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Distribution ( englanti )

tarjonnut Animal Diversity Web

This species occupies a range from southeastern and central Brazil through Uruguay, Paraguay, and northeastern Argentina.

Biogeographic Regions: neotropical

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Trophic Strategy ( englanti )

tarjonnut Animal Diversity Web

Stomach samples from this species have indicated a diverse diet ranging from plant material and seeds to adult and larval coleopterans, lepidopterans, and dipterans.

Animal Foods: insects

Plant Foods: leaves; seeds, grains, and nuts

Primary Diet: omnivore

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Associations ( englanti )

tarjonnut Animal Diversity Web

Akodon cursor is a mouse that typically occurs in great abundance in open, dry areas. It often preys on small insects and plant material. It may also disperse seeds that are ingested as food. This species also acts as food for larger mammals, snakes, and raptors.

Ecosystem Impact: disperses seeds

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Benefits ( englanti )

tarjonnut Animal Diversity Web

Despite the reputation of rodents to damage crops, this has not been observed in this species. The diet of this species, which includes insects, may actually help reduce farm pests and crop damage.

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Benefits ( englanti )

tarjonnut Animal Diversity Web

There are no known negative impacts of Akodon cursor on humans.

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Conservation Status ( englanti )

tarjonnut Animal Diversity Web

Akodon cursor is abundant in appropriate habitats, they are not protected under CITES or IUCN.

US Federal List: no special status

CITES: no special status

IUCN Red List of Threatened Species: least concern

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Behavior ( englanti )

tarjonnut Animal Diversity Web

Akodon cursor, like most mammals, relies on a suite of visual, auditory, chemical, and tactile cues for communicating with conspecifics. It is likely that olfactory cues are important in communicating territories and reproductive activity.

Communication Channels: visual ; tactile ; acoustic ; chemical

Perception Channels: visual ; tactile ; acoustic ; chemical

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Nimetön ( englanti )

tarjonnut Animal Diversity Web

A recent study has shown that females of this species have exhibited an XY chromosome combination in 10-66% of samples. Sex ratio of males to females is typically 1:1.

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Habitat ( englanti )

tarjonnut Animal Diversity Web

Akodon cursor is one of the most common species in the forest and forest-grassland ecotones. In Misiones province, Argentina, they are found in a variety of habitats but prefe flat and xeric, semi-deciduous areas. This species also displays spatial partitioning with Akodon montensis. Akodon cursor dominates elevations from 0-800m leaving Akodon montensis to dominate elevations exceeding 800m. Populations of Akodon cursor flourish in dry, open areas with little human influence.

Range elevation: 0 to 800 m.

Habitat Regions: tropical ; terrestrial

Terrestrial Biomes: savanna or grassland ; forest ; scrub forest

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Life Expectancy ( englanti )

tarjonnut Animal Diversity Web

There is little information on longevity in Akodon cursor. It is likely that most mortality occurs during their first year and that they are unlikely to reach their third year.

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Morphology ( englanti )

tarjonnut Animal Diversity Web

Akodon cursor is a medium sized, vole-like mouse, with short limbs, and a short tail. The pelage is soft and full with a reddish brown to olive brown color dorsally, fading to more of a tan on the sides and gradually becoming a reddish tan to gray washed with orange on the venter. The tail is sparsely haired and almost bicolored. The feet are tan and the face shows some blackish hairs. Juveniles weigh around 30g for females and 28g for males. The sub-adult class contains females ranging from 30g-40g and males ranging from 28g-45g. Adult males weigh around 45g and adult females can weigh greater than 40g.

Range mass: 40 to 45 g.

Other Physical Features: endothermic ; bilateral symmetry

Sexual Dimorphism: male larger

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Associations ( englanti )

tarjonnut Animal Diversity Web

Akodon cursor blends well with it's environment and utilizes ground cover and brush to hide from predators. A variety of raptors and carnivores feed on this species.

Known Predators:

  • snakes (Serpentes)
  • diurnal raptors (Falconiformes)
  • small to medium-sized mammalian carnivores (Mammalia)
  • owls (Strigiformes)

Anti-predator Adaptations: cryptic

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Reproduction ( englanti )

tarjonnut Animal Diversity Web

There is little information on mating in Akodon cursor.

Breeding season is typically from September to March, however, this species will breed year round opportunistically if conditions are right. Reproduction is also tied to habitat availability. During the rainy season habitat is lost to flooding and scarcity of litter and understory. Most births usually occur in dry periods but reproductive patterns are not distinct. As a result most juveniles are present during periods of low precipitation. The litter size is usually three and average gestation time of other Akodon species is 23 days. Young are weaned at about 14 days old in other Akodon species. Akodon cursor will occasionally hybridize with other species of the same genus including Akodon montensis. Many females retain a copulatory plug to indicate they have mated. For males, sexual maturity occurs at 32-37 days old and at 28g. For females, sexual maturity is delayed to around 42 days or at a weight of 30g. Overall, this species has a short life expectancy, short gestation time, and early maturity which results in rapid population turnover and quick responses to environmental variation. Delayed implantation is thought to occur in some species of Akodon and may occur in Akodon cursor as well.

