Unlocking Andean sigmodontine diversity: five new species of Chilomys (Rodentia: Cricetidae) from the montane forests of Ecuador

Autores
Brito, Jorge; Tinoco, Nicolás; Pinto, C. Miguel; García, Rubí; Koch, Claudia; Fernandez, Vincent; Burneo, Santiago; Pardiñas, Ulises Francisco J.
Año de publicación
2022
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The Andean cloud forests of Ecuador are home to several endemic mammals. Members of the Thomasomyini rodents are well represented in the Andes, with Thomasomys being the largest genus (47 species) of the subfamily Sigmodontinae. Within this tribe, however, there are genera that have escaped a taxonomic revision, and Chilomys Thomas, 1897, constitutes a paradigmatic example of these “forgotten” Andean cricetids. Described more than a century ago, current knowledge of this externally unmistakable montane rodent is very limited, and doubts persist as to whether or not it is monotypic. After several years of field efforts in Ecuador, a considerable quantity of specimens of Chilomys were collected from various localities representing both Andean chains. Based on an extensive genetic survey of the obtained material, we can demonstrate that what is currently treated as C. instans in Ecuador is a complex comprising at least five new species which are described in this paper. In addition, based on these noteworthy new evidence, we amend the generic diagnosis in detail, adding several key craniodental traits such as incisor procumbency and microdonty. These results indicate that Chilomys probably has a hidden additional diversity in large parts of the Colombian and Peruvian territories, inviting a necessary revision of the entire genus.
Fil: Brito, Jorge. Instituto Nacional de Biodiversidad; Ecuador
Fil: Tinoco, Nicolás. Pontificia Universidad Católica del Ecuador; Ecuador
Fil: Pinto, C. Miguel. Observatorio de Biodiversidad Ambiente y Salud; Ecuador
Fil: García, Rubí. Instituto Nacional de Biodiversidad; Ecuador
Fil: Koch, Claudia. Leibniz Institute for the Analysis of Biodiversity Chang; Alemania
Fil: Fernandez, Vincent. Natural History Museum; Reino Unido
Fil: Burneo, Santiago. Pontificia Universidad Católica del Ecuador; Ecuador
Fil: Pardiñas, Ulises Francisco J.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto de Diversidad y Evolución Austral; Argentina
Materia
ANDES
CT
MICRODONTY
PROODONTY
SIGMODONTINAE
THOMASOMYINI
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:11336/216375
Acceder
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network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling Unlocking Andean sigmodontine diversity: five new species of Chilomys (Rodentia: Cricetidae) from the montane forests of EcuadorBrito, JorgeTinoco, NicolásPinto, C. MiguelGarcía, RubíKoch, ClaudiaFernandez, VincentBurneo, SantiagoPardiñas, Ulises Francisco J.ANDESCTMICRODONTYPROODONTYSIGMODONTINAETHOMASOMYINIhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The Andean cloud forests of Ecuador are home to several endemic mammals. Members of the Thomasomyini rodents are well represented in the Andes, with Thomasomys being the largest genus (47 species) of the subfamily Sigmodontinae. Within this tribe, however, there are genera that have escaped a taxonomic revision, and Chilomys Thomas, 1897, constitutes a paradigmatic example of these “forgotten” Andean cricetids. Described more than a century ago, current knowledge of this externally unmistakable montane rodent is very limited, and doubts persist as to whether or not it is monotypic. After several years of field efforts in Ecuador, a considerable quantity of specimens of Chilomys were collected from various localities representing both Andean chains. Based on an extensive genetic survey of the obtained material, we can demonstrate that what is currently treated as C. instans in Ecuador is a complex comprising at least five new species which are described in this paper. In addition, based on these noteworthy new evidence, we amend the generic diagnosis in detail, adding several key craniodental traits such as incisor procumbency and microdonty. These results indicate that Chilomys probably has a hidden additional diversity in large parts of the Colombian and Peruvian territories, inviting a necessary revision of the entire genus.Fil: Brito, Jorge. Instituto Nacional de Biodiversidad; EcuadorFil: Tinoco, Nicolás. Pontificia Universidad Católica del Ecuador; EcuadorFil: Pinto, C. Miguel. Observatorio de Biodiversidad Ambiente y Salud; EcuadorFil: García, Rubí. Instituto Nacional de Biodiversidad; EcuadorFil: Koch, Claudia. Leibniz Institute for the Analysis of Biodiversity Chang; AlemaniaFil: Fernandez, Vincent. Natural History Museum; Reino UnidoFil: Burneo, Santiago. Pontificia Universidad Católica del Ecuador; EcuadorFil: Pardiñas, Ulises Francisco J.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto de Diversidad y Evolución Austral; ArgentinaPeerJ Inc.2022-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/216375Brito, Jorge; Tinoco, Nicolás; Pinto, C. Miguel; García, Rubí; Koch, Claudia; et al.; Unlocking Andean sigmodontine diversity: five new species of Chilomys (Rodentia: Cricetidae) from the montane forests of Ecuador; PeerJ Inc.; PeerJ; 10; 4-2022; 1-602167-8359CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.7717/peerj.13211info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:16:22Zoai:ri.conicet.gov.ar:11336/216375instacron: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 10:16:22.304CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Unlocking Andean sigmodontine diversity: five new species of Chilomys (Rodentia: Cricetidae) from the montane forests of Ecuador
title Unlocking Andean sigmodontine diversity: five new species of Chilomys (Rodentia: Cricetidae) from the montane forests of Ecuador
spellingShingle Unlocking Andean sigmodontine diversity: five new species of Chilomys (Rodentia: Cricetidae) from the montane forests of Ecuador
Brito, Jorge
ANDES
CT
MICRODONTY
PROODONTY
SIGMODONTINAE
THOMASOMYINI
title_short Unlocking Andean sigmodontine diversity: five new species of Chilomys (Rodentia: Cricetidae) from the montane forests of Ecuador
title_full Unlocking Andean sigmodontine diversity: five new species of Chilomys (Rodentia: Cricetidae) from the montane forests of Ecuador
title_fullStr Unlocking Andean sigmodontine diversity: five new species of Chilomys (Rodentia: Cricetidae) from the montane forests of Ecuador
title_full_unstemmed Unlocking Andean sigmodontine diversity: five new species of Chilomys (Rodentia: Cricetidae) from the montane forests of Ecuador
title_sort Unlocking Andean sigmodontine diversity: five new species of Chilomys (Rodentia: Cricetidae) from the montane forests of Ecuador
dc.creator.none.fl_str_mv Brito, Jorge
Tinoco, Nicolás
Pinto, C. Miguel
García, Rubí
Koch, Claudia
Fernandez, Vincent
Burneo, Santiago
Pardiñas, Ulises Francisco J.
