Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Datasheet

Vulpes vulpes
(red fox)

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Datasheet

Vulpes vulpes (red fox)

Summary

  • Last modified
  • 20 November 2018
  • Datasheet Type(s)
  • Invasive Species
  • Natural Enemy
  • Host Animal
  • Preferred Scientific Name
  • Vulpes vulpes
  • Preferred Common Name
  • red fox
  • Taxonomic Tree
  • Domain: Eukaryota
  •   Kingdom: Metazoa
  •     Phylum: Chordata
  •       Subphylum: Vertebrata
  •         Class: Mammalia
  • Summary of Invasiveness
  • Native to Europe, Asia, North Africa and boreal regions of North America, Vulpes vulpes (the red fox) have been introduced into Australia and temperate regions of North America. They are now the most widely distr...

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Pictures

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PictureTitleCaptionCopyright
Vulpes vulpes, the Red Fox; adult, USA
TitleAdult
CaptionVulpes vulpes, the Red Fox; adult, USA
CopyrightRonald Laubenstein/US Fish and Wildlife Service/Bugwood.org
Vulpes vulpes, the Red Fox; adult, USA
AdultVulpes vulpes, the Red Fox; adult, USARonald Laubenstein/US Fish and Wildlife Service/Bugwood.org
Vulpes vulpes, the Red Fox; adult, USA
TitleAdult
CaptionVulpes vulpes, the Red Fox; adult, USA
CopyrightRonald Laubenstein/US Fish and Wildlife Service/Bugwood.org
Vulpes vulpes, the Red Fox; adult, USA
AdultVulpes vulpes, the Red Fox; adult, USARonald Laubenstein/US Fish and Wildlife Service/Bugwood.org
Vulpes vulpes, the Red Fox; adult, USA.
TitleAdult
CaptionVulpes vulpes, the Red Fox; adult, USA.
CopyrightJoseph Berger/Bugwood.org
Vulpes vulpes, the Red Fox; adult, USA.
AdultVulpes vulpes, the Red Fox; adult, USA. Joseph Berger/Bugwood.org

Identity

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Preferred Scientific Name

  • Vulpes vulpes (Linnaeus, 1758)

Preferred Common Name

  • red fox

Other Scientific Names

  • Canis vulpes (Linnaeus, 1758)

International Common Names

  • English: fox; silver fox; silver, black or cross fox
  • Spanish: zorro
  • French: renard

Local Common Names

  • Denmark: raev
  • Germany: Fuchs; Rotfuchs
  • Iran: rubah
  • Italy: volpe
  • Lithuania: lape
  • Netherlands: vos
  • Poland: lis
  • Portugal: raposa

EPPO code

  • VULPVU (Vulpes vulpes)

Summary of Invasiveness

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Native to Europe, Asia, North Africa and boreal regions of North America, Vulpes vulpes (the red fox) have been introduced into Australia and temperate regions of North America. They are now the most widely distributed carnivore in the world and have negative impacts on many native species, including smaller canids and ground nesting birds in North America, and many small and medium-sized rodent and marsupial species in Australia. This species has been nominated as among 100 of the "World's Worst" invaders.

Taxonomic Tree

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  • Domain: Eukaryota
  •     Kingdom: Metazoa
  •         Phylum: Chordata
  •             Subphylum: Vertebrata
  •                 Class: Mammalia
  •                     Order: Carnivora
  •                         Suborder: Fissipeda
  •                             Family: Canidae
  •                                 Genus: Vulpes
  •                                     Species: Vulpes vulpes

Description

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The red fox is a member of the family Canidae which includes wolves, jackals and coyotes. Males are slightly larger than females. Both males and females, but particularly females, have seasonal variations in body weight. Geographic and subspecies variations in size also occur. Adults have a head and body length of 570 to 740 mm, a tail length of 360 to 450 mm and weigh between 4.5 to 8.3 kilograms (Coman 1983, in Saunders et al. 1995). In general, throat and abdomen are white, lower legs and ears are black and a bushy tail is tipped in white. Three colour morphs of V. vulpes are recognised: red, silver/black and cross. A pale-yellowish colour morph is common on the Arabian peninsula and within native subspecies in North America.

