Project background
Urban areas are increasingly recognised as important refuges for a wide range of organisms and many cities are actively trying to increase the availability of habitats. Not only can this support higher levels of local biodiversity, but can also save money and help connect people with nature, improving health and wellbeing. One of the most frequently adopted approaches involves creating wildflower meadows in place of regularly cut amenity grasslands, either through actively sowing wildflower meadows or reducing the frequency of grass cutting. Evidence suggests that this can support greater pollinator and plant diversity, but data is only available for a few urban areas and tends to focus on a relatively small number of taxonomic groups.
This project therefore aims to assess the impacts of different grassland management regimes on urban biodiversity, with a particular focus on the city of Plymouth. The student will work with Plymouth City Council to sample a range of plant and invertebrate taxa in parks around the city of Plymouth where both amenity (regularly cut) grassland and wildflower (less frequently cut) grasslands are present in close proximity. Through extensive sampling of these habitats, they will test the prediction that wildflower grasslands support higher levels of biodiversity than amenity grasslands, and explore the potential ecological factors that could explain changes in species abundance and diversity. The results of this study will provide valuable information to support the city council in their efforts to increase local biodiversity and better connect communities to nature in their local parks.
More information about the Council’s approach can be found here https://www.plymouth.gov.uk/wildlife-meadows
Key references:
Norton et al. 2019. Urban meadows as an alternative to short mown grassland: effects of composition and height on biodiversity. Ecological applications 29: e01946. https://doi.org/10.1002/eap.1946
Sehrt et al. 2020. Less is more! Rapid increase in plant species richness after reduced mowing in urban grasslands. Basic & Applied ecology 42: 47-53. https://doi.org/10.1016/j.baae.2019.10.008