author Brito, Jorge
author_facet Brito, Jorge
Tinoco, Nicolás
Pinto, C. Miguel
García, Rubí
Koch, Claudia
Fernandez, Vincent
Burneo, Santiago
Pardiñas, Ulises Francisco J.
author_role author
author2 Tinoco, Nicolás
Pinto, C. Miguel
García, Rubí
Koch, Claudia
Fernandez, Vincent
Burneo, Santiago
Pardiñas, Ulises Francisco J.
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv ANDES
CT
MICRODONTY
PROODONTY
SIGMODONTINAE
THOMASOMYINI
topic ANDES
CT
MICRODONTY
PROODONTY
SIGMODONTINAE
THOMASOMYINI
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 Andean cloud forests of Ecuador are home to several endemic mammals. Members of the Thomasomyini rodents are well represented in the Andes, with Thomasomys being the largest genus (47 species) of the subfamily Sigmodontinae. Within this tribe, however, there are genera that have escaped a taxonomic revision, and Chilomys Thomas, 1897, constitutes a paradigmatic example of these “forgotten” Andean cricetids. Described more than a century ago, current knowledge of this externally unmistakable montane rodent is very limited, and doubts persist as to whether or not it is monotypic. After several years of field efforts in Ecuador, a considerable quantity of specimens of Chilomys were collected from various localities representing both Andean chains. Based on an extensive genetic survey of the obtained material, we can demonstrate that what is currently treated as C. instans in Ecuador is a complex comprising at least five new species which are described in this paper. In addition, based on these noteworthy new evidence, we amend the generic diagnosis in detail, adding several key craniodental traits such as incisor procumbency and microdonty. These results indicate that Chilomys probably has a hidden additional diversity in large parts of the Colombian and Peruvian territories, inviting a necessary revision of the entire genus.
Fil: Brito, Jorge. Instituto Nacional de Biodiversidad; Ecuador
Fil: Tinoco, Nicolás. Pontificia Universidad Católica del Ecuador; Ecuador
Fil: Pinto, C. Miguel. Observatorio de Biodiversidad Ambiente y Salud; Ecuador
Fil: García, Rubí. Instituto Nacional de Biodiversidad; Ecuador
Fil: Koch, Claudia. Leibniz Institute for the Analysis of Biodiversity Chang; Alemania
Fil: Fernandez, Vincent. Natural History Museum; Reino Unido
Fil: Burneo, Santiago. Pontificia Universidad Católica del Ecuador; Ecuador
Fil: Pardiñas, Ulises Francisco J.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto de Diversidad y Evolución Austral; Argentina
description The Andean cloud forests of Ecuador are home to several endemic mammals. Members of the Thomasomyini rodents are well represented in the Andes, with Thomasomys being the largest genus (47 species) of the subfamily Sigmodontinae. Within this tribe, however, there are genera that have escaped a taxonomic revision, and Chilomys Thomas, 1897, constitutes a paradigmatic example of these “forgotten” Andean cricetids. Described more than a century ago, current knowledge of this externally unmistakable montane rodent is very limited, and doubts persist as to whether or not it is monotypic. After several years of field efforts in Ecuador, a considerable quantity of specimens of Chilomys were collected from various localities representing both Andean chains. Based on an extensive genetic survey of the obtained material, we can demonstrate that what is currently treated as C. instans in Ecuador is a complex comprising at least five new species which are described in this paper. In addition, based on these noteworthy new evidence, we amend the generic diagnosis in detail, adding several key craniodental traits such as incisor procumbency and microdonty. These results indicate that Chilomys probably has a hidden additional diversity in large parts of the Colombian and Peruvian territories, inviting a necessary revision of the entire genus.
publishDate 2022
dc.date.none.fl_str_mv 2022-04
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/11336/216375
Brito, Jorge; Tinoco, Nicolás; Pinto, C. Miguel; García, Rubí; Koch, Claudia; et al.; Unlocking Andean sigmodontine diversity: five new species of Chilomys (Rodentia: Cricetidae) from the montane forests of Ecuador; PeerJ Inc.; PeerJ; 10; 4-2022; 1-60
2167-8359
CONICET Digital
CONICET
url http://hdl.handle.net/11336/216375
identifier_str_mv Brito, Jorge; Tinoco, Nicolás; Pinto, C. Miguel; García, Rubí; Koch, Claudia; et al.; Unlocking Andean sigmodontine diversity: five new species of Chilomys (Rodentia: Cricetidae) from the montane forests of Ecuador; PeerJ Inc.; PeerJ; 10; 4-2022; 1-60
2167-8359
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.7717/peerj.13211
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 PeerJ Inc.
publisher.none.fl_str_mv PeerJ Inc.
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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score 13.070432

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