Modern pollen and vegetation relationships in Northeastern Patagonia (Golfo San Matías, Río Negro)
- Autores
- Marcos, Maria Alejandra; Mancini, Maria Virginia
- Año de publicación
- 2012
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The understanding of modern pollen is a critical component of palaeocological research. The pollen assemblages reflect general patterns in vegetation distribution; however, pollen representation is biased by several factors such as differences in pollen production, dispersal and preservation. Therefore, this relationship cannot be applied directly in pollen records of the past. The aim is to study the relationship between modern pollen and vegetation and to apply this new information on the interpretation of Holocene pollen records. Classification of the vegetation into groups corresponding to different geomorphological units was carried out by cluster analysis. Discriminant Analysis was applied on the surface samples to test if different vegetation types could be distinguished by their pollen assemblages. To evaluate the relationship between pollen assemblages and vegetation types, association (A), under-representation (U) and over-representation (O) indexes were calculated for all present taxa in both plant and pollen dataset. The main vegetation types are reflected in pollen assemblages but with greater differences in the proportions of Poaceae, Hyalis argentea, Chenopodiaceae, Asteraceae subf. Asteroideae and Larrea divaricata. Association and representation indexes provided information related to the production rate and pollen dispersal. This study helps to interpret Holocene vegetation and environmental changes from fossil pollen records of the study area.
Fil: Marcos, Maria Alejandra. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Laboratorio de Paleoecología y Palinología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina
Fil: Mancini, Maria Virginia. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Laboratorio de Paleoecología y Palinología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina - Materia
-
ASSOCIATION/REPRESENTATION INDEXES
NORTHEASTERN PATAGONIA
PALYNOLOGICAL RICHNESS
POLLEN-VEGETATION RELATIONSHIP - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/199495
Ver los metadatos del registro completo
id |
CONICETDig_c087b5342bd625027f67c68bd2f4c50f |
---|---|
oai_identifier_str |
oai:ri.conicet.gov.ar:11336/199495 |
network_acronym_str |
CONICETDig |
repository_id_str |
3498 |
network_name_str |
CONICET Digital (CONICET) |
spelling |
Modern pollen and vegetation relationships in Northeastern Patagonia (Golfo San Matías, Río Negro)Marcos, Maria AlejandraMancini, Maria VirginiaASSOCIATION/REPRESENTATION INDEXESNORTHEASTERN PATAGONIAPALYNOLOGICAL RICHNESSPOLLEN-VEGETATION RELATIONSHIPhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The understanding of modern pollen is a critical component of palaeocological research. The pollen assemblages reflect general patterns in vegetation distribution; however, pollen representation is biased by several factors such as differences in pollen production, dispersal and preservation. Therefore, this relationship cannot be applied directly in pollen records of the past. The aim is to study the relationship between modern pollen and vegetation and to apply this new information on the interpretation of Holocene pollen records. Classification of the vegetation into groups corresponding to different geomorphological units was carried out by cluster analysis. Discriminant Analysis was applied on the surface samples to test if different vegetation types could be distinguished by their pollen assemblages. To evaluate the relationship between pollen assemblages and vegetation types, association (A), under-representation (U) and over-representation (O) indexes were calculated for all present taxa in both plant and pollen dataset. The main vegetation types are reflected in pollen assemblages but with greater differences in the proportions of Poaceae, Hyalis argentea, Chenopodiaceae, Asteraceae subf. Asteroideae and Larrea divaricata. Association and representation indexes provided information related to the production rate and pollen dispersal. This study helps to interpret Holocene vegetation and environmental changes from fossil pollen records of the study area.Fil: Marcos, Maria Alejandra. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Laboratorio de Paleoecología y Palinología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; ArgentinaFil: Mancini, Maria Virginia. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Laboratorio de Paleoecología y Palinología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; ArgentinaElsevier Science2012-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/199495Marcos, Maria Alejandra; Mancini, Maria Virginia; Modern pollen and vegetation relationships in Northeastern Patagonia (Golfo San Matías, Río Negro); Elsevier Science; Review of Palaeobotany and Palynology; 171; 2-2012; 19-260034-6667CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0034666711001849info:eu-repo/semantics/altIdentifier/doi/10.1016/j.revpalbo.2011.11.007info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:14:11Zoai:ri.conicet.gov.ar:11336/199495instacron: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:34982025-09-29 10:14:11.781CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Modern pollen and vegetation relationships in Northeastern Patagonia (Golfo San Matías, Río Negro) |
title |
Modern pollen and vegetation relationships in Northeastern Patagonia (Golfo San Matías, Río Negro) |
spellingShingle |
