Deer hybrids

Family Cervidae

Mammalian Hybrids

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Note: Deer hybrids are extremely common. A variety of deer hybrid zones exist around the world.

Moose
Moose
(Alces alces)

red-deer
Red Deer (Cervus elaphus), known also as an Elk or Wapiti in North America

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Note: In Europe, Alces alces is referred to by the common name elk, whereas in North America the common name used is moose. A. alces is divided into two main types, western and eastern, which have a hybrid zone in the Yenisei River valley and Altai Mountains (central Siberia). Lister 2005.

Alces alces [Moose | Elk] (2n = 70)
× Bos taurus (♀) [European Domestic Cattle] CON: northern North America, northern Eurasia. See the separate article “Moose × Cow.”
× Cervus elaphus (♀?) [Red Deer | Elk | Wapiti] NHR? CON: northern North America, northern Eurasia. See the separate article “Moose × Red Deer hybrids.”
× Equus caballus (♀) [Domestic Horse] See the separate article "Moose × Horse."

Axis deer
Axis deer
(Axis axis)

Axis axis [Axis Deer | Chital | Indian Spotted Deer]
× Axis porcinus (↔ usu. ♂) [Hog Deer] CHR. HPF. CON: India. Backcrosses to A. axis have been reported. The cross has occurred in both directions. McMaster (1871, p. 113) describes a young hybrid female produced in an Indian zoo as being of a darker color than her axis deer father and with fainter spots. He also said she “carries her head low like her porcine mother and thus runs with the back apparently much arched. The ears struck me as being larger than those of a spotted fawn of about the same age or size.” Gray says one hybrid resembled A. porcinus "in head, face and horns." Dathe 1966; Gray 1971 (p. 150); International Zoo Yearbook 1966 (p. 400), 1967 (p. 318), 1968 (p. 307), 1969 (p. 236); 1977 (p. 324); Rörig 1903.
× Cervus duvaucelii [Swamp Deer | Barasingha] CHR. CON: Pakistan, India? International Zoo Yearbook 1970 (p. 271). See also: Axis axis × Cervus nippon.
× Cervus elaphus (♀) [Red Deer | Elk | Wapiti] Some authors (e.g., Gray 1972, p. 150) list this cross on the basis of reports that refer to “Spotted Deer” a common name used for both A. axis and Cervus nippon. The hybrids in question in such reports are usually Cervus elaphus × C. nippon (q.v.). However, Röse (1869, pp. 199-200) does report this cross and gives details. The parents were raised together and produced four hybrids, three stillborn, from four pregnancies. The fourth pregnancy was unusual in that the red deer mother was impregnated both by the Axis mate as before, but also by a C. elaphus stag. After an eight-month gestation, the mother gave birth to a dead hybrid calf, but one month later, a healthy, pure red deer calf was born. The single, viable hybrid calf reached adulthood.
× Cervus nippon [Sika Deer] A three-way hybrid, Cervus duvaucelii × (Cervus nippon × Axis axis), has been reported. International Zoo Yearbook (1972, p. 336).
× Cervus timorensis (♂) [Rusa] CHR. DRS. The Paris menagerie (Jardin des Plantes) had a hybrid in 1840. Geoffroy Saint-Hilaire 1840.
× Cervus unicolor [Sambar] NHR? Gono Semiadi (pers. comm. to the IUCN, 2006; Intenet Citations: SAMBA, accessed June 3, 2012) says hybridization is probably occurring in Sumatra between the sambar and the introduced axis deer.
× Dama dama [Fallow Deer] The Bartlett Society website (Internet Citations: ZOOH; accessed July 12, 2012) lists this cross, citing Bennett (1835, p. 256), who says, “it is even stated on the authority of Peter Collinson that a mixed progeny has been obtained between them [i.e., axis deer] and the Fallow-Deer.” However, Bennett, writing in the first half of the 19th century, uses the name “Fallow-Deer” (and, in several places, “Virginia Fallow-Deer”) which has to be interpreted as Odocoileus virginianus, not Dama dama.
× Hemitragus jemlahicus (♂) [Himalayan Tahr | Jharal] CHR. See the separate article "Himalayan Tahr × Axis Deer hybrids."
+ Muntiacus muntjak [Indian Muntjac] Buffon (1827, p. 174) reported no hybrids of this type, but he does mention that a male Indian muntjac shipped to Europe with a female axis deer was "tormented with desire to cover her, but was too small to succeed" ("Il y avait avec lui une femelle d'axis qu'il tourmentait beaucoup pour la couvrir mais il était trop petit pour y réussir.").
× Odocoileus virginianus (♀) [White-tailed Deer] CHR. DRS. See: Axis axis × Dama dama. Lantz 1910 (p. 23).