Breeding interval: Breeding occurs continually during conditions appropriate for breeding, as few as twice yearly or as often as every month.

Breeding season: Breeding typically occurs from September to March, but may occur year-round.

Average number of offspring: 3.

Average gestation period: 23 days.

Average weaning age: 14 days.

Average age at sexual or reproductive maturity (female): 42 days.

Range age at sexual or reproductive maturity (male): 32 to 37 days.

Key Reproductive Features: iteroparous ; seasonal breeding ; year-round breeding ; gonochoric/gonochoristic/dioecious (sexes separate); sexual ; viviparous ; delayed implantation

Young are nursed and cared by their mother for until they are weaned at about 14 days old.

Parental Investment: altricial ; female parental care

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Akodon cursor ( asturia )

tarjonnut wikipedia AST

El mure de yerba amosador o acodonte amosador (akodon cursor),[1]ye una especie de royedor d'América del Sur.

Llocalización

Alcuéntrase en Brasil.

Referencies

  1. Christoff, A., Geise, L., Fagundes, V., Pardinas, O. & D'Elia, G. (2008). Akodon cursor. En: UICN 2008. Llista Roxa d'Especies Amenazaes UICN. Consultáu'l 9 February 2009.

Enllaces esternos

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Akodon cursor: Brief Summary ( asturia )

tarjonnut wikipedia AST

El mure de yerba amosador o acodonte amosador (akodon cursor),ye una especie de royedor d'América del Sur.

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Akodon cursor ( valencia )

tarjonnut wikipedia CA

Akodon cursor és una espècie de rosegador de Sud-amèrica. Viu a l'Argentina i el Brasil. El seu hàbitat natural són els boscos humits perennes i les selves pluvials. Es creu que no hi ha cap amenaça significativa per a la supervivència d'aquesta espècie.[1]

Referències

  1. Christoff, A.; Geise, L.; Fagundes, V.; Pardiñas, U.; D'Elía, G.. Akodon cursor. UICN 2008. Llista Vermella d'espècies amenaçades de la UICN, edició 2008, consultada el 25 novembre 2009.
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Akodon cursor: Brief Summary ( valencia )

tarjonnut wikipedia CA

Akodon cursor és una espècie de rosegador de Sud-amèrica. Viu a l'Argentina i el Brasil. El seu hàbitat natural són els boscos humits perennes i les selves pluvials. Es creu que no hi ha cap amenaça significativa per a la supervivència d'aquesta espècie.

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Cursor grass mouse ( englanti )

tarjonnut wikipedia EN

The cursor grass mouse or cursorial akodont (Akodon cursor), is a sigmodontine rodent from South America.[2]

Description

The cursor grass mouse is a moderately sized rodent, with a head-body length of 11 to 13 centimetres (4.3 to 5.1 in), and a tail 8 to 11 centimetres (3.1 to 4.3 in) long. Males are larger than females, weighing an average of 54 grams (1.9 oz), compared with 43 g (1.5 oz) for females. They have a typical mouse-like appearance, with short whiskers and stubby claws on the feet. They have dark to golden brown fur over most of their body, with paler greyish or yellowish underparts. Some have a whitish spot between the ears, but this is not present on all individuals.[3]

Cursor grass mice are members of the A. cursor species group, and very similar in appearance to other members of the group. In particular, they cannot easily be distinguished from the closely related montane grass mouse, which inhabits neighbouring regions to the immediate south. Although the cursor grass mouse is, on average, slightly larger than the montane species, there is too much overlap for this to be a reliable guide. Instead, they can most readily be distinguished by the presence of a gall bladder in A. cursor (absent in the montane species), by karyotypic analysis, or by means of PCR based techniques.[3][4][5][6]

Distribution and habitat

The exact geographic range of the cursor grass mouse is disputed. It is definitively known to inhabit eastern Brazil from Paraiba to Paraná, where it lives in patches of tropical Atlantic Forest and restinga scrubland at elevations from sea level to 1,170 metres (3,840 ft). Some sources[1] also report it as being found further south, in extreme southern Brazil, in eastern Paraguay, and in northern Argentina.[7] These latter sources lack a definitive genetic analysis of the individuals identified, and it has been argued that they may represent members of other species, such as the montane grass mouse.[3] No subspecies are recognised.

Biology and behaviour

Cursor grass mice are omnivorous. Their primary diet consists of small arthropods, especially Hymenoptera, beetles, and spiders; this is supplemented by seeds of Cecropia and other plants.[8] They search for food through leaf litter and patches of dense vegetation, and are strictly terrestrial.[9][10] Individuals have a home range of 0.1 to 0.7 hectares (0.25 to 1.73 acres), with the ranges of males being larger than those of females.[11] Although the size of their home ranges does not change, the population density of cursor grass mice becomes significantly higher during the rainy season, when insects are most abundant.[12]

Cursor grass mice breed throughout the year, although most births occur during the dry season between June and September. Pregnant females construct globular nests, and give birth to a litter of two to nine young, with an average of four, after a gestation period of 23 days.[3][13]

This species is particularly important for public health since it has been implied as a Hantavirus reservoir.[14]

A cell line derived from a liposarcoma in a cursor grass mouse has been used by biomedical scientists in the construction of a panel for the identification of human chromosomes in hybrid cells.[15]

