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Abstract
Mast seeding is characteristic of many long-lived tree species and widely proposed as a mechanism to reduce seed predation. However, whether the efficiency of this reproductive response may vary depending on type of seed predator (e.g., invertebrates vs. vertebrates) or depending on local characteristics, remains seldom explored. We evaluated for 8 yrs the patterns of seed production in antarctic beech (Nothofagus antarctica) forests related to management [ver mas...]
dc.contributor.authorSoler Esteban, Rosina Matilde
dc.contributor.authorEspelta, Josep Maria
dc.contributor.authorLencinas, María Vanessa
dc.contributor.authorPeri, Pablo Luis
dc.contributor.authorMartínez Pastur, Guillermo José
dc.date.accessioned2018-07-05T12:21:41Z
dc.date.available2018-07-05T12:21:41Z
dc.date.issued2017-09-15
dc.identifier.issn0378-1127
dc.identifier.otherhttps://doi.org/10.1016/j.foreco.2017.06.014
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0378112717305686
dc.identifier.urihttp://hdl.handle.net/20.500.12123/2729
dc.description.abstractMast seeding is characteristic of many long-lived tree species and widely proposed as a mechanism to reduce seed predation. However, whether the efficiency of this reproductive response may vary depending on type of seed predator (e.g., invertebrates vs. vertebrates) or depending on local characteristics, remains seldom explored. We evaluated for 8 yrs the patterns of seed production in antarctic beech (Nothofagus antarctica) forests related to management and its influence on insect and bird pre-dispersal seed predation. Along the study, mature seed production was highly variable across years (the population-level coefficient of variation, CVp: 0.98–1.14) and spatially synchronized (Pearson correlation coefficient: 0.83–0.86). Forest type (primary unmanaged, secondary-growth and managed stands) did not influence the amount of seed production nor masting patterns. Mean yearly seed predation by insects was higher than by birds, and their relationship with seeding patterns differed: i.e., while the proportion of seeds predated by insects increased during non-mast years maximum bird predation occurred in mast years. Therefore, predation by insects and birds showed a strong negative relationship. Our results suggest that effectiveness of masting to escape seed predators may be highly depend on the type of predator. We address whether this effect may be due to differences in life history traits among the seed predators involved (i.e., degree of host specificity, dispersal ability or the duration of the life-cycle) and whether an “imperfect” control of avian seed predation may partially be advantageous for the dynamics of the masting species to enhance seed dispersal.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_AR
dc.sourceForest Ecology and Management 400 : 173-180 (September 2017)es_AR
dc.subjectNothofaguses_AR
dc.subjectProducción de Semillases_AR
dc.subjectSeed Productioneng
dc.subjectDepredaciónes_AR
dc.subjectPredationeng
dc.subjectPájaros Depredadoreses_AR
dc.subjectPredatory Birdseng
dc.subjectInsectos Depredadoreses_AR
dc.subjectPredatory Insectseng
dc.subjectOrdenación Forestales_AR
dc.subjectForest Managementeng
dc.subject.otherNothofagus antarcticaes_AR
dc.titleMasting has different effects on seed predation by insects and birds in antarctic beech forests with no influence of forest managementes_AR
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articlees_AR
dc.typeinfo:eu-repo/semantics/publishedVersiones_AR
dc.description.origenEEA Santa Cruzes_AR
dc.description.filFil: Soler Esteban, Rosina Matilde. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Centro Austral de Investigaciones Cientificas; Argentinaes_AR
dc.description.filFil: Espelta, Josep Maria. Centro de Investigación Ecológica y Aplicaciones Forestales (CREAF); Españaes_AR
dc.description.filFil: Lencinas, María Vanessa. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Centro Austral de Investigaciones Cientificas; Argentinaes_AR
dc.description.filFil: Peri, Pablo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina. Universidad Nacional de la Patagonia Austral; Argentinaes_AR
dc.description.filFil: Martínez Pastur, Guillermo José. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Centro Austral de Investigaciones Cientificas; Argentinaes_AR
dc.subtypecientifico


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