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Cloud rat

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Cloud rats
Temporal range: Middle pleistocene - Recent
"Phloeomys pallidus"
Northern Luzon slender-tailed cloud rat (Phloeomys pallidus) at the Cincinnati Zoo
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Rodentia
Family: Muridae
Subfamily: Murinae
Tribe: Phloeomyini
Alston, 1876
Genera[1]
Diversity
21 species

The cloud rats or cloudrunners are a tribe (Phloeomyini)[2] of arboreal and nocturnal herbivorous rodents endemic to the cloud forests of the Philippines. They belong to the family Muridae and include five genera: Batomys (hairy-tailed rats), Carpomys (dwarf cloud rats), Crateromys (bushy-tailed cloud rats), Musseromys (Luzon tree mice), and Phloeomys (giant cloud rats). They range in size from as large as 50 cm (20 in) to as small as 74 mm (2.9 in). Cloud rats are threatened by habitat loss and illegal hunting. Several species are endangered or critically endangered.[3][4][5]

Description

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Cloud rats are characterized by long furry or hairy tails and short hind limbs with grasping feet. They spend most of their time in the canopy of cloud forests, hence the name "cloud rat" or "cloudrunner". They are believed to be entirely herbivorous, primarily eating leaves, buds, bark, fruits, and seeds. Their ecology and behavior are poorly known. Cloud rats belonging to the genera Batomys, Crateromys, and Phloeomys are typically large, with the largest species being Phloeomys pallidus (reaching up to 2.7 kg (6.0 lb) in weight) and Crateromys schadenbergi (reaching up to 1.5 kg (3.3 lb) in weight). They measure from around 20 to 50 cm (7.9 to 19.7 in) in length. Members of the genera Carpomys and Batomys are smaller, with a maximum weight of 165 g (0.364 lb) and 225 g (0.496 lb), respectively. The smallest are members of the recently-described genus Musseromys, with a recorded weight of only 15.5 g (0.034 lb) and body lengths of only 74 to 84 mm (2.9 to 3.3 in).[3][6]

Conservation

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Several species of cloud rats are classified as endangered or critically endangered by the IUCN. Cloud rats are primarily threatened with habitat loss and human encroachment due to the extensive deforestation of the Philippines. Larger species of cloud rats (Phloeomys and Crateromys spp.) are also hunted for food, usually by hunter-gatherer tribes in the mountains of the Philippines. In some areas, they are the most commonly hunted species, and hundreds of animals are estimated to be killed annually. Hunting or possession of wildlife is illegal in the Philippines, under Republic Act 9147 (the Wildlife Protection and Conservation Law of 2001), but enforcement still remains problematic.[5][7][8][9][10]

Several zoos keep and breed cloud rats in captivity; including the London Zoo,[11] Prague Zoo, Central Park Zoo, Bronx Zoo, Wingham Wildlife Park,[12] Chester Zoo,[13] and the Jerusalem Biblical Zoo.[14]

Taxonomy

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The cloud rat clade (the "Phloeomys division", sensu Musser & Carleton, 2005), now treated as the tribe Phloeomyini (LeCompte et al., 2008), includes the closely related genera Batomys (hairy-taled rats), Carpomys (dwarf cloud rats), Crateromys (bushy-tailed cloud rats), Musseromys (Luzon tree mice), and Phloeomys (giant cloud rats). They belong to the subfamily Murinae of the family Muridae (rats and mice).[1][3][15]

Hamiguitan hairy-tailed rat (Batomys hamiguitan) from Mount Hamiguitan in southeastern Mindanao
Northern Luzon giant cloud rat (Phloeomys pallidus) in Jardin des plantes in Paris

