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The California mouse is semi[[arboreal]], but tends to nest on the ground, under debris such as fallen logs, and they will also move into ''[[Dusky-footed woodrat|Neotoma fuscipes]]'' nests as seasonal residents.<ref>{{Cite journal|last=M'Closkey|first=Robert T.|date=1976-07-01|title=Community Structure in Sympatric Rodents|url=http://onlinelibrary.wiley.com/doi/10.2307/1936186/abstract|journal=Ecology|language=en|volume=57|issue=4|pages=728–739|doi=10.2307/1936186|issn=1939-9170}}</ref> Nests are insulated with coarse, dry grasses, weeds, and sticks, and fine grass is used as bedding in the center chamber.<ref name=r5/><ref name="McCabe"/> ''P. californicus'' is more strongly territorial than [[Peromyscus maniculatus|''P. maniculatus'']], with both sexes defending the nest site. Males are also aggressive toward one another; their fighting techniques involve jumping, avoidance, and a characteristic mewing cry.<ref name=r6/> This male aggression often is a trade-off between parental care, for males that spend more time engaging in territorial aggression consequently spend less time providing food for offspring.<ref>{{Cite journal|last=Trainor|first=Brian C.|last2=Marler|first2=Catherine A.|title=Testosterone, Paternal Behavior, and Aggression in the Monogamous California Mouse (Peromyscus californicus)|url=http://linkinghub.elsevier.com/retrieve/pii/S0018506X01916526|journal=Hormones and Behavior|volume=40|issue=1|pages=32–42|doi=10.1006/hbeh.2001.1652}}</ref>
The California mouse is semi[[arboreal]], but tends to nest on the ground, under debris such as fallen logs, and they will also move into ''[[Dusky-footed woodrat|Neotoma fuscipes]]'' nests as seasonal residents.<ref>{{Cite journal|last=M'Closkey|first=Robert T.|date=1976-07-01|title=Community Structure in Sympatric Rodents|url=http://onlinelibrary.wiley.com/doi/10.2307/1936186/abstract|journal=Ecology|language=en|volume=57|issue=4|pages=728–739|doi=10.2307/1936186|issn=1939-9170}}</ref> Nests are insulated with coarse, dry grasses, weeds, and sticks, and fine grass is used as bedding in the center chamber.<ref name=r5/><ref name="McCabe"/> ''P. californicus'' is more strongly territorial than [[Peromyscus maniculatus|''P. maniculatus'']], with both sexes defending the nest site. Males are also aggressive toward one another; their fighting techniques involve jumping, avoidance, and a characteristic mewing cry.<ref name=r6/> This male aggression often is a trade-off between parental care, for males that spend more time engaging in territorial aggression consequently spend less time providing food for offspring.<ref>{{Cite journal|last=Trainor|first=Brian C.|last2=Marler|first2=Catherine A.|title=Testosterone, Paternal Behavior, and Aggression in the Monogamous California Mouse (Peromyscus californicus)|url=http://linkinghub.elsevier.com/retrieve/pii/S0018506X01916526|journal=Hormones and Behavior|volume=40|issue=1|pages=32–42|doi=10.1006/hbeh.2001.1652}}</ref>


The California mouse forms pair bonds and the males help raise the young.<ref name="CANTONI 377–386"/><ref name="McCabe"/><ref name=r7/><ref name=r8/> A litter usually consists of only two pups, but a pair may produce as many as six litters in a year. Gestation ranges from 21 to 25 days. Weaning occurs when the offspring are five to six weeks of age.<ref name="McCabe"/><ref name="Svihla"/>
The California mouse forms pair bonds and the males help raise the young.<ref name="CANTONI 377–386"/><ref name="McCabe"/><ref name=r7/><ref name=r8/> A litter usually consists of only two pups, but a pair may produce as many as six litters in a year. Gestation ranges from 21 to 25 days. Weaning occurs when the offspring are five to six weeks of age.<ref name="McCabe"/><ref name="Svihla"/>

