Floristic patterns of the neotropical forests, savannas and scrublands with Trithrinax campestris (Arecaceae) in central Argentina

Aims: Trithrinax campestris is one of the palm species with the southernmost distribution in the Neotropics. Despite that the vegetation types in which T. campestris occurs are nowadays heavily threatened by land use and land cover changes, their floristic composition and s...

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Main Authors: Sebastián R. Zeballos, Marcelo R. Cabido, Juan J. Cantero, Alicia T.R. Acosta, M. Virginia Palchetti, Juan Argarañaz, Paula I. Marcora, Paula A. Tecco, Ana Ferreras, Guillermo Funes, Victoria M. Vaieretti, Georgina Conti, Melisa A. Giorgis
Format: Article
Language:English
Published: Pensoft Publishers 2021-02-01
Series:Vegetation Classification and Survey (VCS)
Online Access:https://vcs.pensoft.net/article/59384/download/pdf/
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spelling doaj-354e503473c94a8898ff87cf56ae78bb2021-02-19T14:10:14ZengPensoft PublishersVegetation Classification and Survey (VCS)2683-06712021-02-01251810.3897/VCS/2021/5938459384Floristic patterns of the neotropical forests, savannas and scrublands with Trithrinax campestris (Arecaceae) in central ArgentinaSebastián R. Zeballos0Marcelo R. Cabido1Juan J. Cantero2Alicia T.R. Acosta3M. Virginia Palchetti4Juan Argarañaz5Paula I. Marcora6Paula A. Tecco7Ana Ferreras8Guillermo Funes9Victoria M. Vaieretti10Georgina Conti11Melisa A. Giorgis12Instituto Multidisciplinario de Biología Vegetal (CONICET-UNC)Instituto Multidisciplinario de Biología Vegetal (CONICET-UNC)Departamento de Biología Agrícola, Facultad de Agronomía y Veterinaria, UNRCUniversity of Rome 3, Department of SciencesInstituto Multidisciplinario de Biología Vegetal (CONICET-UNC)Instituto de Altos Estudios Espaciales Mario Gulich (CONAE-UNC)Instituto Multidisciplinario de Biología Vegetal (CONICET-UNC)Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Córdoba, Córdoba, ArgentinaInstituto Multidisciplinario de Biología VegetalInstituto Multidisciplinario de Biología Vegetal (CONICET-UNC)Instituto Multidisciplinario de Biología Vegetal (CONICET-UNC)Instituto Multidisciplinario de Biología Vegetal (CONICET-UNC)Universidad Nacional de Córdoba, Instituto Multidisciplinario de Biología Vegetal (IMBIV-CONICET) Aims: Trithrinax campestris is one of the palm species with the southernmost distribution in the Neotropics. Despite that the vegetation types in which T. campestris occurs are nowadays heavily threatened by land use and land cover changes, their floristic composition and structure are still to be documented. In order to characterize T. campestris habitats, the aim of this study was to describe the floristic composition of the vegetation types in which this palm occurs and their relationships with different environmental factors. Study area: The survey was conducted in central Argentina in an area comprising the southern extreme of the distribution of T. campestris in the following phytogeographic areas: Espinal, Lowland and Mountain Chaco. Methods: Following the Braun-Blanquet approach we collected 92 floristic relevés recording a total of 601 vascular plant species. Vegetation was classified through the ISOPAM hierarchical analysis. Bioclimatic and elevation data were related to the floristic data through the ISOMAP ordination. Remote-sensed images (Landsat TM, ETM+ and OLI) were used to characterize the fire frequency in the 92 stands. Results: Four vegetation types that differed in floristic composition and in diagnostic species were discriminated: 1.1 Celtis tala/Sida rhombifolia closed forest; 1.2 Aspidosperma quebracho-blanco/Prosopis kuntzei open forest; 2.1 Jarava pseudoichu/Vachellia caven open savanna; and 2.2 Acalypha variabilis/Nassella cordobensis scrubland. The ISOMAP ordination showed that differences in floristic composition were related to elevation, topography and climatic variables.Out of the 92 stands, only 21 showed the occurrence of fires during the period 1999–2018. Conclusions: Our results evidenced that vegetation types (forests, savannas and scrublands) comprising T. campestris developed in a wide range of environmental conditions. This is the first study that focuses on all vegetation types in which T. campestris occurs in central Argentina and it is relevant for conservation and sustainable management of the only native palm species in the flora of this part of the country. Taxonomic reference: Catálogo de las Plantas Vasculares del Cono Sur (Zuloaga et al. 2008) and its online update (http://www.darwin.edu.ar). Abbreviations: ISOMAP = isometric feature mapping; ISOPAM = isometric partitioning around medoids. https://vcs.pensoft.net/article/59384/download/pdf/
