Livestock exclusion in mixed forests of northern Patagonia under silvopastoral use: Structural and functional responses of vegetation
Closures in temperate forests have been widely used to evaluate the effects of livestock on conservation and restoration objectives, but their use with management objectives in integrated productive systems in native forests has been poorly studied. Given that the studies are concentrated in the northern hemisphere, it is essential to advance local research to provide management tools to ensure the continuity of the forest component and the functionality of the system. Therefore, we analyzed the response of vegetation to the temporary exclusion of livestock in silvopastoral systems in mixed Austrocedrus chilensis - Nothofagus dombeyi forests of northern Patagonia. We evaluated changes in the structure, composition and functionality of understory vegetation, as well as in the regeneration of dominant canopy species. We selected three medium-sized estates, and in each one established three plots and three paired closures, which were monitored for three years. Closures significantly affected the height growth of N. dombeyi saplings, and marginally the survival of A. chilensis seedlings, while the species richness, composition, cover and functional diversity of the understory showed no changes. The coverage of palatable species was not affected, possibly due to greater limitation by light than herbivory and the short time of exclusion. Under the conditions studied, short-term community closures do not appear to be a suitable tool in farm management to promote forage production or regeneration of the most sensitive forest species.
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Asociación Argentina de Ecología
2024
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Arpigiani, Daniela Chillo, Verónica Soler, Rosina Amoroso, Mariano M. |
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Arpigiani, Daniela Chillo, Verónica Soler, Rosina Amoroso, Mariano M. Livestock exclusion in mixed forests of northern Patagonia under silvopastoral use: Structural and functional responses of vegetation |
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Arpigiani, Daniela Chillo, Verónica Soler, Rosina Amoroso, Mariano M. |
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Arpigiani, Daniela |
| title |
Livestock exclusion in mixed forests of northern Patagonia under silvopastoral use: Structural and functional responses of vegetation |
| title_short |
Livestock exclusion in mixed forests of northern Patagonia under silvopastoral use: Structural and functional responses of vegetation |
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Livestock exclusion in mixed forests of northern Patagonia under silvopastoral use: Structural and functional responses of vegetation |
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Livestock exclusion in mixed forests of northern Patagonia under silvopastoral use: Structural and functional responses of vegetation |
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Livestock exclusion in mixed forests of northern Patagonia under silvopastoral use: Structural and functional responses of vegetation |
| title_sort |
livestock exclusion in mixed forests of northern patagonia under silvopastoral use: structural and functional responses of vegetation |
| description |
Closures in temperate forests have been widely used to evaluate the effects of livestock on conservation and restoration objectives, but their use with management objectives in integrated productive systems in native forests has been poorly studied. Given that the studies are concentrated in the northern hemisphere, it is essential to advance local research to provide management tools to ensure the continuity of the forest component and the functionality of the system. Therefore, we analyzed the response of vegetation to the temporary exclusion of livestock in silvopastoral systems in mixed Austrocedrus chilensis - Nothofagus dombeyi forests of northern Patagonia. We evaluated changes in the structure, composition and functionality of understory vegetation, as well as in the regeneration of dominant canopy species. We selected three medium-sized estates, and in each one established three plots and three paired closures, which were monitored for three years. Closures significantly affected the height growth of N. dombeyi saplings, and marginally the survival of A. chilensis seedlings, while the species richness, composition, cover and functional diversity of the understory showed no changes. The coverage of palatable species was not affected, possibly due to greater limitation by light than herbivory and the short time of exclusion. Under the conditions studied, short-term community closures do not appear to be a suitable tool in farm management to promote forage production or regeneration of the most sensitive forest species. |
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Asociación Argentina de Ecología |
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2024 |
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https://ojs.ecologiaaustral.com.ar/index.php/Ecologia_Austral/article/view/2290 |
