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dc.date.accessioned 2024-06-14T18:44:54Z
dc.date.available 2024-06-14T18:44:54Z
dc.date.issued 2024
dc.identifier.uri http://sedici.unlp.edu.ar/handle/10915/167309
dc.description.abstract Background: Forest ecosystems undergo significant transformations due to harvesting and climate fluctuations, emphasizing the critical role of seeding in natural regeneration and long-term structural preservation. Climate change further amplifies these dynamics, affecting phenology across species and regions. In Tierra del Fuego (Argentina), Nothofagus pumilio (lenga) forests represent the most important timber resource, and it is managed through different silvicultural strategies. This species demonstrates notable post-disturbance regeneration, yet seed fall exhibits significant variability, leading to variations in seed quality (e.g., viability). This study aims to assess fluctuations in N. pumilio seed quality, determine how it varies concerning forest management strategies, annual productivity, and the cooccurrence of climatic phenomena including El Niño-Southern Oscillation (ENSO) and the Southern Annular Mode (SAM). Results: Viable seeds represented 18.4% of the total, notably higher in unharvested than in managed areas. Conversely, empty seeds were more prevalent in harvested areas (> 75%). Seed quality exhibited significant differences across silvicultural treatments, except for insect-predated seeds, which had similar proportions across all areas, though dispersed retention showed higher predation. When considering years with varying production levels, high-production years favoured full and viable seeds, particularly in unharvested forests and aggregated retention, while low-production years saw reduced viability across all treatments. Quadratic models revealed that viability increased with seed production, where unharvested forests achieved the highest values. Climate variability influenced seed proportions, where ENSO+/SAM+ promoting more full and viable seeds, while ENSO–/SAM+ favoured nonpredated seeds, especially in unharvested stands. Conclusions: Seed quality varies among treatments and years with different levels of seeding. Variations in seed quality, linked to climatic events, influence seed viability. Seed quality plays a critical role in forest regeneration, ensuring a seedling bank for harvested stands to face climate variability. These findings are relevant for forest management and ecosystem services, considering the increasing climate variability and extreme events. Understanding these influences is crucial for Nothofagus pumilio forests’ sustainability and global forest adaptation strategies. en
dc.language en es
dc.subject Forest management es
dc.subject Seeding es
dc.subject Climate change es
dc.subject Extreme event es
dc.subject Patagonia es
dc.title Quality evaluation of Nothofagus pumilio seeds linked to forest management and climatic events en
dc.type Articulo es
sedici.identifier.other https://doi.org/10.1186/s13717-024-00485-w es
sedici.identifier.issn 2192-1709 es
sedici.creator.person Rodríguez Souilla, Julián es
sedici.creator.person Chaves, Jimena E. es
sedici.creator.person Lencinas, María Vanessa es
sedici.creator.person Cellini, Juan Manuel es
sedici.creator.person Roig, Fidel A. es
sedici.creator.person Peri, Pablo L. es
sedici.creator.person Martínez Pastur, Guillermo José es
sedici.subject.materias Ciencias Agrarias es
sedici.description.fulltext true es
mods.originInfo.place Laboratorio de Investigaciones en Madera es
sedici.subtype Articulo es
sedici.rights.license Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
sedici.rights.uri http://creativecommons.org/licenses/by-nc-sa/4.0/
sedici.description.peerReview peer-review es
sedici.relation.journalTitle Ecological Processes es
sedici.relation.journalVolumeAndIssue vol. 13, no. 1 es


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Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) Excepto donde se diga explícitamente, este item se publica bajo la siguiente licencia Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)