Understory bamboo flowering provides a very narrow light window of opportunity for canopy - tree recruitment in a neotropical forest of Misiones, Argentina
Chusquea ramosissima is a native monocarpic bamboo species growing in subtropical forests of northeastern Argentina, which can dominate gaps and open forests in the region, particularly after human disturbance. This bamboo species started to flower in different areas of northeastern Argentina in 200...
| Otros Autores: | , , , , , , |
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| Formato: | Artículo |
| Lenguaje: | Inglés |
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| Acceso en línea: | http://ri.agro.uba.ar/files/intranet/articulo/2011Montti.pdf LINK AL EDITOR |
| Aporte de: | Registro referencial: Solicitar el recurso aquí |
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| 245 | 1 | 0 | |a Understory bamboo flowering provides a very narrow light window of opportunity for canopy - tree recruitment in a neotropical forest of Misiones, Argentina |
| 520 | |a Chusquea ramosissima is a native monocarpic bamboo species growing in subtropical forests of northeastern Argentina, which can dominate gaps and open forests in the region, particularly after human disturbance. This bamboo species started to flower in different areas of northeastern Argentina in 2001, with the flowering peak during 2002 and 2003 and small isolated flowering events still occurring until 2010. We studied the effects of C. ramosissima flowering and die-back on microclimate, litter decomposition, nutrient availability, sapling growth, abundance and regeneration of tree canopy species. We wanted to know how environmental conditions and ecosystem processes change through time after bamboo flowering and if bamboo die-back would favor regeneration of canopy trees. Twenty 50 x 50 m plots of flowering and non-flowering bamboo were permanently marked and vegetation dynamics as well as nutrient cycling and microclimate studies were performed. C. ramosissima die-back enhanced growth and reduced mortality rate of tree saplings during the first year after flowering. Only growth of tree saplings previously established was enhanced by the flowering event and tree-species richness and saplings abundance of canopy trees did not change as expected due to bamboo flowering. The short-term effect of tree saplings growth was likely due to incident solar radiation at the forest floor which doubled in the first year after the bamboo flowering event. Increased light availability at the forest floor simultaneously promoted the growth of other understory plants such as ferns, lianas and Piper spp. that rapidly colonized gaps and intercepted a percentage of the incident solar radiation after the first year, which together with an increased litter layer due to the senescence of the bamboo, may have inhibited establishment of new tree individuals and affected tree growth. Contrary to predictions, soil water, litter decomposition and soil nutrients were not significantly affected by bamboo flowering. Thus, successful tree regeneration in gaps following bamboo flowering appears to be restricted to a very narrow window of increased light availability [i.e., 1 year] before growth of other understory plants and rapid re-colonization of bamboo. Changes in resource availability, and the opportunity for overstory regeneration after bamboo flowering events appears to depend on climatic and community characteristics of the ecosystem where the flowering event occurs and also, on the flowering patterns and their synchronicity. | ||
| 653 | 0 | |a BAMBOO FLOWERING | |
| 653 | 0 | |a CHUSQUEA RAMOSISSIMA | |
