Denied density-dependent seedling recruitment in a fragmented forest does not decrease seedling diversity

Negative density-dependent relationships in plant communities are currently claimed as an important mechanism for the maintenance of plant diversity. However, anthropogenic perturbations such as forest fragmentation might modify such relationships. We evaluated density-dependent relationships betwee...

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Autores principales:	VALDIVIA,CARLOS E, SIMONETTI,JAVIER A
Lenguaje:	English
Publicado:	Sociedad de Biología de Chile 2011
Materias:	density-dependent recruitment diversity forest fragmentation seedlings seeds
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2011000200012
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spelling	oai:scielo:S0716-078X20110002000122011-09-13Denied density-dependent seedling recruitment in a fragmented forest does not decrease seedling diversityVALDIVIA,CARLOS ESIMONETTI,JAVIER A density-dependent recruitment diversity forest fragmentation seedlings seeds Negative density-dependent relationships in plant communities are currently claimed as an important mechanism for the maintenance of plant diversity. However, anthropogenic perturbations such as forest fragmentation might modify such relationships. We evaluated density-dependent relationships between seed and seedling abundance of a tree assemblage in a fragmented forest for estimating seed-to-seedling transitions and their effects on seedling richness. In continuous forest, two out of four and one out of four species presented significant or a tendency to exhibit negative seedling recruitment which is in agreement with other temperate and tropical forests. In forest fragments (1-6 ha), however, this relationship was uncoupled. Seedling richness and diversity, assessed through Shannon-Wiener Index, did not differ between both types of sites. Therefore, forest fragmentation negatively affected seedling recruitment by uncoupling seed-to-seedling transitions, but not by diminishing seedling diversity. This leads to considering the role of density-dependent relationships for the maintenance of plant diversity in communities and claims for including forest fragments into conservation programmes.info:eu-repo/semantics/openAccessSociedad de Biología de ChileRevista chilena de historia natural v.84 n.2 20112011-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2011000200012en10.4067/S0716-078X2011000200012
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	density-dependent recruitment diversity forest fragmentation seedlings seeds
spellingShingle	density-dependent recruitment diversity forest fragmentation seedlings seeds VALDIVIA,CARLOS E SIMONETTI,JAVIER A Denied density-dependent seedling recruitment in a fragmented forest does not decrease seedling diversity
description	Negative density-dependent relationships in plant communities are currently claimed as an important mechanism for the maintenance of plant diversity. However, anthropogenic perturbations such as forest fragmentation might modify such relationships. We evaluated density-dependent relationships between seed and seedling abundance of a tree assemblage in a fragmented forest for estimating seed-to-seedling transitions and their effects on seedling richness. In continuous forest, two out of four and one out of four species presented significant or a tendency to exhibit negative seedling recruitment which is in agreement with other temperate and tropical forests. In forest fragments (1-6 ha), however, this relationship was uncoupled. Seedling richness and diversity, assessed through Shannon-Wiener Index, did not differ between both types of sites. Therefore, forest fragmentation negatively affected seedling recruitment by uncoupling seed-to-seedling transitions, but not by diminishing seedling diversity. This leads to considering the role of density-dependent relationships for the maintenance of plant diversity in communities and claims for including forest fragments into conservation programmes.
author	VALDIVIA,CARLOS E SIMONETTI,JAVIER A
author_facet	VALDIVIA,CARLOS E SIMONETTI,JAVIER A
author_sort	VALDIVIA,CARLOS E
title	Denied density-dependent seedling recruitment in a fragmented forest does not decrease seedling diversity
title_short	Denied density-dependent seedling recruitment in a fragmented forest does not decrease seedling diversity
title_full	Denied density-dependent seedling recruitment in a fragmented forest does not decrease seedling diversity
title_fullStr	Denied density-dependent seedling recruitment in a fragmented forest does not decrease seedling diversity
title_full_unstemmed	Denied density-dependent seedling recruitment in a fragmented forest does not decrease seedling diversity
title_sort	denied density-dependent seedling recruitment in a fragmented forest does not decrease seedling diversity
publisher	Sociedad de Biología de Chile
publishDate	2011
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2011000200012
work_keys_str_mv	AT valdiviacarlose denieddensitydependentseedlingrecruitmentinafragmentedforestdoesnotdecreaseseedlingdiversity AT simonettijaviera denieddensitydependentseedlingrecruitmentinafragmentedforestdoesnotdecreaseseedlingdiversity
_version_	1718439653590171648

Denied density-dependent seedling recruitment in a fragmented forest does not decrease seedling diversity

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