References

  1. ^ a b Christoff, A.; Geise, L.; Fagundes, V.; Pardinas, U. & D'Elia, G. (2008). "Akodon cursor". IUCN Red List of Threatened Species. 2008. Retrieved 9 February 2009.old-form url
  2. ^ 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. 1094. ISBN 978-0-8018-8221-0. OCLC 62265494.
  3. ^ a b c d Geise, L. (2012). "Akodon cursor (Rodentia: Cricetidae)". Mammalian Species. 44 (1): 33–43. doi:10.1644/893.1.
  4. ^ Geise, L.; et al. (2004). "Presence or absence of gall bladder in some Akodontini rodents (Muridae, Sigmodontinae)". Mammalian Biology. 69 (3): 210–214. doi:10.1078/1616-5047-00136.
  5. ^ Yazbeck, G.M.; et al. (2011). "Detection of two morphologically cryptic species from the cursor complex (Akodon spp; Rodentia, Cricetidae) through the use of RAPD markers". Genetics and Molecular Research. 10 (4): 2881–2892. doi:10.4238/2011.November.22.2. PMID 22179960.
  6. ^ Fagundes, V.; Nogueira, C.D.A. (2007). "The use of PCR-RFLP as an identification tool for three closely related species of rodents of the genus Akodon (Sigmodontinae, Akodontini)". Genetics and Molecular Biology. 30 (3): 698–701. doi:10.1590/S1415-47572007000400031.
  7. ^ Pardiñas, U.F.J.; et al. (2003). "The genus Akodon (Muroidea: Sigmodontinae) in Misiones, Argentina". Mammalian Biology. 68 (3): 129–143. doi:10.1078/1616-5047-00075.
  8. ^ Carvalho, F.M.V.; et al. (1999). "Diet of small mammals in the Atlantic Forest fragments in southeastern Brazil". Revista Brasileira de Zoociências. 1 (1): 91–101.
  9. ^ Gentile R.; Fernandez, F.A.S. (1999). "Influence of habitat structure on a streamside small mammal community in a Brazilian rural area". Mammalia. 63 (1): 29–40. doi:10.1515/mamm.1999.63.1.29. S2CID 86350416.
  10. ^ Pardini, R. (2004). "Effects of forest fragmentation on small mammals in an Atlantic Forest landscape". Biodiversity and Conservation. 13 (13): 2567–2586. doi:10.1023/B:BIOC.0000048452.18878.2d. S2CID 34986625.
  11. ^ Gentile, R.; et al. (1997). "Home range of Philander frenata and Akodon cursor in a Brazilian Restinga (coastal shrubland)" (PDF). Mastozoologia Neotropical. 4 (2): 105–112.
  12. ^ Feliciano, B.R.; et al. (2002). "Population dynamics of small rodents in a grassland among fragments of Atlantic Forest in southern Brazil". Mammalian Biology. 67 (5): 304–314. doi:10.1078/1616-5047-00045.
  13. ^ Aulchenko, Y.S. (2002). "Inheritance of litter size at birth in the Brazilian grass mouse (Akodon cursor, Sigmodontinae, Rodentia)". Genetics Research. 80 (1): 55–62. doi:10.1017/S0016672302005839. PMID 12448852.
  14. ^ Lemos; et al. (2004). "Evidence of hantavirus infection in wild rodents captured in a rural area of the state of São Paulo, Brazil". Pesquisa Veterinária Brasileira. 24 (2): 71–73. doi:10.1590/S0100-736X2004000200004.
  15. ^ Bonvicino, C.R.; et al. (2001). "Induction and characterization of hypoxanthine-phosphoribosyltransferase (Hprt−) deficient cell lines of Akodon cursor (Rodentia, Sigmodontinae)". Cytogenetics and Cell Genetics. 92 (1–2): 153–156. doi:10.1159/000056888. PMID 11306816. S2CID 20619112.
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Cursor grass mouse: Brief Summary ( englanti )

tarjonnut wikipedia EN

The cursor grass mouse or cursorial akodont (Akodon cursor), is a sigmodontine rodent from South America.

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Akodon cursor ( kastilia )

tarjonnut wikipedia ES

El ratón de hierba mostrador o acodonte mostrador (akodon cursor),[1]​es una especie de roedor de América del Sur. Se lo encuentra en Brasil.

Referencias

  1. Christoff, A., Geise, L., Fagundes, V., Pardinas, U. & D'Elia, G. (2008). «Akodon cursor». Lista Roja de especies amenazadas de la UICN 2008 (en inglés). ISSN 2307-8235. Consultado el 9 de febrero de 2009.

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Akodon cursor: Brief Summary ( kastilia )

tarjonnut wikipedia ES

El ratón de hierba mostrador o acodonte mostrador (akodon cursor),​es una especie de roedor de América del Sur. Se lo encuentra en Brasil.

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Akodon cursor ( baski )

tarjonnut wikipedia EU

Akodon cursor Akodon generoko animalia da. Karraskarien barruko Sigmodontinae azpifamilia eta Cricetidae familian sailkatuta dago.

