Ghost rodents: Albinism in Australian rodent species
Abstract While almost half of all mammal species are rodents, records of albinism in free‐ranging rodents are very rare. Australia has a large and diverse assemblage of native rodent species, but there are no records of free‐ranging albino rodents in the published literature. In this study, we aim t...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2023-03-01
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| Series: | Ecology and Evolution |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/ece3.9942 |
| _version_ | 1797857494374023168 |
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| author | Darcy Watchorn Chris Dickman Judy Dunlop Emmalie Sanders Molly Watchorn Phoebe Burns |
| author_facet | Darcy Watchorn Chris Dickman Judy Dunlop Emmalie Sanders Molly Watchorn Phoebe Burns |
| author_sort | Darcy Watchorn |
| collection | DOAJ |
| description | Abstract While almost half of all mammal species are rodents, records of albinism in free‐ranging rodents are very rare. Australia has a large and diverse assemblage of native rodent species, but there are no records of free‐ranging albino rodents in the published literature. In this study, we aim to improve our understanding of the occurrence of albinism in Australian rodent species by collating contemporary and historic records of this condition and providing an estimate of its frequency. We found 23 records of albinism (i.e., a complete loss of pigmentation), representing eight species, in free‐ranging rodents native to Australia, with the frequency of albinism being generally <0.1%. Our findings bring the total number of rodent species in which albinism has been recorded globally to 76. While native Australian species represent only 7.8% of the world's murid rodent diversity, they now account for 42.1% of murid rodent species known to exhibit albinism. We also identified multiple concurrent albino records from a small island population of rakali (Hydromys chrysogaster) and discuss the factors that may contribute to the relatively high frequency (2%) of the condition on this island. We suggest that the small number of native albino rodents recorded in mainland Australia over the last 100 years means that traits associated with the condition are likely deleterious within populations and are thus selected against. |
| first_indexed | 2024-04-09T20:57:31Z |
| format | Article |
| id | doaj.art-879df9a9873e43eb93e910f8e08be851 |
| institution | Directory Open Access Journal |
| issn | 2045-7758 |
| language | English |
| last_indexed | 2024-04-09T20:57:31Z |
| publishDate | 2023-03-01 |
| publisher | Wiley |
| record_format | Article |
| series | Ecology and Evolution |
| spelling | doaj.art-879df9a9873e43eb93e910f8e08be8512023-03-29T14:14:47ZengWileyEcology and Evolution2045-77582023-03-01133n/an/a10.1002/ece3.9942Ghost rodents: Albinism in Australian rodent speciesDarcy Watchorn0Chris Dickman1Judy Dunlop2Emmalie Sanders3Molly Watchorn4Phoebe Burns5Centre for Integrative Ecology, School of Life and Environmental Sciences (Burwood Campus) Deakin University Geelong Victoria AustraliaSchool of Life and Environmental Sciences University of Sydney Sydney New South Wales 2006 AustraliaWestern Australian Feral Cat Working Group 58 Sutton St, Mandurah Mandurah Western Australia 6210 AustraliaSchool of Agricultural, Veterinary and Environmental Sciences Charles Sturt University Albury New South Wales 2640 AustraliaLife Sciences Zoos Victoria Parkville Victoria 3052 AustraliaWildlife Conservation and Science Zoos Victoria Parkville Victoria 3052 AustraliaAbstract While almost half of all mammal species are rodents, records of albinism in free‐ranging rodents are very rare. Australia has a large and diverse assemblage of native rodent species, but there are no records of free‐ranging albino rodents in the published literature. In this study, we aim to improve our understanding of the occurrence of albinism in Australian rodent species by collating contemporary and historic records of this condition and providing an estimate of its frequency. We found 23 records of albinism (i.e., a complete loss of pigmentation), representing eight species, in free‐ranging rodents native to Australia, with the frequency of albinism being generally <0.1%. Our findings bring the total number of rodent species in which albinism has been recorded globally to 76. While native Australian species represent only 7.8% of the world's murid rodent diversity, they now account for 42.1% of murid rodent species known to exhibit albinism. We also identified multiple concurrent albino records from a small island population of rakali (Hydromys chrysogaster) and discuss the factors that may contribute to the relatively high frequency (2%) of the condition on this island. We suggest that the small number of native albino rodents recorded in mainland Australia over the last 100 years means that traits associated with the condition are likely deleterious within populations and are thus selected against.https://doi.org/10.1002/ece3.9942albinomammalmouseMuridaepelagerat |
| spellingShingle | Darcy Watchorn Chris Dickman Judy Dunlop Emmalie Sanders Molly Watchorn Phoebe Burns Ghost rodents: Albinism in Australian rodent species Ecology and Evolution albino mammal mouse Muridae pelage rat |
| title | Ghost rodents: Albinism in Australian rodent species |
| title_full | Ghost rodents: Albinism in Australian rodent species |
| title_fullStr | Ghost rodents: Albinism in Australian rodent species |
| title_full_unstemmed | Ghost rodents: Albinism in Australian rodent species |
| title_short | Ghost rodents: Albinism in Australian rodent species |
| title_sort | ghost rodents albinism in australian rodent species |
| topic | albino mammal mouse Muridae pelage rat |
| url | https://doi.org/10.1002/ece3.9942 |
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