This mouse communicates with other members of its species via [[Ultrasound#Animals|ultrasound]]. The manner in which a male and female communicate changes from a more aggressive style to a more affiliative style during the development of a pair bond, and the characteristics of their vocalizations can be used to predict the stability of the pair bond.<ref name="Pultorak2018">{{cite journal|last1= Pultorak|first1=J. D.|last2= Alger|first2=S. J.|last3= Loria|first3=S. O.|last4= Johnson|first4=A. M.|last5= Marler|first5=C. A.|title= Changes in Behavior and Ultrasonic Vocalizations During Pair Bonding and in Response to an Infidelity Challenge in Monogamous California Mice|journal= Frontiers in Ecology and Evolution|volume= 6|year= 2018|doi= 10.3389/fevo.2018.00125}}</ref>


The mouse's diet consists of shrub fruits, seeds, and flowers, such as of ''[[Rhus integrifolia]], [[Lotus scoparius]]'', and ''[[Salvia apiana]]''.<ref name=r9/> They will also consume grasses, [[forbs]], [[fungi]], and [[arthropods]].<ref name=r10/>
The mouse's diet consists of shrub fruits, seeds, and flowers, such as of ''[[Rhus integrifolia]], [[Lotus scoparius]]'', and ''[[Salvia apiana]]''.<ref name=r9/> They will also consume grasses, [[forbs]], [[fungi]], and [[arthropods]].<ref name=r10/>

Revision as of 20:14, 5 October 2018

California mouse
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Rodentia
Family: Cricetidae
Subfamily: Neotominae
Genus: Peromyscus
Species:
P. californicus
Binomial name
Peromyscus californicus
(Gambel, 1848)

The California mouse (Peromyscus californicus) is a species of rodent in the subfamily Neotominae in the family Cricetidae. It is the only species in the Peromyscus californicus species group. It is found in northwestern Mexico and central to southern California. It is the largest Peromyscus species in the United States.[2][3]

While most rodents are polygamous, the California mouse is monogamous and forms pair bonds,[4] making it a model organism for researchers studying the genetics and neurobiology of partner fidelity[5] and paternal care.

Description

The California mouse has very large ears, and its tail is longer than the head and body combined. Including the tail, which is about 117 to 156 mm long, the mouse ranges in length from 220 to 285 mm. The coat is overall brown, mixed with black hairs. This dorsal colour shades to a creamy-white belly colour. The manus and feet are white.[2][6][7] Adults are large enough that they can be confused with juvenile Neotoma fuscipes, a close relative in the subfamily Neotominae. The dental formula for this species is 1003/1003.[8]

Natural history

The California mouse is semiarboreal, but tends to nest on the ground, under debris such as fallen logs, and they will also move into Neotoma fuscipes nests as seasonal residents.[9] Nests are insulated with coarse, dry grasses, weeds, and sticks, and fine grass is used as bedding in the center chamber.[10][11] P. californicus is more strongly territorial than P. maniculatus, with both sexes defending the nest site. Males are also aggressive toward one another; their fighting techniques involve jumping, avoidance, and a characteristic mewing cry.[12] This male aggression often is a trade-off between parental care, for males that spend more time engaging in territorial aggression consequently spend less time providing food for offspring.[13]

The California mouse forms pair bonds and the males help raise the young.[4][11][14][15] A litter usually consists of only two pups, but a pair may produce as many as six litters in a year. Gestation ranges from 21 to 25 days. Weaning occurs when the offspring are five to six weeks of age.[11][16]

This mouse communicates with other members of its species via ultrasound. The manner in which a male and female communicate changes from a more aggressive style to a more affiliative style during the development of a pair bond, and the characteristics of their vocalizations can be used to predict the stability of the pair bond.[17]

The mouse's diet consists of shrub fruits, seeds, and flowers, such as of Rhus integrifolia, Lotus scoparius, and Salvia apiana.[18] They will also consume grasses, forbs, fungi, and arthropods.[19]

California mice are mostly active at night.[20] Their main predators are weasels and barn owls.[21][22]

