University of Sussex
Browse
Griffiths-Lee2022_Article_SownMini-meadowsIncreasePollin.pdf (2.58 MB)

Sown mini-meadows increase pollinator diversity in gardens

Download (2.58 MB)
Version 2 2023-06-12, 07:42
Version 1 2023-06-10, 02:46
journal contribution
posted on 2023-06-12, 07:42 authored by Janine Griffiths-Lee, Beth NichollsBeth Nicholls, Dave GoulsonDave Goulson
Habitat loss and fragmentation are considered the foremost threats in pollinator decline, and in England and Wales, 97% of wildflower meadows were lost by 1984. The value of creating flower-rich margins in agricultural environments is established, yet there is growing potential to support pollinator populations in urban landscapes. We used citizen science to investigate the effectiveness of small 4m2 sown wildflower ‘mini-meadows’ in UK gardens and allotments in recruiting beneficial insects. Participants were allocated one of three treatment groups: Mix 1 (commercially available ‘meadow mix’); Mix 2 (formulated based on existing literature on pollinator foraging preferences); or Control (no additional wildflowers). All participants conducted insect sampling over two years using standardised pan and sticky trap methods May–August. Samples were returned for identification by trained specialists. Mini-meadows provided resource-rich habitats, increasing wild bee richness and supporting on average 111% more bumblebees, 87% more solitary bees and 85% more solitary wasps in the year following seed-sowing, compared to Control plots. The wildflower mixes were also taxon-specific in their attractiveness. Mix 1 attracted more solitary bees and bumblebees, whereas Mix 2 attracted more solitary wasps. There was no significant difference in the abundance of hoverflies between treatments. Higher abundance of solitary wasps and bees caught amongst the mini-meadow was perhaps due to shorter foraging ranges.

History

Publication status

  • Published

File Version

  • Published version

Journal

Journal of Insect Conservation

ISSN

1366-638X

Publisher

Springer

Issue

2

Volume

26

Page range

299-314

Department affiliated with

  • Evolution, Behaviour and Environment Publications

Research groups affiliated with

  • Sussex Sustainability Research Programme Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2022-03-02

First Open Access (FOA) Date

2022-04-11

First Compliant Deposit (FCD) Date

2022-03-02

Usage metrics

    University of Sussex (Publications)

    Categories

    No categories selected

    Licence

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC