Density-Dependent Effects of Simultaneous Root and Floral Herbivory on Plant Fitness and Defense

Aguirrebengoa M, Müller C, Hambäck PA, González-Megías A (2023)
Plants 12(2): 283.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Autor*in
Aguirrebengoa, Martin; Müller, CarolineUniBi; Hambäck, Peter A.; González-Megías, Adela
Abstract / Bemerkung
Plants are attacked by multiple herbivores, and depend on a precise regulation of responses to cope with a wide range of antagonists. Simultaneous herbivory can occur in different plant compartments, which may pose a serious threat to plant growth and reproduction. In particular, plants often face co-occurring root and floral herbivory, but few studies have focused on such interactions. Here, we investigated in the field the combined density-dependent effects of root-chewing cebrionid beetle larvae and flower-chewing pierid caterpillars on the fitness and defense of a semiarid Brassicaceae herb. We found that the fitness impact of both herbivore groups was independent and density-dependent. Increasing root herbivore density non-significantly reduced plant fitness, while the relationship between increasing floral herbivore density and the reduction they caused in both seed number and seedling emergence was non-linear. The plant defensive response was non-additive with regard to the different densities of root and floral herbivores; high floral herbivore density provoked compensatory investment in reproduction, and this tolerance response was combined with aboveground chemical defense induction when also root herbivore density was high. Plants may thus prioritize specific trait combinations in response to varying combined below- and aboveground herbivore densities to minimize negative impacts on fitness.
Erscheinungsjahr
2023
Zeitschriftentitel
Plants
Band
12
Ausgabe
2
Art.-Nr.
283
eISSN
2223-7747
Page URI
https://pub.uni-bielefeld.de/record/2968068

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Aguirrebengoa M, Müller C, Hambäck PA, González-Megías A. Density-Dependent Effects of Simultaneous Root and Floral Herbivory on Plant Fitness and Defense. Plants. 2023;12(2): 283.
Aguirrebengoa, M., Müller, C., Hambäck, P. A., & González-Megías, A. (2023). Density-Dependent Effects of Simultaneous Root and Floral Herbivory on Plant Fitness and Defense. Plants, 12(2), 283. https://doi.org/10.3390/plants12020283
Aguirrebengoa, Martin, Müller, Caroline, Hambäck, Peter A., and González-Megías, Adela. 2023. “Density-Dependent Effects of Simultaneous Root and Floral Herbivory on Plant Fitness and Defense”. Plants 12 (2): 283.
Aguirrebengoa, M., Müller, C., Hambäck, P. A., and González-Megías, A. (2023). Density-Dependent Effects of Simultaneous Root and Floral Herbivory on Plant Fitness and Defense. Plants 12:283.
Aguirrebengoa, M., et al., 2023. Density-Dependent Effects of Simultaneous Root and Floral Herbivory on Plant Fitness and Defense. Plants, 12(2): 283.
M. Aguirrebengoa, et al., “Density-Dependent Effects of Simultaneous Root and Floral Herbivory on Plant Fitness and Defense”, Plants, vol. 12, 2023, : 283.
Aguirrebengoa, M., Müller, C., Hambäck, P.A., González-Megías, A.: Density-Dependent Effects of Simultaneous Root and Floral Herbivory on Plant Fitness and Defense. Plants. 12, : 283 (2023).
Aguirrebengoa, Martin, Müller, Caroline, Hambäck, Peter A., and González-Megías, Adela. “Density-Dependent Effects of Simultaneous Root and Floral Herbivory on Plant Fitness and Defense”. Plants 12.2 (2023): 283.

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