Woody vegetation structure and composition of the last relicts of Espinal vegetation in subtropical Argentina

Until the beginning of the twentieth century there were extensive subtropical seasonal thorny forests surrounding the Pampas grasslands of Argentina, known as the 'Espinal'. In central Argentina there still exist relicts of the Espinal, belonging to the 'Entrerrianense District'....

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Detalles Bibliográficos
Autor principal:	Noetinger, María Sol
Publicado:	2009
Materias:	Celtis tala Conservation Espinal forest Exotic species invasion Fire Juveniles Trithrinax palms
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09603115_v_n_p1_Lewis http://hdl.handle.net/20.500.12110/paper_09603115_v_n_p1_Lewis
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_09603115_v_n_p1_Lewis
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spelling	paper:paper_09603115_v_n_p1_Lewis2023-06-08T15:57:39Z Woody vegetation structure and composition of the last relicts of Espinal vegetation in subtropical Argentina Noetinger, María Sol Celtis tala Conservation Espinal forest Exotic species invasion Fire Juveniles Trithrinax palms Until the beginning of the twentieth century there were extensive subtropical seasonal thorny forests surrounding the Pampas grasslands of Argentina, known as the 'Espinal'. In central Argentina there still exist relicts of the Espinal, belonging to the 'Entrerrianense District'. These forests were never described or analyzed in detail. In 2004 we studied 10 randomly located plots of 50 × 2 m. All individuals and stems of woody species were counted and their diameters at breast height (DBH) were measured; individuals with <1 cm DBH were considered juveniles. We recorded 2,300 woody individuals/ha corresponding to 12 species. The more constant species are the palm Trithrinax campestris (100%), Celtis tala (90%), Prosopis alba and Celtis pallida (both 50%). The plots are relatively homogeneous, but once classified with cluster analysis two groups are formed according to the relative abundance of C. tala and T. campestris; the latter species is more frequent in more open or fire-disturbed habitats. The results of Canonical Analysis of Principal coordinates are in agreement with the classification. We postulate that the differences between both groups are caused by a differential degree of disturbance (probably caused by fires). Both dominant species show abundant juveniles, and the invasion by exotic woody species is limited. These forest relicts are among the last remnants of the massive expansions of forests in central Argentina. Besides their historical value, an urgent call is made for their preservation, sustainable use and defence from biological invasions. © 2009 Springer Science+Business Media B.V. Fil:Noetinger, S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2009 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09603115_v_n_p1_Lewis http://hdl.handle.net/20.500.12110/paper_09603115_v_n_p1_Lewis
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Celtis tala Conservation Espinal forest Exotic species invasion Fire Juveniles Trithrinax palms
spellingShingle	Celtis tala Conservation Espinal forest Exotic species invasion Fire Juveniles Trithrinax palms Noetinger, María Sol Woody vegetation structure and composition of the last relicts of Espinal vegetation in subtropical Argentina
topic_facet	Celtis tala Conservation Espinal forest Exotic species invasion Fire Juveniles Trithrinax palms
description	Until the beginning of the twentieth century there were extensive subtropical seasonal thorny forests surrounding the Pampas grasslands of Argentina, known as the 'Espinal'. In central Argentina there still exist relicts of the Espinal, belonging to the 'Entrerrianense District'. These forests were never described or analyzed in detail. In 2004 we studied 10 randomly located plots of 50 × 2 m. All individuals and stems of woody species were counted and their diameters at breast height (DBH) were measured; individuals with <1 cm DBH were considered juveniles. We recorded 2,300 woody individuals/ha corresponding to 12 species. The more constant species are the palm Trithrinax campestris (100%), Celtis tala (90%), Prosopis alba and Celtis pallida (both 50%). The plots are relatively homogeneous, but once classified with cluster analysis two groups are formed according to the relative abundance of C. tala and T. campestris; the latter species is more frequent in more open or fire-disturbed habitats. The results of Canonical Analysis of Principal coordinates are in agreement with the classification. We postulate that the differences between both groups are caused by a differential degree of disturbance (probably caused by fires). Both dominant species show abundant juveniles, and the invasion by exotic woody species is limited. These forest relicts are among the last remnants of the massive expansions of forests in central Argentina. Besides their historical value, an urgent call is made for their preservation, sustainable use and defence from biological invasions. © 2009 Springer Science+Business Media B.V.
author	Noetinger, María Sol
author_facet	Noetinger, María Sol
author_sort	Noetinger, María Sol
title	Woody vegetation structure and composition of the last relicts of Espinal vegetation in subtropical Argentina
title_short	Woody vegetation structure and composition of the last relicts of Espinal vegetation in subtropical Argentina
title_full	Woody vegetation structure and composition of the last relicts of Espinal vegetation in subtropical Argentina
title_fullStr	Woody vegetation structure and composition of the last relicts of Espinal vegetation in subtropical Argentina
title_full_unstemmed	Woody vegetation structure and composition of the last relicts of Espinal vegetation in subtropical Argentina
title_sort	woody vegetation structure and composition of the last relicts of espinal vegetation in subtropical argentina
publishDate	2009
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09603115_v_n_p1_Lewis http://hdl.handle.net/20.500.12110/paper_09603115_v_n_p1_Lewis
work_keys_str_mv	AT noetingermariasol woodyvegetationstructureandcompositionofthelastrelictsofespinalvegetationinsubtropicalargentina
_version_	1768542897847664640

Woody vegetation structure and composition of the last relicts of Espinal vegetation in subtropical Argentina

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