Distribution

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Native range: V. vulpes occurs in Europe, North Africa, most of Asia (excluding extreme Southeast Asia and southern India) and boreal regions of North America. It occurs naturally only in the northern hemisphere and is found throughout most of the Palaearctic region (Saunders et al. 1995).
Known introduced range: Australia, Canada, USA and northern Mexico. Red foxes introduced into Australia in the 1850s have spread throughout the entire continent, except perhaps the north-central region. They have recently been introduced to Tasmania. Red foxes introduced into the eastern USA, starting in the mid-1700s, have spread throughout all lowland areas of the eastern and central USA and all of Canada. Red foxes transplanted from the eastern USA into California in the late 1800s have since spread throughout lowland areas of the western coast states, southwards into northern Mexico. Introduced red foxes may continue to spread southward into other areas of the New World and are now the most widely distributed carnivore in the world.

Distribution Table

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The distribution in this summary table is based on all the information available. When several references are cited, they may give conflicting information on the status. Further details may be available for individual references in the Distribution Table Details section which can be selected by going to Generate Report.

Continent/Country/RegionDistributionLast ReportedOriginFirst ReportedInvasiveReferenceNotes

Asia

IranPresentCAB ABSTRACTS Data Mining 2001
IsraelPresentCAB ABSTRACTS Data Mining 2001
JapanPresentCAB ABSTRACTS Data Mining 2001

North America

CanadaPresentIntroduced1800s Invasive ISSG, 2011
-AlbertaPresentIntroducedmid-1900s Invasive ISSG, 2011
-British ColumbiaPresentIntroducedmid-1900s Invasive ISSG, 2011
-ManitobaPresentIntroducedmid-1900s Invasive ISSG, 2011
-New BrunswickPresentIntroduced1800s Invasive ISSG, 2011
-Newfoundland and LabradorPresentIntroducedmid-1900s Invasive ISSG, 2011
-Northwest TerritoriesPresentIntroducedmid-1900s Invasive ISSG, 2011
-Nova ScotiaPresentIntroduced1800s Invasive ISSG, 2011
-OntarioPresentIntroduced1800s Invasive ISSG, 2011
-Prince Edward IslandPresentIntroduced1800s Invasive ISSG, 2011
-QuebecPresentIntroduced1800s Invasive ISSG, 2011
-SaskatchewanPresentIntroducedmid-1900s Invasive ISSG, 2011
-Yukon TerritoryPresentIntroducedmid-1900s Invasive ISSG, 2011
MexicoPresentIntroducedlate 1900s Invasive ISSG, 2011
USAPresentCAB ABSTRACTS Data Mining 2001
-AlaskaPresentIntroduced1741 Invasive ISSG, 2011
-ArizonaPresentIntroduced1990s Invasive ISSG, 2011
-ArkansasPresentIntroduced<1900 Invasive ISSG, 2011
-CaliforniaPresentIntroducedearly 1900s Invasive ISSG, 2011
-ColoradoPresentIntroduced1960s Invasive ISSG, 2011
-ConnecticutPresentIntroduced1800s Invasive ISSG, 2011
-DelawarePresentIntroduced1700-1800s Invasive ISSG, 2011
-District of ColumbiaPresentIntroduced1700-1800s Invasive ISSG, 2011
-FloridaPresentIntroduced1800s Invasive ISSG, 2011
-GeorgiaPresentIntroduced1800s Invasive ISSG, 2011
-IdahoPresentIntroduced1960s Invasive ISSG, 2011
-IllinoisPresentIntroduced1800s Invasive ISSG, 2011
-IndianaPresentIntroduced1800s Invasive ISSG, 2011
-IowaPresentIntroduced1800s Invasive ISSG, 2011
-KansasPresentIntroducedearly 1900s Invasive ISSG, 2011
-KentuckyPresentIntroduced1800s Invasive ISSG, 2011
-LouisianaPresentIntroduced1800s Invasive ISSG, 2011
-MainePresentIntroduced1800s Invasive ISSG, 2011
-MarylandPresentIntroduced1700-1800 Invasive ISSG, 2011
-MassachusettsPresentIntroduced1800s Invasive ISSG, 2011
-MichiganPresentIntroduced1800s Invasive ISSG, 2011
-MinnesotaPresentIntroduced1800s Invasive ISSG, 2011
-MississippiPresentIntroduced1800s Invasive ISSG, 2011
-MissouriPresentIntroduced1800s Invasive ISSG, 2011
-MontanaPresentIntroduced1960s Invasive ISSG, 2011
-NebraskaPresentIntroducedearly 1900s Invasive ISSG, 2011
-NevadaPresentIntroduced1980s Invasive ISSG, 2011
-New HampshirePresentIntroduced1800s Invasive ISSG, 2011
-New JerseyPresentIntroduced1700-1800s Invasive ISSG, 2011
-New YorkPresentIntroduced1800s Invasive ISSG, 2011
-North CarolinaPresentIntroduced1700-1800s Invasive ISSG, 2011
-North DakotaPresentIntroduced1930s Invasive ISSG, 2011
-OhioPresentIntroduced1800s Invasive ISSG, 2011
-OklahomaPresentIntroducedearly 1900s Invasive ISSG, 2011
-OregonPresentIntroducedearly 1900s Invasive ISSG, 2011
-PennsylvaniaPresentIntroduced1700-1800s Invasive ISSG, 2011
-Rhode IslandPresentIntroduced1800s Invasive ISSG, 2011
-South CarolinaPresentIntroduced1700-1800s Invasive ISSG, 2011
-South DakotaPresentIntroduced1930s Invasive ISSG, 2011
-TennesseePresentIntroduced1800s Invasive ISSG, 2011
-TexasPresentIntroducedearly 1900s Invasive ISSG, 2011
-UtahPresentIntroduced1980s Invasive ISSG, 2011
-VermontPresentIntroduced1800s Invasive ISSG, 2011
-VirginiaPresentIntroduced1700-1800s Invasive ISSG, 2011
-WashingtonPresentIntroducedearly 1900s Invasive ISSG, 2011
-West VirginiaPresentIntroduced1700-1800s Invasive ISSG, 2011
-WisconsinPresentIntroduced1800s Invasive ISSG, 2011
-WyomingPresentIntroduced1960s Invasive ISSG, 2011