References

  1. ^ Template:IUCN2008 Database entry includes a brief justification of why this species is of least concern.
  2. ^ a b Grinnell, J; Orr, RT 1934 (1934). "Systematic review of the californicus group of the rodent genus Peromyscus". Journal of Mammalogy. 15 (3): 210–220. doi:10.2307/1373853. {{cite journal}}: Unknown parameter |last-author-amp= ignored (|name-list-style= suggested) (help)CS1 maint: numeric names: authors list (link)
  3. ^ Musser, G. G. and M. D. Carleton. (2005). Superfamily Muroidea. pp. 894–1531 in Mammal Species of the World a Taxonomic and Geographic Reference. D. E. Wilson and D. M. Reeder eds. Johns Hopkins University Press, Baltimore.
  4. ^ a b CANTONI, DEBORA; BROWN, RICHARD E. "Paternal investment and reproductive success in the California mouse,Peromyscus californicus". Animal Behaviour. 54 (2): 377–386. doi:10.1006/anbe.1996.0583.
  5. ^ Crossland, J.; Lewandowski, A. (2006). "Peromyscus – A fascinating laboratory animal model" (PDF). Techtalk. 11: 1–2.
  6. ^ Osgood, WH (1908). "Revision of the mice of the American genus Peromyscus". North Am. Fauna. 28: 1–285. doi:10.3996/nafa.28.0001.
  7. ^ Allen, JA (1896). "On mammals from the Santa Cruz Mountains, California". Bull. Am. Mus. Nat. Hist. 8: 263–270. hdl:2246/752.
  8. ^ Merritt, Joseph F. (1978-01-06). "Peromyscus californicus". Mammalian Species (85): 1–6. doi:10.2307/3503909. ISSN 0076-3519.
  9. ^ M'Closkey, Robert T. (1976-07-01). "Community Structure in Sympatric Rodents". Ecology. 57 (4): 728–739. doi:10.2307/1936186. ISSN 1939-9170.
  10. ^ Clark, FH (1936). "Geotropic behavior on a sloping plane of arboreal and non-arboreal races of mice of the genus Peromyscus". Journal of Mammalogy. 17: 44–47. doi:10.2307/1374549.
  11. ^ a b c McCabe, TT and BD Blanchard. 1950. Three Species of Peromyscus. Rood Associates, Santa Barbara, California.
  12. ^ Eisenberg, JF (1963). "The intraspecific social behavior of some Cricetine rodents of the genus Peromyscus". American Midland Naturalist. 69: 240–246. doi:10.2307/2422858.
  13. ^ Trainor, Brian C.; Marler, Catherine A. "Testosterone, Paternal Behavior, and Aggression in the Monogamous California Mouse (Peromyscus californicus)". Hormones and Behavior. 40 (1): 32–42. doi:10.1006/hbeh.2001.1652.
  14. ^ Dudley, D. 1973. [ Paternal behavior in the California mouse] (P. californicus) (Thesis) University of California.
  15. ^ Eisenberg, JF (1962). "Studies on the behavior of Peromyscus maniculatus gambelii and Peromyscus californicus parasiticus". Behavior. 19 (3): 177–207. doi:10.1163/156853962X00014.
  16. ^ Svihla, A (1932). "A comparative life history study of the mice of the genus Peromyscus" (PDF). Misc. Publ. Mus. Zool. Univ. Michigan. 24: 1–39.
  17. ^ Pultorak, J. D.; Alger, S. J.; Loria, S. O.; Johnson, A. M.; Marler, C. A. (2018). "Changes in Behavior and Ultrasonic Vocalizations During Pair Bonding and in Response to an Infidelity Challenge in Monogamous California Mice". Frontiers in Ecology and Evolution. 6. doi:10.3389/fevo.2018.00125.{{cite journal}}: CS1 maint: unflagged free DOI (link)
  18. ^ Meserve, PL (1972) Resource and habitat utilization by rodents of the coastal sage scrub community (Thesis) University of California, Irvine.
  19. ^ Merritt, JF (1974). "Factors influencing the local distribution of Peromyscus californicus in northern California". Journal of Mammalogy. 55: 102–114. doi:10.2307/1379260.
  20. ^ Marten, GG (1973). "Time patterns of Peromyscus activity and their correlations with weather". Journal of Mammalogy. 54: 169–188. doi:10.2307/1378878.
  21. ^ Vestal, EH (1937). "Activities of a weasel at a woodrat colony". Journal of Mammalogy. 18: 364. doi:10.1093/jmammal/18.3.364.
  22. ^ Von Bloeker, JC (1937). "Mammal remains from detritus of raptorial birds in California". Journal of Mammalogy. 18: 360–361. doi:10.1093/jmammal/18.3.360.
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