Landscape configurational heterogeneity by small-scale agriculture, not crop diversity, maintains pollinators and plant reproduction in western Europe

Annika L. Hass, Urs G. Kormann, Teja Tscharntke, Yann Clough, Aliette Bosem Baillod, Clélia Sirami, Lenore Fahrig, Jean Louis Martin, Jacques Baudry, Colette Bertrand, Jordi Bosch, Lluís Brotons, Françoise Bure, Romain Georges, David Giralt, María Marcos-García, Antonio Ricarte, Gavin Siriwardena, P. Batáry

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

Agricultural intensification is one of the main causes for the current biodiversity crisis. While reversing habitat loss on agricultural land is challenging, increasing the farmland configurational heterogeneity (higher field border density) and farmland compositional heterogeneity (higher crop diversity) has been proposed to counteract some habitat loss. Here, we tested whether increased farmland configurational and compositional heterogeneity promote wild pollinators and plant reproduction in 229 landscapes located in four major western European agricultural regions. High-field border density consistently increased wild bee abundance and seed set of radish (Raphanus sativus), probably through enhanced connectivity. In particular, we demonstrate the importance of crop-crop borders for pollinator movement as an additional experiment showed higher transfer of a pollen analogue along crop-crop borders than across fields or along semi-natural crop borders. By contrast, high crop diversity reduced bee abundance, probably due to an increase of crop types with particularly intensive management. This highlights the importance of crop identity when higher crop diversity is promoted. Our results show that small-scale agricultural systems can boost pollinators and plant reproduction. Agri-environmental policies should therefore aim to halt and reverse the current trend of increasing field sizes and to reduce the amount of crop types with particularly intensive management.

Original languageEnglish
Article number20172242
JournalProceedings of the Royal Society B: Biological Sciences
Volume285
Issue number1872
DOIs
Publication statusPublished - Feb 14 2018

Fingerprint

Raphanus
small-scale farming
plant reproduction
Bees
Western European region
Agriculture
pollinator
pollinators
Crops
Reproduction
Ecosystem
Environmental Policy
agriculture
crop
Biodiversity
crops
Pollen
Seeds
agricultural land
habitat loss

Keywords

  • Bee
  • Compositional heterogeneity
  • Field size
  • Hoverfly
  • Landscape heterogeneity
  • Pollen transfer

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Immunology and Microbiology(all)
  • Environmental Science(all)
  • Agricultural and Biological Sciences(all)

Cite this

Landscape configurational heterogeneity by small-scale agriculture, not crop diversity, maintains pollinators and plant reproduction in western Europe. / Hass, Annika L.; Kormann, Urs G.; Tscharntke, Teja; Clough, Yann; Baillod, Aliette Bosem; Sirami, Clélia; Fahrig, Lenore; Martin, Jean Louis; Baudry, Jacques; Bertrand, Colette; Bosch, Jordi; Brotons, Lluís; Bure, Françoise; Georges, Romain; Giralt, David; Marcos-García, María; Ricarte, Antonio; Siriwardena, Gavin; Batáry, P.

In: Proceedings of the Royal Society B: Biological Sciences, Vol. 285, No. 1872, 20172242, 14.02.2018.

Research output: Contribution to journalArticle

Hass, AL, Kormann, UG, Tscharntke, T, Clough, Y, Baillod, AB, Sirami, C, Fahrig, L, Martin, JL, Baudry, J, Bertrand, C, Bosch, J, Brotons, L, Bure, F, Georges, R, Giralt, D, Marcos-García, M, Ricarte, A, Siriwardena, G & Batáry, P 2018, 'Landscape configurational heterogeneity by small-scale agriculture, not crop diversity, maintains pollinators and plant reproduction in western Europe', Proceedings of the Royal Society B: Biological Sciences, vol. 285, no. 1872, 20172242. https://doi.org/10.1098/rspb.2017.2242
Hass, Annika L. ; Kormann, Urs G. ; Tscharntke, Teja ; Clough, Yann ; Baillod, Aliette Bosem ; Sirami, Clélia ; Fahrig, Lenore ; Martin, Jean Louis ; Baudry, Jacques ; Bertrand, Colette ; Bosch, Jordi ; Brotons, Lluís ; Bure, Françoise ; Georges, Romain ; Giralt, David ; Marcos-García, María ; Ricarte, Antonio ; Siriwardena, Gavin ; Batáry, P. / Landscape configurational heterogeneity by small-scale agriculture, not crop diversity, maintains pollinators and plant reproduction in western Europe. In: Proceedings of the Royal Society B: Biological Sciences. 2018 ; Vol. 285, No. 1872.
@article{58c6668f0ff34d32ac4689a265b37998,
title = "Landscape configurational heterogeneity by small-scale agriculture, not crop diversity, maintains pollinators and plant reproduction in western Europe",
abstract = "Agricultural intensification is one of the main causes for the current biodiversity crisis. While reversing habitat loss on agricultural land is challenging, increasing the farmland configurational heterogeneity (higher field border density) and farmland compositional heterogeneity (higher crop diversity) has been proposed to counteract some habitat loss. Here, we tested whether increased farmland configurational and compositional heterogeneity promote wild pollinators and plant reproduction in 229 landscapes located in four major western European agricultural regions. High-field border density consistently increased wild bee abundance and seed set of radish (Raphanus sativus), probably through enhanced connectivity. In particular, we demonstrate the importance of crop-crop borders for pollinator movement as an additional experiment showed higher transfer of a pollen analogue along crop-crop borders than across fields or along semi-natural crop borders. By contrast, high crop diversity reduced bee abundance, probably due to an increase of crop types with particularly intensive management. This highlights the importance of crop identity when higher crop diversity is promoted. Our results show that small-scale agricultural systems can boost pollinators and plant reproduction. Agri-environmental policies should therefore aim to halt and reverse the current trend of increasing field sizes and to reduce the amount of crop types with particularly intensive management.",
keywords = "Bee, Compositional heterogeneity, Field size, Hoverfly, Landscape heterogeneity, Pollen transfer",
author = "Hass, {Annika L.} and Kormann, {Urs G.} and Teja Tscharntke and Yann Clough and Baillod, {Aliette Bosem} and Cl{\'e}lia Sirami and Lenore Fahrig and Martin, {Jean Louis} and Jacques Baudry and Colette Bertrand and Jordi Bosch and Llu{\'i}s Brotons and Fran{\cc}oise Bure and Romain Georges and David Giralt and Mar{\'i}a Marcos-Garc{\'i}a and Antonio Ricarte and Gavin Siriwardena and P. Bat{\'a}ry",
year = "2018",
month = "2",
day = "14",
doi = "10.1098/rspb.2017.2242",
language = "English",
volume = "285",
journal = "Philosophical Transactions of the Royal Society B: Biological Sciences",
issn = "0962-8436",
publisher = "Royal Society of London",
number = "1872",