collection DOAJ
language English
format Article
sources DOAJ
author Sebastián R. Zeballos
Marcelo R. Cabido
Juan J. Cantero
Alicia T.R. Acosta
M. Virginia Palchetti
Juan Argarañaz
Paula I. Marcora
Paula A. Tecco
Ana Ferreras
Guillermo Funes
Victoria M. Vaieretti
Georgina Conti
Melisa A. Giorgis
spellingShingle Sebastián R. Zeballos
Marcelo R. Cabido
Juan J. Cantero
Alicia T.R. Acosta
M. Virginia Palchetti
Juan Argarañaz
Paula I. Marcora
Paula A. Tecco
Ana Ferreras
Guillermo Funes
Victoria M. Vaieretti
Georgina Conti
Melisa A. Giorgis
Floristic patterns of the neotropical forests, savannas and scrublands with Trithrinax campestris (Arecaceae) in central Argentina
Vegetation Classification and Survey (VCS)
author_facet Sebastián R. Zeballos
Marcelo R. Cabido
Juan J. Cantero
Alicia T.R. Acosta
M. Virginia Palchetti
Juan Argarañaz
Paula I. Marcora
Paula A. Tecco
Ana Ferreras
Guillermo Funes
Victoria M. Vaieretti
Georgina Conti
Melisa A. Giorgis
author_sort Sebastián R. Zeballos
title Floristic patterns of the neotropical forests, savannas and scrublands with Trithrinax campestris (Arecaceae) in central Argentina
title_short Floristic patterns of the neotropical forests, savannas and scrublands with Trithrinax campestris (Arecaceae) in central Argentina
title_full Floristic patterns of the neotropical forests, savannas and scrublands with Trithrinax campestris (Arecaceae) in central Argentina
title_fullStr Floristic patterns of the neotropical forests, savannas and scrublands with Trithrinax campestris (Arecaceae) in central Argentina
title_full_unstemmed Floristic patterns of the neotropical forests, savannas and scrublands with Trithrinax campestris (Arecaceae) in central Argentina
title_sort floristic patterns of the neotropical forests, savannas and scrublands with trithrinax campestris (arecaceae) in central argentina
publisher Pensoft Publishers
series Vegetation Classification and Survey (VCS)
issn 2683-0671
publishDate 2021-02-01
description Aims: Trithrinax campestris is one of the palm species with the southernmost distribution in the Neotropics. Despite that the vegetation types in which T. campestris occurs are nowadays heavily threatened by land use and land cover changes, their floristic composition and structure are still to be documented. In order to characterize T. campestris habitats, the aim of this study was to describe the floristic composition of the vegetation types in which this palm occurs and their relationships with different environmental factors. Study area: The survey was conducted in central Argentina in an area comprising the southern extreme of the distribution of T. campestris in the following phytogeographic areas: Espinal, Lowland and Mountain Chaco. Methods: Following the Braun-Blanquet approach we collected 92 floristic relevés recording a total of 601 vascular plant species. Vegetation was classified through the ISOPAM hierarchical analysis. Bioclimatic and elevation data were related to the floristic data through the ISOMAP ordination. Remote-sensed images (Landsat TM, ETM+ and OLI) were used to characterize the fire frequency in the 92 stands. Results: Four vegetation types that differed in floristic composition and in diagnostic species were discriminated: 1.1 Celtis tala/Sida rhombifolia closed forest; 1.2 Aspidosperma quebracho-blanco/Prosopis kuntzei open forest; 2.1 Jarava pseudoichu/Vachellia caven open savanna; and 2.2 Acalypha variabilis/Nassella cordobensis scrubland. The ISOMAP ordination showed that differences in floristic composition were related to elevation, topography and climatic variables.Out of the 92 stands, only 21 showed the occurrence of fires during the period 1999–2018. Conclusions: Our results evidenced that vegetation types (forests, savannas and scrublands) comprising T. campestris developed in a wide range of environmental conditions. This is the first study that focuses on all vegetation types in which T. campestris occurs in central Argentina and it is relevant for conservation and sustainable management of the only native palm species in the flora of this part of the country. Taxonomic reference: Catálogo de las Plantas Vasculares del Cono Sur (Zuloaga et al. 2008) and its online update (http://www.darwin.edu.ar). Abbreviations: ISOMAP = isometric feature mapping; ISOPAM = isometric partitioning around medoids.
url https://vcs.pensoft.net/article/59384/download/pdf/
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