Note: The IUCN lists A. porcinus as endangered.

Axis porcinus [Hog Deer]
See also: Axis axis.
× Capreolus capreolus (♀) [Western Roe Deer] CHR. DRS. Two hybrids, one of each sex, were born at the Dresden Zoo on Mar. 3, 1862. They died eight days after birth (for unspecified reasons). Opel 1863 (pp. 65, 66).
× Dama dama(♀) [Fallow Deer] CHR. DRS. A hybrid was raised at Bloemfontein Zoo, South Africa. Gray 1971 (p. 151).

roe deer
A female roe deer
(Capreolus capreolus)

Note: Capreolus is Latin for young roe-deer, wild goat or chamois.

Capreolus capreolus [Western Roe Deer] (2n = 70)
See also: Axis porcinus.
× Capra hircus (♀) [Domestic Goat] CHR?? In an extremely old and undetailed record, Bechstein (1801, p. 491) lists this cross and says the offspring blend the characters of the parents. Ackermann (1898, p. 66) also lists this hybrid (citing Weidmanns Feierabende, ein neues Handbuch für Jaeger und Jagdfreunde, 1819, p. 33). For more information about goats mating with roe deer, see the separate article "Sheep/Roe Deer Hybrids"
× Capreolus pygargus (♂) [Eastern Roe Deer] CAEBHR. Parapatric contact zone (lower Volga basin, Russia). HPF(♂&♀). The hybrid zone is situated on the right bank of the Volga (Danilkin 1996). Most, but not all, F₁ males are sterile. In an evaluation of mixed pairs, C. pygargus males successfully fertilized C. capreolus females 50-60% of the time, but only about 20% of females impregnated in this way deliver unassisted live fawns (the hybrid fetuses are so large that either they or the mothers often die). Reciprocal matings did not occur (rutting C. capreolus males will not mount C. pygargus females). Sokolov and Gromov (p. 439) say some male hybrids are sterile. Danilkin 1986, 1995, 1996; International Zoo Yearbook 1970 (p. 273), 1971 (p. 284); Sokolov and Gromov 1985, 1990; Stubbe and Bruchholz 1980; Zernahle 1980.
× Ovis aries (♂) [Domestic Sheep] See the separate article “Sheep-deer hybrids.”

Note: Hybrid zones exist between three populations (mantschuricus, pygargus, tianschanicus) treated as races of Capreolus pygargus. Sokolov and Gromov 1990 (p. 442).

Capreolus pygargus [Eastern Roe Deer]
× Cervus elaphus (♀) [Red Deer | Elk | Wapiti] CHR. CON: northern Asia. Carl Hagenbeck (1909, pp. 216-219) produced this cross, which he says “gives very good results."

Cervus alfredi [Visayan Spotted Deer | Prince Alfred’s Deer]
× Cervus mariannus (♀) [Philippine Brown Deer] CHR. HPF(♀♀). CON: Philippines. Two hybrids were born in the London Zoo in 1871 and 1872. A female hybrid later backcrossed to a Cervus mariannus male. Ackermann 1898; Flower 1929a (p. 310); Zuckerman 1953.

