The Structure of the Mammalian Predator Guild in the Santa Cruz Formation (Late Early Miocene)

The Santa Cruz Formation (late early Miocene, Santacrucian age) registers 11 species of mammalian predators (Metatheria, Sparassodonta). Together with large carnivorous flightless birds, they comprised the terrestrial predator guild. The Santacrucian sparassodonts were diverse in body size, had diff...

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Detalles Bibliográficos
Autores: Ercoli, Marcos Darío, Prevosti, Francisco Juan, Forasiepi, Analia Marta
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2014
País:Argentina
Institución:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/19136
Acceso en línea:http://hdl.handle.net/11336/19136
Access Level:acceso abierto
Palabra clave:Mammalia
Paleosynecology
Predator
Prey
https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
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spelling The Structure of the Mammalian Predator Guild in the Santa Cruz Formation (Late Early Miocene)Ercoli, Marcos DaríoPrevosti, Francisco JuanForasiepi, Analia MartaMammaliaPaleosynecologyPredatorPreyhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The Santa Cruz Formation (late early Miocene, Santacrucian age) registers 11 species of mammalian predators (Metatheria, Sparassodonta). Together with large carnivorous flightless birds, they comprised the terrestrial predator guild. The Santacrucian sparassodonts were diverse in body size, had different locomotory habits, and were primarily hypercarnivores. The objective of this work is to analyze the guild structure of the sparassodonts of the Santa Cruz Formation, using the variables of body mass, diet, and locomotion as proxies. Furthermore, we analyze the interaction with other predators and potential prey. The univariated test V of Poole and Rathcke and the multivariated test of Clark-Evans were used to construct the models. In the multivariate test, we made a Principal Component Analysis to resume and standardize the variables. With body mass and locomotion we obtained an evenly spaced pattern of segregation for the sparassodont species, being non-significant and significant, respectively. The pattern was aggregated and significant only with diet. The analysis of all variables together resulted in an evenly spaced and significant pattern, which is consistent with character displacements (segregation of species throughout the morphospace) that would help to diminish interspecific competition during the Santacrucian age and would allow selection of prey species of different sizes and substrate specializations. When the body size pattern of predator birds and sparassodonts were plotted together, the pattern is evenly spaced and nonsignificant. Other factors, including locomotion, would differentiate these species and their ecological niches.Fil: Ercoli, Marcos Darío. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; ArgentinaFil: Prevosti, Francisco Juan. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; ArgentinaFil: Forasiepi, Analia Marta. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; ArgentinaSpringer2014-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/19136Ercoli, Marcos Darío; Prevosti, Francisco Juan; Forasiepi, Analia Marta; The Structure of the Mammalian Predator Guild in the Santa Cruz Formation (Late Early Miocene); Springer; Journal of Mammalian Evolution; 21; 4; 12-2014; 369-3811064-75541573-7055CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1007/s10914-013-9243-4info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs10914-013-9243-4info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T13:44:56Zoai:ri.conicet.gov.ar:11336/19136instacron: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:34982024-05-08 13:44:56.304CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv The Structure of the Mammalian Predator Guild in the Santa Cruz Formation (Late Early Miocene)
title The Structure of the Mammalian Predator Guild in the Santa Cruz Formation (Late Early Miocene)
spellingShingle The Structure of the Mammalian Predator Guild in the Santa Cruz Formation (Late Early Miocene)
Ercoli, Marcos Darío
Mammalia
Paleosynecology
Predator
Prey
https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
title_short The Structure of the Mammalian Predator Guild in the Santa Cruz Formation (Late Early Miocene)
title_full The Structure of the Mammalian Predator Guild in the Santa Cruz Formation (Late Early Miocene)
title_fullStr The Structure of the Mammalian Predator Guild in the Santa Cruz Formation (Late Early Miocene)
title_full_unstemmed The Structure of the Mammalian Predator Guild in the Santa Cruz Formation (Late Early Miocene)
title_sort The Structure of the Mammalian Predator Guild in the Santa Cruz Formation (Late Early Miocene)
dc.creator.none.fl_str_mv Ercoli, Marcos Darío
Prevosti, Francisco Juan
Forasiepi, Analia Marta
author Ercoli, Marcos Darío
author_facet Ercoli, Marcos Darío
Prevosti, Francisco Juan
Forasiepi, Analia Marta
author_role author
author2 Prevosti, Francisco Juan
Forasiepi, Analia Marta
author2_role author
author
dc.subject.none.fl_str_mv Mammalia
Paleosynecology
Predator
Prey
https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
topic Mammalia
Paleosynecology
Predator
Prey
https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
description The Santa Cruz Formation (late early Miocene, Santacrucian age) registers 11 species of mammalian predators (Metatheria, Sparassodonta). Together with large carnivorous flightless birds, they comprised the terrestrial predator guild. The Santacrucian sparassodonts were diverse in body size, had different locomotory habits, and were primarily hypercarnivores. The objective of this work is to analyze the guild structure of the sparassodonts of the Santa Cruz Formation, using the variables of body mass, diet, and locomotion as proxies. Furthermore, we analyze the interaction with other predators and potential prey. The univariated test V of Poole and Rathcke and the multivariated test of Clark-Evans were used to construct the models. In the multivariate test, we made a Principal Component Analysis to resume and standardize the variables. With body mass and locomotion we obtained an evenly spaced pattern of segregation for the sparassodont species, being non-significant and significant, respectively. The pattern was aggregated and significant only with diet. The analysis of all variables together resulted in an evenly spaced and significant pattern, which is consistent with character displacements (segregation of species throughout the morphospace) that would help to diminish interspecific competition during the Santacrucian age and would allow selection of prey species of different sizes and substrate specializations. When the body size pattern of predator birds and sparassodonts were plotted together, the pattern is evenly spaced and nonsignificant. Other factors, including locomotion, would differentiate these species and their ecological niches.
publishDate 2014
dc.date.none.fl_str_mv 2014-12
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/11336/19136
Ercoli, Marcos Darío; Prevosti, Francisco Juan; Forasiepi, Analia Marta; The Structure of the Mammalian Predator Guild in the Santa Cruz Formation (Late Early Miocene); Springer; Journal of Mammalian Evolution; 21; 4; 12-2014; 369-381
1064-7554
1573-7055
CONICET Digital
CONICET
url http://hdl.handle.net/11336/19136
identifier_str_mv Ercoli, Marcos Darío; Prevosti, Francisco Juan; Forasiepi, Analia Marta; The Structure of the Mammalian Predator Guild in the Santa Cruz Formation (Late Early Miocene); Springer; Journal of Mammalian Evolution; 21; 4; 12-2014; 369-381
1064-7554
1573-7055
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1007/s10914-013-9243-4
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs10914-013-9243-4
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
application/pdf
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
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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score 15,811543

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