Europe

AustriaPresentCAB ABSTRACTS Data Mining 2001
Czech RepublicPresentCAB ABSTRACTS Data Mining 2001
DenmarkPresentCAB ABSTRACTS Data Mining 2001
FrancePresentCAB ABSTRACTS Data Mining 2001
GermanyPresent
GreecePresentCAB ABSTRACTS Data Mining 2001
HungaryPresentCAB ABSTRACTS Data Mining 2001
Isle of Man (UK)PresentIntroducedBelieved to be 1986 Invasive ISSG, 2011
ItalyPresent
LiechtensteinPresentCAB ABSTRACTS Data Mining 2001
PolandPresentCAB ABSTRACTS Data Mining 2001
ScandinaviaPresentCAB ABSTRACTS Data Mining 2001
SpainPresentCAB ABSTRACTS Data Mining 2001
SwitzerlandPresentCAB ABSTRACTS Data Mining 2001
UKPresentCAB ABSTRACTS Data Mining 2001

Oceania

AustraliaPresentIntroduced1871 Invasive ISSG, 2011
-Australian Northern TerritoryPresentIntroducedearly 1900s Invasive ISSG, 2011
-New South WalesPresentIntroduced1871 Invasive ISSG, 2011
-TasmaniaPresentIntroduced2000 Invasive ISSG, 2011
-VictoriaPresentIntroduced1870 Invasive ISSG, 2011
-Western AustraliaPresentIntroduced1910 Invasive ISSG, 2011

Habitat

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The worldwide distribution of the red fox, ranging from tundra to the desert as well as urban areas, suggests that it can survive in most sorts of environments (Saunders et al. 1995). The fox is probably most abundant in fragmented environments typically found in agricultural landscapes because these offer a wide variety of cover, food and den sites (Saunders et al. 1995). More uniform, open environments are less favoured as are heavily forested or mountainous areas. Foxes do not live entirely within closed canopy forests but can penetrate some distance into them in search of food (Jarman 1986, in Saunders et al. 1995). The red fox appears to be absent from areas with tropical climates, such as Asia, although the reasons for this are unclear. In Australia the fox can survive in habitats ranging from arid through to alpine as well as urban. The only limitations on distribution appear to be the presence of dingoes and the tropical climate of the northern parts of Australia (Saunders et al. 1995).