Cervus duvaucelii [Swamp Deer | Barasingha]
See also: Axis axis.
× Cervus unicolor [Sambar] NHR?? CON: northern India. In a brief article, Mr. Frank Finn, Deputy Superintendent of the Indian Museum, opposes the opinion of Mr. David Ezra that an animal killed in the vicinity of Cooch Behar, India in the late 1800s was a probable hybrid of this type. Finn 1902.

Note: In Europe, Cervus elaphus is referred to by the common name “red deer,” whereas in North America the common names are “elk” or “wapiti.” These two deer have often been treated as separate species (Cervus canadensis in the New World and Cervus elaphus in the Old World), particularly since the publication of Pitra et al. (2004), but the two have often simply been lumped under the name Cervus elaphus. Hybrids of the two are fertile in both sexes (Flower 1929a, p. 317; Gray 1971, p. 152; Howard 1965; Lantz 1910; ; Rörig 1903; Seitz 1959a; von Knottnerus-Meyer 1904; Wodzicki 1950). Here, deer hybrids involving Cervus canadensis are listed under the name of Cervus elaphus.

Cervus elaphus [Red Deer | Elk | Wapiti] (2n = 68)
See also: Alces alces; Axis axis; Capreolus pygargus.
× Bos taurus (♀) [European Domestic Cattle] See the separate article “Cow × Red Deer hybrids.” Also see: Alces alces × Bos taurus.
× Cervus nippon (↔ usu. ♂) [Sika Deer] CAENHR(Ireland, Britain, Europe, New Zealand and eastern Asia). HPF(♂&♀). See the separate article “Sika × Red Deer Hybrids.”
× Cervus unicolor (♂ prob. ↔) [Sambar] CHR. Muir et al. artificially inseminated 400 red deer hinds with C. unicolor semen and 31 (8%) were pregnant at 40 days, and 24, at 100 days. Only four pregnancies were full term. A single female calf was born alive and reared. In the same study, ten sambar hinds were inseminated with C. elaphus semen, five (50%) were pregnant at 40 days, but none, at 100 days. Since the rate of initial impregnation was more than six times higher with the cross in the latter direction, it seems likely that a larger number of inseminations would have produced hybrid offspring. Long et al. (1998) showed that hybrids of this type can be identified by their rutting vocalizations and alarm calls alone. Harrington 1973 (citing Powerscourt); Muir et al. 1997; Powerscourt (Viscount) 1884 (p. 208).
× Dama dama [Fallow Deer] NHR? CON: western Eurasia. Hegendorf (1926) pictures an alleged wild-shot female hybrid. If this animal was actually a C. elaphus × D. dama hybrid, then it was partially fertile, since it had a calf with it when it was shot.
× Elaphurus davidianus [Père David’s Deer] CHR. HPF(♂&♀). CON: formerly, northern China. Three male F₁ hybrids sired 143 backcrosses with red deer females. Martin et al. (1974, p. 453) describe these deer hybrids as “endlessly fertile.” However, Fennessy and Mackintosh (1992) say hybridization attempts using artificial insemination were only 13% successful and were followed by a 40% embryo mortality rate, yielding only 8% full-term pregnancies. E. davidianus is extinct in the wild, but efforts are underway to reintroduce it to its native habitat. See also: Cervus elaphus × Panolia eldii. Asher et al. 1988; Fennessy and Mackintosh 1992; Fennessy et al. 1991; Flower 1929b (p. 318); Goosen 1997; Goosen et al. 1997, 1998, 1999; Krzywinski 1993; Tate et al. 1992, 1995, 1997.
× Equus caballus [Horse] See the separate article “Horse-deer hybrids.”
× Odocoileus hemionus [Mule Deer] Ackermann (1898, p. 61) says this cross ("Cervus canadensis × C. mexicanus") occurred at the London Zoo on 9 Sept. 1865 and cites Zoologischer Garten (1873, p. 36). This hybrid is not, however, listed in Flower's List of Vertebrated Animals exhibited in the Gardens of the Zoological Society of London, 1828-1927 (Flower 1929a), nor is it listed on the page that Ackermann cites. Therefore he seems to have listed it in error. Cervus mexicanus is a synonym of Odocoileus hemionus mexicanus
× Ovis aries (♀) [Domestic Sheep] Bronn (1847, p. 167) lists this cross but cites no sources.
× Panolia eldii [Eld's Deer] On the basis of molecular data, Pitra et al. (2004) suggest that Elaphurus, the genus to which Père David’s Deer (Elaphurus davidianus) belongs, arose during the Pliocene as a product of this cross. Other deer, known from fossils but now extinct, have been treated as species of Elaphurus (Elaphurus formosanus, Elaphurus meziesianus, Elaphurus bifurcatus, and Elaphurus shikamai).

