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Trait matching of flower visitors and crops predicts fruit set better than trait diversity

In English

Författare

  • Lucas A. Garibaldi
  • Ignasi Bartomeus
  • Riccardo Bommarco
  • Alexandra M. Klein
  • Saul A. Cunningham
  • Marcelo A. Aizen
  • Virginie Boreux
  • Michael P. D. Garratt
  • Luisa G. Carvalheiro
  • Claire Kremen
  • Carolina L. Morales
  • Christof Schueepp
  • Natacha P. Chacoff
  • Breno M. Freitas
  • Vesna Gagic
  • Andrea Holzschuh
  • Björn Klatt
  • Kristin M. Krewenka
  • Smitha Krishnan
  • Margaret M. Mayfield
  • Iris Motzke
  • Mark Otieno
  • Jessica Petersen
  • Simon G. Potts
  • Taylor H. Ricketts
  • Maj Rundlöf
  • Amber Sciligo
  • Palatty Allesh Sinu
  • Ingolf Steffan-Dewenter
  • Hisatomo Taki
  • Teja Tscharntke
  • Carlos H. Vergara
  • Blandina F. Viana
  • Michal Woyciechowski
Visa allt

Summary, in English

Understanding the relationships between trait diversity, species diversity and ecosystem functioning is essential for sustainable management. For functions comprising two trophic levels, trait matching between interacting partners should also drive functioning. However, the predictive ability of trait diversity and matching is unclear for most functions, particularly for crop pollination, where interacting partners did not necessarily co-evolve. World-wide, we collected data on traits of flower visitors and crops, visitation rates to crop flowers per insect species and fruit set in 469 fields of 33 crop systems. Through hierarchical mixed-effects models, we tested whether flower visitor trait diversity and/or trait matching between flower visitors and crops improve the prediction of crop fruit set (functioning) beyond flower visitor species diversity and abundance. Flower visitor trait diversity was positively related to fruit set, but surprisingly did not explain more variation than flower visitor species diversity. The best prediction of fruit set was obtained by matching traits of flower visitors (body size and mouthpart length) and crops (nectar accessibility of flowers) in addition to flower visitor abundance, species richness and species evenness. Fruit set increased with species richness, and more so in assemblages with high evenness, indicating that additional species of flower visitors contribute more to crop pollination when species abundances are similar.Synthesis and applications. Despite contrasting floral traits for crops world-wide, only the abundance of a few pollinator species is commonly managed for greater yield. Our results suggest that the identification and enhancement of pollinator species with traits matching those of the focal crop, as well as the enhancement of pollinator richness and evenness, will increase crop yield beyond current practices. Furthermore, we show that field practitioners can predict and manage agroecosystems for pollination services based on knowledge of just a few traits that are known for a wide range of flower visitor species. Despite contrasting floral traits for crops world-wide, only the abundance of a few pollinator species is commonly managed for greater yield. Our results suggest that the identification and enhancement of pollinator species with traits matching those of the focal crop, as well as the enhancement of pollinator richness and evenness, will increase crop yield beyond current practices. Furthermore, we show that field practitioners can predict and manage agroecosystems for pollination services based on knowledge of just a few traits that are known for a wide range of flower visitor species. Editor's Choice

Publiceringsår

2015

Språk

Engelska

Sidor

1436-1444

Publikation/Tidskrift/Serie

Journal of Applied Ecology

Volym

52

Issue

6

Dokumenttyp

Artikel i tidskrift

Förlag

John Wiley & Sons Inc.

Ämne

  • Ecology

Nyckelord

  • agroecosystems
  • body size
  • ecosystem functioning
  • ecosystem services
  • mouthpart length
  • nectar accessibility
  • pollination
  • trait evenness
  • trait richness

Status

Published

Projekt

  • LInking farmland Biodiversity to Ecosystem seRvices for effective

Forskningsgrupp

  • Biodiversity and Conservation Science

ISBN/ISSN/Övrigt

  • ISSN: 1365-2664