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The effectiveness of flower strips and hedgerows on pest control, pollination services and crop yield: a quantitative synthesis

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  • Matthias Albrecht
  • David Kleijn
  • Neal M. Williams
  • Matthias Tschumi
  • Brett R. Blaauw
  • Riccardo Bommarco
  • Alistair J. Campbell
  • Matteo Dainese
  • Francis A. Drummond
  • Martin H. Entling
  • Dominik Ganser
  • G. Arjen de Groot
  • Dave Goulson
  • Heather Grab
  • Hannah Hamilton
  • Felix Herzog
  • Rufus Isaacs
  • Katja Jacot
  • Philippe Jeanneret
  • Mattias Jonsson
  • Eva Knop
  • Claire Kremen
  • Douglas A. Landis
  • Gregory M. Loeb
  • Lorenzo Marini
  • Megan McKerchar
  • Lora Morandin
  • Sonja C. Pfister
  • Simon G. Potts
  • Maj Rundlöf
  • Hillary Sardiñas
  • Amber Sciligo
  • Carsten Thies
  • Teja Tscharntke
  • Eric Venturini
  • Eve Veromann
  • Ines M.G. Vollhardt
  • Felix Wäckers
  • Kimiora Ward
  • Megan Woltz
  • Steve Wratten
  • Louis Sutter
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<mark>Journal publication date</mark>1/10/2020
<mark>Journal</mark>Ecology Letters
Issue number10
Volume23
Number of pages11
Pages (from-to)1488-1498
Publication StatusPublished
Early online date18/08/20
<mark>Original language</mark>English

Abstract

Floral plantings are promoted to foster ecological intensification of agriculture through provisioning of ecosystem services. However, a comprehensive assessment of the effectiveness of different floral plantings, their characteristics and consequences for crop yield is lacking. Here we quantified the impacts of flower strips and hedgerows on pest control (18 studies) and pollination services (17 studies) in adjacent crops in North America, Europe and New Zealand. Flower strips, but not hedgerows, enhanced pest control services in adjacent fields by 16% on average. However, effects on crop pollination and yield were more variable. Our synthesis identifies several important drivers of variability in effectiveness of plantings: pollination services declined exponentially with distance from plantings, and perennial and older flower strips with higher flowering plant diversity enhanced pollination more effectively. These findings provide promising pathways to optimise floral plantings to more effectively contribute to ecosystem service delivery and ecological intensification of agriculture in the future.