There has been some controversy regarding the validity of Canis rufus as a species. It is possibly a naturally occuring hybrid of coyotes and grey wolves, though debate on this issue continues (Nowak, 1995, Wayne, 1995).
Red wolves communicate with conspecifics through a complex suite of behavioral, tactile, chemical, and auditory signals. Body language, pheromones, and vocalizations all serve to communicate about social and reproductive status and mood. Social bonding is often acheived through touch. Home ranges are delimited using scent marks.
Communication Channels: visual ; tactile ; acoustic ; chemical
Other Communication Modes: pheromones ; scent marks
Perception Channels: visual ; tactile ; acoustic ; chemical
Red wolves have been blamed for depredations on livestock and game. As a result, humans, mainly ranchers, farmers, and government trappers, steadily eliminated populations of red wolves. In 1967, red wolves were listed as endangered and the U.S. Fish and Wildlife Service engaged in a salvage effort to protect remaining populations. Fourteen remaining red wolves were placed in a captive-breeding facility; they have become the founders of the present red wolf population. Currently, 200+ red wolves exist, and reintroductions are occurring in a few areas, including North Carolina and the Great Smoky Mountains.
US Federal List: endangered
CITES: appendix i; no special status
IUCN Red List of Threatened Species: critically endangered
Red wolves were long thought by the public to be a serious threat to livestock. This threat has been grossly exaggerated, though they may occasionally kill domestic animals (Fox 1975).
Red wolves eat many rodents, thus helping to control the populations of these pests (Fox 1975).
Positive Impacts: controls pest population
Red wolves are important as top predators in the ecosystems in which they live.
Rodents, ungulates, and other small mammals are the main prey of red wolves. The dominant prey species include raccoons, white-tailed deer, swamp rabbits, cottontail rabbits, pigs, rice rats, nutria, and muskrats. Red wolves will also eat carrion. They typically hunt in a particular area for 7 to 10 days, then switch to a different range (Wilson & Ruff 1999, Nowak 1991).
Animal Foods: birds; mammals; carrion
Plant Foods: fruit
Primary Diet: carnivore (Eats terrestrial vertebrates)
Formerly the range of red wolves included most habitats of the southeastern United States, however this species range was reduced in historic times to extreme southeastern Texas and southwestern Louisiana. Presently, red wolves are being reintroduced into areas of their historical range--Alligator River in North Carolina, and the Great Smoky Mountains of Tennessee and North Carolina (Wilson & Ruff 1999, Nowak 1991).
Biogeographic Regions: nearctic (Native )
Before becoming endangered, red wolves inhabited mountains, lowland forests, and wetlands. Presently, red wolves survive mainly as small relict and reintroduced populations in inaccessible swampland and mountainous terrain (Wilson & Ruff 1999, Nowak 1991).
Habitat Regions: temperate ; terrestrial
Terrestrial Biomes: forest ; scrub forest
Most individuals live to about 4 years, though one captive individual was recorded at 14 years old (Wilson & Ruff 1999, Nowak 1991).
Range lifespan
Status: captivity: 14 (high) years.
Average lifespan
Status: wild: 4 years.
Average lifespan
Status: wild: 16.0 years.
Average lifespan
Status: captivity: 20.0 years.
Average lifespan
Status: captivity: 14.0 years.
Red wolves are distinguished from their nearest relative, Canis lupus, by their smaller size, relatively narrower proportions, longer legs and ears, and shorter fur. Red wolves have a total length between 1000 and 1300 mm, tail length of from 300 to 420 mm, and shoulder height of 660 to 790 mm. Among red wolves, males average 10 percent larger than females. Red wolves usually have upperparts that are a mixture of cinnamon, tawny, and gray or black, while the back is normally blackish. The muzzle and limbs are tawny and the tail is tipped with black. In winter, the reddish element of the pelage is dominant. An annual molt takes place in the summer (Wilson & Ruff 1999, Nowak 1991).
Range mass: 20 to 40 kg.
Average mass: 23.5 kg.
Other Physical Features: endothermic ; homoiothermic; bilateral symmetry
Sexual Dimorphism: male larger
Red wolves are primarily preyed on by other canids, including conspecifics from other packs, gray wolves, and coyote as a result of agonistic interactions over territories. Young red wolves may also be taken by other large predators such as alligator, large raptors, and bobcats.
The dominant male and female pair are solely able to reproduce within a pack. Other pack members assist in raising young and obtaining food for lactating females.
Mating System: monogamous ; cooperative breeder
Breeding season extends from January to March. The gestation period is 60-63 days, with average litters of 3-6 pups occurring in the spring. However, litters of up to 12 pups can occur.
Breeding season: Breeding occurs between January and March.
Range number of offspring: 1 to 12.
Average number of offspring: 3-6.
Range gestation period: 60 to 62 days.
Average age at sexual or reproductive maturity (female): 1 years.
Key Reproductive Features: iteroparous ; seasonal breeding ; gonochoric/gonochoristic/dioecious (sexes separate); sexual ; viviparous
Average number of offspring: 5.
Both males and females participate in rearing the young in the den, as well as other pack members. The young are cared for, nursed, and sheperded through their first year of life.
Parental Investment: altricial ; male parental care ; female parental care ; post-independence association with parents; extended period of juvenile learning