Habitat List

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CategoryHabitatPresenceStatus
Terrestrial-managed
Cultivated / agricultural land Present, no further details
Disturbed areas Present, no further details
Managed forests, plantations and orchards Present, no further details
Urban / peri-urban areas Present, no further details
Terrestrial-natural
semi-natural/Cold lands / tundra Present, no further details
semi-natural/Natural forests Present, no further details
semi-natural/Natural grasslands Present, no further details
semi-natural/Riverbanks Present, no further details

Species Vectored

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Biology and Ecology

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Nutrition
Foxes prey particularly on small to medium-sized, ground-dwelling and semi-arboreal mammals, ground-nesting birds and chelid tortoises (DEWHA 2008b). Terrestrial mammals in Australia at the greatest risk are those that weigh between 35 g and 5.5 kg (critical weight range species), including ground-nesting birds, many of which are endangered or vulnerable (DEWHA 2008a). Although predominantly carnivorous, the fox is an opportunistic predator and scavenger with no specialised food requirements (Saunders et al. 1995). Foxes are omnivorous, consuming fruit, vegetables, eggs and insects, especially when they are seasonally available. Diet studies conducted in Australia show rabbits, house mice and sheep taken as carrion to be the most common food items (Saunders et al. 1995).

    Reproduction
    Females reproduce only once a year. Gestation lasts 51 to 53 days with most cubs born during August and September. In Australia females are reproductively active from July to October with a peak during August in southeastern Australia (McIntosh 1963a, Ryan 1976a, in Saunders et al. 1995). In temperate regions breeding occurs from December to April (later in more northern latitudes). Mean litter size is four up to a maximum of about ten (Saunders et al. 1995). Both sexes become sexually mature from ten months of age (Saunders et al. 1995). Although social groups of one male and several vixens do exist, most foxes are thought to have only one mate; males may also leave their normal territory temporarily in search of other mating opportunities (Saunders et al. 1995).

      Lifecycle stages
      Parturition occurs after a gestation of 51 to 53 days. Lactation lasts for approximately five weeks and weaning occurs gradually. Females can breed before one year of age, however, in areas of high density most yearlings do not produce pups. V. vulpes can live up to 9 years in the wild, although few individuals live more than 6 years. In the northern hemisphere, dispersal usually occurs from September to January.

        Means of Movement and Dispersal

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        Introduction pathways to new locations
        Natural dispersal: Exceptional movements of over 300 kilometres have been recorded in North America and 100 kilometres in Europe (Corbet and Harris 1991, in Saunders et al. 1995). Mean dispersal distances are much smaller than this, ranging from 2.8 to 43.5 kilometres for males and 1.8 to 38.6 kilometres for females (Trewhella et al. 1988, in Saunders et al. 1995).
        Other: Introduced for sport hunting purposes in Australia and USA

        Local dispersal methods
        Natural dispersal (local): Males disperse further than females and dispersal distances are usually < 50km, with shorter dispersals < 10km) in urban fox populations.

          Pathway Causes

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          CauseNotesLong DistanceLocalReferences
          Hunting, angling, sport or racing Yes

          Impact Summary

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          CategoryImpact
          Livestock production Negative

          Impact

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          Reduction in native biodiversity: The damage to Australian wildlife since European settlement has been catastrophic (e.g. Salo et al. 2007). At least 20 species of Australian mammals have become extinct (Saunders et al. 1995). This represents about one half of the world’s mammal extinctions in the last 200 years; a further 43 species are judged to be either endangered or vulnerable (Commonwealth Endangered Species Advisory Committee Report 1992, in Saunders et al. 1995). The causes are complex and the impact of foxes on wildlife have probably been exacerbated by habitat modification and fragmentation (Saunders et al. 1995).

          In Austrialia the fox has eliminated remnant populations of some native rodent and marsupial species. The best known Australian example of impact on a native species as reported by Saunders and colleagues (1995) is that of the 'Near Threatened (NT)' black-footed rock-wallaby (Petrogale lateralis), living in small, relict colonies in the wheatbelt of Western Australia. Management of local fox populations using poisoned baits resulted in a substantial increase in wallaby numbers. Another threatening process which has recently come to light is the impact of predation by foxes on native marsupials and on the 'Vulnerable (VU)' malleefowl Leipoa ocellata) (Saunders et al. 1995). For more examples of Australian fox removal studies please see Saunders et al. 1995.

