Direct and apparent compensation in plant-herbivore interactions

Lebon Audrey, Mailleret Ludovic, Dumont Yves, Grognard Frédéric. 2014. Direct and apparent compensation in plant-herbivore interactions. Ecological Modelling, 290 : 192-203. International Symposium on Plant Growth Modeling, Simulation, Visualization and Applications (PMA12). 4, Shanghai, Chine, 31 Octobre 2012/3 Novembre 2012.

Quartile : Q2, Sujet : ECOLOGY

Liste HCERES des revues (en SHS) : oui

Thème(s) HCERES des revues (en SHS) : Economie-gestion

Résumé : The potential positive effects of herbivores on plants have been the subject of debates for decades. Whiletraditionally, herbivory was considered to have a negative impact on plants, some studies also reportedpossible mutualism between plants and herbivores. Plant defences, and in particular tolerance and resis-tance, seem to play an important role in shaping plant-herbivore interactions. The aim of this study isto show how a direct plant compensation mechanism translates into apparent compensation, i.e. thelong-term biomass response to herbivory, in simple plant-herbivore models. A special emphasis is thenput on how it interacts with resistance mechanisms. A qualitative study of the proposed models showsthat they can exhibit different plant-herbivore patterns, including neutral, antagonistic (negative appar-ent compensation) and mutualistic (positive apparent compensation) interactions. Moreover, it is shownthat density dependence plays a crucial role since, for a given system, the realized plant-herbivore pat-tern critically depends on the initial plant and herbivore levels. Our study shows the importance of directcompensation for the presence of plant-herbivore mutualism, a finding which we show, has significantimplications both in ecosystems ecology and in agricultural pest management.

Mots-clés Agrovoc : interactions biologiques, synergisme, herbivore, plante de culture, pâturages, protection des plantes, dynamique des populations, écologie

Classification Agris : F01 - Culture des plantes
F40 - Écologie végétale
U10 - Informatique, mathématiques et statistiques
L02 - Alimentation animale

Champ stratégique Cirad : Axe 1 (2014-2018) - Agriculture écologiquement intensive

Auteurs et affiliations

• Lebon Audrey, CIRAD-BIOS-UMR AMAP (FRA)
• Mailleret Ludovic, INRA (FRA)
• Dumont Yves, CIRAD-BIOS-UMR AMAP (FRA) ORCID: 0000-0003-4817-685X
• Grognard Frédéric, INRIA (FRA)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/573939/)

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