Temporal changes in tree community structure and richness in a seasonally dry tropical forest in Minas Gerais, southeastern Brazil

Seasonally Dry Tropical Forests (SDTF) are gaining recognition as a habitat of global conservation significance. However, these forests often occur on rich soils, and are therefore prone to disturbance by agricultural activities. Across their range, many SDTFs are in various stages of regeneration,...

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Autores principales:	Santos,Paola F, Garcia,Paulo O, Santos,Rubens M, Morel,Jean D, Benício,Matheus H M, Apgaua,Deborah M G, Tng,David Y P
Lenguaje:	English
Publicado:	Universidad Austral de Chile, Facultad de Ciencias Forestales 2017
Materias:	forest ecology ecosystems dynamics forest regeneration remnant vegetation tropical tree diversity
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-92002017000300011
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spelling	oai:scielo:S0717-920020170003000112018-03-01Temporal changes in tree community structure and richness in a seasonally dry tropical forest in Minas Gerais, southeastern BrazilSantos,Paola FGarcia,Paulo OSantos,Rubens MMorel,Jean DBenício,Matheus H MApgaua,Deborah M GTng,David Y P forest ecology ecosystems dynamics forest regeneration remnant vegetation tropical tree diversity Seasonally Dry Tropical Forests (SDTF) are gaining recognition as a habitat of global conservation significance. However, these forests often occur on rich soils, and are therefore prone to disturbance by agricultural activities. Across their range, many SDTFs are in various stages of regeneration, although little is known about their regeneration dynamics and temporal change in general. To fill this knowledge gap, we studied the changes in species diversity and community structure of an SDTF tree community with a history of past selective logging located in northern Minas Gerais, Brazil. We hypothesized an increase in species diversity and biomass-related parameters, along with a reduction in stem density for the community after five years of regeneration. In 2005, we measured all trees (diameter ≥ 3.18 cm at 1.3 m) within twenty 20 x 20 m (400 m²) plots in the patch, and we remeasured the trees in 2010. Between the two censuses, we found no significant changes in species richness and diversity, suggesting that species accumulation had leveled out. However, we found significant gains in tree basal area and recruitment, suggesting continual regeneration. Diameter class distributions of the five most abundant tree species showed similar patterns. We conclude that past disturbances can have ongoing effects on SDTF vegetation, although inter-annual variations may also play a regulatory role on community dynamics.info:eu-repo/semantics/openAccessUniversidad Austral de Chile, Facultad de Ciencias ForestalesBosque (Valdivia) v.38 n.3 20172017-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-92002017000300011en10.4067/S0717-92002017000300011
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	forest ecology ecosystems dynamics forest regeneration remnant vegetation tropical tree diversity
spellingShingle	forest ecology ecosystems dynamics forest regeneration remnant vegetation tropical tree diversity Santos,Paola F Garcia,Paulo O Santos,Rubens M Morel,Jean D Benício,Matheus H M Apgaua,Deborah M G Tng,David Y P Temporal changes in tree community structure and richness in a seasonally dry tropical forest in Minas Gerais, southeastern Brazil
description	Seasonally Dry Tropical Forests (SDTF) are gaining recognition as a habitat of global conservation significance. However, these forests often occur on rich soils, and are therefore prone to disturbance by agricultural activities. Across their range, many SDTFs are in various stages of regeneration, although little is known about their regeneration dynamics and temporal change in general. To fill this knowledge gap, we studied the changes in species diversity and community structure of an SDTF tree community with a history of past selective logging located in northern Minas Gerais, Brazil. We hypothesized an increase in species diversity and biomass-related parameters, along with a reduction in stem density for the community after five years of regeneration. In 2005, we measured all trees (diameter ≥ 3.18 cm at 1.3 m) within twenty 20 x 20 m (400 m²) plots in the patch, and we remeasured the trees in 2010. Between the two censuses, we found no significant changes in species richness and diversity, suggesting that species accumulation had leveled out. However, we found significant gains in tree basal area and recruitment, suggesting continual regeneration. Diameter class distributions of the five most abundant tree species showed similar patterns. We conclude that past disturbances can have ongoing effects on SDTF vegetation, although inter-annual variations may also play a regulatory role on community dynamics.
author	Santos,Paola F Garcia,Paulo O Santos,Rubens M Morel,Jean D Benício,Matheus H M Apgaua,Deborah M G Tng,David Y P
author_facet	Santos,Paola F Garcia,Paulo O Santos,Rubens M Morel,Jean D Benício,Matheus H M Apgaua,Deborah M G Tng,David Y P
author_sort	Santos,Paola F
title	Temporal changes in tree community structure and richness in a seasonally dry tropical forest in Minas Gerais, southeastern Brazil
title_short	Temporal changes in tree community structure and richness in a seasonally dry tropical forest in Minas Gerais, southeastern Brazil
title_full	Temporal changes in tree community structure and richness in a seasonally dry tropical forest in Minas Gerais, southeastern Brazil
title_fullStr	Temporal changes in tree community structure and richness in a seasonally dry tropical forest in Minas Gerais, southeastern Brazil
title_full_unstemmed	Temporal changes in tree community structure and richness in a seasonally dry tropical forest in Minas Gerais, southeastern Brazil
title_sort	temporal changes in tree community structure and richness in a seasonally dry tropical forest in minas gerais, southeastern brazil
publisher	Universidad Austral de Chile, Facultad de Ciencias Forestales
publishDate	2017
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-92002017000300011
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Temporal changes in tree community structure and richness in a seasonally dry tropical forest in Minas Gerais, southeastern Brazil

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