Artículo
Mutualism has its limits: Consequences of asymmetric interactions between a well-defended plant and its herbivorous pollinator
Balbuena, María Sol
; Broadhead, Geoffrey T.; Dahake, Ajinkya; Barnett, Emily; Vergara, Melissa; Skogen, Krissa A.; Jogesh, Tania; Raguso, Robert A.
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Fecha de publicación:
05/2022
Editorial:
The Royal Society
Revista:
Philosophical Transactions of the Royal Society B: Biological Sciences
ISSN:
0962-8436
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Concern for pollinator health often focuses on social bees and their agricultural importance at the expense of other pollinators and their ecosystem services. When pollinating herbivores use the same plants as nectar sources and larval hosts, ecological conflicts emerge for both parties, as the pollinator's services are mitigated by herbivory and its larvae are harmed by plant defences. We tracked individual-level metrics of pollinator health-growth, survivorship, fecundity-across the life cycle of a pollinating herbivore, the common hawkmoth, Hyles lineata, interacting with a rare plant, Oenothera harringtonii, that is polymorphic for the common floral volatile (R)-(-)-linalool. Linalool had no impact on floral attraction, but its experimental addition suppressed oviposition on plants lacking linalool. Plants showed robust resistance against herbivory from leaf-disc to whole-plant scales, through poor larval growth and survivorship. Higher larval performance on other Oenothera species indicates that constitutive herbivore resistance by O. harringtonii is not a genus-wide trait. Leaf volatiles differed among populations of O. harringtonii but were not induced by larval herbivory. Similarly, elagitannins and other phenolics varied among plant tissues but were not herbivore-induced. Our findings highlight asymmetric plant-pollinator interactions and the importance of third parties, including alternative larval host plants, in maintaining pollinator health. This article is part of the theme issue 'Natural processes influencing pollinator health: From chemistry to landscapes'.
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Articulos(IFIBYNE)
Articulos de INST.DE FISIOL., BIOL.MOLECULAR Y NEUROCIENCIAS
Articulos de INST.DE FISIOL., BIOL.MOLECULAR Y NEUROCIENCIAS
Citación
Balbuena, María Sol; Broadhead, Geoffrey T.; Dahake, Ajinkya; Barnett, Emily; Vergara, Melissa; et al.; Mutualism has its limits: Consequences of asymmetric interactions between a well-defended plant and its herbivorous pollinator; The Royal Society; Philosophical Transactions of the Royal Society B: Biological Sciences; 377; 1853; 5-2022; 1-17
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