Flowering and seeding patterns in primary, secondary and silvopastoral managed Nothofagus antarctica forests in South Patagonia
The success ofthe reproductive process in trees depends on abiotic and biotic factors that determine the final outcome of natural regeneration. Silviculture alters biotic and abiotic factors and results in secondary forest structures. To effectively manage these forests, it is necessary to understan...
| Autores principales: | , , , |
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| Formato: | info:ar-repo/semantics/artículo |
| Lenguaje: | Inglés |
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Taylor & Francis
2022
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| Acceso en línea: | http://hdl.handle.net/20.500.12123/12859 https://www.tandfonline.com/doi/full/10.1080/0028825X.2010.482959 https://doi.org/10.1080/0028825X.2010.482959 |
| _version_ | 1855036836108304384 |
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| author | Soler Esteban, Rosina Matilde Martínez Pastur, Guillermo José Lencinas, María Vanessa Peri, Pablo Luis |
| author_browse | Lencinas, María Vanessa Martínez Pastur, Guillermo José Peri, Pablo Luis Soler Esteban, Rosina Matilde |
| author_facet | Soler Esteban, Rosina Matilde Martínez Pastur, Guillermo José Lencinas, María Vanessa Peri, Pablo Luis |
| author_sort | Soler Esteban, Rosina Matilde |
| collection | INTA Digital |
| description | The success ofthe reproductive process in trees depends on abiotic and biotic factors that determine the final outcome of natural regeneration. Silviculture alters biotic and abiotic factors and results in secondary forest structures. To effectively manage these forests, it is necessary to understand the bottlenecks in reproductive stages using a whole-cycle approach study. The aim ofthis study was to analyse flowering and seeding patterns in primary, secondary and silvopastoral managed Nothofagus antarctica forests, including investigating the pre-dispersion foraging of insects and birds, as well as abscised biomass production. A high percentage of
female flowers produced fruits (95 96%) in which the main loss factor before seeding was the abscission ofimmature fruits (11 14%). Seeding was greater in secondary forests (11.4 million ha1), but managed stands presented a higher percentage offlowers resulting in seeds (82%). However, secondary forests had a better seed quality (17% viable seeds), where the main loss factor was empty seeds in all treatments (39 50%). Biotic factors (foraging by insects and birds) were higher in disturbed than primary forests. Nothofagus antarctica produce large quantities of seeds, but abscised immature fruits and empty seeds due to self-incompatibility mechanisms
appeared as the major loss factors. |
| format | info:ar-repo/semantics/artículo |
| id | INTA12859 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| publisher | Taylor & Francis |
| publisherStr | Taylor & Francis |
| record_format | dspace |
| spelling | INTA128592022-09-13T10:29:41Z Flowering and seeding patterns in primary, secondary and silvopastoral managed Nothofagus antarctica forests in South Patagonia Soler Esteban, Rosina Matilde Martínez Pastur, Guillermo José Lencinas, María Vanessa Peri, Pablo Luis Silviculture Silvopastoral Systems Foraging Insecta Seed Quality Regeneration Biotic Factors Abiotic Factors Primary Forests Silvicultura Sistemas Silvopascícolas Búsqueda de Alimento Calidad de la Semilla Regeneración Factores Bióticos Factores Abióticos Bosque Primario Bird Consumption Consumo de Aves Región Patagónica The success ofthe reproductive process in trees depends on abiotic and biotic factors that determine the final outcome of natural regeneration. Silviculture alters biotic and abiotic factors and results in secondary forest structures. To effectively manage these forests, it is necessary to understand the bottlenecks in reproductive stages using a whole-cycle approach study. The aim ofthis study was to analyse flowering and seeding patterns in primary, secondary and silvopastoral managed Nothofagus antarctica forests, including investigating