Effect of large and small herbivores on seed and seedling survival of Beilschmiedia miersii in central Chile

In the Mediterranean region of Chile, populations of the threatened tree Beilschmiedia miersii have been strongly affected by anthropic disturbances, causing a critical state of conservation. Herbivory has been proposed as the main factor that currently limits the regeneration of this species. We st...

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Autores principales: Morales,Narkis S, Becerra,Pablo I, Arellano,Eduardo C, Gilabert,Horacio B
Lenguaje:English
Publicado: Universidad Austral de Chile, Facultad de Ciencias Forestales 2015
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Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-92002015000100014
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spelling oai:scielo:S0717-920020150001000142015-05-12Effect of large and small herbivores on seed and seedling survival of Beilschmiedia miersii in central ChileMorales,Narkis SBecerra,Pablo IArellano,Eduardo CGilabert,Horacio B Beilschmiedia miersii herbivory seed predation seedling survival restoration In the Mediterranean region of Chile, populations of the threatened tree Beilschmiedia miersii have been strongly affected by anthropic disturbances, causing a critical state of conservation. Herbivory has been proposed as the main factor that currently limits the regeneration of this species. We studied the effect of large vs. small herbivores on seed and seedling survival of B. miersii under two contrasting habitat conditions (forest and shrubland), using plots with fenced enclosures which differentially excluded mammalian herbivores according to body size. Results show that herbivory had a significant negative effect on B. miersii. Both large and small herbivores had a significant negative effect on seeds and seedlings in the shrub habitat. In the forest habitat small herbivores had a significant negative effect only on seeds. Our results suggest that different herbivores can have varying effects on seed and seedling survival, but these effects can vary spatially, probably due to different herbivore assemblage of each habitat. Results suggest that restoration plans for B. miersii need to be adjusted according to local conditions.info:eu-repo/semantics/openAccessUniversidad Austral de Chile, Facultad de Ciencias ForestalesBosque (Valdivia) v.36 n.1 20152015-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-92002015000100014en10.4067/S0717-92002015000100014
institution Scielo Chile
collection Scielo Chile
language English
topic Beilschmiedia miersii
herbivory
seed predation
seedling survival
restoration
spellingShingle Beilschmiedia miersii
herbivory
seed predation
seedling survival
restoration
Morales,Narkis S
Becerra,Pablo I
Arellano,Eduardo C
Gilabert,Horacio B
Effect of large and small herbivores on seed and seedling survival of Beilschmiedia miersii in central Chile
description In the Mediterranean region of Chile, populations of the threatened tree Beilschmiedia miersii have been strongly affected by anthropic disturbances, causing a critical state of conservation. Herbivory has been proposed as the main factor that currently limits the regeneration of this species. We studied the effect of large vs. small herbivores on seed and seedling survival of B. miersii under two contrasting habitat conditions (forest and shrubland), using plots with fenced enclosures which differentially excluded mammalian herbivores according to body size. Results show that herbivory had a significant negative effect on B. miersii. Both large and small herbivores had a significant negative effect on seeds and seedlings in the shrub habitat. In the forest habitat small herbivores had a significant negative effect only on seeds. Our results suggest that different herbivores can have varying effects on seed and seedling survival, but these effects can vary spatially, probably due to different herbivore assemblage of each habitat. Results suggest that restoration plans for B. miersii need to be adjusted according to local conditions.
author Morales,Narkis S
Becerra,Pablo I
Arellano,Eduardo C
Gilabert,Horacio B
author_facet Morales,Narkis S
Becerra,Pablo I
Arellano,Eduardo C
Gilabert,Horacio B
author_sort Morales,Narkis S
title Effect of large and small herbivores on seed and seedling survival of Beilschmiedia miersii in central Chile
title_short Effect of large and small herbivores on seed and seedling survival of Beilschmiedia miersii in central Chile
title_full Effect of large and small herbivores on seed and seedling survival of Beilschmiedia miersii in central Chile
title_fullStr Effect of large and small herbivores on seed and seedling survival of Beilschmiedia miersii in central Chile
title_full_unstemmed Effect of large and small herbivores on seed and seedling survival of Beilschmiedia miersii in central Chile
title_sort effect of large and small herbivores on seed and seedling survival of beilschmiedia miersii in central chile
publisher Universidad Austral de Chile, Facultad de Ciencias Forestales
publishDate 2015
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-92002015000100014
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