Infaunalization and resource partitioning during the Mesozoic marine revolution

Autores
Buatois, Luis Alberto; Mángano, M. Gabriela; Desai, Bhawanisingh; Carmona, Noelia Beatriz; Burns, Fiona; Meek, Dean; Eglington, Bruce
Año de publicación
2022
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Infaunalization has been regarded as representing a response to increased predation pressures and is therefore central to the Mesozoic marine revolution, which gives pre-eminence to the role that enemy-directed evolution has played as a driving force of biotic change. Our ichnologic compilation from 39 Middle Triassic to Late Jurassic shallow-marine siliciclastic units allows us to evaluate the vertical partitioning of the infaunal ecospace through the application of the ichnoguild concept. This study shows that infaunal communities experienced a marked increase in ecospace utilization during the Early Jurassic, reaching a plateau during the rest of the Jurassic. This trend is expressed by an increase in the maximum number of ichnoguilds per community and per tier and in the number of ichnotaxa per ichnoguild. This pattern shows important partitioning of the infaunal ecospace into a series of tiers and that several organisms were able to exploit the same resources available at discrete sediment zones below the sea bottom. The increase in the maximum number of ichnoguilds per community and per tier suggests that niche partitioning was a key factor in a more efficient use of the infaunal ecospace and in driving alpha diversity. However, the increase in the number of ichnotaxa per ichnoguild indicates that ichnoguilds were packed with organisms exploiting similar resources, arguing against the role of competitive exclusion in structuring communities. Because several episodes of predation increase took place during the Mesozoic, an unequivocal link between predation pressures and infaunalization cannot be demonstrated empirically.
Fil: Buatois, Luis Alberto. University of Saskatchewan; Canadá. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Mángano, M. Gabriela. University of Saskatchewan; Canadá
Fil: Desai, Bhawanisingh. Pandit Deendayal Energy University; India
Fil: Carmona, Noelia Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación en Paleobiología y Geología; Argentina
Fil: Burns, Fiona. Firmground; Australia
Fil: Meek, Dean. University of Saskatchewan; Canadá
Fil: Eglington, Bruce. University of Saskatchewan; Canadá
Materia
Ichnology
Mesozoic Marine Revolution
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/202192

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spelling Infaunalization and resource partitioning during the Mesozoic marine revolutionBuatois, Luis AlbertoMángano, M. GabrielaDesai, BhawanisinghCarmona, Noelia BeatrizBurns, FionaMeek, DeanEglington, BruceIchnologyMesozoic Marine Revolutionhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Infaunalization has been regarded as representing a response to increased predation pressures and is therefore central to the Mesozoic marine revolution, which gives pre-eminence to the role that enemy-directed evolution has played as a driving force of biotic change. Our ichnologic compilation from 39 Middle Triassic to Late Jurassic shallow-marine siliciclastic units allows us to evaluate the vertical partitioning of the infaunal ecospace through the application of the ichnoguild concept. This study shows that infaunal communities experienced a marked increase in ecospace utilization during the Early Jurassic, reaching a plateau during the rest of the Jurassic. This trend is expressed by an increase in the maximum number of ichnoguilds per community and per tier and in the number of ichnotaxa per ichnoguild. This pattern shows important partitioning of the infaunal ecospace into a series of tiers and that several organisms were able to exploit the same resources available at discrete sediment zones below the sea bottom. The increase in the maximum number of ichnoguilds per community and per tier suggests that niche partitioning was a key factor in a more efficient use of the infaunal ecospace and in driving alpha diversity. However, the increase in the number of ichnotaxa per ichnoguild indicates that ichnoguilds were packed with organisms exploiting similar resources, arguing against the role of competitive exclusion in structuring communities. Because several episodes of predation increase took place during the Mesozoic, an unequivocal link between predation pressures and infaunalization cannot be demonstrated empirically.Fil: Buatois, Luis Alberto. University of Saskatchewan; Canadá. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Mángano, M. Gabriela. University of Saskatchewan; CanadáFil: Desai, Bhawanisingh. Pandit Deendayal Energy University; IndiaFil: Carmona, Noelia Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación en Paleobiología y Geología; ArgentinaFil: Burns, Fiona. Firmground; AustraliaFil: Meek, Dean. University of Saskatchewan; CanadáFil: Eglington, Bruce. University of Saskatchewan; CanadáGeological Society of America2022-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/202192Buatois, Luis Alberto; Mángano, M. Gabriela; Desai, Bhawanisingh; Carmona, Noelia Beatriz; Burns, Fiona; et al.; Infaunalization and resource partitioning during the Mesozoic marine revolution; Geological Society of America; Geology; 50; 7; 7-2022; 786-7900091-76131943-2682CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1130/G50088.1info:eu-repo/semantics/altIdentifier/url/https://pubs.geoscienceworld.org/gsa/geology/article/50/7/786/612997/Infaunalization-and-resource-partitioning-duringinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:40:55Zoai:ri.conicet.gov.ar:11336/202192instacron: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 10:40:56.034CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Infaunalization and resource partitioning during the Mesozoic marine revolution
title Infaunalization and resource partitioning during the Mesozoic marine revolution
spellingShingle Infaunalization and resource partitioning during the Mesozoic marine revolution
Buatois, Luis Alberto
Ichnology
