English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/37211
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Title

Variability in the behavioural responses of three generalist herbivores to the most abundant coumarin in Daphne laureola leaves

AuthorsAlonso, Conchita ; García, Isabel M.; Zapata, Nelson; Pérez, Ricardo
KeywordsChemical defences
Diffuse coevolution
Feeding behaviour
Generalist host-range
Plant-herbivore interactions
Spurge-laurel
Lepidoptera
Noctuidae
Pseudenargia ulicis
Noctua janthe
Spodoptera littoralis
Issue Date4-Jun-2009
PublisherNetherlands Entomological Society
CitationEntomologia Experimentalis et Applicata 132(1): 76-83 (2009)
AbstractWe evaluated the responses of three generalist herbivores (Lepidoptera: Noctuidae) to the most abundant coumarin in young leaves of spurge-laurel, Daphne laureola L. (Thymelaeaceae), a perennial shrub consistently fed upon by several noctuid species. Pseudenargia ulicis Staud and Noctua janthe Borkhausen are natural herbivores of the species in southeastern Spain, whereas Spodoptera littoralis Boisduval is a model species frequently used to address the antifeedant role of secondary compounds. Discrimination between control and coumarin-coated D. laureola leaves was investigated by short-term choice experiments. We found species-specific behavioural responses to the treatment: P. ulicis preferred the control leaves, whereas S. littoralis did not discriminate between leaf treatments, although it clearly avoided coumarin when incorporated into an artificial diet, and N. janthe preferred the coumarin-coated leaves. Furthermore, N. janthe larvae reduced consumption when the proportion of treated leaves ingested increased and consumption of S. littoralis larvae was also reduced in coumarin-containing diet under no-choice conditions. Our results highlight that different herbivore species feeding simultaneously on the same host plant respond differently to a single chemical defence compound, likely constraining a directional response of the plant to selection.
Description8 páginas, 3 figuras, 1 tabla.
Publisher version (URL)http://dx.doi.org/10.1111/j.1570-7458.2009.00869.x
URIhttp://hdl.handle.net/10261/37211
DOI10.1111/j.1570-7458.2009.00869.x
ISSN0013-8703
Appears in Collections:(IIQ) Artículos
(EBD) Artículos
Files in This Item:
There are no files associated with this item.
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.