Advanced

Configurational crop heterogeneity increases within-field plant diversity

Alignier, Audrey ; Solé-Senan, Xavier O. ; Robleño, Irene ; Baraibar, Bàrbara ; Fahrig, Lenore ; Giralt, David ; Gross, Nicolas ; Martin, Jean Louis ; Recasens, Jordi and Sirami, Clélia , et al. (2020) In Journal of Applied Ecology
Abstract

Increasing landscape heterogeneity by restoring semi-natural elements to reverse farmland biodiversity declines is not always economically feasible or acceptable to farmers due to competition for land. We hypothesized that increasing the heterogeneity of the crop mosaic itself, hereafter referred to as crop heterogeneity, can have beneficial effects on within-field plant diversity. Using a unique multi-country dataset from a cross-continent collaborative project covering 1,451 agricultural fields within 432 landscapes in Europe and Canada, we assessed the relative effects of compositional and configurational crop heterogeneity on within-field plant diversity components. We also examined how these relationships were modulated by the... (More)

Increasing landscape heterogeneity by restoring semi-natural elements to reverse farmland biodiversity declines is not always economically feasible or acceptable to farmers due to competition for land. We hypothesized that increasing the heterogeneity of the crop mosaic itself, hereafter referred to as crop heterogeneity, can have beneficial effects on within-field plant diversity. Using a unique multi-country dataset from a cross-continent collaborative project covering 1,451 agricultural fields within 432 landscapes in Europe and Canada, we assessed the relative effects of compositional and configurational crop heterogeneity on within-field plant diversity components. We also examined how these relationships were modulated by the position within the field. We found strong positive effects of configurational crop heterogeneity on within-field plant alpha and gamma diversity in field interiors. These effects were as high as the effect of semi-natural cover. In field borders, effects of crop heterogeneity were limited to alpha diversity. We suggest that a heterogeneous crop mosaic may overcome the high negative impact of management practices on plant diversity in field interiors, whereas in field borders, where plant diversity is already high, landscape effects are more limited. Synthesis and applications. Our study shows that increasing configurational crop heterogeneity is beneficial to within-field plant diversity. It opens up a new effective and complementary way to promote farmland biodiversity without taking land out of agricultural production. We therefore recommend adopting manipulation of crop heterogeneity as a specific, effective management option in future policy measures, perhaps adding to agri-environment schemes, to contribute to the conservation of farmland plant diversity.

(Less)
Please use this url to cite or link to this publication:
author
, et al. (More)
(Less)
organization
publishing date
type
Contribution to journal
publication status
epub
subject
keywords
biodiversity conservation, crop mosaic, diversity partitioning, farmland, field border, landscape composition, landscape configuration, weed
in
Journal of Applied Ecology
publisher
Wiley Online Library
external identifiers
  • scopus:85080976440
ISSN
0021-8901
DOI
10.1111/1365-2664.13585
language
English
LU publication?
yes
id
705096b6-e691-4551-9a4e-98d16b1d4afe
date added to LUP
2020-03-25 16:49:55
date last changed
2020-03-26 01:57:21
@article{705096b6-e691-4551-9a4e-98d16b1d4afe,
  abstract     = {<p>Increasing landscape heterogeneity by restoring semi-natural elements to reverse farmland biodiversity declines is not always economically feasible or acceptable to farmers due to competition for land. We hypothesized that increasing the heterogeneity of the crop mosaic itself, hereafter referred to as crop heterogeneity, can have beneficial effects on within-field plant diversity. Using a unique multi-country dataset from a cross-continent collaborative project covering 1,451 agricultural fields within 432 landscapes in Europe and Canada, we assessed the relative effects of compositional and configurational crop heterogeneity on within-field plant diversity components. We also examined how these relationships were modulated by the position within the field. We found strong positive effects of configurational crop heterogeneity on within-field plant alpha and gamma diversity in field interiors. These effects were as high as the effect of semi-natural cover. In field borders, effects of crop heterogeneity were limited to alpha diversity. We suggest that a heterogeneous crop mosaic may overcome the high negative impact of management practices on plant diversity in field interiors, whereas in field borders, where plant diversity is already high, landscape effects are more limited. Synthesis and applications. Our study shows that increasing configurational crop heterogeneity is beneficial to within-field plant diversity. It opens up a new effective and complementary way to promote farmland biodiversity without taking land out of agricultural production. We therefore recommend adopting manipulation of crop heterogeneity as a specific, effective management option in future policy measures, perhaps adding to agri-environment schemes, to contribute to the conservation of farmland plant diversity.</p>},
  author       = {Alignier, Audrey and Solé-Senan, Xavier O. and Robleño, Irene and Baraibar, Bàrbara and Fahrig, Lenore and Giralt, David and Gross, Nicolas and Martin, Jean Louis and Recasens, Jordi and Sirami, Clélia and Siriwardena, Gavin and Bosem Baillod, Aliette and Bertrand, Colette and Carrié, Romain and Hass, Annika and Henckel, Laura and Miguet, Paul and Badenhausser, Isabelle and Baudry, Jacques and Bota, Gerard and Bretagnolle, Vincent and Brotons, Lluis and Burel, Françoise and Calatayud, François and Clough, Yann and Georges, Romain and Gibon, Annick and Girard, Jude and Lindsay, Kathryn and Minano, Jesus and Mitchell, Scott and Patry, Nathalie and Poulin, Brigitte and Tscharntke, Teja and Vialatte, Aude and Violle, Cyrille and Yaverscovski, Nicole and Batáry, Péter},
  issn         = {0021-8901},
  language     = {eng},
  month        = {03},
  publisher    = {Wiley Online Library},
  series       = {Journal of Applied Ecology},
  title        = {Configurational crop heterogeneity increases within-field plant diversity},
  url          = {http://dx.doi.org/10.1111/1365-2664.13585},
  doi          = {10.1111/1365-2664.13585},
  year         = {2020},
}