Note: Extinct species known only from fossils are marked with †

See also

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References

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  1. ^ a b Musser, G. G.; Carleton, M. D. (2005). "Superfamily Muroidea". In Wilson, D. E.; Reeder, D. M. (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. p. 1301. ISBN 978-0-8018-8221-0. OCLC 62265494.
  2. ^ Database, Mammal Diversity (2021-11-06), Mammal Diversity Database, doi:10.5281/zenodo.5651212, retrieved 2021-12-01
  3. ^ a b c d Heaney, Lawrence R.; Balete, Danilo S.; Rickart, Eric A.; Veluz, Maria Josefa; Jansa, Sharon A. (16 May 2014). "Three New Species of Musseromys (Muridae, Rodentia), the Endemic Philippine Tree Mouse from Luzon Island". American Museum Novitates (3802): 1–27. doi:10.1206/3802.1. S2CID 53542249.
  4. ^ van der Geer, Alexandra; et al. (2010). Evolution of island mammals : adaptation and extinction of placental mammals on islands. Hoboken, NJ: Wiley-Blackwell. p. 226. ISBN 978-1-4051-9009-1.
  5. ^ a b Oliver, W. L. R.; Cox, C. R.; Gonzales, P. C.; Heaney, L. R. (January 1993). "Cloud rats in the Philippines — preliminary report on distribution and status". Oryx. 27 (1): 41–48. doi:10.1017/S0030605300023942.
  6. ^ Musser, Guy. "Cloud rat". Britannica. Encyclopædia Britannica, Inc. Retrieved 23 April 2021.
  7. ^ Heaney, L.R.; Mallari, N.A.D. (2002). "A preliminary analysis of current gaps in the protection of threatened Philippine terrestrial mammals". Sylvatrop. 10 (2000): 28–39.
  8. ^ Russell, Ruby (19 July 2016). "Cloud rats of the sky islands: 28 new mammal species found in the Philippines". DW. Retrieved 23 April 2021.
  9. ^ "A rediscovery of Dinagat bushy-tailed cloud rat helped starting conservation activities on Dinagat Island, Philippines". Tarsius Project. Retrieved 23 April 2021.
  10. ^ Flora, Ian Ocampo (5 April 2021). "2 giant cloud rats rescued". SunStar. Retrieved 23 April 2021.
  11. ^ "Cloud rat arrives at London Zoo". BBC News. 2004-11-11. Retrieved 2008-04-28.
  12. ^ "Northern Luzon Cloud Rat". Wingham Wildlife Park. Retrieved 5 September 2019.
  13. ^ "Chester Zoo has just become home to a tree kangaroo called Sangria". Chester Live. 2018-05-23. Retrieved 2019-10-04.
  14. ^ "White Nights Exhibit". www.jerusalemzoo.org. Retrieved 2022-06-01.
  15. ^ Heaney, Lawrence Richard; Balete, Danilo S.; Duya, Mariano Roy M.; Duya, Melizar V.; Jansa, Sharon A.; Steppan, Scott J.; Rickart, Eric A. (15 July 2016). "Doubling diversity: a cautionary tale of previously unsuspected mammalian diversity on a tropical oceanic island". Frontiers of Biogeography. 8 (2). doi:10.21425/F58229667.
  16. ^ Balete, D.S.; Heaney, L.R.; Rickart, E.A.; Quidlat, R.S.; Ibañez, J.C. (2008). "A new species of Batomys (Mammalia: Muridae) from eastern Mindanao Island, Philippines". Proceedings of the Biological Society of Washington. 121 (4): 411–428. doi:10.2988/07-47.1. S2CID 129828157.
  17. ^ Balete, D.S.; Rickart, E.A.; Heaney, L.R.; Jansa, S.A. (2015). "A new species of Batomys (Muridae, Rodentia) from southern Luzon Island, Philippines". Proceedings of the Biological Society of Washington. 128 (1): 22–39. doi:10.2988/0006-324X-128.1.22.
  18. ^ a b c Ochoa, Janine; Mijares, Armand S B; Piper, Philip J; Reyes, Marian C; Heaney, Lawrence R (2021-04-23). "Three new extinct species from the endemic Philippine cloud rat radiation (Rodentia, Muridae, Phloeomyini)". Journal of Mammalogy. 102 (gyab023): 909–930. doi:10.1093/jmammal/gyab023. ISSN 0022-2372.
  19. ^ Reyes, Marian C.; Ingicco, Thomas; Piper, Philip J.; Amano, Noel; Pawlik, Alfred F. (January 2017). "First fossil evidence of the extinct Philippine cloud rat Crateromys paulus (Muridae: Murinae: Phloeomyini) from Ilin Island, Mindoro, and insights into its Holocene abundance". Proceedings of the Biological Society of Washington. 130 (1): 84–97. doi:10.2988/17-00012. S2CID 135196784.
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