The relative effect of altitude and aspect on saxicolous lichen communities at mountain summits from central-west of Argentina

Detalhes bibliográficos
Autor(a) principal: Costas,Santiago Martín
Data de Publicação: 2021
Outros Autores: Canton,Norma, Rodríguez,Juan Manuel
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Rodriguésia (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2175-78602021000100254
Resumo: Abstract The altitudinal patterns of lichen communities in altitudinal gradients are very variable. The changes that occur along the mountains depend on climatic factors but also on microsite variables such as substrate type and aspect. The effect of altitude and aspect on richness, cover and composition of saxicolous lichens communities along an elevation gradient in extra Andean mountains from the central-west of Argentina was studied. Rock outcrops on the north and south aspect of three mountain summits distributed between 2,500 and 4,500 m.a.s.l. were sampled. Lichen species present in a 20 × 20 cm square were identified and the relative cover was measured using digital photography. Richness, cover and composition were analyzed through linear models and multivariate analysis. Fifty-eight saxicolous lichen species were identified between the three sites. Richness and cover were maximum at middle altitude. Also compositional differences among communities of each mountain summit were found. Finally, the effect of the aspect was significant at lower altitudes for cover and composition.
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spelling The relative effect of altitude and aspect on saxicolous lichen communities at mountain summits from central-west of Argentinadiversityelevation gradientlichenized fungimicrositespecies compositionAbstract The altitudinal patterns of lichen communities in altitudinal gradients are very variable. The changes that occur along the mountains depend on climatic factors but also on microsite variables such as substrate type and aspect. The effect of altitude and aspect on richness, cover and composition of saxicolous lichens communities along an elevation gradient in extra Andean mountains from the central-west of Argentina was studied. Rock outcrops on the north and south aspect of three mountain summits distributed between 2,500 and 4,500 m.a.s.l. were sampled. Lichen species present in a 20 × 20 cm square were identified and the relative cover was measured using digital photography. Richness, cover and composition were analyzed through linear models and multivariate analysis. Fifty-eight saxicolous lichen species were identified between the three sites. Richness and cover were maximum at middle altitude. Also compositional differences among communities of each mountain summit were found. Finally, the effect of the aspect was significant at lower altitudes for cover and composition.Instituto de Pesquisas Jardim Botânico do Rio de Janeiro2021-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2175-78602021000100254Rodriguésia v.72 2021reponame:Rodriguésia (Online)instname:Instituto de Pesquisas Jardim Botânico do Rio de Janeiro (JBRJ)instacron:JBRJ10.1590/2175-7860202172064info:eu-repo/semantics/openAccessCostas,Santiago MartínCanton,NormaRodríguez,Juan Manueleng2021-09-17T00:00:00Zoai:scielo:S2175-78602021000100254Revistahttp://rodriguesia.jbrj.gov.br/https://old.scielo.br/oai/scielo-oai.phprodriguesia@jbrj.gov.br2175-78600370-6583opendoar:2021-09-17T00:00Rodriguésia (Online) - Instituto de Pesquisas Jardim Botânico do Rio de Janeiro (JBRJ)false
dc.title.none.fl_str_mv The relative effect of altitude and aspect on saxicolous lichen communities at mountain summits from central-west of Argentina
title The relative effect of altitude and aspect on saxicolous lichen communities at mountain summits from central-west of Argentina
spellingShingle The relative effect of altitude and aspect on saxicolous lichen communities at mountain summits from central-west of Argentina
Costas,Santiago Martín
diversity
elevation gradient
lichenized fungi
microsite
species composition
title_short The relative effect of altitude and aspect on saxicolous lichen communities at mountain summits from central-west of Argentina
title_full The relative effect of altitude and aspect on saxicolous lichen communities at mountain summits from central-west of Argentina
title_fullStr The relative effect of altitude and aspect on saxicolous lichen communities at mountain summits from central-west of Argentina
title_full_unstemmed The relative effect of altitude and aspect on saxicolous lichen communities at mountain summits from central-west of Argentina
title_sort The relative effect of altitude and aspect on saxicolous lichen communities at mountain summits from central-west of Argentina
author Costas,Santiago Martín
author_facet Costas,Santiago Martín
Canton,Norma
Rodríguez,Juan Manuel
author_role author
author2 Canton,Norma
Rodríguez,Juan Manuel
author2_role author
author
dc.contributor.author.fl_str_mv Costas,Santiago Martín
Canton,Norma
Rodríguez,Juan Manuel
dc.subject.por.fl_str_mv diversity
elevation gradient
lichenized fungi
microsite
species composition
topic diversity
elevation gradient
lichenized fungi
microsite
species composition
description Abstract The altitudinal patterns of lichen communities in altitudinal gradients are very variable. The changes that occur along the mountains depend on climatic factors but also on microsite variables such as substrate type and aspect. The effect of altitude and aspect on richness, cover and composition of saxicolous lichens communities along an elevation gradient in extra Andean mountains from the central-west of Argentina was studied. Rock outcrops on the north and south aspect of three mountain summits distributed between 2,500 and 4,500 m.a.s.l. were sampled. Lichen species present in a 20 × 20 cm square were identified and the relative cover was measured using digital photography. Richness, cover and composition were analyzed through linear models and multivariate analysis. Fifty-eight saxicolous lichen species were identified between the three sites. Richness and cover were maximum at middle altitude. Also compositional differences among communities of each mountain summit were found. Finally, the effect of the aspect was significant at lower altitudes for cover and composition.
publishDate 2021
dc.date.none.fl_str_mv 2021-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2175-78602021000100254
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2175-78602021000100254
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/2175-7860202172064
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Instituto de Pesquisas Jardim Botânico do Rio de Janeiro
publisher.none.fl_str_mv Instituto de Pesquisas Jardim Botânico do Rio de Janeiro
dc.source.none.fl_str_mv Rodriguésia v.72 2021
reponame:Rodriguésia (Online)
instname:Instituto de Pesquisas Jardim Botânico do Rio de Janeiro (JBRJ)
instacron:JBRJ
instname_str Instituto de Pesquisas Jardim Botânico do Rio de Janeiro (JBRJ)
instacron_str JBRJ
institution JBRJ
reponame_str Rodriguésia (Online)
collection Rodriguésia (Online)
repository.name.fl_str_mv Rodriguésia (Online) - Instituto de Pesquisas Jardim Botânico do Rio de Janeiro (JBRJ)
repository.mail.fl_str_mv rodriguesia@jbrj.gov.br
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