Early Acacia invasion in a sandy ecosystem enables shading mediated by soil, leaf nitrogen and facilitation

Detalhes bibliográficos
Autor(a) principal: Meira-Neto, João Augusto Alves
Data de Publicação: 2018
Outros Autores: Silva, Maria Carolina Nunes Alves da, Tolentino, Gláucia Soares, Gastauer, Markus, Buttschardt, Tillmann, Ulm, Florian, Máguas, Cristina
Tipo de documento: Artigo
Idioma: eng
Título da fonte: LOCUS Repositório Institucional da UFV
Texto Completo: https://doi.org/10.1007/s10530-017-1647-2
http://www.locus.ufv.br/handle/123456789/22736
Resumo: Australian species of the genus Acacia are amongst the most invasive trees. As nitrogen fixers, they are able to invade oligotrophic ecosystems and alter ecosystem functioning to their benefit. We aimed to answer three questions: How does early Acacia invasion influence nitrogen and light in a sandy savanna? How does early Acacia invasion impact biodiversity? Does early invasion alter ecosystem functioning towards the dominance of Acacia? We analyzed (using generalized linear mixed models and richness estimators) paired plots focused on plants of Acacia mangium (Fabaceae) and plants of Marcetia taxifolia (Melastomataceae) by taking hemispherical photos and sampling plants, leaves and soil for measurements of light, richness, leaf nitrogen, leaf δ15N, soil nitrogen and soil coarse sand. The results suggest that early Acacia invasion alters the control of soil and of leaf nitrogen and increases shading, enabling a much wider range of light variation. The δ15N results suggest that the nitrogen taken up by Acacia is transferred to neighboring plants and influences the light environment, suggesting facilitation. The enrichment of plant species observed during early Acacia invasion is consistent with the wider range of light variation, but the forecasted leaf nitrogen conditions during the established phase of Acacia invasion might cause loss of light-demanding species because of increased shading. If early Acacia invasion turns into an established phase with highly increased shading, Acacia seedlings might be favored and ecosystem functioning might change towards its dominance.
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spelling Meira-Neto, João Augusto AlvesSilva, Maria Carolina Nunes Alves daTolentino, Gláucia SoaresGastauer, MarkusButtschardt, TillmannUlm, FlorianMáguas, Cristina2018-12-10T20:24:06Z2018-12-10T20:24:06Z2018-0615731464https://doi.org/10.1007/s10530-017-1647-2http://www.locus.ufv.br/handle/123456789/22736Australian species of the genus Acacia are amongst the most invasive trees. As nitrogen fixers, they are able to invade oligotrophic ecosystems and alter ecosystem functioning to their benefit. We aimed to answer three questions: How does early Acacia invasion influence nitrogen and light in a sandy savanna? How does early Acacia invasion impact biodiversity? Does early invasion alter ecosystem functioning towards the dominance of Acacia? We analyzed (using generalized linear mixed models and richness estimators) paired plots focused on plants of Acacia mangium (Fabaceae) and plants of Marcetia taxifolia (Melastomataceae) by taking hemispherical photos and sampling plants, leaves and soil for measurements of light, richness, leaf nitrogen, leaf δ15N, soil nitrogen and soil coarse sand. The results suggest that early Acacia invasion alters the control of soil and of leaf nitrogen and increases shading, enabling a much wider range of light variation. The δ15N results suggest that the nitrogen taken up by Acacia is transferred to neighboring plants and influences the light environment, suggesting facilitation. The enrichment of plant species observed during early Acacia invasion is consistent with the wider range of light variation, but the forecasted leaf nitrogen conditions during the established phase of Acacia invasion might cause loss of light-demanding species because of increased shading. If early Acacia invasion turns into an established phase with highly increased shading, Acacia seedlings might be favored and ecosystem functioning might change towards its dominance.engBiological Invasionsv. 20, n. 6, p. 1567– 1575, jun. 2018Springer International Publishing AG, part of Springer Nature 2017info:eu-repo/semantics/openAccessBiological invasionAssembly rulesEcosystem functioningNiche theoryNitrogen fixingAcaciaPlant diversityδ15NEarly Acacia invasion in a sandy ecosystem enables shading mediated by soil, leaf nitrogen and facilitationinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfreponame:LOCUS Repositório Institucional da UFVinstname:Universidade Federal de Viçosa (UFV)instacron:UFVORIGINALartigo.pdfartigo.pdftexto completoapplication/pdf770490https://locus.ufv.br//bitstream/123456789/22736/1/artigo.pdfd0719534924f7ac3605f0874ca454658MD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81748https://locus.ufv.br//bitstream/123456789/22736/2/license.txt8a4605be74aa9ea9d79846c1fba20a33MD52123456789/227362018-12-10 17:26:59.15oai:locus.ufv.br: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Repositório InstitucionalPUBhttps://www.locus.ufv.br/oai/requestfabiojreis@ufv.bropendoar:21452018-12-10T20:26:59LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV)false
