Quality evaluation of Nothofagus pumilio seeds linked to forest management and climatic events
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. I...
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| Formato: | info:ar-repo/semantics/artículo |
| Lenguaje: | Inglés |
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Springer Nature
2024
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12123/16629 https://ecologicalprocesses.springeropen.com/articles/10.1186/s13717-024-00485-w https://doi.org/10.1186/s13717-024-00485-w |
| _version_ | 1855037535176097792 |
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| author | Rodríguez‑Souilla, Julián Chaves, Jimena Elizabeth Lencinas, María Vanessa Cellini, Juan Manuel Roig Junent, Fidel Alejandro Peri, Pablo Luis Martínez Pastur, Guillermo José |
| author_browse | Cellini, Juan Manuel Chaves, Jimena Elizabeth Lencinas, María Vanessa Martínez Pastur, Guillermo José Peri, Pablo Luis Rodríguez‑Souilla, Julián Roig Junent, Fidel Alejandro |
| author_facet | Rodríguez‑Souilla, Julián Chaves, Jimena Elizabeth Lencinas, María Vanessa Cellini, Juan Manuel Roig Junent, Fidel Alejandro Peri, Pablo Luis Martínez Pastur, Guillermo José |
| author_sort | Rodríguez‑Souilla, Julián |
| collection | INTA Digital |
| description | 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). Viable seeds represented 18.4% of the total, notably higher in unharvested than in managed areas. Con‑
versely, 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 non‑predated seeds, especially in unharvested stands. 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 influ‑
ences is crucial for Nothofagus pumilio forests’ sustainability and global forest adaptation strategies. |
| format | info:ar-repo/semantics/artículo |
| id | INTA16629 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2024 |
| publishDateRange | 2024 |
| publishDateSort | 2024 |
| publisher | Springer Nature |
| publisherStr | Springer Nature |
| record_format | dspace |
| spelling | INTA166292024-02-15T15:18:25Z Quality evaluation of Nothofagus pumilio seeds linked to forest management and climatic events Rodríguez‑Souilla, Julián Chaves, Jimena Elizabeth Lencinas, María Vanessa Cellini, Juan Manuel Roig Junent, Fidel Alejandro Peri, Pablo Luis Martínez Pastur, Guillermo José Primary Forests Sowing Climate Change Harvesting Natural Regeneration Phenology Ecosystem Disturbance Forest Management Bosques Primarios Siembra Nothofagus pumilio Cambio Climático Cosecha Regeneración Natural Fenología Perturbación del Ecosistema Ordenación Forestal Tierra del Fuego Extreme Events Climate Fluctuations Adaptation Strategies Eventos Extremos Fluctuaciones Climáticas Estrategias de Adaptación Región Patagónica 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). Viable seeds represented 18.4% of the total, notably higher in unharvested than in managed areas. Con‑ versely, 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 non‑predated seeds, especially in unharvested stands. 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 influ‑ ences is crucial for Nothofagus pumilio forests’ sustainability and global forest adaptation strategies. EEA Santa Cruz Fil: Rodríguez‑Souilla, Julián. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas (CADIC); Argentina. Fil: Chaves, Jimena Elizabeth. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas (CADIC); Argentina. Fil: Lencinas, María Vanessa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas (CADIC); Argentina. Fil: Cellini, Juan Manuel. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo. Laboratorio de Investigaciones en Maderas. La Plata, Buenos Aires; Argentina. Fil: Roig Junent, Fidel Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA); Argentina. Fil: Roig Junent, Fidel Alejandro. Universidad Mayor. Hémera Centro de Observación de la Tierra; Chile. Fil: Peri, Pablo Luis. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina. Fil: Peri, Pablo Luis. Universidad Nacional de la Patagonia Austral; Argentina. Fil: Peri, Pablo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: Martínez Pastur, Guillermo José. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas (CADIC); Argentina. 2024-02-15T15:07:20Z 2024-02-15T15:07:20Z 2024-01-23 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/16629 https://ecologicalprocesses.springeropen.com/articles/10.1186/s13717-024-00485-w Rodríguez-Souilla J.; Chaves J.E.; Lencinas M.V.; Cellini J.M.; Roig F.A.; Peri P.L.; Martínez Pastur G. (2024) Quality evaluation of Nothofagus pumilio seeds linked to forest management and climatic events. Ecological Processes 13: 7. https://doi.org/10.1186/s13717-024-00485-w 2192-1709 (electronic) https://doi.org/10.1186/s13717-024-00485-w eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Springer Nature Ecological Processes 13 : 7 (2024) |
| spellingShingle | Primary Forests Sowing Climate Change Harvesting Natural Regeneration Phenology Ecosystem Disturbance Forest Management Bosques Primarios Siembra Nothofagus pumilio Cambio Climático Cosecha Regeneración Natural Fenología Perturbación del Ecosistema Ordenación Forestal Tierra del Fuego Extreme Events Climate Fluctuations Adaptation Strategies Eventos Extremos Fluctuaciones Climáticas Estrategias de Adaptación Región Patagónica Rodríguez‑Souilla, Julián Chaves, Jimena Elizabeth Lencinas, María Vanessa Cellini, Juan Manuel Roig Junent, Fidel Alejandro Peri, Pablo Luis Martínez Pastur, Guillermo José Quality evaluation of Nothofagus pumilio seeds linked to forest management and climatic events |
| title | Quality evaluation of Nothofagus pumilio seeds linked to forest management and climatic events |
| title_full | Quality evaluation of Nothofagus pumilio seeds linked to forest management and climatic events |
| title_fullStr | Quality evaluation of Nothofagus pumilio seeds linked to forest management and climatic events |
| title_full_unstemmed | Quality evaluation of Nothofagus pumilio seeds linked to forest management and climatic events |
| title_short | Quality evaluation of Nothofagus pumilio seeds linked to forest management and climatic events |
| title_sort | quality evaluation of nothofagus pumilio seeds linked to forest management and climatic events |
| topic | Primary Forests Sowing Climate Change Harvesting Natural Regeneration Phenology Ecosystem Disturbance Forest Management Bosques Primarios Siembra Nothofagus pumilio Cambio Climático Cosecha Regeneración Natural Fenología Perturbación del Ecosistema Ordenación Forestal Tierra del Fuego Extreme Events Climate Fluctuations Adaptation Strategies Eventos Extremos Fluctuaciones Climáticas Estrategias de Adaptación Región Patagónica |
| url | http://hdl.handle.net/20.500.12123/16629 https://ecologicalprocesses.springeropen.com/articles/10.1186/s13717-024-00485-w https://doi.org/10.1186/s13717-024-00485-w |
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