the pre-dispersion foraging of insects and birds, as well as abscised biomass production. A high percentage of female flowers produced fruits (95 96%) in which the main loss factor before seeding was the abscission ofimmature fruits (11 14%). Seeding was greater in secondary forests (11.4 million ha1), but managed stands presented a higher percentage offlowers resulting in seeds (82%). However, secondary forests had a better seed quality (17% viable seeds), where the main loss factor was empty seeds in all treatments (39 50%). Biotic factors (foraging by insects and birds) were higher in disturbed than primary forests. Nothofagus antarctica produce large quantities of seeds, but abscised immature fruits and empty seeds due to self-incompatibility mechanisms appeared as the major loss factors. EEA INTA Santa Cruz Fil: Soler Esteban, Rosina Matilde. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Centro Austral de Investigaciones Científicas (CADIC). Ushuaia, Tierra del Fuego; Argentina. Fil: Martínez Pastur, Guillermo José. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Centro Austral de Investigaciones Científicas (CADIC). Ushuaia, Tierra del Fuego; Argentina. Fil: Lencinas, María Vanessa. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Centro Austral de Investigaciones Científicas (CADIC). Ushuaia, Tierra del Fuego; Argentina. 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 (UNPA). Santa Cruz; Argentina. Fil: Peri, Pablo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Argentina. 2022-09-13T10:24:54Z 2022-09-13T10:24:54Z 2010-06-11 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/12859 https://www.tandfonline.com/doi/full/10.1080/0028825X.2010.482959 Soler Esteban R.; Martínez Pastur G.; Lencinas M.V.; Peri P.L. (2010) Flowering and seeding patterns in primary, secondary and silvopastoral managed Nothofagus antarctica forests in South Patagonia. New Zealand Journal of Botany 48(2): 63-73. 0028-825X 1175-8643 https://doi.org/10.1080/0028825X.2010.482959 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 Taylor & Francis New Zealand Journal of Botany 48 (2) : 63-73. (2010) |
| spellingShingle | Silviculture Silvopastoral Systems Foraging Insecta Seed Quality Regeneration Biotic Factors Abiotic Factors Primary Forests Silvicultura Sistemas Silvopascícolas Búsqueda de Alimento Calidad de la Semilla Regeneración Factores Bióticos Factores Abióticos Bosque Primario Bird Consumption Consumo de Aves Región Patagónica Soler Esteban, Rosina Matilde Martínez Pastur, Guillermo José Lencinas, María Vanessa Peri, Pablo Luis Flowering and seeding patterns in primary, secondary and silvopastoral managed Nothofagus antarctica forests in South Patagonia |
| title | Flowering and seeding patterns in primary, secondary and silvopastoral managed Nothofagus antarctica forests in South Patagonia |
| title_full | Flowering and seeding patterns in primary, secondary and silvopastoral managed Nothofagus antarctica forests in South Patagonia |
| title_fullStr | Flowering and seeding patterns in primary, secondary and silvopastoral managed Nothofagus antarctica forests in South Patagonia |
| title_full_unstemmed | Flowering and seeding patterns in primary, secondary and silvopastoral managed Nothofagus antarctica forests in South Patagonia |
| title_short | Flowering and seeding patterns in primary, secondary and silvopastoral managed Nothofagus antarctica forests in South Patagonia |
| title_sort | flowering and seeding patterns in primary secondary and silvopastoral managed nothofagus antarctica forests in south patagonia |
| topic | Silviculture Silvopastoral Systems Foraging Insecta Seed Quality Regeneration Biotic Factors Abiotic Factors Primary Forests Silvicultura Sistemas Silvopascícolas Búsqueda de Alimento Calidad de la Semilla Regeneración Factores Bióticos Factores Abióticos Bosque Primario Bird Consumption Consumo de Aves Región Patagónica |
| url | http://hdl.handle.net/20.500.12123/12859 https://www.tandfonline.com/doi/full/10.1080/0028825X.2010.482959 https://doi.org/10.1080/0028825X.2010.482959 |
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