Mephitis mephitis

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Taxonomy [top]

Kingdom Phylum Class Order Family
ANIMALIA CHORDATA MAMMALIA CARNIVORA MEPHITIDAE

Scientific Name: Mephitis mephitis
Species Authority: (Schreber, 1776)
Common Name(s):
English Striped Skunk

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2008
Date Assessed: 2008-06-30
Assessor(s): Reid, F. & Helgen, K.
Reviewer(s): Duckworth, J.W. (Small Carnivore Red List Authority) & Schipper, J. (Global Mammal Assessment Team)
Justification:
This species is listed as Least Concern as they are widely distributed in a variety of habitats including human altered habitats and have increased in abundance in many regions during recent years (Andren 1995, Kuehl and Clark 2002).

Geographic Range [top]

Range Description:The species occurs throughout most of southern Canada from British Columbia, Hudson Bay, and Nova Scotia, throughout the United States and into northern Mexico (Walker, 1964; Godin, 1982; Honacki et al., 1982).
Countries:
Native:
Canada; Mexico; United States
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population: Density estimates for striped skunk populations ranged from 0.7 to 18.5/km2 but most were 1.8 to 4.8/km2 (Allen and Shapton, 1942; Bailey, 1971; Bennitt and Nagel, 1937; Burt, 1946; Jones, 1939; Stout and Sonenshine, 1974; Verts, 1967). Density levels reported fluctuated widely between years, possibly in response to outbreaks of diseases (Allen and Shapton, 1942; Brown and Yeager, 1943; Verts, 1967). Skunk populations seemingly have high recruitment and turnover rates because 50 to 71% of striped skunks do not attain an age of 1 year (Bailey, 1971; Casey and Webster, 1975; Verts, 1967). Due to removal of top predators (Crooks and Soulé, 1999; Rogers and Caro, 1998; Soulé et al., 1988), altered land use (Dijak and Thompson, 2000; Donovan et al. 1997; Oehler and Litvaitis, 1996), reduced harvest of skunks (Hamilton and Vangilder, 1992), and perhaps other factors, populations of M. mephitis, have increased in abundance in many regions during recent years (Andren, 1995; Kuehl and Clark, 2002).
Population Trend: Stable

Habitat and Ecology [top]

Habitat and Ecology: There is no single well-defined land type that can be classed as skunk range. They live in a variety of habitats: woods, plains, and desert areas but prefer open or forest-edge zones (Walker, 1964). Striped skunks are most abundant on agricultural lands where there is an ample supply of food and cover (Hamilton and Whitaker, 1979). They also adapt to life in urban areas under houses and garages (Rue, 1981; Rosatte, 1986; Larivière et al., 1999). They have been known to inhabit poorly drained marsh areas (Mutch, 1977). Although recorded from 4,200 m skunks usually are found from sea level to 1,800 m (Rue, 1981). Frequently found in suburban areas. Striped skunks are opportunistic omnivorous predatory feeders (Carr, 1974). Their diet varies depending on season and geographic location. In most areas, they feed extensively on insects (usually grasshoppers and beetles) associated with grassland areas (as opposed to forests). However, when insects are not available (early spring, late fall), their diet shifts to small mammals, birds, or vegetation (Verts, 1967).
Systems: Terrestrial

Threats [top]

Major Threat(s): Striped skunks (Mephitis mephitis) are vulnerable to a variety of mortality agents such as predation, disease, environmental conditions (e.g., severe winter or drought), chemicals, and anthropogenic activities (Gehrt, 2005; Hansen et al., 2004; Rosatte and Larivière, 2003). Another limiting factor in skunk populations are diseases such as rabies and the resultant control programs (Sikes, 1970). Terrestrial rabies apparently was the case for skunks in Illinois, where population fluctuations are closely tied to rabies outbreaks (Verts, 1967). Striped skunk pelts were considered valuable commodities in the fur trade in the first half of the 20th century, but their value and the number of skunks harvested for fur declined dramatically in the 1950's and 1960's as fashions shifted away from long-haired furs (Verts, 1967). Striped skunks may be harvested in most areas of the United States and Canada. In some states, such as Florida, skunks may be taken only in season, but most states allow harvests year-round (Rosatte, 1987).

Conservation Actions [top]

Conservation Actions: Given the ecological and economic importance of this species, there is a need to better understand microhabitat factors that are associated with occurrence of the taxon (Baldwin et al., 2004).

Bibliography [top]

Allen, D. L. and Shapton, W. W. 1942. An ecological study of winter dens, with special reference to the eastern skunk. Ecology 23: 59–68.

Andren, H. 1995. Effects of landscape composition on predation rates at habitat edges. In: L. Hansson, L. Farig and G. Merriam (eds), Mosaic landscapes and ecological processes, Chapman & Hall, London, UK.

Bailey, T. N. 1971. Biology of striped skunks on a southwestern Lake Erie marsh. The American Midland Naturalist 85: 196–207.

Baldwin, R. A., Kennedy, M. L., Houston, A. E. and Liu, P. S. 2004. An assessment of microhabitat variables and capture success of striped skunks (Mephitis mephitis). Journal of Mammalogy 85: 1068-1076.

Bennitt, R. and Nagel, W. O. 1937. A survey of the resident game and furbearers of Missouri. University of Missouri Studies 12: 1-215.

Brown, L. G. and Yeager, L. E. 1943. Survey of the Illinois fur resource. Bulletin Illinois Natural History Survey 22: 435-504.