          In North America, introduced foxes have negative impacts on many ground-nesting birds, such as ducks and grouse. In California, European red foxes have to be controlled on an annual basis to protect the nesting grounds of several endangered species of birds. European red foxes also negatively impact smaller native canids, such as the endangered San Joaquin kit foxes and subspecies of native red foxes.

          Competition: The impact of competition by foxes appears to be secondary to that of predation. Morris (1992) suggests foxes may compete with the chuditch or western quoll (Dasyurus geoffroii) for food in jarrah forest in Western Australia. Foxes also prey on young chuditch.

          Agricultural: European red foxes are also a threat to livestock as they prey on poultry, lambs and kids.

          Disease Transmission: In its introduced range in Australia the fox carries no diseases of serious economic or public health significance, although recently foxes have been found to harbour the hydatid parasite (Saunders et al. 2007). Controversy still surrounds its possible role as a wild reservoir host for the rabies virus (Saunders et al. 2007). In many parts of the northern hemisphere, the fox is the main reservoir of this disease and, given the widespread distribution of foxes in Australia, the possibility of rabies developing as an established disease in fox populations cannot be dismissed (Saunders et al. 2007).

          Many other infectious diseases occur in foxes, although little is known of their incidence in Australia, or their impact on population regulation. These include mange, canine distemper, parvovirus, toxoplasmosis, canine hepatitis, tularaemia, leptospirosis, staphylococcal infections and encephalitis (Saunders et al. 1995). Like most carnivores that feed on a wide range of prey, foxes also carry a variety of endoparasites (Saunders et al. 1995). The incidence of helminth parasites, in foxes in particular, has been intensively surveyed in southeastern Australia because of their potential transmission to domestic animals (Saunders et al. 1995).

          Environmental Impact

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          There is a close relationship between fox and rabbit numbers (Saunders et al. 2007). When rabbit populations crash, due to drought, myxomatosis or Rabbit Calicivirus Disease (RCD), there will be a lag period until fox numbers decline and adjust to the reduced prey population. The likelihood of increased predation pressure on native wildlife over this period needs to be considered. Rabbit numbers may also be affected by foxes. Preliminary studies suggest that foxes and feral cats may slow the recovery of rabbit populations after they crash due to drought or disease. The potential role of foxes in rabbit control and the impact of foxes on native wildlife following crashes in rabbit populations needs to be clarified (Saunders et al. 2007).

          Threatened Species

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          Threatened SpeciesConservation StatusWhere ThreatenedMechanismReferencesNotes
          Leipoa ocellataVU (IUCN red list: Vulnerable) VU (IUCN red list: Vulnerable)AustraliaPredationISSG, 2011
          Petrogale lateralisNT (IUCN red list: Near threatened) NT (IUCN red list: Near threatened)AustraliaISSG, 2011
          Caretta caretta (loggerhead sea turtle)VU (IUCN red list: Vulnerable) VU (IUCN red list: Vulnerable); USA ESA listing as endangered species USA ESA listing as endangered speciesPredationUS Fish and Wildlife Service, 2011
          Perognathus longimembris pacificus (Pacific pocket mouse)USA ESA listing as endangered species USA ESA listing as endangered speciesCaliforniaPredationUS Fish and Wildlife Service, 2010a
          Peromyscus polionotus peninsularis (St. Andrew beach mouse)USA ESA listing as endangered species USA ESA listing as endangered speciesPredationUS Fish and Wildlife Service, 2009a
          Rallus longirostris levipes (light-footed clapper rail)EN (IUCN red list: Endangered) EN (IUCN red list: Endangered)CaliforniaPredationUS Fish and Wildlife Service, 2009b
          Reithrodontomys raviventris (salt-marsh harvest mouse)EN (IUCN red list: Endangered) EN (IUCN red list: Endangered); USA ESA listing as endangered species USA ESA listing as endangered speciesCaliforniaPredationUS Fish and Wildlife Service, 2010b
          Vulpes macrotis mutica (San Joaquin kit fox)USA ESA listing as endangered species USA ESA listing as endangered speciesCaliforniaCompetition (unspecified); PredationUS Fish and Wildlife Service, 2010c