Erreferentziak

  1. (Ingelesez)Mammals - full taxonomy and Red List status Ugaztun guztien egoera 2008an
  2. Winge (1887) Cricetidae E Museo Lundii 25. or..

Ikus, gainera

(RLQ=window.RLQ||[]).push(function(){mw.log.warn("Gadget "ErrefAurrebista" was not loaded. Please migrate it to use ResourceLoader. See u003Chttps://eu.wikipedia.org/wiki/Berezi:Gadgetaku003E.");});
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Akodon cursor: Brief Summary ( baski )

tarjonnut wikipedia EU

Akodon cursor Akodon generoko animalia da. Karraskarien barruko Sigmodontinae azpifamilia eta Cricetidae familian sailkatuta dago.

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Akodon cursor ( ranska )

tarjonnut wikipedia FR

Akodon cursor est une espèce de rongeurs de la famille des Cricétidés vivant en Amérique du Sud.

Répartition et habitat

Cette espèce est présente dans la forêt Atlantique au Brésil et en Argentine[3].

Notes et références

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Akodon cursor: Brief Summary ( ranska )

tarjonnut wikipedia FR

Akodon cursor est une espèce de rongeurs de la famille des Cricétidés vivant en Amérique du Sud.

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Akodon cursor ( flaami )

tarjonnut wikipedia NL

Akodon cursor is een zoogdier uit de familie van de Cricetidae. De wetenschappelijke naam van de soort werd voor het eerst geldig gepubliceerd door Winge in 1887.

Verspreidingsgebied

De soort wordt aangetroffen in Brazilië en Argentinië.

Bronnen, noten en/of referenties
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Akodon cursor: Brief Summary ( flaami )

tarjonnut wikipedia NL

Akodon cursor is een zoogdier uit de familie van de Cricetidae. De wetenschappelijke naam van de soort werd voor het eerst geldig gepubliceerd door Winge in 1887.

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Akodon cursor ( portugali )

tarjonnut wikipedia PT

Akodon cursor, popularmente denominado de rato-do-chão, é uma espécie de roedor da família Cricetidae.[2] Pode ser encontrada principalmente no Brasil, mas há relatos de existir também na Argentina e no Paraguai.[1][3]

Descrição

É um roedor de tamanho médio, com comprimento da cabeça e corpo de 11–13 centímetros (4,3–5,1 in) e uma cauda de 8–11 centímetros (3,1–4,3 in) de comprimento. Os machos são maiores do que as fêmeas, pesando em média 54 gramas (1,9 oz), em comparação com 43 g (1,5 oz) das fêmeas. Possuem aparência típica de rato, com bigodes curtos e garras atarracadas nos pés.[4] O pelo possui cor castanho-claro ao castanho-escuro, sem limite definido com a pelagem do ventre, que é cinza-amarelada ou cinza-esbranquiçada.[5] Alguns têm uma mancha esbranquiçada entre as orelhas, mas isso não está presente em todos os indivíduos.[4]

A espécie integra o complexo específico A. Cursor, sendo muito semelhantes em aparência aos outros membros do grupo. Em particular, não podem ser facilmente distinguidos do camundongo Akodon montensis, que habita regiões vizinhas ao sul. Em média, é ligeiramente maior do que as espécies da Akodon montensis, mas pode ser mais facilmente distinguida pela presença de uma vesícula biliar.[4][6][7][8]

Distribuição e habitat

Seu alcance geográfico é disputado. É definitivamente conhecido por habitar o leste do Brasil, da Paraíba ao Paraná, onde vive em fragmentos da Mata Atlântica tropical e matagal de restinga, vivendo em altitudes desde o nível do mar até 1 170 metros (3 800 pé). Algumas fontes[1] também relataram que foi encontrado mais ao sul, no extremo sul do Brasil, no leste do Paraguai e no norte da Argentina.[3] Estas últimas fontes carecem de uma análise genética definitiva dos indivíduos identificados, e foi argumentado que podem representar membros de outras espécies, como o Akodon montensis.[4] Não é subespécies reconhecidas.[1]

Geneticistas da Universidade Federal do Espírito Santo realizaram estudos de variabilidade genética e cariotípica e sugerem que existem distinção genética entre as populações do nordeste e sudeste. No momento, não existem evidências de se tratar de mais de uma espécie, mas acredita-se que este seja um caso de uma espécie em pleno processo de especiação.[9]

Biologia e comportamento

É uma espécie onívora. Sua dieta principal consiste em pequenos artrópodes, especialmente Hymenoptera, besouros e aranhas; alimenta-se de forma complementar com sementes de Cecropia e outras plantas.[10] Procura alimento através de serapilheira e manchas de vegetação densa e são estritamente terrestres.[11][12] Mantém uma "área residencial" de 0,1–0,7 hectares, com as áreas dos machos sendo maiores do que as das fêmeas.[13] Embora o tamanho de suas áreas de habitação não mude, a densidade populacional torna-se significativamente maior durante a estação chuvosa, quando os insetos são mais abundantes.[14]

A espécie se reproduz ao longo do ano, embora a maioria dos nascimentos ocorra durante a estação seca entre junho e setembro. As fêmeas grávidas constroem ninhos globulares e dão à luz uma ninhada de dois a nove filhotes, em média quatro, após um período de gestação de 23 dias.[4][15]

