Response of eolian ecosystems to minor climatic changes

Autores
Marcomini, S. C.; Maidana, Nora Irene
Año de publicación
2006
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The coastal dunefield of northern Buenos Aires province has been affected by two main factors: rainfall changes and urbanization. It was determine a trend to humid conditions since 1960. The changes detected on the dunefield described were: (1) increase on the vegetation cover and deflation processes over active landforms; (2) decrease in dune migration rates; (3) increase on the beach erosion; (4) degradation of the dune landforms. After one of the largest flood occurred in July 2001 in the eastern Buenos Aires, the intertidal lows of the active dunes began to be permanent flooded by an increase of the water table forming several shallow lakes. This fact induced changes on the dune ecosystem to adapt to new conditions. The lakes began to be colonized by algae and fungi probably transported by winds. Diatoms (Rhopalodia, Nitschia, Navicula, Cymbella and Neidium spp); chlorophytes (Chlamydomonas, Cosmarium, Bulbochaete, Oedogonium and Chaetosferidium spp); euglenophytes (Euglena spp). Cyanobacteria (Nostoc spp) and unidentified filamentous fungi grew between submerged macrophytes. In the bottom of the lakes appeared diatoms (Cymbella, Rhopalodia, Surirella, Amphora and Nitzschia spp.), dinofagellates and ostracods. On the lakes margins some species of vascular plants Spartina ciliata, Convolvulaceae (Dichondra sp, Panicum racemosum colonized the margins while the lakes got dry. An important bioturbation was also detected on the margins, caused by toads and worms that produced holes and tubes with complex trellis patterns, respectively.
Fil: Marcomini, S. C.. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Geología; Argentina
Fil: Maidana, Nora Irene. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
Dune Coast
Climatic Change
Ecosystem
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/16619
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/16619
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Response of eolian ecosystems to minor climatic changesMarcomini, S. C.Maidana, Nora IreneDune CoastClimatic ChangeEcosystemhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The coastal dunefield of northern Buenos Aires province has been affected by two main factors: rainfall changes and urbanization. It was determine a trend to humid conditions since 1960. The changes detected on the dunefield described were: (1) increase on the vegetation cover and deflation processes over active landforms; (2) decrease in dune migration rates; (3) increase on the beach erosion; (4) degradation of the dune landforms. After one of the largest flood occurred in July 2001 in the eastern Buenos Aires, the intertidal lows of the active dunes began to be permanent flooded by an increase of the water table forming several shallow lakes. This fact induced changes on the dune ecosystem to adapt to new conditions. The lakes began to be colonized by algae and fungi probably transported by winds. Diatoms (Rhopalodia, Nitschia, Navicula, Cymbella and Neidium spp); chlorophytes (Chlamydomonas, Cosmarium, Bulbochaete, Oedogonium and Chaetosferidium spp); euglenophytes (Euglena spp). Cyanobacteria (Nostoc spp) and unidentified filamentous fungi grew between submerged macrophytes. In the bottom of the lakes appeared diatoms (Cymbella, Rhopalodia, Surirella, Amphora and Nitzschia spp.), dinofagellates and ostracods. On the lakes margins some species of vascular plants Spartina ciliata, Convolvulaceae (Dichondra sp, Panicum racemosum colonized the margins while the lakes got dry. An important bioturbation was also detected on the margins, caused by toads and worms that produced holes and tubes with complex trellis patterns, respectively.Fil: Marcomini, S. C.. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Geología; ArgentinaFil: Maidana, Nora Irene. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaCoastal Education & Research Foundation2006-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/16619Marcomini, S. C.; Maidana, Nora Irene; Response of eolian ecosystems to minor climatic changes; Coastal Education & Research Foundation; Journal Of Coastal Research; 39; 12-2006; 204-2080749-02081551-5036enginfo:eu-repo/semantics/altIdentifier/url/http://www.cerf-jcr.org/images/stories/37_marcomini.pdfinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:04:38Zoai:ri.conicet.gov.ar:11336/16619instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 10:04:38.808CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Response of eolian ecosystems to minor climatic changes
title Response of eolian ecosystems to minor climatic changes
spellingShingle Response of eolian ecosystems to minor climatic changes
Marcomini, S. C.
