Craniological differentiation amongst Southeast Asian small cats

Abstract Nine small felid species, including the introduced domestic cat, inhabit Southeast Asia. We analysed their skull morphology, using 36 selected morphometric measurements of up to 465 specimens. Of the species examined, the fishing cat and the Asian golden cat were the largest, whilst the mai...

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Main Authors: Athirah N. Azli, Chrishen R. Gomez, Andrew C. Kitchener, Marcus A. H. Chua, Ibnu Maryanto, David W. Macdonald, Amirrudin Bin Ahmed, Nobuyuki Yamaguchi
Format: Article
Language:English
Published: Nature Portfolio 2025-08-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-025-15365-2
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author Athirah N. Azli
Chrishen R. Gomez
Andrew C. Kitchener
Marcus A. H. Chua
Ibnu Maryanto
David W. Macdonald
Amirrudin Bin Ahmed
Nobuyuki Yamaguchi
author_facet Athirah N. Azli
Chrishen R. Gomez
Andrew C. Kitchener
Marcus A. H. Chua
Ibnu Maryanto
David W. Macdonald
Amirrudin Bin Ahmed
Nobuyuki Yamaguchi
author_sort Athirah N. Azli
collection DOAJ
description Abstract Nine small felid species, including the introduced domestic cat, inhabit Southeast Asia. We analysed their skull morphology, using 36 selected morphometric measurements of up to 465 specimens. Of the species examined, the fishing cat and the Asian golden cat were the largest, whilst the mainland and Sunda leopard cats were the smallest. However, there was substantial overlap in size amongst these species. Principal Component Analysis and Quadratic Discriminant Analysis revealed that the skulls of fishing cats and flat-headed cats were clearly distinguishable from those of the other species. Additionally, the skulls of male Asian golden cats, female jungle cats, female Sunda leopard cats, and male marbled cats were well differentiated. In contrast, those of female Asian golden cats, male jungle cats, male domestic cats, and female marbled cats showed considerable morphological overlap with other morphospecies. When analysing only sympatric assemblages (i.e., on the continental mainland, Borneo, Sumatra, and Java), each morphospecies was generally well differentiated from the others although conspecific males and females were not clearly differentiated. Notable exceptions were female Asian golden cats and male jungle cats, female mainland leopard cats and female domestic cats, and female marbled cats and male domestic cats on the mainland, and female marbled cats and male domestic cats on Borneo and Sumatra. More detailed research is necessary to understand the impacts of introduced domestic cats on indigenous small wild felids in Southeast Asia through niche overlap and competition.
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spelling doaj-art-357cb46aee134723970818522beaa8d62025-08-20T04:03:01ZengNature PortfolioScientific Reports2045-23222025-08-011511910.1038/s41598-025-15365-2Craniological differentiation amongst Southeast Asian small catsAthirah N. Azli0Chrishen R. Gomez1Andrew C. Kitchener2Marcus A. H. Chua3Ibnu Maryanto4David W. Macdonald5Amirrudin Bin Ahmed6Nobuyuki Yamaguchi7Institute of Tropical Biodiversity and Sustainable Development, University of Malaysia TerengganuThe Wildlife Conservation Research Unit, The Recanati-Kaplan Centre, Department of Biology, University of OxfordDepartment of Natural Sciences, National Museums ScotlandLee Kong Chian Natural History Museum, National University of SingaporeMuseum Zoologicum Bogoriense, Research Centre in Biosystematics and Evolution-BRINThe Wildlife Conservation Research Unit, The Recanati-Kaplan Centre, Department of Biology, University of OxfordInstitute of Tropical Biodiversity and Sustainable Development, University of Malaysia TerengganuInstitute of Tropical Biodiversity and Sustainable Development, University of Malaysia TerengganuAbstract Nine small felid species, including the introduced domestic cat, inhabit Southeast Asia. We analysed their skull morphology, using 36 selected morphometric measurements of up to 465 specimens. Of the species examined, the fishing cat and the Asian golden cat were the largest, whilst the mainland and Sunda leopard cats were the smallest. However, there was substantial overlap in size amongst these species. Principal Component Analysis and Quadratic Discriminant Analysis revealed that the skulls of fishing cats and flat-headed cats were clearly distinguishable from those of the other species. Additionally, the skulls of male Asian golden cats, female jungle cats, female Sunda leopard cats, and male marbled cats were well differentiated. In contrast, those of female Asian golden cats, male jungle cats, male domestic cats, and female marbled cats showed considerable morphological overlap with other morphospecies. When analysing only sympatric assemblages (i.e., on the continental mainland, Borneo, Sumatra, and Java), each morphospecies was generally well differentiated from the others although conspecific males and females were not clearly differentiated. Notable exceptions were female Asian golden cats and male jungle cats, female mainland leopard cats and female domestic cats, and female marbled cats and male domestic cats on the mainland, and female marbled cats and male domestic cats on Borneo and Sumatra. More detailed research is necessary to understand the impacts of introduced domestic cats on indigenous small wild felids in Southeast Asia through niche overlap and competition.https://doi.org/10.1038/s41598-025-15365-2CompetitionConservationDomestic catMuseumNiche overlapSmall felids
spellingShingle Athirah N. Azli
Chrishen R. Gomez
Andrew C. Kitchener
Marcus A. H. Chua
Ibnu Maryanto
David W. Macdonald
Amirrudin Bin Ahmed
Nobuyuki Yamaguchi
Craniological differentiation amongst Southeast Asian small cats
Scientific Reports
Competition
Conservation
Domestic cat
Museum
Niche overlap
Small felids
title Craniological differentiation amongst Southeast Asian small cats
title_full Craniological differentiation amongst Southeast Asian small cats
title_fullStr Craniological differentiation amongst Southeast Asian small cats
title_full_unstemmed Craniological differentiation amongst Southeast Asian small cats
title_short Craniological differentiation amongst Southeast Asian small cats
title_sort craniological differentiation amongst southeast asian small cats
topic Competition
Conservation
Domestic cat
Museum
Niche overlap
Small felids
url https://doi.org/10.1038/s41598-025-15365-2
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