É particularmente importante em termos de saúde pública, uma vez que foi considerada um reservatório de Hantavírus.[16]

Uma linha celular derivada de um lipossarcoma da espécie tem sido usada por cientistas biomédicos na construção de um painel para a identificação de cromossomos humanos em células híbridas.[17]

Referências

  1. a b c d Christoff, A.; Geise, L.; Fagundes, V.; Pardinas, U.; D'Elia, G. (2008). «Akodon cursor». Lista Vermelha de Espécies Ameaçadas. 2008. Consultado em 9 de fevereiro de 2009old-form url
  2. «Akodon cursor». Táxeus. 2021. Consultado em 14 de julho de 2021
  3. a b Pardiñas, U.F.J.; et al. (2003). «The genus Akodon (Muroidea: Sigmodontinae) in Misiones, Argentina». Mammalian Biology. 68 (3): 129–143. doi:10.1078/1616-5047-00075
  4. a b c d e Geise, L. (2012). «Akodon cursor (Rodentia: Cricetidae)». Mammalian Species. 44 (1): 33–43. doi:10.1644/893.1
  5. «AKODON CURSOR». Mamíferos do Espírito Santo. 2021. Consultado em 14 de julho de 2021
  6. Geise, L.; et al. (2004). «Presence or absence of gall bladder in some Akodontini rodents (Muridae, Sigmodontinae)». Mammalian Biology. 69 (3): 210–214. doi:10.1078/1616-5047-00136
  7. Yazbeck, G.M.; et al. (2011). «Detection of two morphologically cryptic species from the cursor complex (Akodon spp; Rodentia, Cricetidae) through the use of RAPD markers». Genetics and Molecular Research. 10 (4): 2881–2892. PMID 22179960. doi:10.4238/2011.November.22.2
  8. Fagundes, V.; Nogueira, C.D.A. (2007). «The use of PCR-RFLP as an identification tool for three closely related species of rodents of the genus Akodon (Sigmodontinae, Akodontini)». Genetics and Molecular Biology. 30 (3): 698–701. doi:10.1590/S1415-47572007000400031
  9. Massariol, Cristina Dornelas (Maio de 2016). «Especiação em AKODON CURSOR (WINGE, 1887): uma abordagem multidisciplinar» (PDF). Universidade Federal do Espírito Santo. Vitória, Espírito Santo. Consultado em 14 de julho de 2021
  10. Carvalho, F.M.V.; et al. (1999). «Diet of small mammals in the Atlantic Forest fragments in southeastern Brazil». Revista Brasileira de Zoociências. 1 (1): 91–101 [ligação inativa]
  11. Gentile R.; Fernandez, F.A.S. (1999). «Influence of habitat structure on a streamside small mammal community in a Brazilian rural area». Mammalia. 63 (1): 29–40. doi:10.1515/mamm.1999.63.1.29
  12. Pardini, R. (2004). «Effects of forest fragmentation on small mammals in an Atlantic Forest landscape». Biodiversity and Conservation. 13 (13): 2567–2586. doi:10.1023/B:BIOC.0000048452.18878.2d
  13. Gentile, R.; et al. (1997). «Home range of Philander frenata and Akodon cursor in a Brazilian Restinga (coastal shrubland)» (PDF). Mastozoologia Neotropical. 4 (2): 105–112 [ligação inativa]
  14. Feliciano, B.R.; et al. (2002). «Population dynamics of small rodents in a grassland among fragments of Atlantic Forest in southern Brazil». Mammalian Biology. 67 (5): 304–314. doi:10.1078/1616-5047-00045
  15. Aulchenko, Y.S. (2002). «Inheritance of litter size at birth in the Brazilian grass mouse (Akodon cursor, Sigmodontinae, Rodentia)». Genetics Research. 80 (1): 55–62. PMID 12448852. doi:10.1017/S0016672302005839
  16. Lemos; et al. (2004). «Evidence of hantavirus infection in wild rodents captured in a rural area of the state of São Paulo, Brazil». Pesquisa Veterinária Brasileira. 24 (2): 71–73. doi:10.1590/S0100-736X2004000200004
  17. Bonvicino, C.R.; et al. (2001). «Induction and characterization of hypoxanthine-phosphoribosyltransferase (Hprt−) deficient cell lines of Akodon cursor (Rodentia, Sigmodontinae)». Cytogenetics and Cell Genetics. 92 (1–2): 153–156. PMID 11306816. doi:10.1159/000056888
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Akodon cursor: Brief Summary ( portugali )

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Akodon cursor, popularmente denominado de rato-do-chão, é uma espécie de roedor da família Cricetidae. Pode ser encontrada principalmente no Brasil, mas há relatos de existir também na Argentina e no Paraguai.

