Geographic distribution patterns of species of the subtribe Lychnophorinae (Asteraceae: Vernonieae)

Abstract With 119 species distributed in 19 genera, most species of the subtribe Lychnophorinae are endemic to the Espinhaço Range in central eastern Brazil. This region is characterized especially by the campos rupestres, a grassland mosaic associated with vegetation on rock outcrops, which display...

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Main Authors: Fábio Vitalino Santos Alves, Benoit Francis Patrice Loeuille
Format: Article
Language:English
Published: Instituto de Pesquisas Jardim Botânico do Rio de Janeiro 2021-09-01
Series:Rodriguésia
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2175-78602021000100262&tlng=en
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author Fábio Vitalino Santos Alves
Benoit Francis Patrice Loeuille
author_facet Fábio Vitalino Santos Alves
Benoit Francis Patrice Loeuille
author_sort Fábio Vitalino Santos Alves
collection DOAJ
description Abstract With 119 species distributed in 19 genera, most species of the subtribe Lychnophorinae are endemic to the Espinhaço Range in central eastern Brazil. This region is characterized especially by the campos rupestres, a grassland mosaic associated with vegetation on rock outcrops, which display a high level of endemism. The present work aims to identify distribution patterns, collection density, species richness and research bias in collections. Ten geographic distribution patterns were identified: Chapada Diamantina, Chapada dos Veadeiros and adjacent mountains, Pico da Aliança, Extension of the Espinhaço Range, Central-South Arc of Minas Gerais, Espinhaço Range and Brasília Arc, Campos Rupestres and Restinga, Chapada Diamantina and Caatinga, Northwest-Southeast Diagonal and East Triangle. Other Angiosperm families present similar distribution, mainly in the Espinhaço Meridional, where higher collecting efforts are present. Species richness is higher in sites with higher collection intensity, however, the northeast of Goiás shows the opposite pattern. Spearman correlation analysis shows a strong correlation between collection density and species richness, with an exponential asymptotic model that is quite significant for the total variation of species richness. The cluster analysis presented five clusters correlated with five distribution patterns in Lychnophorinae.
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spelling doaj.art-ee671c894aea45399c1aa00d8e65c1fd2022-12-22T04:16:02ZengInstituto de Pesquisas Jardim Botânico do Rio de JaneiroRodriguésia2175-78602021-09-017210.1590/2175-7860202172072Geographic distribution patterns of species of the subtribe Lychnophorinae (Asteraceae: Vernonieae)Fábio Vitalino Santos Alveshttps://orcid.org/0000-0002-2404-2526Benoit Francis Patrice Loeuillehttps://orcid.org/0000-0001-6898-7858Abstract With 119 species distributed in 19 genera, most species of the subtribe Lychnophorinae are endemic to the Espinhaço Range in central eastern Brazil. This region is characterized especially by the campos rupestres, a grassland mosaic associated with vegetation on rock outcrops, which display a high level of endemism. The present work aims to identify distribution patterns, collection density, species richness and research bias in collections. Ten geographic distribution patterns were identified: Chapada Diamantina, Chapada dos Veadeiros and adjacent mountains, Pico da Aliança, Extension of the Espinhaço Range, Central-South Arc of Minas Gerais, Espinhaço Range and Brasília Arc, Campos Rupestres and Restinga, Chapada Diamantina and Caatinga, Northwest-Southeast Diagonal and East Triangle. Other Angiosperm families present similar distribution, mainly in the Espinhaço Meridional, where higher collecting efforts are present. Species richness is higher in sites with higher collection intensity, however, the northeast of Goiás shows the opposite pattern. Spearman correlation analysis shows a strong correlation between collection density and species richness, with an exponential asymptotic model that is quite significant for the total variation of species richness. The cluster analysis presented five clusters correlated with five distribution patterns in Lychnophorinae.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2175-78602021000100262&tlng=enbiogeographycompositaeendemismEspinhaço Range
spellingShingle Fábio Vitalino Santos Alves
Benoit Francis Patrice Loeuille
Geographic distribution patterns of species of the subtribe Lychnophorinae (Asteraceae: Vernonieae)
Rodriguésia
biogeography
compositae
endemism
Espinhaço Range
title Geographic distribution patterns of species of the subtribe Lychnophorinae (Asteraceae: Vernonieae)
title_full Geographic distribution patterns of species of the subtribe Lychnophorinae (Asteraceae: Vernonieae)
title_fullStr Geographic distribution patterns of species of the subtribe Lychnophorinae (Asteraceae: Vernonieae)
title_full_unstemmed Geographic distribution patterns of species of the subtribe Lychnophorinae (Asteraceae: Vernonieae)
title_short Geographic distribution patterns of species of the subtribe Lychnophorinae (Asteraceae: Vernonieae)
title_sort geographic distribution patterns of species of the subtribe lychnophorinae asteraceae vernonieae
topic biogeography
compositae
endemism
Espinhaço Range
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2175-78602021000100262&tlng=en
work_keys_str_mv AT fabiovitalinosantosalves geographicdistributionpatternsofspeciesofthesubtribelychnophorinaeasteraceaevernonieae
AT benoitfrancispatriceloeuille geographicdistributionpatternsofspeciesofthesubtribelychnophorinaeasteraceaevernonieae