Modern pollen and vegetation relationships in Northeastern Patagonia (Golfo San Matías, Río Negro) Marcos, Maria Alejandra ASSOCIATION/REPRESENTATION INDEXES NORTHEASTERN PATAGONIA PALYNOLOGICAL RICHNESS POLLEN-VEGETATION RELATIONSHIP |
title_short |
Modern pollen and vegetation relationships in Northeastern Patagonia (Golfo San Matías, Río Negro) |
title_full |
Modern pollen and vegetation relationships in Northeastern Patagonia (Golfo San Matías, Río Negro) |
title_fullStr |
Modern pollen and vegetation relationships in Northeastern Patagonia (Golfo San Matías, Río Negro) |
title_full_unstemmed |
Modern pollen and vegetation relationships in Northeastern Patagonia (Golfo San Matías, Río Negro) |
title_sort |
Modern pollen and vegetation relationships in Northeastern Patagonia (Golfo San Matías, Río Negro) |
dc.creator.none.fl_str_mv |
Marcos, Maria Alejandra Mancini, Maria Virginia |
author |
Marcos, Maria Alejandra |
author_facet |
Marcos, Maria Alejandra Mancini, Maria Virginia |
author_role |
author |
author2 |
Mancini, Maria Virginia |
author2_role |
author |
dc.subject.none.fl_str_mv |
ASSOCIATION/REPRESENTATION INDEXES NORTHEASTERN PATAGONIA PALYNOLOGICAL RICHNESS POLLEN-VEGETATION RELATIONSHIP |
topic |
ASSOCIATION/REPRESENTATION INDEXES NORTHEASTERN PATAGONIA PALYNOLOGICAL RICHNESS POLLEN-VEGETATION RELATIONSHIP |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
The understanding of modern pollen is a critical component of palaeocological research. The pollen assemblages reflect general patterns in vegetation distribution; however, pollen representation is biased by several factors such as differences in pollen production, dispersal and preservation. Therefore, this relationship cannot be applied directly in pollen records of the past. The aim is to study the relationship between modern pollen and vegetation and to apply this new information on the interpretation of Holocene pollen records. Classification of the vegetation into groups corresponding to different geomorphological units was carried out by cluster analysis. Discriminant Analysis was applied on the surface samples to test if different vegetation types could be distinguished by their pollen assemblages. To evaluate the relationship between pollen assemblages and vegetation types, association (A), under-representation (U) and over-representation (O) indexes were calculated for all present taxa in both plant and pollen dataset. The main vegetation types are reflected in pollen assemblages but with greater differences in the proportions of Poaceae, Hyalis argentea, Chenopodiaceae, Asteraceae subf. Asteroideae and Larrea divaricata. Association and representation indexes provided information related to the production rate and pollen dispersal. This study helps to interpret Holocene vegetation and environmental changes from fossil pollen records of the study area. Fil: Marcos, Maria Alejandra. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Laboratorio de Paleoecología y Palinología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina Fil: Mancini, Maria Virginia. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Laboratorio de Paleoecología y Palinología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina |
description |
The understanding of modern pollen is a critical component of palaeocological research. The pollen assemblages reflect general patterns in vegetation distribution; however, pollen representation is biased by several factors such as differences in pollen production, dispersal and preservation. Therefore, this relationship cannot be applied directly in pollen records of the past. The aim is to study the relationship between modern pollen and vegetation and to apply this new information on the interpretation of Holocene pollen records. Classification of the vegetation into groups corresponding to different geomorphological units was carried out by cluster analysis. Discriminant Analysis was applied on the surface samples to test if different vegetation types could be distinguished by their pollen assemblages. To evaluate the relationship between pollen assemblages and vegetation types, association (A), under-representation (U) and over-representation (O) indexes were calculated for all present taxa in both plant and pollen dataset. The main vegetation types are reflected in pollen assemblages but with greater differences in the proportions of Poaceae, Hyalis argentea, Chenopodiaceae, Asteraceae subf. Asteroideae and Larrea divaricata. Association and representation indexes provided information related to the production rate and pollen dispersal. This study helps to interpret Holocene vegetation and environmental changes from fossil pollen records of the study area. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-02 |
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/11336/199495 Marcos, Maria Alejandra; Mancini, Maria Virginia; Modern pollen and vegetation relationships in Northeastern Patagonia (Golfo San Matías, Río Negro); Elsevier Science; Review of Palaeobotany and Palynology; 171; 2-2012; 19-26 0034-6667 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/199495 |
identifier_str_mv |
Marcos, Maria Alejandra; Mancini, Maria Virginia; Modern pollen and vegetation relationships in Northeastern Patagonia (Golfo San Matías, Río Negro); Elsevier Science; Review of Palaeobotany and Palynology; 171; 2-2012; 19-26 0034-6667 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0034666711001849 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.revpalbo.2011.11.007 |
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 application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier Science |
publisher.none.fl_str_mv |
Elsevier Science |
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_ |
1844614066358714368 |
score |
13.070432 |