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Akodon cursor ( ruotsi )

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Akodon cursor[2][3][4] är en däggdjursart som först beskrevs av Herluf Winge 1887. Akodon cursor ingår i släktet fältmöss, och familjen hamsterartade gnagare.[5][6] IUCN kategoriserar arten globalt som livskraftig.[1] Inga underarter finns listade i Catalogue of Life.[5]

Denna fältmus förekommer i östra Brasilien. En avskild population är känd från norra Argentina. Arten vistas i låglandet och i låga bergstrakter upp till 800 meter över havet. Habitatet utgörs av städsegrön skog.[1]

Arten påminner om en sork i utseende med korta extremiteter och kort svans. Den mjuka och täta pälsen har på ovansidan en brun till gulbrun färg och fram till undersidan blir pälsen ljusare. Hos några individer förekommer en liten vit fläck på hjässan. Akodon cursor skiljer sig från andra arter av samma släkte i avvikande detaljer av skallens konstruktion, tändernas funktion och pälsens färg. Den har ganska korta morrhår. Hannar är med en vikt av cirka 54 g större än honor som väger cirka 43 g.[7] Artens kroppslängd (huvud och bål) är 79 till 128 mm och svanslängden 175 till 230 mm.[8]

Honor kan bli brunstiga under olika årstider men de flesta ungar föds under torra perioder. Dräktigheten varar vanligen 23 dagar och sedan föds oftast tre ungar. Ungarna diar sin mor cirka två veckor. Hanar blir könsmogna efter 32 till 37 dagar och honor efter ungefär 42 dagar.[9] I artens magsäck hittades frön och andra växtdelar samt rester av ryggradslösa djur.[8]

Källor

  1. ^ [a b c] 2008 Akodon cursor Från: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2 <www.iucnredlist.org>. Läst 2012-10-24.
  2. ^ Wilson, Don E., and DeeAnn M. Reeder, eds. (1992) , Mammal Species of the World: A Taxonomic and Geographic Reference, 2nd ed., 3rd printing
  3. ^ (2005) , website Akodon cursor, Mammal Species of the World
  4. ^ Wilson, Don E., and F. Russell Cole (2000) , Common Names of Mammals of the World
  5. ^ [a b] Bisby F.A., Roskov Y.R., Orrell T.M., Nicolson D., Paglinawan L.E., Bailly N., Kirk P.M., Bourgoin T., Baillargeon G., Ouvrard D. (red.) (27 april 2011). ”Species 2000 & ITIS Catalogue of Life: 2011 Annual Checklist.”. Species 2000: Reading, UK. http://www.catalogueoflife.org/annual-checklist/2011/search/all/key/akodon+cursor/match/1. Läst 24 september 2012.
  6. ^ ITIS: The Integrated Taxonomic Information System. Orrell T. (custodian), 2011-04-26
  7. ^ Geise, Lena (27 april 2012). Akodon cursor (på engelska). Mammalian Species #893. American Society of Mammalogists. Arkiverad från originalet den 21 september 2016. https://web.archive.org/web/20160921062045/http://mspecies.oxfordjournals.org/content/mspecies/44/893/33.full.pdf. Läst 8 augusti 2016.
  8. ^ [a b] Eisenberg & Redford (1992): Akodon cursor, Mammals of the Neotropics, band 2, sid. 302
  9. ^ Lars Higdon (27 april 2004). ”Cursor grass mouse” (på engelska). Animal Diversity Web. University of Michigan. http://animaldiversity.org/accounts/Akodon_cursor/. Läst 8 augusti 2016.

Externa länkar

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Akodon cursor: Brief Summary ( ruotsi )

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Akodon cursor är en däggdjursart som först beskrevs av Herluf Winge 1887. Akodon cursor ingår i släktet fältmöss, och familjen hamsterartade gnagare. IUCN kategoriserar arten globalt som livskraftig. Inga underarter finns listade i Catalogue of Life.

Denna fältmus förekommer i östra Brasilien. En avskild population är känd från norra Argentina. Arten vistas i låglandet och i låga bergstrakter upp till 800 meter över havet. Habitatet utgörs av städsegrön skog.

Arten påminner om en sork i utseende med korta extremiteter och kort svans. Den mjuka och täta pälsen har på ovansidan en brun till gulbrun färg och fram till undersidan blir pälsen ljusare. Hos några individer förekommer en liten vit fläck på hjässan. Akodon cursor skiljer sig från andra arter av samma släkte i avvikande detaljer av skallens konstruktion, tändernas funktion och pälsens färg. Den har ganska korta morrhår. Hannar är med en vikt av cirka 54 g större än honor som väger cirka 43 g. Artens kroppslängd (huvud och bål) är 79 till 128 mm och svanslängden 175 till 230 mm.

Honor kan bli brunstiga under olika årstider men de flesta ungar föds under torra perioder. Dräktigheten varar vanligen 23 dagar och sedan föds oftast tre ungar. Ungarna diar sin mor cirka två veckor. Hanar blir könsmogna efter 32 till 37 dagar och honor efter ungefär 42 dagar. I artens magsäck hittades frön och andra växtdelar samt rester av ryggradslösa djur.