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| 653 | 0 | |a REGENERATION | |
| 653 | 0 | |a SEMI-DECIDUOUS ATLANTIC FOREST | |
| 653 | 0 | |a SOIL NUTRIENT DYNAMICS | |
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| 653 | 0 | |a DIES | |
| 653 | 0 | |a ECOSYSTEMS | |
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| 653 | 0 | |a INCIDENT SOLAR RADIATION | |
| 653 | 0 | |a NUTRIENTS | |
| 653 | 0 | |a PLANT EXTRACTS | |
| 653 | 0 | |a SOIL MOISTURE | |
| 653 | 0 | |a SUN | |
| 653 | 0 | |a REFORESTATION | |
| 653 | 0 | |a ABUNDANCE | |
| 653 | 0 | |a DIEBACK | |
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| 653 | 0 | |a HABITAT FRAGMENTATION | |
| 653 | 0 | |a HABITAT MANAGEMENT | |
| 653 | 0 | |a HUMAN ACTIVITY | |
| 653 | 0 | |a LIGHT AVAILABILITY | |
| 653 | 0 | |a MORTALITY | |
| 653 | 0 | |a NUTRIENT CYCLING | |
| 653 | 0 | |a RECRUITMENT [POPULATION DYNAMICS] | |
| 653 | 0 | |a RESOURCE AVAILABILITY | |
| 653 | 0 | |a SAPLING | |
| 653 | 0 | |a SENESCENCE | |
| 653 | 0 | |a SOIL NUTRIENT | |
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| 653 | 0 | |a SOLAR RADIATION | |
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| 653 | 0 | |a UNDERSTORY | |
| 653 | 0 | |a ARGENTINA | |
| 653 | 0 | |a MISIONES [ARGENTINA] | |
| 653 | 0 | |a FILICOPHYTA | |
| 653 | 0 | |a PIPERACEAE | |
| 700 | 1 | |a Montti, Lía F. |9 45174 | |
| 700 | 1 | |a Campanello, Paula I. |9 49476 | |
| 700 | 1 | |a Gatti, M. Genoveva |9 49477 | |
| 700 | 1 | |9 72099 |a Blundo, Cecilia | |
| 700 | 1 | |9 48259 |a Austin, Amy Theresa | |
| 700 | 1 | |9 21158 |a Sala, Osvaldo Esteban | |
| 700 | 1 | |9 47415 |a Goldstein, Guillermo Hernán | |
| 773 | |t Forest Ecology and Management |g Vol.262, no.8 (2011), p.1360-1369 | ||
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| 900 | |a ^tUnderstory bamboo flowering provides a very narrow light window of opportunity for canopy-tree recruitment in a neotropical forest of Misiones, Argentina | ||
| 900 | |a ^aMontti^bL. | ||
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| 900 | |a ^aAustin^bA. T. | ||
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| 900 | |a ^aGoldstein^bG. | ||
| 900 | |a ^aMontti^bL.^tLaboratorio de EcologÃa Funcional [LEF], Departamento de EcologÃa Genética y Evolución, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria Pab. II 2o piso, C1428EHA Buenos Aires, Argentina | ||
| 900 | |a ^aCampanello^bP.I.^tConsejo Nacional de Investigaciones CientÃficas y Técnicas [CONICET], Argentina | ||
| 900 | |a ^aGatti^bM.G.^tInstituto de BiologÃa Subtropical [IBS], Facultad de Ciencias Forestales, Universidad Nacional de Misiones, Andresito 21, Puerto Iguazú, Misiones 3370, Argentina | ||
| 900 | |a ^aBlundo^bC.^tInstituto de EcologÃa Regional [IER], Universidad Nacional de Tucumán, CC 34, 4107 Yerba Buena Tucumán, Argentina | ||
| 900 | |a ^aAustin^bA.T.^tDepartment of Biology, University of Miami, P.O. Box 249118, Coral Gables, FL 33124, United States | ||
| 900 | |a ^aSala^bO.E.^tIFEVA-Facultad de AgronomÃa, Universidad de Buenos Aires, Av. San MartÃn 4453, Buenos Aires, Argentina | ||
| 900 | |a ^aGoldstein^bG.^tSchool of Life Sciences and School of Sustainability, Arizona State University, Tempe, AZ, United States | ||
| 900 | |a ^tForest Ecology and Management^cFor. Ecol. Manage. | ||
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| 900 | |a Vol. 262, no. 8 | ||
| 900 | |a 1369 | ||
| 900 | |a BAMBOO FLOWERING | ||
| 900 | |a CHUSQUEA RAMOSISSIMA | ||
| 900 | |a ENVIRONMENTAL CHANGES | ||
| 900 | |a REGENERATION | ||
| 900 | |a SEMI-DECIDUOUS ATLANTIC FOREST | ||
| 900 | |a SOIL NUTRIENT DYNAMICS | ||