}

TY - JOUR

T1 - Landscape configurational heterogeneity by small-scale agriculture, not crop diversity, maintains pollinators and plant reproduction in western Europe

AU - Hass, Annika L.

AU - Kormann, Urs G.

AU - Tscharntke, Teja

AU - Clough, Yann

AU - Baillod, Aliette Bosem

AU - Sirami, Clélia

AU - Fahrig, Lenore

AU - Martin, Jean Louis

AU - Baudry, Jacques

AU - Bertrand, Colette

AU - Bosch, Jordi

AU - Brotons, Lluís

AU - Bure, Françoise

AU - Georges, Romain

AU - Giralt, David

AU - Marcos-García, María

AU - Ricarte, Antonio

AU - Siriwardena, Gavin

AU - Batáry, P.

PY - 2018/2/14

Y1 - 2018/2/14

N2 - Agricultural intensification is one of the main causes for the current biodiversity crisis. While reversing habitat loss on agricultural land is challenging, increasing the farmland configurational heterogeneity (higher field border density) and farmland compositional heterogeneity (higher crop diversity) has been proposed to counteract some habitat loss. Here, we tested whether increased farmland configurational and compositional heterogeneity promote wild pollinators and plant reproduction in 229 landscapes located in four major western European agricultural regions. High-field border density consistently increased wild bee abundance and seed set of radish (Raphanus sativus), probably through enhanced connectivity. In particular, we demonstrate the importance of crop-crop borders for pollinator movement as an additional experiment showed higher transfer of a pollen analogue along crop-crop borders than across fields or along semi-natural crop borders. By contrast, high crop diversity reduced bee abundance, probably due to an increase of crop types with particularly intensive management. This highlights the importance of crop identity when higher crop diversity is promoted. Our results show that small-scale agricultural systems can boost pollinators and plant reproduction. Agri-environmental policies should therefore aim to halt and reverse the current trend of increasing field sizes and to reduce the amount of crop types with particularly intensive management.

AB - Agricultural intensification is one of the main causes for the current biodiversity crisis. While reversing habitat loss on agricultural land is challenging, increasing the farmland configurational heterogeneity (higher field border density) and farmland compositional heterogeneity (higher crop diversity) has been proposed to counteract some habitat loss. Here, we tested whether increased farmland configurational and compositional heterogeneity promote wild pollinators and plant reproduction in 229 landscapes located in four major western European agricultural regions. High-field border density consistently increased wild bee abundance and seed set of radish (Raphanus sativus), probably through enhanced connectivity. In particular, we demonstrate the importance of crop-crop borders for pollinator movement as an additional experiment showed higher transfer of a pollen analogue along crop-crop borders than across fields or along semi-natural crop borders. By contrast, high crop diversity reduced bee abundance, probably due to an increase of crop types with particularly intensive management. This highlights the importance of crop identity when higher crop diversity is promoted. Our results show that small-scale agricultural systems can boost pollinators and plant reproduction. Agri-environmental policies should therefore aim to halt and reverse the current trend of increasing field sizes and to reduce the amount of crop types with particularly intensive management.

KW - Bee

KW - Compositional heterogeneity

KW - Field size

KW - Hoverfly

KW - Landscape heterogeneity

KW - Pollen transfer

UR - http://www.scopus.com/inward/record.url?scp=85043575354&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85043575354&partnerID=8YFLogxK

U2 - 10.1098/rspb.2017.2242

DO - 10.1098/rspb.2017.2242

M3 - Article

VL - 285

JO - Philosophical Transactions of the Royal Society B: Biological Sciences

JF - Philosophical Transactions of the Royal Society B: Biological Sciences

SN - 0962-8436

IS - 1872

M1 - 20172242

ER -