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Akodon cursor ( vietnam )

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Akodon cursor là một loài động vật có vú trong họ Cricetidae, bộ Gặm nhấm. Loài này được Winge mô tả năm 1887.[2]

Chú thích

  1. ^ Christoff, A., Geise, L., Fagundes, V., Pardinas, U. & D'Elia, G. (2008). Akodon cursor. 2008 Sách đỏ IUCN. Liên minh Bảo tồn Thiên nhiên Quốc tế 2008. Truy cập ngày 9 tháng 2 năm 2009.
  2. ^ a ă Wilson, D. E.; Reeder, D. M. biên tập (2005). “Akodon cursor”. Mammal Species of the World . Baltimore: Nhà in Đại học Johns Hopkins, 2 tập (2.142 trang). ISBN 978-0-8018-8221-0. OCLC 62265494.

Tham khảo


Hình tượng sơ khai Bài viết liên quan đến phân họ gặm nhấm Sigmodontinae này vẫn còn sơ khai. Bạn có thể giúp Wikipedia bằng cách mở rộng nội dung để bài được hoàn chỉnh hơn.
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Akodon cursor: Brief Summary ( vietnam )

tarjonnut wikipedia VI

Akodon cursor là một loài động vật có vú trong họ Cricetidae, bộ Gặm nhấm. Loài này được Winge mô tả năm 1887.

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커서풀밭쥐 ( Korea )

tarjonnut wikipedia 한국어 위키백과

커서풀밭쥐(Akodon cursor)는 비단털쥐과에 속하는 남아메리카 설치류이다.[2] 아르헨티나브라질에서 발견된다. 자연 서식지는 습윤 상록수림과 열대 우림이다.[1]

특징

커서풀밭쥐는 상당히 큰 설치류로 몸길이가 11~13cm, 꼬리 길이가 8~11cm이다. 수컷이 암컷보다 크며, 암컷 43g에 비해 평균 54g이다. 짧은 수염과 그루터기 발톱이 있는 일반적인 쥐를 닮은 모습을 갖고 있다. 몸 대부분이 짙은 갈색부터 황금색 갈색 털로 덮여 있으며, 배 쪽은 희미한 회색 또는 누르스름한 색을 띤다. 일부는 귀 사이에 희끄무레한 반점이 있지만, 모든 개체에 보이는 것은 아니다.[3]

커서풀밭쥐는 커서풀밭쥐군에 속하고, 다른 종들과 겉모습이 아주 유사하다. 특히 서식지 바로 남쪽 근처 지역에서 서식하는 근연종 저산대풀밭쥐로부터 쉽게 구별할 수 없다. 커서풀밭쥐는 평균적으로 저산대풀밭쥐보다 약간 크지만 서로 구별할 정도로 신뢰성 있는 안내가 되기에는 분포 지역이 많이 중첩된다. 대신에 커서풀밭쥐에만 쓸개가 존재하고(저산대 종에는 없다), 핵형 분석을 통하거나 PCR 기반 기술에 의해 가장 쉽게 구별할 수 있다.[3][4][5][6]

분포 및 서식지

커서풀밭쥐의 정확한 분포 지역에 대해서는 논란이 있다. 브라질 동부 파라이바주부터 파라나 주까지 서식하는 것은 확실히 알려져 있으며, 해수면부터 해발 최대 1170m까지 지역의 열대 대서양림과 레스팅가 관목지대 여기 저기에서 서식한다. 좀더 남쪽인 브라질 남단 그리고 파라과이 동부, 아르헨티나 북부에서 발견되기도 한다.[1][7] 알려진 아종은 없다.

생태 및 습성

커서풀밭쥐는 잡식성 동물이다. 주요 먹이는 작은 절지동물 특히 딱정벌레, 거미로 이루어져 있다. 부가적으로 케크로피아속(Cecropia) 식물 씨앗과 다른 식물을 먹기도 한다.[8] 식물 덮개집과 군데군데 울창한 숲 속에서 먹이를 구하고, 철저히 육상 생활을 한다.[9][10] 한 마리의 행동 영역 면적은 0.1~0.7ha이고, 수컷 영역이 암컷보다 넓다.[11] 행동권 범위의 크기는 변하지 않지만 우기철에 곤충이 아주 풍부해지기 때문에 커서풀밭쥐의 개체수 밀도가 상당히 높아진다.[12]

커서풀밭쥐는 연중 번식을 하지만 대부분 6월과 9월 사이의 건기 동안에 대부분 새끼를 낳는다. 임신한 암컷은 둥글게 구형으로 둥지를 만들고 23일간의 임신 기간 이후에 2~9마리, 평균 4마리의 새끼를 낳는다.[3][13] 한타바이러스의 숙주가 될 수 있기 때문에 공중 보건에서 특히 중요하다.[14] 커서풀밭쥐의 지방육종에서 채취한 세포주는 생의학 과학자들이 잡종 세포에서 사람 염색체의 동정을 위한 패널 제작을 위해 사용된다.[15]

계통 분류

다음은 2010년 자야(Jayat) 등의 연구에 기초한 계통 분류이다.[16]

남아메리카밭쥐속    

테스피아풀밭쥐

     

코차밤바풀밭쥐

   

부딘풀밭쥐

         

흰배풀밭쥐

     

변덕풀밭쥐

   

타르타갈풀밭쥐

   

글라우키누스풀밭쥐

   

흰목풀밭쥐

       

부드러운털풀밭쥐

   

융가스풀밭쥐

     

운무림풀밭쥐

   

엘도라도풀밭쥐

     