          Risk and Impact Factors

          Top of page Impact outcomes
          • Negatively impacts agriculture
          • Reduced native biodiversity
          Impact mechanisms
          • Competition - monopolizing resources
          • Competition
          • Pest and disease transmission
          • Predation

          Uses

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          Wild-caught V. vulpes are used in sport hunting. Foxes are also raised in farms, where they generate millions of dollars a year worldwide; for example in the EU from 2001 to 2002 fur farms generated US $4 600 million (International Fur Trade Federation Undated). Most of the world’s farmed fur is produced in Europe, accounting for 63% of fox production (EU = 47%); Finland is the world’s largest producer and exporter of fox skin (International Fur Trade Federation Undated). Russia/the Baltic States and China account respectively for 11% and 27% of fox production (International Fur Trade Federation Undated).

          Uses List

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          General

          • Sport (hunting, shooting, fishing, racing)

          Materials

          • Skins/leather/fur

          Similarities to Other Species/Conditions

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          Native red foxes of North America are very often confused with the introduced red fox with European origin. Their taxonomy is still unresolved (see Notes in Ecology Section). Native red foxes are smaller, and most often exhibit black, cross, or yellowish color phases, whereas introduced red foxes are a cherry red color. Native red foxes are a cold-adapted subspecies, and only occur in the boreal forests of Canada and northern U.S.A., and in montane habitats at higher elevations in the Rocky Mountains of the western U.S.A. Introduced red foxes occur in all other habitats (and also in the boreal forests of Canada and northern U.S.A.).

            Prevention and Control

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            An analysis by Salo and colleagues (2007) has confirmed that introduced predators generally have detrimental impacts on populations of native species. Impacts on prey are much greater in Australia than in other parts of the world. Since the early days of European settlement in Australia, control of predators has been attempted using a variety of methods, including shooting, trapping, fencing and poisoning (Rolls 1969, in Glen et al. 2007). Control of urban foxes also presents a problem, as conventional lethal techniques (e.g., shooting, poisoning and trapping) cannot be used in built up areas. Efforts are now directed towards mitigating the impact of the fox using baits to deliver vaccines or poisons or to regulate fertility (Armstrong 2004; Marks et al. 1996; Vos 2003). The ongoing costs of fox control are high. To aerially bait approximately 35 000 square kilometers/year costs approximately $1.3 million (Saunders & McLeod 2007, in DEWHA 2008b). Exclusion fencing costs up to $10 000/km (DEWHA 2008b).

            Preventative Measures: Fox scats are surprisingly persistent in the field and sufficient DNA is contained within scats for 100% accuracy in species identification, even after three months of weathering. DNA-based species identification is robust, no matter what method is used to extract DNA (Berry et al. 2007). DNA extraction with the commercial kit was the most costly (about AU$6.0, Euro 3.6, US$4.4 per sample in consumables) and time-consuming aspect of scat processing (compared with less than AU$0.10 per sample for chelex). Use of a cheaper and more straightforward extraction protocol places fewer constraints on the number of scats that could be processed.

            Physical: Exclusion fencing is used to protect areas of high conservation value (Algar & Smith 1998, in Robley et al. 2007). It has proven to be a valuable tool in aiding the re-introduction of species to areas from which they have been previously eliminated by feral animals such as foxes (Robley et al. 2007). Results from fencing trials by Robley and colleagues (2007) indicate that fences should be 1.8 m high, have an overhang that is at least 600 mm in circumference that is curved or shaped in such a way that prevents animals climbing over from underneath, and have an apron with a mesh hard enough to prevent foxes chewing through. Electric fencing is not required.

