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A global synthesis of the effects of diversified farming systems on arthropod diversity within fields and across agricultural landscapes

Lichtenberg, Elinor M.; Kennedy, Christina M.; Kremen, Claire; Batáry, Péter; Berendse, Frank; Bommarco, Riccardo LU ; Bosque-Pérez, Nilsa A.; Carvalheiro, Luísa G; Snyder, William E. and Williams, Neal M., et al. (2017) In Global Change Biology
Abstract

Agricultural intensification is a leading cause of global biodiversity loss, which can reduce the provisioning of ecosystem services in managed ecosystems. Organic farming and plant diversification are farm management schemes that may mitigate potential ecological harm by increasing species richness and boosting related ecosystem services to agroecosystems. What remains unclear is the extent to which farm management schemes affect biodiversity components other than species richness, and whether impacts differ across spatial scales and landscape contexts. Using a global metadataset, we quantified the effects of organic farming and plant diversification on abundance, local diversity (communities within fields), and regional diversity... (More)

Agricultural intensification is a leading cause of global biodiversity loss, which can reduce the provisioning of ecosystem services in managed ecosystems. Organic farming and plant diversification are farm management schemes that may mitigate potential ecological harm by increasing species richness and boosting related ecosystem services to agroecosystems. What remains unclear is the extent to which farm management schemes affect biodiversity components other than species richness, and whether impacts differ across spatial scales and landscape contexts. Using a global metadataset, we quantified the effects of organic farming and plant diversification on abundance, local diversity (communities within fields), and regional diversity (communities across fields) of arthropod pollinators, predators, herbivores, and detritivores. Both organic farming and higher in-field plant diversity enhanced arthropod abundance, particularly for rare taxa. This resulted in increased richness but decreased evenness. While these responses were stronger at local relative to regional scales, richness and abundance increased at both scales, and richness on farms embedded in complex relative to simple landscapes. Overall, both organic farming and in-field plant diversification exerted the strongest effects on pollinators and predators, suggesting these management schemes can facilitate ecosystem service providers without augmenting herbivore (pest) populations. Our results suggest that organic farming and plant diversification promote diverse arthropod metacommunities that may provide temporal and spatial stability of ecosystem service provisioning. Conserving diverse plant and arthropod communities in farming systems therefore requires sustainable practices that operate both within fields and across landscapes.

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Agricultural management schemes, Arthropod diversity, Biodiversity, Evenness, Functional groups, Landscape complexity, Meta-analysis, Organic farming, Plant diversity
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Global Change Biology
publisher
Wiley-Blackwell
external identifiers
  • scopus:85019045930
ISSN
1354-1013
DOI
10.1111/gcb.13714
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English
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yes
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d54ffae8-fd0f-4982-90df-f50f239be3d2
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2017-06-07 14:26:24
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2017-11-05 05:18:08
@article{d54ffae8-fd0f-4982-90df-f50f239be3d2,
  abstract     = {<p>Agricultural intensification is a leading cause of global biodiversity loss, which can reduce the provisioning of ecosystem services in managed ecosystems. Organic farming and plant diversification are farm management schemes that may mitigate potential ecological harm by increasing species richness and boosting related ecosystem services to agroecosystems. What remains unclear is the extent to which farm management schemes affect biodiversity components other than species richness, and whether impacts differ across spatial scales and landscape contexts. Using a global metadataset, we quantified the effects of organic farming and plant diversification on abundance, local diversity (communities within fields), and regional diversity (communities across fields) of arthropod pollinators, predators, herbivores, and detritivores. Both organic farming and higher in-field plant diversity enhanced arthropod abundance, particularly for rare taxa. This resulted in increased richness but decreased evenness. While these responses were stronger at local relative to regional scales, richness and abundance increased at both scales, and richness on farms embedded in complex relative to simple landscapes. Overall, both organic farming and in-field plant diversification exerted the strongest effects on pollinators and predators, suggesting these management schemes can facilitate ecosystem service providers without augmenting herbivore (pest) populations. Our results suggest that organic farming and plant diversification promote diverse arthropod metacommunities that may provide temporal and spatial stability of ecosystem service provisioning. Conserving diverse plant and arthropod communities in farming systems therefore requires sustainable practices that operate both within fields and across landscapes.</p>},
  author       = {Lichtenberg, Elinor M. and Kennedy, Christina M. and Kremen, Claire and Batáry, Péter and Berendse, Frank and Bommarco, Riccardo and Bosque-Pérez, Nilsa A. and Carvalheiro, Luísa G and Snyder, William E. and Williams, Neal M. and Winfree, Rachael and Klatt, Björn K. and Åström, Sandra and Benjamin, Faye and Brittain, Claire and Chaplin-Kramer, Rebecca and Clough, Yann and Danforth, Bryan N. and Diekötter, Tim and Eigenbrode, Sanford D. and Ekroos, Johan and Elle, Elizabeth and Freitas, Breno M. and Fukuda, Yuki and Gaines-Day, Hannah R. and Grab, Heather and Gratton, Claudio and Holzschuh, Andrea and Isaacs, Rufus and Isaia, Marco and Jha, Shalene and Jonason, Dennis and Jones, Vincent P. and Klein, Alexandra-Maria and Krauss, Jochen and Letourneau, Deborah K. and Macfadyen, Sarina and Mallinger, Rachel E. and Martin, Emily A. and Martinez, Eliana and Memmott, Jane and Morandin, Lora and Neame, Lisa A. and Otieno, Mark and Park, Mia G and Pfiffner, Lukas and Pocock, Michael J.O. and Ponce, Carlos and Potts, Simon G. and Poveda, Katja and Ramos, Mariangie and Rosenheim, Jay A. and Rundlöf, Maj and Sardiñas, Hillary S and Saunders, Manu E. and Schon, Nicole L. and Sciligo, Amber R and Sidhu, C. Sheena and Steffan-Dewenter, Ingolf and Tscharntke, Teja and Veselý, Milan and Weisser, Wolfgang W and Wilson, Julianna K. and Crowder, David W.},
  issn         = {1354-1013},
  keyword      = {Agricultural management schemes,Arthropod diversity,Biodiversity,Evenness,Functional groups,Landscape complexity,Meta-analysis,Organic farming,Plant diversity},
  language     = {eng},
  month        = {05},
  publisher    = {Wiley-Blackwell},
  series       = {Global Change Biology},
  title        = {A global synthesis of the effects of diversified farming systems on arthropod diversity within fields and across agricultural landscapes},
  url          = {http://dx.doi.org/10.1111/gcb.13714},
  year         = {2017},
}