Terrestrial bromeliads as seed accumulation microsites in a xerophytic forest of Southern Chaco, Argentina

The understory of the Schinopsis balansae forests of Southern Chaco is frequently covered by dense populations of two bromeliad species (Aechmea distichantha and Bromelia serra). These bromeliads usually act as traps capturing propagules and litter falling from the canopy. Some populations of these...

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Autores principales:	Barberis,Ignacio Martín, Boccanelli,Silvia Irene, Alzugaray,Claudia
Lenguaje:	English
Publicado:	Universidad Austral de Chile, Facultad de Ciencias Forestales 2011
Materias:	bromeliads Chaco seeds understory
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-92002011000100007
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spelling	oai:scielo:S0717-920020110001000072011-05-17Terrestrial bromeliads as seed accumulation microsites in a xerophytic forest of Southern Chaco, ArgentinaBarberis,Ignacio MartínBoccanelli,Silvia IreneAlzugaray,Claudia bromeliads Chaco seeds understory The understory of the Schinopsis balansae forests of Southern Chaco is frequently covered by dense populations of two bromeliad species (Aechmea distichantha and Bromelia serra). These bromeliads usually act as traps capturing propagules and litter falling from the canopy. Some populations of these bromeliad species have been removed to ease cattle management, without considering their possible effects on forest regeneration. Therefore, the objective of this work was to evaluate the importance of both bromeliads as microsites for seed accumulation of woody and herbaceous species. Ten plots with bromeliads were selected, where one soil sample and one plant of each species were taken. From the material collected among bromeliad leaves, the seeds and propagules were separated. Likewise, soil samples were washed and the seeds were separated from the litter collected. Seeds were determined to morphospecies and counted. There were 352 seeds (230 on bromeliads and 122 in the soil) from 48 species (10 woody and 38 herbaceous species). Seed abundance of woody species was higher on bromeliad plants (70 seeds) than on the soil (six seeds). In contrast, a higher richness of herbaceous species was recorded on the soil. Therefore, both bromeliads seem to be important microsites for seed accumulation of woody species. However, it is not known whether bromeliads are a safe site for seedling establishment.info:eu-repo/semantics/openAccessUniversidad Austral de Chile, Facultad de Ciencias ForestalesBosque (Valdivia) v.32 n.1 20112011-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-92002011000100007en10.4067/S0717-92002011000100007
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	bromeliads Chaco seeds understory
spellingShingle	bromeliads Chaco seeds understory Barberis,Ignacio Martín Boccanelli,Silvia Irene Alzugaray,Claudia Terrestrial bromeliads as seed accumulation microsites in a xerophytic forest of Southern Chaco, Argentina
description	The understory of the Schinopsis balansae forests of Southern Chaco is frequently covered by dense populations of two bromeliad species (Aechmea distichantha and Bromelia serra). These bromeliads usually act as traps capturing propagules and litter falling from the canopy. Some populations of these bromeliad species have been removed to ease cattle management, without considering their possible effects on forest regeneration. Therefore, the objective of this work was to evaluate the importance of both bromeliads as microsites for seed accumulation of woody and herbaceous species. Ten plots with bromeliads were selected, where one soil sample and one plant of each species were taken. From the material collected among bromeliad leaves, the seeds and propagules were separated. Likewise, soil samples were washed and the seeds were separated from the litter collected. Seeds were determined to morphospecies and counted. There were 352 seeds (230 on bromeliads and 122 in the soil) from 48 species (10 woody and 38 herbaceous species). Seed abundance of woody species was higher on bromeliad plants (70 seeds) than on the soil (six seeds). In contrast, a higher richness of herbaceous species was recorded on the soil. Therefore, both bromeliads seem to be important microsites for seed accumulation of woody species. However, it is not known whether bromeliads are a safe site for seedling establishment.
author	Barberis,Ignacio Martín Boccanelli,Silvia Irene Alzugaray,Claudia
author_facet	Barberis,Ignacio Martín Boccanelli,Silvia Irene Alzugaray,Claudia
author_sort	Barberis,Ignacio Martín
title	Terrestrial bromeliads as seed accumulation microsites in a xerophytic forest of Southern Chaco, Argentina
title_short	Terrestrial bromeliads as seed accumulation microsites in a xerophytic forest of Southern Chaco, Argentina
title_full	Terrestrial bromeliads as seed accumulation microsites in a xerophytic forest of Southern Chaco, Argentina
title_fullStr	Terrestrial bromeliads as seed accumulation microsites in a xerophytic forest of Southern Chaco, Argentina
title_full_unstemmed	Terrestrial bromeliads as seed accumulation microsites in a xerophytic forest of Southern Chaco, Argentina
title_sort	terrestrial bromeliads as seed accumulation microsites in a xerophytic forest of southern chaco, argentina
publisher	Universidad Austral de Chile, Facultad de Ciencias Forestales
publishDate	2011
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-92002011000100007
work_keys_str_mv	AT barberisignaciomartin terrestrialbromeliadsasseedaccumulationmicrositesinaxerophyticforestofsouthernchacoargentina AT boccanellisilviairene terrestrialbromeliadsasseedaccumulationmicrositesinaxerophyticforestofsouthernchacoargentina AT alzugarayclaudia terrestrialbromeliadsasseedaccumulationmicrositesinaxerophyticforestofsouthernchacoargentina
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Terrestrial bromeliads as seed accumulation microsites in a xerophytic forest of Southern Chaco, Argentina

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