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Crop pests and predators exhibit inconsistent responses to surrounding landscape composition

Karp, Daniel S. and Chaplin-Kramer, Rebecca and Meehan, Timothy D. and Martin, Emily A. and DeClerck, Fabrice and Grab, Heather and Gratton, Claudio and Hunt, Lauren and Larsen, Ashley E. and Martínez-Salinas, Alejandra and O’Rourke, Megan E. and Rusch, Adrien and Poveda, Katja and Jonsson, Mattias and Rosenheim, Jay A. and Schellhorn, Nancy A. and Tscharntke, Teja and Wratten, Stephen D. and Zhang, Wei and Iverson, Aaron L. and Adler, Lynn S. and Albrecht, Matthias and Alignier, Audrey and Angelella, Gina M. and Zubair Anjum, Muhammad and Avelino, Jacques and Batáry, Péter and Baveco, Johannes M. and Bianchi, Felix J. J. A. and Birkhofer, Klaus and Bohnenblust, Eric W. and Bommarco, Riccardo and Brewer, Michael J. and Caballero-López, Berta and Carrière, Yves and Carvalheiro, Luísa G. and Cayuela, Luis and Centrella, Mary and Ćetković, Aleksandar and Henri, Dominic Charles and Chabert, Ariane and Costamagna, Alejandro C. and De la Mora, Aldo and de Kraker, Joop and Desneux, Nicolas and Diehl, Eva and Diekötter, Tim and Dormann, Carsten F. and Eckberg, James O. and Entling, Martin H. and Fiedler, Daniela and Franck, Pierre and Frank van Veen, F. J. and Frank, Thomas and Gagic, Vesna and Garratt, Michael P. D. and Getachew, Awraris and Gonthier, David J. and Goodell, Peter B. and Graziosi, Ignazio and Groves, Russell L. and Gurr, Geoff M. and Hajian-Forooshani, Zachary and Heimpel, George E. and Herrmann, John D. and Huseth, Anders S. and Inclán, Diego J. and Ingrao, Adam J. and Iv, Phirun and Jacot, Katja and Johnson, Gregg A. and Jones, Laura and Kaiser, Marina and Kaser, Joe M. and Keasar, Tamar and Kim, Tania N. and Kishinevsky, Miriam and Landis, Douglas A. and Lavandero, Blas and Lavigne, Claire and Le Ralec, Anne and Lemessa, Debissa and Letourneau, Deborah K. and Liere, Heidi and Lu, Yanhui and Lubin, Yael and Luttermoser, Tim and Maas, Bea and Mace, Kevi and Madeira, Filipe and Mader, Viktoria and Cortesero, Anne Marie and Marini, Lorenzo and Martinez, Eliana and Martinson, Holly M. and Menozzi, Philippe and Mitchell, Matthew G. E. and Miyashita, Tadashi and Molina, Gonzalo A. R. and Molina-Montenegro, Marco A. and O’Neal, Matthew E. and Opatovsky, Itai and Ortiz-Martinez, Sebaastian and Nash, Michael and Östman, Örjan and Ouin, Annie and Pak, Damie and Paredes, Daniel and Parsa, Soroush and Parry, Hazel and Perez-Alvarez, Ricardo and Perović, David J. and Peterson, Julie A. and Petit, Sandrine and Philpott, Stacy M. and Plantegenest, Manuel and Plećaš, Milan and Pluess, Therese and Pons, Xavier and Potts, Simon G. and Pywell, Richard F. and Ragsdale, David W. and Rand, Tatyana A. and Raymond, Lucie and Ricci, Benoît and Sargent, Chris and Sarthou, Jean-Pierre and Saulais, Julia and Schäckermann, Jessica and Schmidt, Nick P. and Schneider, Gudrun and Schüepp, Christof and Sivakoff, Frances S. and Smith, Henrik G. and Stack Whitney, Kaitlin and Stutz, Sonja and Szendrei, Zsofia and Takada, Mayura B. and Taki, Hisatomo and Tamburini, Giovanni and Thomson, Linda J. and Tricault, Yann and Tsafack, Noelline and Tschumi, Matthias and Valantin-Morison, Muriel and Van Trinh, Mai and van der Werf, Wopke and Vierling, Kerri T. and Werling, Ben P. and Wickens, Jennifer B. and Wickens, Victoria J. and Woodcock, Ben A. and Wyckhuys, Kris and Xiao, Haijun and Yasuda, Mika and Yoshioka, Akira and Zou, Yi Crop pests and predators exhibit inconsistent responses to surrounding landscape composition. (2018) Proceedings of the National Academy of Sciences of the United States of America, 115 (3). 1-8. ISSN 0027-8424

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Official URL: https://doi.org/10.1073/pnas.1800042115

Abstract

The idea that noncrop habitat enhances pest control and represents a win-win opportunity to conserve biodiversity and bolster yields has emerged as an agroecological paradigm. However, while noncrop habitat in landscapes surrounding farms sometimes benefits pest predators, natural enemy responses remain heterogeneous across studies and effects on pests are inconclusive. The observed heterogeneity in species responses to noncrop habitat may be biological in origin or could result from variation in how habitat and biocontrol are measured. Here, we use a pest-control database encompassing 132 studies and 6,759 sites worldwide to model natural enemy and pest abundances, predation rates, and crop damage as a function of landscape composition. Our results showed that although landscape composition explained significant variation within studies, pest and enemy abundances, predation rates, crop damage, and yields each exhibited different responses across studies, sometimes increasing and sometimes decreasing in landscapes with more noncrop habitat but overall showing no consistent trend. Thus, models that used landscape-composition variables to predict pest-control dynamics demonstrated little potential to explain variation across studies, though prediction did improve when comparing studies with similar crop and landscape features. Overall, our work shows that surrounding noncrop habitat does not consistently improve pest management, meaning habitat conservation may bolster production in some systems and depress yields in others. Future efforts to develop tools that inform farmers when habitat conservation truly represents a win-win would benefit from increased understanding of how landscape effects are modulated by local farm management and the biology of pests and their enemies.

Item Type:Article
HAL Id:hal-02134898
ProdINRA Id:438121
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Institut National de la Recherche Agronomique - INRA (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
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Deposited On:05 Nov 2018 11:56

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