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Elucidating the interaction between light competition and herbivore feeding patterns using functional-structural plant modelling.
Ann Bot. 2018 04 18; 121(5):1019-1031.AB

Abstract

Background and Aims

Plants usually compete with neighbouring plants for resources such as light as well as defend themselves against herbivorous insects. This requires investment of limiting resources, resulting in optimal resource distribution patterns and trade-offs between growth- and defence-related traits. A plant's competitive success is determined by the spatial distribution of its resources in the canopy. The spatial distribution of herbivory in the canopy in turn differs between herbivore species as the level of herbivore specialization determines their response to the distribution of resources and defences in the canopy. Here, we investigated to what extent competition for light affects plant susceptibility to herbivores with different feeding preferences.

Methods

To quantify interactions between herbivory and competition, we developed and evaluated a 3-D spatially explicit functional-structural plant model for Brassica nigra that mechanistically simulates competition in a dynamic light environment, and also explicitly models leaf area removal by herbivores with different feeding preferences. With this novel approach, we can quantitatively explore the extent to which herbivore feeding location and light competition interact in their effect on plant performance.

Key Results

Our results indicate that there is indeed a strong interaction between levels of plant-plant competition and herbivore feeding preference. When plants did not compete, herbivory had relatively small effects irrespective of feeding preference. Conversely, when plants competed, herbivores with a preference for young leaves had a strong negative effect on the competitiveness and subsequent performance of the plant, whereas herbivores with a preference for old leaves did not.

Conclusions

Our study predicts how plant susceptibility to herbivory depends on the composition of the herbivore community and the level of plant competition, and highlights the importance of considering the full range of dynamics in plant-plant-herbivore interactions.

Authors+Show Affiliations

Wageningen University, Laboratory of Entomology, Wageningen, The Netherlands. Wageningen University, Centre for Crop System Analysis, Wageningen, The Netherlands.Wageningen University, Laboratory of Entomology, Wageningen, The Netherlands.Wageningen University, Centre for Crop System Analysis, Wageningen, The Netherlands.Wageningen University, Centre for Crop System Analysis, Wageningen, The Netherlands.

Pub Type(s)

Evaluation Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

29373660

Citation

de Vries, Jorad, et al. "Elucidating the Interaction Between Light Competition and Herbivore Feeding Patterns Using Functional-structural Plant Modelling." Annals of Botany, vol. 121, no. 5, 2018, pp. 1019-1031.
de Vries J, Poelman EH, Anten N, et al. Elucidating the interaction between light competition and herbivore feeding patterns using functional-structural plant modelling. Ann Bot. 2018;121(5):1019-1031.
de Vries, J., Poelman, E. H., Anten, N., & Evers, J. B. (2018). Elucidating the interaction between light competition and herbivore feeding patterns using functional-structural plant modelling. Annals of Botany, 121(5), 1019-1031. https://doi.org/10.1093/aob/mcx212
de Vries J, et al. Elucidating the Interaction Between Light Competition and Herbivore Feeding Patterns Using Functional-structural Plant Modelling. Ann Bot. 2018 04 18;121(5):1019-1031. PubMed PMID: 29373660.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Elucidating the interaction between light competition and herbivore feeding patterns using functional-structural plant modelling. AU - de Vries,Jorad, AU - Poelman,Erik H, AU - Anten,Niels, AU - Evers,Jochem B, PY - 2017/09/15/received PY - 2018/01/11/accepted PY - 2018/1/27/pubmed PY - 2019/4/23/medline PY - 2018/1/27/entrez SP - 1019 EP - 1031 JF - Annals of botany JO - Ann. Bot. VL - 121 IS - 5 N2 - Background and Aims: Plants usually compete with neighbouring plants for resources such as light as well as defend themselves against herbivorous insects. This requires investment of limiting resources, resulting in optimal resource distribution patterns and trade-offs between growth- and defence-related traits. A plant's competitive success is determined by the spatial distribution of its resources in the canopy. The spatial distribution of herbivory in the canopy in turn differs between herbivore species as the level of herbivore specialization determines their response to the distribution of resources and defences in the canopy. Here, we investigated to what extent competition for light affects plant susceptibility to herbivores with different feeding preferences. Methods: To quantify interactions between herbivory and competition, we developed and evaluated a 3-D spatially explicit functional-structural plant model for Brassica nigra that mechanistically simulates competition in a dynamic light environment, and also explicitly models leaf area removal by herbivores with different feeding preferences. With this novel approach, we can quantitatively explore the extent to which herbivore feeding location and light competition interact in their effect on plant performance. Key Results: Our results indicate that there is indeed a strong interaction between levels of plant-plant competition and herbivore feeding preference. When plants did not compete, herbivory had relatively small effects irrespective of feeding preference. Conversely, when plants competed, herbivores with a preference for young leaves had a strong negative effect on the competitiveness and subsequent performance of the plant, whereas herbivores with a preference for old leaves did not. Conclusions: Our study predicts how plant susceptibility to herbivory depends on the composition of the herbivore community and the level of plant competition, and highlights the importance of considering the full range of dynamics in plant-plant-herbivore interactions. SN - 1095-8290 UR - https://www.unboundmedicine.com/medline/citation/29373660/Elucidating_the_interaction_between_light_competition_and_herbivore_feeding_patterns_using_functional_structural_plant_modelling_ L2 - https://academic.oup.com/aob/article-lookup/doi/10.1093/aob/mcx212 DB - PRIME DP - Unbound Medicine ER -