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AT arpigianidaniela livestockexclusioninmixedforestsofnorthernpatagoniaundersilvopastoralusestructuralandfunctionalresponsesofvegetation AT chilloveronica livestockexclusioninmixedforestsofnorthernpatagoniaundersilvopastoralusestructuralandfunctionalresponsesofvegetation AT solerrosina livestockexclusioninmixedforestsofnorthernpatagoniaundersilvopastoralusestructuralandfunctionalresponsesofvegetation AT amorosomarianom livestockexclusioninmixedforestsofnorthernpatagoniaundersilvopastoralusestructuralandfunctionalresponsesofvegetation AT arpigianidaniela exclusionalganadoenbosquesmixtosdepatagonianortebajousosilvopastorilrespuestasestructuralesyfuncionalesdelavegetacion AT chilloveronica exclusionalganadoenbosquesmixtosdepatagonianortebajousosilvopastorilrespuestasestructuralesyfuncionalesdelavegetacion AT solerrosina exclusionalganadoenbosquesmixtosdepatagonianortebajousosilvopastorilrespuestasestructuralesyfuncionalesdelavegetacion AT amorosomarianom exclusionalganadoenbosquesmixtosdepatagonianortebajousosilvopastorilrespuestasestructuralesyfuncionalesdelavegetacion |
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rev-ecoaus-article-22902024-06-22T20:54:34Z Livestock exclusion in mixed forests of northern Patagonia under silvopastoral use: Structural and functional responses of vegetation Exclusión al ganado en bosques mixtos de Patagonia norte bajo uso silvopastoril: Respuestas estructurales y funcionales de la vegetación Arpigiani, Daniela Chillo, Verónica Soler, Rosina Amoroso, Mariano M. clausura ciprés de la cordillera regeneración diversidad funcional sotobosque Coihue closures understory vegetation Ciprés de la Cordillera Coihue regeneration functional diversity Closures in temperate forests have been widely used to evaluate the effects of livestock on conservation and restoration objectives, but their use with management objectives in integrated productive systems in native forests has been poorly studied. Given that the studies are concentrated in the northern hemisphere, it is essential to advance local research to provide management tools to ensure the continuity of the forest component and the functionality of the system. Therefore, we analyzed the response of vegetation to the temporary exclusion of livestock in silvopastoral systems in mixed Austrocedrus chilensis - Nothofagus dombeyi forests of northern Patagonia. We evaluated changes in the structure, composition and functionality of understory vegetation, as well as in the regeneration of dominant canopy species. We selected three medium-sized estates, and in each one established three plots and three paired closures, which were monitored for three years. Closures significantly affected the height growth of N. dombeyi saplings, and marginally the survival of A. chilensis seedlings, while the species richness, composition, cover and functional diversity of the understory showed no changes. The coverage of palatable species was not affected, possibly due to greater limitation by light than herbivory and the short time of exclusion. Under the conditions studied, short-term community closures do not appear to be a suitable tool in farm management to promote forage production or regeneration of the most sensitive forest species. Las clausuras en bosques templados se han usado con frecuencia para evaluar los efectos del ganado con objetivos de conservación y restauración. Sin embargo, su empleo con objetivos de manejo en sistemas productivos integrados a bosques nativos está poco estudiado. Dado que los estudios se concentran en el hemisferio norte, es fundamental avanzar en investigaciones locales que aporten herramientas de manejo que garanticen la continuidad del componente forestal y la funcionalidad del sistema. Por ello, analizamos la respuesta de la vegetación a la exclusión temporal del ganado en sistemas silvopastoriles en bosques mixtos de Austrocedrus chilensis - Nothofagus dombeyi de la Patagonia norte. Evaluamos cambios en la estructura, la composición y la funcionalidad de la vegetación del sotobosque, así como en la regeneración de las especies dominantes del dosel. Seleccionamos tres predios de productores medianos y en cada uno establecimos parcelas abiertas y clausuras pareadas que se monitorearon durante tres años. Las clausuras afectaron de forma significativa el crecimiento en altura de los renovales de N. dombeyi y marginalmente la supervivencia de plántulas de A. chilensis, mientras que la riqueza de especies, la composición, la cobertura y la diversidad funcional del sotobosque no mostraron cambios. La cobertura de especies palatables no se vio afectada, posiblemente debido a la mayor limitación por luz que por la herbivoría y al corto tiempo de exclusión analizado. Bajo las condiciones estudiadas, la exclusión comunitaria de corto plazo no parece una herramienta conveniente en un manejo predial para promover la producción de forraje o la regeneración de las especies forestales más sensibles. Asociación Argentina de Ecología 2024-05-16 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articles Artículos application/pdf application/pdf https://ojs.ecologiaaustral.com.ar/index.php/Ecologia_Austral/article/view/2290 10.25260/EA.24.34.2.0.2290 Ecología Austral; In Press; 213-227 Ecología Austral; En Prensa; 213-227 1667-782X 0327-5477 spa https://ojs.ecologiaaustral.com.ar/index.php/Ecologia_Austral/article/view/2290/1491 https://ojs.ecologiaaustral.com.ar/index.php/Ecologia_Austral/article/view/2290/1492 Derechos de autor 2024 Daniela Arpigiani, Verónica Chillo, Rosina Soler, Mariano M. Amoroso https://creativecommons.org/licenses/by/4.0/deed.es |