dc.title.en.fl_str_mv Early Acacia invasion in a sandy ecosystem enables shading mediated by soil, leaf nitrogen and facilitation
title Early Acacia invasion in a sandy ecosystem enables shading mediated by soil, leaf nitrogen and facilitation
spellingShingle Early Acacia invasion in a sandy ecosystem enables shading mediated by soil, leaf nitrogen and facilitation
Meira-Neto, João Augusto Alves
Biological invasion
Assembly rules
Ecosystem functioning
Niche theory
Nitrogen fixing
Acacia
Plant diversity
δ15N
title_short Early Acacia invasion in a sandy ecosystem enables shading mediated by soil, leaf nitrogen and facilitation
title_full Early Acacia invasion in a sandy ecosystem enables shading mediated by soil, leaf nitrogen and facilitation
title_fullStr Early Acacia invasion in a sandy ecosystem enables shading mediated by soil, leaf nitrogen and facilitation
title_full_unstemmed Early Acacia invasion in a sandy ecosystem enables shading mediated by soil, leaf nitrogen and facilitation
title_sort Early Acacia invasion in a sandy ecosystem enables shading mediated by soil, leaf nitrogen and facilitation
author Meira-Neto, João Augusto Alves
author_facet Meira-Neto, João Augusto Alves
Silva, Maria Carolina Nunes Alves da
Tolentino, Gláucia Soares
Gastauer, Markus
Buttschardt, Tillmann
Ulm, Florian
Máguas, Cristina
author_role author
author2 Silva, Maria Carolina Nunes Alves da
Tolentino, Gláucia Soares
Gastauer, Markus
Buttschardt, Tillmann
Ulm, Florian
Máguas, Cristina
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Meira-Neto, João Augusto Alves
Silva, Maria Carolina Nunes Alves da
Tolentino, Gláucia Soares
Gastauer, Markus
Buttschardt, Tillmann
Ulm, Florian
Máguas, Cristina
dc.subject.pt-BR.fl_str_mv Biological invasion
Assembly rules
Ecosystem functioning
Niche theory
Nitrogen fixing
Acacia
Plant diversity
δ15N
topic Biological invasion
Assembly rules
Ecosystem functioning
Niche theory
Nitrogen fixing
Acacia
Plant diversity
δ15N
description Australian species of the genus Acacia are amongst the most invasive trees. As nitrogen fixers, they are able to invade oligotrophic ecosystems and alter ecosystem functioning to their benefit. We aimed to answer three questions: How does early Acacia invasion influence nitrogen and light in a sandy savanna? How does early Acacia invasion impact biodiversity? Does early invasion alter ecosystem functioning towards the dominance of Acacia? We analyzed (using generalized linear mixed models and richness estimators) paired plots focused on plants of Acacia mangium (Fabaceae) and plants of Marcetia taxifolia (Melastomataceae) by taking hemispherical photos and sampling plants, leaves and soil for measurements of light, richness, leaf nitrogen, leaf δ15N, soil nitrogen and soil coarse sand. The results suggest that early Acacia invasion alters the control of soil and of leaf nitrogen and increases shading, enabling a much wider range of light variation. The δ15N results suggest that the nitrogen taken up by Acacia is transferred to neighboring plants and influences the light environment, suggesting facilitation. The enrichment of plant species observed during early Acacia invasion is consistent with the wider range of light variation, but the forecasted leaf nitrogen conditions during the established phase of Acacia invasion might cause loss of light-demanding species because of increased shading. If early Acacia invasion turns into an established phase with highly increased shading, Acacia seedlings might be favored and ecosystem functioning might change towards its dominance.
publishDate 2018
dc.date.accessioned.fl_str_mv 2018-12-10T20:24:06Z
dc.date.available.fl_str_mv 2018-12-10T20:24:06Z
dc.date.issued.fl_str_mv 2018-06
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://doi.org/10.1007/s10530-017-1647-2
http://www.locus.ufv.br/handle/123456789/22736
dc.identifier.issn.none.fl_str_mv 15731464
identifier_str_mv 15731464
url https://doi.org/10.1007/s10530-017-1647-2
http://www.locus.ufv.br/handle/123456789/22736
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartofseries.pt-BR.fl_str_mv v. 20, n. 6, p. 1567– 1575, jun. 2018
dc.rights.driver.fl_str_mv Springer International Publishing AG, part of Springer Nature 2017
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Springer International Publishing AG, part of Springer Nature 2017
eu_rights_str_mv openAccess
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