Flowering and seeding patterns in primary, secondary and silvopastoral managed Nothofagus antarctica forests in South Patagonia

The success of the 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 understa...

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Published in:New Zealand Journal of Botany
Main Authors: Soler Esteban, Rosina Matilde, Martínez Pastur, Guillermo José, Lencinas, María Vanessa, Peri, Pablo Luis
Format: Article in Journal/Newspaper
Language:English
Published: Taylor & Francis
Subjects:
Online Access:http://hdl.handle.net/11336/12800
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spelling ftconicet:oai:ri.conicet.gov.ar:11336/12800 2023-10-09T21:47:15+02:00 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 application/pdf http://hdl.handle.net/11336/12800 eng eng Taylor & Francis info:eu-repo/semantics/altIdentifier/url/http://www.tandfonline.com/doi/abs/10.1080/0028825X.2010.482959 info:eu-repo/semantics/altIdentifier/url/http://dx.doi.org/10.1080/0028825X.2010.482959 http://hdl.handle.net/11336/12800 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; Taylor & Francis; New Zealand Journal of Botany; 48; 2; 4-2010; 63-73 0028-825X 1175-8643 info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ Silviculture Silvopastoral Management Insect Foraging Bird Consumption Seed Quality Regeneration Cycles https://purl.org/becyt/ford/4.1 https://purl.org/becyt/ford/4 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.1080/0028825X.2010.482959 2023-09-24T18:38:52Z The success of the 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 of this 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 of immature fruits (11–14%). Seeding was greater in secondary forests (11.4 million ha−1), but managed stands presented a higher percentage of flowers 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. Fil: Soler Esteban, Rosina Matilde. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina Fil: Martínez Pastur, Guillermo José. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina Fil: Lencinas, María Vanessa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina Fil: Peri, Pablo Luis. Instituto Nacional de Tecnología Agropecuaria; Argentina. Universidad Nacional de la Patagonia Austral; Argentina Article in Journal/Newspaper Antarc* Antarctica CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Austral Patagonia Argentina Martínez ENVELOPE(-62.183,-62.183,-64.650,-64.650) Pablo ENVELOPE(-63.717,-63.717,-64.283,-64.283) Soler ENVELOPE(-63.000,-63.000,-64.283,-64.283) New Zealand Journal of Botany 48 2 63 73
institution Open Polar
collection CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
op_collection_id ftconicet
language English
topic Silviculture
Silvopastoral Management
Insect Foraging
Bird Consumption
Seed Quality
Regeneration Cycles
https://purl.org/becyt/ford/4.1
https://purl.org/becyt/ford/4
spellingShingle Silviculture
Silvopastoral Management
Insect Foraging
Bird Consumption
Seed Quality
Regeneration Cycles
https://purl.org/becyt/ford/4.1
https://purl.org/becyt/ford/4
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
topic_facet Silviculture
Silvopastoral Management
Insect Foraging
Bird Consumption
Seed Quality
Regeneration Cycles
https://purl.org/becyt/ford/4.1
https://purl.org/becyt/ford/4
description The success of the 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 of this 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 of immature fruits (11–14%). Seeding was greater in secondary forests (11.4 million ha−1), but managed stands presented a higher percentage of flowers 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. Fil: Soler Esteban, Rosina Matilde. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina Fil: Martínez Pastur, Guillermo José. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina Fil: Lencinas, María Vanessa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina Fil: Peri, Pablo Luis. Instituto Nacional de Tecnología Agropecuaria; Argentina. Universidad Nacional de la Patagonia Austral; Argentina
format Article in Journal/Newspaper
author Soler Esteban, Rosina Matilde
Martínez Pastur, Guillermo José
Lencinas, María Vanessa
Peri, Pablo Luis
author_facet Soler Esteban, Rosina Matilde
Martínez Pastur, Guillermo José
Lencinas, María Vanessa
Peri, Pablo Luis
author_sort Soler Esteban, Rosina Matilde
title 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_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_sort flowering and seeding patterns in primary, secondary and silvopastoral managed nothofagus antarctica forests in south patagonia
publisher Taylor & Francis
url http://hdl.handle.net/11336/12800
long_lat ENVELOPE(-62.183,-62.183,-64.650,-64.650)
ENVELOPE(-63.717,-63.717,-64.283,-64.283)
ENVELOPE(-63.000,-63.000,-64.283,-64.283)
geographic Austral
Patagonia
Argentina
Martínez
Pablo
Soler
geographic_facet Austral
Patagonia
Argentina
Martínez
Pablo
Soler
genre Antarc*
Antarctica
genre_facet Antarc*
Antarctica
op_relation info:eu-repo/semantics/altIdentifier/url/http://www.tandfonline.com/doi/abs/10.1080/0028825X.2010.482959
info:eu-repo/semantics/altIdentifier/url/http://dx.doi.org/10.1080/0028825X.2010.482959
http://hdl.handle.net/11336/12800
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; Taylor & Francis; New Zealand Journal of Botany; 48; 2; 4-2010; 63-73
0028-825X
1175-8643
op_rights info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
op_doi https://doi.org/10.1080/0028825X.2010.482959
container_title New Zealand Journal of Botany
container_volume 48
container_issue 2
container_start_page 63
op_container_end_page 73
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