Cervus mariannus [Philippine Brown Deer] (nigricans) See: C. alfredi.

Note: Captive deer hybrids are known between two types (nippon, taiouanus) formerly treated as separate species, but now as races of C. nippon. International Zoo Yearbook 1973 (p. 339)

Cervus nippon [Sika Deer]
See also: Axis axis, Cervus elaphus.
× Cervus unicolor [Sambar] CHR. CON: southern China? A few hybrids were produced at Woburn in the U.K. Whitehead 1993 (p. 312).
+ Ovis aries (♂) [Domestic Sheep] In Kunming, China, at the Yunnan Wild Animal Park, a ram and a sika doe formed a mated pair and have been many times photographed mating with each other. Neither of these animals was interested in sexual partners of its own kind. See also the separate article "Sheep-deer hybrids." Internet Citations: SMACK

Cervus timorensis [Rusa]
See also: Axis axis.
× Cervus unicolor [Sambar] CHR. HPF(♂&♀). DRS. Deer hybrids of this type exhibit heterotic growth. At ten months of age, they are as heavy as pure R. timorensis at 20-24 months. Male hybrids produce offspring with C. timorensis females, but female hybrids produce offspring with C. unicolor males. Limited commercial production occurs. According to Gono Semiadi (pers. comm. to the IUCN, 2006; Intenet Citations: SAMBA) hybridization with the rusa is a conservation threat to the sambar, where it has been introduced into the sambar’s range in Pewajam District, East Kalimantan. Idris and Moin 2009; Leslie 2011 (p. 18); Slee 1984, 1985; Van Mourik and Schurig 1985. Internet Citations: RIRD, SAMBA.

Cervus unicolor [Sambar] (2n = 56]
See also: Axis axis; Cervus duvaucelii; C. elaphus; C. timorensis; C. unicolor.
× Odocoileus virginianus [White-tailed Deer] CHR. DRS. In correspondence with Brown published in The American Naturalist, Caton says that he produced this hybrid, but gives no details. Brown and Caton 1880 (p. 396).

Dama dama [Fallow Deer]
See also: Axis axis, A. porcinus; Cervus elaphus.
× Dama mesopotamica (↔ usu. ♂) [Mesopotamian Fallow Deer] CHR. HPF. CON: possible contact near border of Turkey and Iraq? D. mesopotamica is designated as endangered. These deer hybrids are commonly produced for venison. Conception rates with cryopreserved semen are lower in mixed matings (50-60%) than in pure D. dama matings (60-70%). These taxa are sometimes lumped. Asher et al. 1993; Crandall 1964; Fletcher 2001; Flower 1929a (p. 308); Mylrea et al. 1991; Zuckerman 1953 (p. 893). Internet Citations: RIRD.

Dorcelaphus crooki [Crook Black-tailed Deer] See: Odocoileus hemionus × Odocoileus virginianus.

Elaphurus davidianus [Père David’s Deer] See: Cervus elaphus; Cervus elaphus × Panolia eldii.

Mazama americana [Red Brocket]
× Pudu puda [Pudu] CHR. DRS. The cross was originally reported by Weinland(1860, p. 9) as “Pitahirsch Cervus rufus × Cervus pudu.” Allen (1915, p. 538), writing in the early twentieth century, noted that Cervus rufus and Mazama pita are synonyms of Mazama rufa. M. rufa has since been lumped withMazama americana. Cervus pudu is a synonym ofPudu puda. Der Zoologische Garten 1862 (vol. 2, p. 9); Wagner 1863 (p. 85).