Dune Coast
Climatic Change
Ecosystem
title_short Response of eolian ecosystems to minor climatic changes
title_full Response of eolian ecosystems to minor climatic changes
title_fullStr Response of eolian ecosystems to minor climatic changes
title_full_unstemmed Response of eolian ecosystems to minor climatic changes
title_sort Response of eolian ecosystems to minor climatic changes
dc.creator.none.fl_str_mv Marcomini, S. C.
Maidana, Nora Irene
author Marcomini, S. C.
author_facet Marcomini, S. C.
Maidana, Nora Irene
author_role author
author2 Maidana, Nora Irene
author2_role author
dc.subject.none.fl_str_mv Dune Coast
Climatic Change
Ecosystem
topic Dune Coast
Climatic Change
Ecosystem
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The coastal dunefield of northern Buenos Aires province has been affected by two main factors: rainfall changes and urbanization. It was determine a trend to humid conditions since 1960. The changes detected on the dunefield described were: (1) increase on the vegetation cover and deflation processes over active landforms; (2) decrease in dune migration rates; (3) increase on the beach erosion; (4) degradation of the dune landforms. After one of the largest flood occurred in July 2001 in the eastern Buenos Aires, the intertidal lows of the active dunes began to be permanent flooded by an increase of the water table forming several shallow lakes. This fact induced changes on the dune ecosystem to adapt to new conditions. The lakes began to be colonized by algae and fungi probably transported by winds. Diatoms (Rhopalodia, Nitschia, Navicula, Cymbella and Neidium spp); chlorophytes (Chlamydomonas, Cosmarium, Bulbochaete, Oedogonium and Chaetosferidium spp); euglenophytes (Euglena spp). Cyanobacteria (Nostoc spp) and unidentified filamentous fungi grew between submerged macrophytes. In the bottom of the lakes appeared diatoms (Cymbella, Rhopalodia, Surirella, Amphora and Nitzschia spp.), dinofagellates and ostracods. On the lakes margins some species of vascular plants Spartina ciliata, Convolvulaceae (Dichondra sp, Panicum racemosum colonized the margins while the lakes got dry. An important bioturbation was also detected on the margins, caused by toads and worms that produced holes and tubes with complex trellis patterns, respectively.
Fil: Marcomini, S. C.. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Geología; Argentina
Fil: Maidana, Nora Irene. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description The coastal dunefield of northern Buenos Aires province has been affected by two main factors: rainfall changes and urbanization. It was determine a trend to humid conditions since 1960. The changes detected on the dunefield described were: (1) increase on the vegetation cover and deflation processes over active landforms; (2) decrease in dune migration rates; (3) increase on the beach erosion; (4) degradation of the dune landforms. After one of the largest flood occurred in July 2001 in the eastern Buenos Aires, the intertidal lows of the active dunes began to be permanent flooded by an increase of the water table forming several shallow lakes. This fact induced changes on the dune ecosystem to adapt to new conditions. The lakes began to be colonized by algae and fungi probably transported by winds. Diatoms (Rhopalodia, Nitschia, Navicula, Cymbella and Neidium spp); chlorophytes (Chlamydomonas, Cosmarium, Bulbochaete, Oedogonium and Chaetosferidium spp); euglenophytes (Euglena spp). Cyanobacteria (Nostoc spp) and unidentified filamentous fungi grew between submerged macrophytes. In the bottom of the lakes appeared diatoms (Cymbella, Rhopalodia, Surirella, Amphora and Nitzschia spp.), dinofagellates and ostracods. On the lakes margins some species of vascular plants Spartina ciliata, Convolvulaceae (Dichondra sp, Panicum racemosum colonized the margins while the lakes got dry. An important bioturbation was also detected on the margins, caused by toads and worms that produced holes and tubes with complex trellis patterns, respectively.
publishDate 2006
dc.date.none.fl_str_mv 2006-12
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/16619
Marcomini, S. C.; Maidana, Nora Irene; Response of eolian ecosystems to minor climatic changes; Coastal Education & Research Foundation; Journal Of Coastal Research; 39; 12-2006; 204-208
0749-0208
1551-5036
url http://hdl.handle.net/11336/16619
identifier_str_mv Marcomini, S. C.; Maidana, Nora Irene; Response of eolian ecosystems to minor climatic changes; Coastal Education & Research Foundation; Journal Of Coastal Research; 39; 12-2006; 204-208
0749-0208
1551-5036
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.cerf-jcr.org/images/stories/37_marcomini.pdf
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Coastal Education & Research Foundation
publisher.none.fl_str_mv Coastal Education & Research Foundation
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1842269866990501888
score 13.13397

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