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dc.contributor.authorLeverkus, Alexandro Bitol 
dc.contributor.authorCastro, Jorge
dc.contributor.authorPuerta-Piñero, Carolina
dc.contributor.authorRey Benayas, José María
dc.identifier.bibliographicCitationEcological Engineering, 2013, v. 53, n. , p. 15-22en
dc.description.abstractAcorn sowing is a reforestation technique that can potentially render high-quality oak seedlings and high seedling survival, although it is often discarded due to high rates of seed predation. Predator activity can be modified by habitat complexity due to its effects on accessibility and protection for different predators. In this study we analysed how habitat complexity generated by different post-fire management treatments, sowing depth, and capsaicin (a chemical repellent) affect acorn predation by two guilds of post-dispersal predators that differ in size and foraging behaviour. We carried out two acorn predation experiments. In Experiment #1 we buried acorns at two depths (2 and 8 cm) in two post-fire burnt-wood management treatments of different habitat complexity, namely: (1) Salvage Logging (SL), where the burnt trunks were cut and piled and the branches were masticated (lower habitat complexity), and (2) Non-Intervention (NI), with no action after the fire and 100% of the trees naturally fallen by 2009, thus leaving a habitat with lying burnt logs and branches (higher habitat complexity). In Experiment #2 we repeated Experiment #1, with the addition of capsaicin as a mammal repellent treatment. Most acorns were consumed in both years (ca. 90%), mainly by rodents. In Experiment #1 predation by boars accounted for 4.1% of overall predation, and it was about twice as high in SL than in NI, likely due to the physical difficulty for large mammals to forage in an area with a complex structure created by lying logs and branches. In contrast, rodents consumed ca. 1.4 times more acorns in NI than in SL, which led to overall greater predation in NI in both experiments. This was likely due to the protection provided by the branches for the rodent community. Deeper burial reduced predation by small percentages, although in Experiment #1 it had a negligible effect in NI. Capsaicin did not reduce predation, and it reduced seedling emergence to half. This study suggests that habitat complexity created by trunks and branches reduced predation by wild boars, but favoured rodent acorn predation. We conclude that other methods for the protection of individual acorns need to be identified to increase the success of oak reforestation via seeding.en
dc.description.sponsorshipMinisterio de Ciencia e Innovaciónes_ES
dc.description.sponsorshipComunidad de Madrides_ES
dc.description.sponsorshipMinisterio de Ciencia y Educaciónes_ES
dc.description.sponsorshipUnión Europeaes_ES
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)en
dc.rights© 2013 Elsevieren
dc.subjectAcorn removalen
dc.subjectPost-fire managementen
dc.subjectSeed predationen
dc.subjectSeed sowingen
dc.titleSuitability of the management of habitat complexity, acorn burial depth, and a chemical repellent for post-fire reforestation of oaksen
dc.subject.ecienciaMedio Ambientees_ES
dc.subject.ecienciaEnvironmental scienceen
dc.contributor.affiliationUniversidad de Alcalá. Departamento de Ciencias de la Vidaes_ES
dc.relation.projectIDCGL2008-01671 (Ministerio de Ciencia e Innovación, España)es_ES
dc.relation.projectIDS2009AMB-1783 REMEDINAL2 (Comunidad de Madrid)es_ES
dc.relation.projectIDAP2010-0272 y EX2009-0703 (Ministerio de Ciencia y Educación, España)es_ES
dc.relation.projectIDRTA2007-00008-00-00 (INIA) + FEDER funds (Unión Europea)es_ES
dc.identifier.publicationtitleEcological Engineeringen

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