Burt, W. H. 1946. The mammals of Michigan. The University of Michigan Press, Ann Arbor, MI, USA.

Carr, D. E. 1974. Predatory behavior in the striped skunk (Mephitis mephitis). Cornell University.

Casey, G. A. and Webster, W. A. 1975. Age and sex determination of striped skunks (Mephitis mephitis) from Ontario, Manitoba, and Quebec. Canadian Journal of Zoology 53: 223-231.

Crooks, K. R. and Soulé, M. E. 1999. Mesopredator release and avifaunal extinctions in a fragmented system. Nature 400: 563–566.

Dijak, W. D. and Thompson, F. R. 2000. Landscape and edge effects on the distribution of mammalian predators in Missouri. Journal of Wildlife Management 64: 209-216.

Donovan, T. M., Jones, P. W., Annand, E. M. and Thompson, F. R. 1997. Variation in local-scale edge effects: mechanisms and landscape context. Ecology 78: 2064–2075.

Dragoo, J. W. and Honeycutt, L. 1997. Systematics of Mustelid-like carnivores. Journal of Mammalogy 78: 426-443.

Gehrt, S. D. 2005. Seasonal survival and cause-specific mortality of urban and rural striped skunks in the absence of rabies. Journal of Mammalogy 86: 1164-1170.

Godin, A. J. 1982. Striped and hooded skunks. In: J. A. Chapman and G. A. Feldhamer (eds), Wild mammals of North America: biology, management, and economics, pp. 674–687. Johns Hopkins University Press, Baltimore, Maryland, USA.

Hamilton, D. A. and Vangilder, L. D. 1992. Furbearer populations, animal rights and wild turkey production; a special report. Missouri Department of Conservation, Columbia, Missouri, USA.

Hamilton Jr., W. J. and Whitaker Jr., J. O. 1979. Mammals of the Eastern United States. Cornell University Press, Ithaca, New York, USA.

Hansen, L. A., Mathews, N. E., Vander Lee, B. A. and Scott Lutz, R. 2004. Population characteristics, survival rates, and causes of mortality of striped skunks (Mephitis mephitis) on the southern high plains, Texas. Southwestern Naturalist 49(1): 54-60.

Honacki, J. H., Kinman, K. E. and Koeppl, J. W. 1982. Mammal species of the world: A taxonomic and geographic reference. Allen Press.

Jones Jr., H. W. 1939. Winter studies of skunks in Pennsylvania. Journal of Mammalogy 20: 254-256.

Kuehl, A. K. and Clark, W. R. 2002. Predator activity related to landscape features in northern Iowa. Journal of Wildlife Management 66: 1224-1234.

Larivière, S., Walton, R. L. R. and Messier, F. 1999. Selection by Striped Skunks (Mephitis mephitis) of Farmsteads and Buildings as Denning Sites. The American Midland Naturalist 142: 96–101.

Mutch, G. R. P. 1977. Locations of winter dens utilized by striped skunks in Delta Marsh, Manitoba. Canadian Field-Naturalist 91: 289–29.

Oehler, J. D. and Litvaitis, J. A. 1996. The role of spatial scale in understanding responses of medium-sized carnivores to forest fragmentation. Canadian Journal of Zoology 74: 2070-2079.

Rogers, C. M. and Caro, M. J. 1998. Song sparrows, top carnivores and nest predation: A test of the mesopredator release hypothesis. Oecologia 116: 227-233.

Rosatte, R. C. 1986. A strategy for urban rabies control: social change implications. Walden University.

Rosatte, R. C. 1987. Striped, Spotted, Hooded, and Hog-nosed Skunk. In: M. Novak, J. A. Baker, M. E. Obbard and B. Malloch (eds), Wild furbearer management and conservation in North America, pp. 1150 pp.. Ontario Ministry of Natural Resources and the Ontario Trappers Association, Ontario, Canada, Toronto, Ontario, Canada.

Rosatte, R. C. and Larivière, S. 2003. Skunks. In: G. Feldhamer, B. C. Thompson and J. Chapman (eds), Wild mammals of North America, 2nd edition, Johns Hopkins University Press, Baltimore, Maryland, USA.

Rue, L. L. 1981. Furbearing animals of North America. Crown Publications, New York, USA.

Sikes, R. K. 1970. Rabies. In: J. W. Davis, L. H. Karstad and D. O. Trainer (eds), Infectious diseases of wild animals, Iowa State University Press, Iowa, USA.

Soulé, M. E., Bolger, D. T., Alberts, A. C., Wright, J., Morice, M. and Hill, S. 1988. Reconstructed dynamics of rapid extinctions of chaparral-requiring birds in urban habitat islands. Conservation Biology 2: 75–92.

Stout, I. J. and Sonenshine, D. E. 1974. A striped skunk population in Virginia. Chesapeake Science 15: 140-145.

Verts, B. J. 1967. The biology of the striped skunk. University of Iilinois Press, Urbana, USA.

Walker, E. P. 1964. Mammals of the World. Johns Hopkins University Press, Baltimore, MD, USA.

Wozencraft, W.C. 2005. Order Carnivora. In: D.E. Wilson and D.M. Reeder (eds), Mammal Species of the World: A taxonomic and geographic reference. Third Edition, pp. 532-628. Smithsonian Institution Press, Washington, DC, USA.


Citation: Reid, F. & Helgen, K. 2008. Mephitis mephitis. In: The IUCN Red List of Threatened Species. Version 2014.3. <www.iucnredlist.org>. Downloaded on 24 November 2014.
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