            Chemical: In Australia the fox is most commonly managed by setting baits impregnated with 1080 (sodium fluoroacetate) poison (Gentle et al. 2007). Fox numbers are controlled by laying dried meat baits containing the poison 1080 (sodium monofluroacetate) at least four times per year. The poison is a naturally occuring substance found in native plants called gastrolobiums or 'poison peas'. While native animals have evolved with these plants and have a high tolerance to the poison, introduced animals do not. Baits consist either of fresh or dried meat, offal, chicken eggs or commercial mixtures (Saunders & McLeod 2007, in Glen et al. 2007). Baiting is the only method currently available for predator control that can be used successfully over broad areas (Gentle 2005, in Glen et al. 2007). However, the long-term effectiveness of such control campaigns is likely to be limited due to the ability of foxes to disperse over considerable distances and to swiftly recolonise areas (Gentle et al. 2007). In southeastern Australia, baiting for foxes by landholders is encouraged by state government agencies. However, for reasons including bait caching and bait degradation, current baiting practices may not always be efficient or effective (Gentle et al. 2007). Managers should adopt a approach which seeks to minimise potential risk to non-target individuals, while clarifying population-level effects through continued research (Glen et al. 2007).

            Fertility regulators include cabergoline, a dopamine agonist that has previously been demonstrated to have an abortifacient effect in cats (Felis catus) and dogs (Canis familiaris) (see Marks et al. 1996). Marks and colleagues (1996) report that the chemical is palatable to foxes and easily incorporated into a non-poisonous bait. The incidence of cubs was significantly lower in treatment dens than in the controls.

            Vos (2003) reports that as a result of oral vaccination of foxes rabies has almost been completely eradicated from Western and Central Europe.

            Bibliography

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            NSW National Parks and Wildlife Service (2001). Threat Abatement Plan for Predation by the Red Fox (Vulpes vulpes). NSW National Parks and Wildlife Service, Hurstville. http://www.nationalparks.nsw.gov.au/npws.nsf/Content/Foxes

            Pest Animal Control CRC., undated. European red fox Vulpes vulpes feral.com.au http://www.feral.org.au/content/species/fox.cfm

            Reynolds, J.C and Short, M., 2003. The status of foxes Vulpes vulpes on the Isle of Man in 1999. Mammal Review 33(1). 69-76

            Sillero-Zubiri, C., M. Hoffman, and D. W. Macdonald (eds.). 2004. Canids: foxes, wolves, jackals and dogs. Status survey and conservation action plan. IUCN/SSC Canid Specialist Group. Gland, Switzerland and Cambridge, UK. Sillero-Zubiri, C., M. Hoffman, and D. W. Macdonald (eds.). 2004. Canids: foxes, wolves, jackals and dogs. Status survey and conservation action plan. IUCN/SSC Canid Specialist Group. Gland, Switzerland and Cambridge, UK. http://www.canids.org/cap/COVER.pdf

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            Strahan, R. 1995. Mammals of Australia. Smithsonian Institution Press, Washington, D.C.

            Threat Abatement Plan for Predation by the European Red Fox., 1999. Department of Environment and Heritage, Australian Governement. http://www.environment.gov.au/biodiversity/threatened/publications/tap/foxes/index.html

            U.S. Fish & Wildlife Service, 1999. Threatened and Endangered Species: Aleutian Canada goose (Branta canadensis leucopareia) http://alaska.fws.gov/media/acg/fact.pdf

            Varnham, K. 2006. Non-native species in UK Overseas Territories: a review. JNCC Report 372. Peterborough: United Kingdom. http://www.jncc.gov.uk/page-3660

            Voigt, D. R. 1987. Red fox. Pages 379-392 in M. Novak, J. A. Baker, M. E. Obbard, and B. Mallock, editors. Wild furbearer management and conservation in North America. Ministry of Natural Resources, Ontario, Canada

            Western Shield, 2003.Department of Conservation and Land Management, Governement of Western Australia.

            Links to Websites

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            WebsiteURLComment
            GISD/IASPMR: Invasive Alien Species Pathway Management Resource and DAISIE European Invasive Alien Species Gatewayhttps://doi.org/10.5061/dryad.m93f6Data source for updated system data added to species habitat list.
            Global register of Introduced and Invasive species (GRIIS)http://griis.org/Data source for updated system data added to species habitat list.

            Contributors

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              Reviewed by: Jan F. Kamler, Wildlife Conservation Research Unit. Oxford University UK
              Compiled by: IUCN SSC Invasive Species Specialist Group Updates with support from the Overseas Territories Environmental Programme (OTEP) project XOT603, a joint project with the Cayman Islands Government - Department of Environment
              Last Modified: Thursday, July 29, 2010

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