Spatial-functional pattern of ecotonal riparian landscapes on Meridional Plateau, Southern Brazil

This study analyzes the Pitangui and Jotuba riparian zonesinthe Meridional Plateau, to create a landscape model of forest/field riparian ecotones. The areas were delineated from 2001 orthophotos (1:10,000), including all native vegetation in flooding limits of the lotic channels. The landscape units...

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Autores principales:	Katu Pereira,Tiaro, Segecin Moro,Rosemeri
Lenguaje:	English
Publicado:	Universidad Austral de Chile, Facultad de Ciencias Forestales 2012
Materias:	landscape ecology Campos Gerais landscape metrics natural fragmentation
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-92002012000300023
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spelling	oai:scielo:S0717-920020120003000232014-11-05Spatial-functional pattern of ecotonal riparian landscapes on Meridional Plateau, Southern BrazilKatu Pereira,TiaroSegecin Moro,Rosemeri landscape ecology Campos Gerais landscape metrics natural fragmentation This study analyzes the Pitangui and Jotuba riparian zonesinthe Meridional Plateau, to create a landscape model of forest/field riparian ecotones. The areas were delineated from 2001 orthophotos (1:10,000), including all native vegetation in flooding limits of the lotic channels. The landscape units (UP) were represented by the Alluvial Ombrophilous Mixed Forest metacommunity (FOMA) including as phytocoenosis both the riparian woody forest (FR) and hydrophilous vegetation (VH). Landscape metrics and statistical treatment were used to characterize landscapes and patches. To evaluate the FR patches we presumed a 30 m edge. The Pitangui River (1,072 ha) has double the riparian area of Jotuba River (539 ha), although proportionally both were UPs equivalent (40 % of FR and 60 % of VH). Both rivers have a large number of small rounded patches and relatively few large areas that trend to more complex and irregular shapes as the area increases. Also smaller patches are more spatially heterogeneous than the larger ones, and more aggregated along the river channel. 60 % of FR area on both rivers is under an edge effect: Pitangui has 91 core areas linked by 69 corridors and the Jotuba River has 53 core areas with 47 corridors. In the riparian zones, VH areas occupy the flood plains showing higher variability in size and spatial distribution. This summarizes the natural fragmentation of the riparian vegetation of regional rivers in Southern Brazil.info:eu-repo/semantics/openAccessUniversidad Austral de Chile, Facultad de Ciencias ForestalesBosque (Valdivia) v.33 n.3 20122012-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-92002012000300023en
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	landscape ecology Campos Gerais landscape metrics natural fragmentation
spellingShingle	landscape ecology Campos Gerais landscape metrics natural fragmentation Katu Pereira,Tiaro Segecin Moro,Rosemeri Spatial-functional pattern of ecotonal riparian landscapes on Meridional Plateau, Southern Brazil
description	This study analyzes the Pitangui and Jotuba riparian zonesinthe Meridional Plateau, to create a landscape model of forest/field riparian ecotones. The areas were delineated from 2001 orthophotos (1:10,000), including all native vegetation in flooding limits of the lotic channels. The landscape units (UP) were represented by the Alluvial Ombrophilous Mixed Forest metacommunity (FOMA) including as phytocoenosis both the riparian woody forest (FR) and hydrophilous vegetation (VH). Landscape metrics and statistical treatment were used to characterize landscapes and patches. To evaluate the FR patches we presumed a 30 m edge. The Pitangui River (1,072 ha) has double the riparian area of Jotuba River (539 ha), although proportionally both were UPs equivalent (40 % of FR and 60 % of VH). Both rivers have a large number of small rounded patches and relatively few large areas that trend to more complex and irregular shapes as the area increases. Also smaller patches are more spatially heterogeneous than the larger ones, and more aggregated along the river channel. 60 % of FR area on both rivers is under an edge effect: Pitangui has 91 core areas linked by 69 corridors and the Jotuba River has 53 core areas with 47 corridors. In the riparian zones, VH areas occupy the flood plains showing higher variability in size and spatial distribution. This summarizes the natural fragmentation of the riparian vegetation of regional rivers in Southern Brazil.
author	Katu Pereira,Tiaro Segecin Moro,Rosemeri
author_facet	Katu Pereira,Tiaro Segecin Moro,Rosemeri
author_sort	Katu Pereira,Tiaro
title	Spatial-functional pattern of ecotonal riparian landscapes on Meridional Plateau, Southern Brazil
title_short	Spatial-functional pattern of ecotonal riparian landscapes on Meridional Plateau, Southern Brazil
title_full	Spatial-functional pattern of ecotonal riparian landscapes on Meridional Plateau, Southern Brazil
title_fullStr	Spatial-functional pattern of ecotonal riparian landscapes on Meridional Plateau, Southern Brazil
title_full_unstemmed	Spatial-functional pattern of ecotonal riparian landscapes on Meridional Plateau, Southern Brazil
title_sort	spatial-functional pattern of ecotonal riparian landscapes on meridional plateau, southern brazil
publisher	Universidad Austral de Chile, Facultad de Ciencias Forestales
publishDate	2012
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-92002012000300023
work_keys_str_mv	AT katupereiratiaro spatialfunctionalpatternofecotonalriparianlandscapesonmeridionalplateausouthernbrazil AT segecinmororosemeri spatialfunctionalpatternofecotonalriparianlandscapesonmeridionalplateausouthernbrazil
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Spatial-functional pattern of ecotonal riparian landscapes on Meridional Plateau, Southern Brazil

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