies. The study suggests that managing urban greenspaces to enhance biodiversity can improve human well-being. The research also shows that the number of habitat types in a greenspace is linked to psychological benefits, such as reflection and personal identity. While greenspace area also contributes to well-being, biodiversity and habitat diversity have stronger effects. The findings highlight the importance of biodiversity in urban areas for both ecological and psychological health. The study emphasizes that greenspaces should be managed to maximize biodiversity and ecological complexity to enhance human wellbeing. The results also suggest that cultural differences may influence perceptions of biodiversity, warranting further research in diverse settings. The study was supported by grants and involved collaboration with various institutions and individuals.Urban greenspaces provide psychological benefits to people, and these benefits increase with biodiversity. A study in Sheffield, UK, found that the psychological well-being of greenspace users is positively correlated with species richness, particularly for plants and birds. Users could accurately perceive species richness for plants but less so for birds and butterflies. The study suggests that managing urban greenspaces to enhance biodiversity can improve human well-being. The research also shows that the number of habitat types in a greenspace is linked to psychological benefits, such as reflection and personal identity. While greenspace area also contributes to well-being, biodiversity and habitat diversity have stronger effects. The findings highlight the importance of biodiversity in urban areas for both ecological and psychological health. The study emphasizes that greenspaces should be managed to maximize biodiversity and ecological complexity to enhance human wellbeing. The results also suggest that cultural differences may influence perceptions of biodiversity, warranting further research in diverse settings. The study was supported by grants and involved collaboration with various institutions and individuals.