| 900 | |a ENVIRONMENTAL CHANGE | ||
| 900 | |a SEMI-DECIDUOUS | ||
| 900 | |a BAMBOO | ||
| 900 | |a DIES | ||
| 900 | |a ECOSYSTEMS | ||
| 900 | |a FLOORS | ||
| 900 | |a INCIDENT SOLAR RADIATION | ||
| 900 | |a NUTRIENTS | ||
| 900 | |a PLANT EXTRACTS | ||
| 900 | |a SOIL MOISTURE | ||
| 900 | |a SUN | ||
| 900 | |a REFORESTATION | ||
| 900 | |a ABUNDANCE | ||
| 900 | |a DIEBACK | ||
| 900 | |a FLOWERING | ||
| 900 | |a FOREST FLOOR | ||
| 900 | |a HABITAT FRAGMENTATION | ||
| 900 | |a HABITAT MANAGEMENT | ||
| 900 | |a HUMAN ACTIVITY | ||
| 900 | |a LIGHT AVAILABILITY | ||
| 900 | |a MORTALITY | ||
| 900 | |a NUTRIENT CYCLING | ||
| 900 | |a RECRUITMENT [POPULATION DYNAMICS] | ||
| 900 | |a RESOURCE AVAILABILITY | ||
| 900 | |a SAPLING | ||
| 900 | |a SENESCENCE | ||
| 900 | |a SOIL NUTRIENT | ||
| 900 | |a SOIL WATER | ||
| 900 | |a SOLAR RADIATION | ||
| 900 | |a SPECIES RICHNESS | ||
| 900 | |a UNDERSTORY | ||
| 900 | |a ARGENTINA | ||
| 900 | |a MISIONES [ARGENTINA] | ||
| 900 | |a FILICOPHYTA | ||
| 900 | |a PIPERACEAE | ||
| 900 | |a Chusquea ramosissima is a native monocarpic bamboo species growing in subtropical forests of northeastern Argentina, which can dominate gaps and open forests in the region, particularly after human disturbance. This bamboo species started to flower in different areas of northeastern Argentina in 2001, with the flowering peak during 2002 and 2003 and small isolated flowering events still occurring until 2010. We studied the effects of C. ramosissima flowering and die-back on microclimate, litter decomposition, nutrient availability, sapling growth, abundance and regeneration of tree canopy species. We wanted to know how environmental conditions and ecosystem processes change through time after bamboo flowering and if bamboo die-back would favor regeneration of canopy trees. Twenty 50 x 50 m plots of flowering and non-flowering bamboo were permanently marked and vegetation dynamics as well as nutrient cycling and microclimate studies were performed. C. ramosissima die-back enhanced growth and reduced mortality rate of tree saplings during the first year after flowering. Only growth of tree saplings previously established was enhanced by the flowering event and tree-species richness and saplings abundance of canopy trees did not change as expected due to bamboo flowering. The short-term effect of tree saplings growth was likely due to incident solar radiation at the forest floor which doubled in the first year after the bamboo flowering event. Increased light availability at the forest floor simultaneously promoted the growth of other understory plants such as ferns, lianas and Piper spp. that rapidly colonized gaps and intercepted a percentage of the incident solar radiation after the first year, which together with an increased litter layer due to the senescence of the bamboo, may have inhibited establishment of new tree individuals and affected tree growth. Contrary to predictions, soil water, litter decomposition and soil nutrients were not significantly affected by bamboo flowering. Thus, successful tree regeneration in gaps following bamboo flowering appears to be restricted to a very narrow window of increased light availability [i.e., 1 year] before growth of other understory plants and rapid re-colonization of bamboo. Changes in resource availability, and the opportunity for overstory regeneration after bamboo flowering events appears to depend on climatic and community characteristics of the ecosystem where the flowering event occurs and also, on the flowering patterns and their synchronicity. | ||
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