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A new genus and species of shrew-like mouse (Rodentia: Muridae) from a new center of endemism in eastern Mindanao, Philippines

The Philippine archipelago hosts an exceptional diversity of murid rodents that have diversified following several independent colonization events. Here, we report the discovery of a new species of rodent from Mt. Kampalili on eastern Mindanao Island. Molecular and craniodental analyses reveal this...

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Autores principales: Rowsey, Dakota M, Duya, Mariano Roy M, Ibañez, Jayson C, Jansa, Sharon A, Rickart, Eric A, Heaney, Lawrence R
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Oxford University Press 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9841421/
https://www.ncbi.nlm.nih.gov/pubmed/36660555
http://dx.doi.org/10.1093/jmammal/gyac057
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author Rowsey, Dakota M
Duya, Mariano Roy M
Ibañez, Jayson C
Jansa, Sharon A
Rickart, Eric A
Heaney, Lawrence R
author_facet Rowsey, Dakota M
Duya, Mariano Roy M
Ibañez, Jayson C
Jansa, Sharon A
Rickart, Eric A
Heaney, Lawrence R
author_sort Rowsey, Dakota M
collection PubMed
description The Philippine archipelago hosts an exceptional diversity of murid rodents that have diversified following several independent colonization events. Here, we report the discovery of a new species of rodent from Mt. Kampalili on eastern Mindanao Island. Molecular and craniodental analyses reveal this species as a member of a Philippine “New Endemic” clade consisting of Tarsomys, Limnomys, and Rattus everetti (tribe Rattini). This new species of “shrew-mouse” is easily distinguished from its relatives in both craniodental and external characteristics including a long, narrow snout; small eyes and ears; short, dark, dense fur dorsally and ventrally; stout body with a tapering, visibly haired tail shorter than head and body length; stout forepaws; bulbous and nearly smooth braincase; narrow, tapering rostrum; short incisive foramina; slender mandible; and narrow, slightly opisthodont incisors. This new genus and species of murid rodent illustrates that murids of the tribe Rattini have exhibited greater species and morphological diversification within the Philippines than previously known and provides evidence that Mt. Kampalili represents a previously unrecognized center of mammalian endemism on Mindanao Island that is deserving of conservation action.
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spelling pubmed-98414212023-01-18 A new genus and species of shrew-like mouse (Rodentia: Muridae) from a new center of endemism in eastern Mindanao, Philippines Rowsey, Dakota M Duya, Mariano Roy M Ibañez, Jayson C Jansa, Sharon A Rickart, Eric A Heaney, Lawrence R J Mammal Feature Articles The Philippine archipelago hosts an exceptional diversity of murid rodents that have diversified following several independent colonization events. Here, we report the discovery of a new species of rodent from Mt. Kampalili on eastern Mindanao Island. Molecular and craniodental analyses reveal this species as a member of a Philippine “New Endemic” clade consisting of Tarsomys, Limnomys, and Rattus everetti (tribe Rattini). This new species of “shrew-mouse” is easily distinguished from its relatives in both craniodental and external characteristics including a long, narrow snout; small eyes and ears; short, dark, dense fur dorsally and ventrally; stout body with a tapering, visibly haired tail shorter than head and body length; stout forepaws; bulbous and nearly smooth braincase; narrow, tapering rostrum; short incisive foramina; slender mandible; and narrow, slightly opisthodont incisors. This new genus and species of murid rodent illustrates that murids of the tribe Rattini have exhibited greater species and morphological diversification within the Philippines than previously known and provides evidence that Mt. Kampalili represents a previously unrecognized center of mammalian endemism on Mindanao Island that is deserving of conservation action. Oxford University Press 2022-08-18 /pmc/articles/PMC9841421/ /pubmed/36660555 http://dx.doi.org/10.1093/jmammal/gyac057 Text en © The Author(s) 2022. Published by Oxford University Press on behalf of the American Society of Mammalogists. https://creativecommons.org/licenses/by-nc/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial License (https://creativecommons.org/licenses/by-nc/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact journals.permissions@oup.com
spellingShingle Feature Articles
Rowsey, Dakota M
Duya, Mariano Roy M
Ibañez, Jayson C
Jansa, Sharon A
Rickart, Eric A
Heaney, Lawrence R
A new genus and species of shrew-like mouse (Rodentia: Muridae) from a new center of endemism in eastern Mindanao, Philippines
title A new genus and species of shrew-like mouse (Rodentia: Muridae) from a new center of endemism in eastern Mindanao, Philippines
title_full A new genus and species of shrew-like mouse (Rodentia: Muridae) from a new center of endemism in eastern Mindanao, Philippines
title_fullStr A new genus and species of shrew-like mouse (Rodentia: Muridae) from a new center of endemism in eastern Mindanao, Philippines
title_full_unstemmed A new genus and species of shrew-like mouse (Rodentia: Muridae) from a new center of endemism in eastern Mindanao, Philippines
title_short A new genus and species of shrew-like mouse (Rodentia: Muridae) from a new center of endemism in eastern Mindanao, Philippines
title_sort new genus and species of shrew-like mouse (rodentia: muridae) from a new center of endemism in eastern mindanao, philippines
topic Feature Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9841421/
https://www.ncbi.nlm.nih.gov/pubmed/36660555
http://dx.doi.org/10.1093/jmammal/gyac057
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