콜롬비아풀밭쥐

           

파타고니아풀밭쥐

     

데이풀밭쥐

     

차코풀밭쥐

     

몰리나풀밭쥐

   

코르도바풀밭쥐

               

카파라오풀밭쥐

   

린드버그풀밭쥐

         

필립마이어스풀밭쥐

   

아자라풀밭쥐

           

저산대풀밭쥐

     

레이그풀밭쥐

   

파라나풀밭쥐

       

커서풀밭쥐

         

후닌풀밭쥐

     

코포드풀밭쥐

   

스모키풀밭쥐

           

알티플라노풀밭쥐

     

푸노풀밭쥐

   

단색풀밭쥐

           

숲풀밭쥐

   

폴롭풀밭쥐

       

볼리비아풀밭쥐

   

스페가찌니풀밭쥐

                   

각주

  1. “Akodon cursor”. 《멸종 위기 종의 IUCN 적색 목록. 2008판》 (영어). 국제 자연 보전 연맹. 2008. 2009년 2월 9일에 확인함.
  2. Musser, G.G.; Carleton, M.D. (2005). 〈Superfamily Muroidea〉 [쥐상과]. Wilson, D.E.; Reeder, D.M. 《Mammal Species of the World: A Taxonomic and Geographic Reference》 (영어) 3판. 존스 홉킨스 대학교 출판사. 1094쪽. ISBN 978-0-8018-8221-0. OCLC 62265494.
  3. Geise, L. (2012). “Akodon cursor (Rodentia: Cricetidae)”. 《Mammalian Species》 44 (1): 33–43. doi:10.1644/893.1.
  4. Geise, L.; 외. (2004). “Presence or absence of gall bladder in some Akodontini rodents (Muridae, Sigmodontinae)”. 《Mammalian Biology》 69 (3): 210–214. doi:10.1078/1616-5047-00136.
  5. Yazbeck, G.M.; 외. (2011). “Detection of two morphologically cryptic species from the cursor complex (Akodon spp; Rodentia, Cricetidae) through the use of RAPD markers”. 《Genetics and Molecular Research》 10 (4): 2881–2892. doi:10.4238/2011.November.22.2.
  6. Fagundes, V.; Nogueira, C.D.A (2007). “The use of PCR-RFLP as an identification tool for three closely related species of rodents of the genus Akodon (Sigmodontinae, Akodontini)”. 《Genetics and Molecular Biology》 30 (3): 698–701. doi:10.1590/S1415-47572007000400031.
  7. Pardiñas, U.F.J.; 외. (2003). “The genus Akodon (Muroidea: Sigmodontinae) in Misiones, Argentina”. 《Mammalian Biology》 68 (3): 129–143. doi:10.1078/1616-5047-00075.
  8. Carvalho, F.M.V.; 외. (1999). “Diet of small mammals in the Atlantic Forest fragments in southeastern Brazil”. 《Revista Brasileira de Zoociências》 1 (1): 91–101.[깨진 링크(과거 내용 찾기)]
  9. Gentile R.; Fernandez, F.A.S. (1999). “Influence of habitat structure on a streamside small mammal community in a Brazilian rural area”. 《Mammalia》 63 (1): 29–40. doi:10.1515/mamm.1999.63.1.29.
  10. Pardini, R. (2004). “Effects of forest fragmentation on small mammals in an Atlantic Forest landscape”. 《Biodiversity and Conservation》 13 (13): 2567–2586. doi:10.1023/B:BIOC.0000048452.18878.2d.
  11. Gentile, R.; 외. (1997). “Home range of Philander frenata and Akodon cursor in a Brazilian Restinga (coastal shrubland)”. 《Mastozoologia Neotropical》 4 (2): 105–112.
  12. Feliciano, B.R.; 외. (2002). “Population dynamics of small rodents in a grassland among fragments of Atlantic Forest in southern Brazil”. 《Mammalian Biology》 67 (5): 304–314. doi:10.1078/1616-5047-00045.
  13. Aulchenko, Y.S. (2002). “Inheritance of litter size at birth in the Brazilian grass mouse (Akodon cursor, Sigmodontinae, Rodentia)”. 《Genetics Research》 80 (1): 55–62. doi:10.1017/S0016672302005839.
  14. Lemos; 외. (2004). “Evidence of hantavirus infection in wild rodents captured in a rural area of the state of São Paulo, Brazil”. 《Pesquisa Veterinária Brasileira》 24 (2): 71–73. doi:10.1590/S0100-736X2004000200004.
  15. Bonvicino, C.R.; 외. (2001). “Induction and characterization of hypoxanthine-phosphoribosyltransferase (Hprt−) deficient cell lines of Akodon cursor (Rodentia, Sigmodontinae)”. 《Cytogenetics and Cell Genetics》 92 (1-2): 153–156. doi:10.1159/000056888.
  16. Jayat, J.P., Ortiz, P.E., Salazar-Bravo, J., Pardiñas, U.F.J. & D'Elía, G. 2010. The Akodon boliviensis species group (Rodentia: Cricetidae: Sigmodontinae) in Argentina: species limits and distribution, with the description of a new entity. Zootaxa 2409: 1–61.
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