Mostrar el registro sencillo del ítem
dc.contributor.author
Farji Brener, Alejandro Gustavo
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.contributor.author
Elías Díaz, Débora
dc.contributor.author
Holanda, Isabelle
dc.contributor.author
Sierra Ricaurte, Andrés
dc.contributor.author
Barrantes, Kenneth
dc.contributor.author
Gutiérrez Campos, Pablo José
dc.date.available
2024-03-27T13:10:59Z
dc.date.issued
2023-07
dc.identifier.citation
Farji Brener, Alejandro Gustavo; Elías Díaz, Débora; Holanda, Isabelle; Sierra Ricaurte, Andrés; Barrantes, Kenneth; et al.; Changes in spinescence across leaf ontogeny support the optimal defence hypothesis in blackberries (Rubus adenotrichos); Cambridge University Press; Journal Of Tropical Ecology; 39; 1; 7-2023; 1-5
dc.identifier.issn
0266-4674
dc.identifier.uri
http://hdl.handle.net/11336/231689
dc.description.abstract
Hypotheses based on allocation theory and herbivore selection offer opposite predictions about how defence levels against herbivores change as the plant tissue grows. The growth differentiation balance hypothesis (GDBH) assumes that defences will be resource-limited in immature tissues and predict that defence levels increase as the plant tissue grows. Conversely, the optimal defence hypothesis (ODH) proposes that plants would have the highest level of defences in the parts that have the highest value in terms of fitness and/or are more frequently attacked by herbivores, such as young tissues. We examine whether spinescence in the shrub Rubus adenotrichos (blackberry) change as the leaf grows, and if this change is consistent with the GDBH or the ODH. We compare the petiole area occupied by prickles, the prickles density and the individual prickle area in mature versus young petioles from Rubus adenotrichos. Our results show that, in R. adenotrichos, young tissues are more protected than mature tissues. Prickles density and the petiole area occupied by prickles were up to 25% higher in young petioles than in mature ones. These results support the ODH, reinforcing the idea that extrinsic factors such as herbivores pressure might drive the change of structural defences level across leaf ontogeny.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Cambridge University Press
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
COSTA RICA
dc.subject
HERBIVORY
dc.subject
PLANT PHYSICAL DEFENCES
dc.subject
TROPICAL MONTANE FOREST
dc.subject.classification
Ecología
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.subject.classification
Ciencias Biológicas
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.title
Changes in spinescence across leaf ontogeny support the optimal defence hypothesis in blackberries (Rubus adenotrichos)
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2024-03-12T10:22:43Z
dc.identifier.eissn
1469-7831
dc.journal.volume
39
dc.journal.number
1
dc.journal.pagination
1-5
dc.journal.pais
Reino Unido
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.description.fil
Fil: Farji Brener, Alejandro Gustavo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
dc.description.fil
Fil: Elías Díaz, Débora. Universidad del Salvador; Argentina
dc.description.fil
Fil: Holanda, Isabelle. Universidade Federal de Pernambuco; Brasil
dc.description.fil
Fil: Sierra Ricaurte, Andrés. Universidad Nacional de Colombia; Colombia
dc.description.fil
Fil: Barrantes, Kenneth. Universidad de Costa Rica; Costa Rica
dc.description.fil
Fil: Gutiérrez Campos, Pablo José. Universidad de Costa Rica; Costa Rica
dc.journal.title
Journal Of Tropical Ecology
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1017/S0266467423000202
Archivos asociados