Mesozoic Marine Revolution
title_short Infaunalization and resource partitioning during the Mesozoic marine revolution
title_full Infaunalization and resource partitioning during the Mesozoic marine revolution
title_fullStr Infaunalization and resource partitioning during the Mesozoic marine revolution
title_full_unstemmed Infaunalization and resource partitioning during the Mesozoic marine revolution
title_sort Infaunalization and resource partitioning during the Mesozoic marine revolution
dc.creator.none.fl_str_mv Buatois, Luis Alberto
Mángano, M. Gabriela
Desai, Bhawanisingh
Carmona, Noelia Beatriz
Burns, Fiona
Meek, Dean
Eglington, Bruce
author Buatois, Luis Alberto
author_facet Buatois, Luis Alberto
Mángano, M. Gabriela
Desai, Bhawanisingh
Carmona, Noelia Beatriz
Burns, Fiona
Meek, Dean
Eglington, Bruce
author_role author
author2 Mángano, M. Gabriela
Desai, Bhawanisingh
Carmona, Noelia Beatriz
Burns, Fiona
Meek, Dean
Eglington, Bruce
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Ichnology
Mesozoic Marine Revolution
topic Ichnology
Mesozoic Marine Revolution
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Infaunalization has been regarded as representing a response to increased predation pressures and is therefore central to the Mesozoic marine revolution, which gives pre-eminence to the role that enemy-directed evolution has played as a driving force of biotic change. Our ichnologic compilation from 39 Middle Triassic to Late Jurassic shallow-marine siliciclastic units allows us to evaluate the vertical partitioning of the infaunal ecospace through the application of the ichnoguild concept. This study shows that infaunal communities experienced a marked increase in ecospace utilization during the Early Jurassic, reaching a plateau during the rest of the Jurassic. This trend is expressed by an increase in the maximum number of ichnoguilds per community and per tier and in the number of ichnotaxa per ichnoguild. This pattern shows important partitioning of the infaunal ecospace into a series of tiers and that several organisms were able to exploit the same resources available at discrete sediment zones below the sea bottom. The increase in the maximum number of ichnoguilds per community and per tier suggests that niche partitioning was a key factor in a more efficient use of the infaunal ecospace and in driving alpha diversity. However, the increase in the number of ichnotaxa per ichnoguild indicates that ichnoguilds were packed with organisms exploiting similar resources, arguing against the role of competitive exclusion in structuring communities. Because several episodes of predation increase took place during the Mesozoic, an unequivocal link between predation pressures and infaunalization cannot be demonstrated empirically.
Fil: Buatois, Luis Alberto. University of Saskatchewan; Canadá. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Mángano, M. Gabriela. University of Saskatchewan; Canadá
Fil: Desai, Bhawanisingh. Pandit Deendayal Energy University; India
Fil: Carmona, Noelia Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación en Paleobiología y Geología; Argentina
Fil: Burns, Fiona. Firmground; Australia
Fil: Meek, Dean. University of Saskatchewan; Canadá
Fil: Eglington, Bruce. University of Saskatchewan; Canadá
description Infaunalization has been regarded as representing a response to increased predation pressures and is therefore central to the Mesozoic marine revolution, which gives pre-eminence to the role that enemy-directed evolution has played as a driving force of biotic change. Our ichnologic compilation from 39 Middle Triassic to Late Jurassic shallow-marine siliciclastic units allows us to evaluate the vertical partitioning of the infaunal ecospace through the application of the ichnoguild concept. This study shows that infaunal communities experienced a marked increase in ecospace utilization during the Early Jurassic, reaching a plateau during the rest of the Jurassic. This trend is expressed by an increase in the maximum number of ichnoguilds per community and per tier and in the number of ichnotaxa per ichnoguild. This pattern shows important partitioning of the infaunal ecospace into a series of tiers and that several organisms were able to exploit the same resources available at discrete sediment zones below the sea bottom. The increase in the maximum number of ichnoguilds per community and per tier suggests that niche partitioning was a key factor in a more efficient use of the infaunal ecospace and in driving alpha diversity. However, the increase in the number of ichnotaxa per ichnoguild indicates that ichnoguilds were packed with organisms exploiting similar resources, arguing against the role of competitive exclusion in structuring communities. Because several episodes of predation increase took place during the Mesozoic, an unequivocal link between predation pressures and infaunalization cannot be demonstrated empirically.
publishDate 2022
dc.date.none.fl_str_mv 2022-07
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/11336/202192
Buatois, Luis Alberto; Mángano, M. Gabriela; Desai, Bhawanisingh; Carmona, Noelia Beatriz; Burns, Fiona; et al.; Infaunalization and resource partitioning during the Mesozoic marine revolution; Geological Society of America; Geology; 50; 7; 7-2022; 786-790
0091-7613
1943-2682
CONICET Digital
CONICET
url http://hdl.handle.net/11336/202192
identifier_str_mv Buatois, Luis Alberto; Mángano, M. Gabriela; Desai, Bhawanisingh; Carmona, Noelia Beatriz; Burns, Fiona; et al.; Infaunalization and resource partitioning during the Mesozoic marine revolution; Geological Society of America; Geology; 50; 7; 7-2022; 786-790
0091-7613
1943-2682
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1130/G50088.1
info:eu-repo/semantics/altIdentifier/url/https://pubs.geoscienceworld.org/gsa/geology/article/50/7/786/612997/Infaunalization-and-resource-partitioning-during
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Geological Society of America
publisher.none.fl_str_mv Geological Society of America
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
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