The cerrado mouse has a head-and-body length of more than 90 mm (3.5 in) and is larger than the only other species in the genus, the hairy-eared cerrado mouse (Thalpomys lasiotis). The fur is dense and rather stiff. The general colouring resembles some members of the Oligoryzomys genus. The dorsal pelage is reddish-brown, the individual hairs having blackish bases, orange central sections and blackish tips. There are also longer black guard hairs. The flanks and underparts are paler. The chin is buff and the eye-ring and cheeks orangish. The upper surfaces of the hindfeet are buff; they are small, with short outer toes and tiny claws. The tail, which is well-haired, is brown above and buff below. The diploid number is 36.[2]
Distribution and habitatEdit
This mouse is restricted to the cerrado ecoregion in Brazil, occurring in the states of Bahia, Goiás and Mato Grosso. It inhabits open grassland, savannah with occasional trees and wetter grassland areas with palms. It readily recolonises areas affected by wildfires, and is at its most numerous less than two years later.[2]
EcologyEdit
The cerrado mouse is most active soon after dusk and in the hours before dawn. In the state of Bahia, it is hardly ever caught in the live traps used by researchers for surveying small mammals, but its presence in the area is confirmed by its abundance in barn owl pellets (the undigested parts of their prey that the owls regurgitate).[2]
StatusEdit
This mouse has a wide range but a rather patchy distribution.[1] The cerrado grassland in which it lives is increasingly being threatened by the expansion of industrial-scale farming, the burning of vegetation for charcoal and the development of dams to provide irrigation.[3] Although the population of the mouse may be in general decline, the International Union for Conservation of Nature has assessed its conservation status as being of least concern because it believes the rate of population decline is not fast enough to justify placing it in a more threatened category.[1]
ReferencesEdit
^ abcMarinho Filho, J.; Bonvicino, C.R.; Vieira, E. (2017). "Thalpomys cerradensis". IUCN Red List of Threatened Species. 2017: e.T21694A22339323. doi:10.2305/IUCN.UK.2017-2.RLTS.T21694A22339323.en. Retrieved 19 November 2021.
^ abcGardner, Alfred L.; Patton, James L.; Pardiñas, Ulyses F.J.; D’Elía, Guillermo (2015). Mammals of South America, Volume 2: Rodents. University of Chicago Press. pp. 274–275. ISBN978-0-226-16957-6.
^Hilaire, Eric (December 22, 2011). "Disappearing Cerrado: Brazil's great untold environmental disaster". London: Guardian. Retrieved 2011-12-22.
August 26, 2023
cerrado, mouse, cerrado, mouse, thalpomys, cerradensis, rodent, species, from, south, america, found, cerrado, brazil, conservation, statusleast, concern, iucn, scientific, classificationdomain, eukaryotakingdom, animaliaphylum, chordataclass, mammaliaorder, r. The cerrado mouse Thalpomys cerradensis is a rodent species from South America It is found in the cerrado of Brazil Cerrado mouseConservation statusLeast Concern IUCN 3 1 1 Scientific classificationDomain EukaryotaKingdom AnimaliaPhylum ChordataClass MammaliaOrder RodentiaFamily CricetidaeSubfamily SigmodontinaeGenus ThalpomysSpecies T cerradensisBinomial nameThalpomys cerradensisHershkovitz 1990 Contents 1 Description 2 Distribution and habitat 3 Ecology 4 Status 5 ReferencesDescription EditThe cerrado mouse has a head and body length of more than 90 mm 3 5 in and is larger than the only other species in the genus the hairy eared cerrado mouse Thalpomys lasiotis The fur is dense and rather stiff The general colouring resembles some members of the Oligoryzomys genus The dorsal pelage is reddish brown the individual hairs having blackish bases orange central sections and blackish tips There are also longer black guard hairs The flanks and underparts are paler The chin is buff and the eye ring and cheeks orangish The upper surfaces of the hindfeet are buff they are small with short outer toes and tiny claws The tail which is well haired is brown above and buff below The diploid number is 36 2 Distribution and habitat EditThis mouse is restricted to the cerrado ecoregion in Brazil occurring in the states of Bahia Goias and Mato Grosso It inhabits open grassland savannah with occasional trees and wetter grassland areas with palms It readily recolonises areas affected by wildfires and is at its most numerous less than two years later 2 Ecology EditThe cerrado mouse is most active soon after dusk and in the hours before dawn In the state of Bahia it is hardly ever caught in the live traps used by researchers for surveying small mammals but its presence in the area is confirmed by its abundance in barn owl pellets the undigested parts of their prey that the owls regurgitate 2 Status EditThis mouse has a wide range but a rather patchy distribution 1 The cerrado grassland in which it lives is increasingly being threatened by the expansion of industrial scale farming the burning of vegetation for charcoal and the development of dams to provide irrigation 3 Although the population of the mouse may be in general decline the International Union for Conservation of Nature has assessed its conservation status as being of least concern because it believes the rate of population decline is not fast enough to justify placing it in a more threatened category 1 References Edit a b c Marinho Filho J Bonvicino C R Vieira E 2017 Thalpomys cerradensis IUCN Red List of Threatened Species 2017 e T21694A22339323 doi 10 2305 IUCN UK 2017 2 RLTS T21694A22339323 en Retrieved 19 November 2021 a b c Gardner Alfred L Patton James L Pardinas Ulyses F J D Elia Guillermo 2015 Mammals of South America Volume 2 Rodents University of Chicago Press pp 274 275 ISBN 978 0 226 16957 6 Hilaire Eric December 22 2011 Disappearing Cerrado Brazil s great untold environmental disaster London Guardian Retrieved 2011 12 22 Retrieved from https en wikipedia org w index php title Cerrado mouse amp oldid 1158383106, wikipedia, wiki, book, books, library,
