Biodiversity promotes urban ecosystem functioning

doi:10.1111/ecog.07366

Biodiversity promotes urban ecosystem functioning

2024-07-18

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DOI：10.1111/ecog.07366

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The proportion of people living in urban areas is growing globally. Understanding how to manage urban biodiversity, ecosystem functions, and ecosystem services is becoming more important. Biodiversity can increase ecosystem functioning in non-urban systems. However, few studies have reviewed the relationship between biodiversity and ecosystem functioning in urban areas, which differ in species compositions, abiotic environments, food webs, and turnover rates. We reviewed evidence of biodiversity-ecosystem functioning relationships in urban environments and assessed factors that influence the relationship direction. Based on 70 studies, relationships between biodiversity and ecosystem functioning were more positive than negative in urban areas, especially for pollination and nutrient cycling and retention. Surprisingly, positive and negative relationships between biodiversity and biomass production and storage were equally not statistically different, perhaps due to extensive plant management in urban areas. The number of studies and geographic coverage of our review was still insufficient to provide a general predictive framework for when biodiversity positively impacts ecosystem functioning. We identify gaps and opportunities to improve urban biodiversity-ecosystem functioning research and discuss how our findings can improve urban green space management.

Keywords:

biodiversity

city

complementarity

ecosystem functioning

green space management

selection effects

urban

Biodiversity promotes urban ecosystem functioning

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