Muntiacus muntjak [Indian Muntjac]
See also: Axis axis
× Muntiacus reevesi (↔) [Reeves’s Muntjac] CHR. HPF(♀♀)? CON: southeastern China. F₁ body size and antler pattern resemble M. reevesi, but coat color resembles M. muntjak. These muntjacs differ markedly in karyotype and chromosome counts (2n = 6/7 in M. muntjak and 46 in M. reevesi.). Early authors (e.g., Ackermann 1898, Przibram 1910) claim that female hybrids from this cross are sometimes fertile. Shi and Pathak (1981) found no mature spermatozoa in the testes of a three-year-old hybrid. Nietzel et al. (2012) examined a male hybrid (male Indian × female Chinese) and found that "A considerable number of spermatocytes degenerate, while others are able to enter meiosis II without completion of meiosis I and undergo a mitotic division leading to diploid speramtids." They did not, however, detect any mature spermatocytes. NKing 1993 (p. 150); Shi et al. 1980; Shi 1980; Shi and Pathak 1981; Zuckermann 1953 (p. 891).
× Muntiacus vaginalis [Northern Red Muntjac] NHR. ENHI. A parapatric contact zone extends across the Malaysian Peninsula, heading almost due south from Surat Thani to Khlong Thom in the south. Groves (2005) reported the presence of probable hybrids in this region. Parapatric distribution between similar organisms, in conjunction with initial reports of natural hybrids, usually implies the existence of a hybrid zone. So extensive hybridization can be inferred.

Muntiacus reevesi [Reeves’s Muntjac] See: Muntiacus muntjak.

Muntiacus vaginalis [Northern Red Muntjac] See: Muntiacus muntjak.

Odocoileus columbianus [Black-tailed Deer]
× Odocoileus hemionus (↔) [Mule Deer] CAENHR(Cascade Mountains, northwestern U.S.). HPF(♂&♀). Although once treated as separate species, these these two types of deer are now usually lumped. Latch et al. 2011 state that Black-tailed Deer and the Mule Deer "are morphologically, ecologically and genetically distinct, yet hybridize readily along a zone of secondary contact between the east and west slopes of the Cascade Mountains (Washington and Oregon, USA). Using microsatellite and mitochondrial DNA, we found clear evidence for extensive hybridization and introgression between lineages, with varying degrees of admixture across the zone of contact. The pattern of hybridization in this region closely resembles a hybrid swarm; based on data from 10 microsatellite loci, we detected hybrids that extend well beyond the F1 generation, did not detect linkage disequilibrium at the centre of the zone and found that genotypes were associated randomly within the zone of contact." See also: Cowan 1936; Jackson 1921; Wallmo 1981.

Note: Two populations (crooki, hemionus), treated as races of Odocoileus hemionus, hybridize on the Mogollon Plateau. Hoffmeister 1962, 1986 (p. 543).

Odocoileus hemionus [Mule Deer]
See also: Cervus elaphus; Odocoileus columbianus.
× Ovis aries (♀) [Domestic Sheep] See the separate article “Sheep/Mule Deer Hybrids.”
× Odocoileus virginianus (↔ usu. ♂) [White-tailed Deer] CAENHR. CON: western U.S. HPF(♂&♀). See the separate article “White-tailed Deer/Mule Deer Hybrids.”

Odocoileus virginianus [White-tailed Deer]
See: Cervus unicolor; Odocoileus hemionus.
× Bos taurus [European Domestic Cattle] An anecdotal report of such a hybrid exists (Access Article).
× Equus caballus [Horse] See the separate article “Horse-deer hybrids.”
× Ovis aries [Domestic Sheep] There is an anecdotal report of such a hybrid on page 3 of the Aug. 9, 1898 Semi-weekly Interior Journal, a newspaper published Stanford, Kentucky (Access Article). Another such report appears on page 2 of the June 01, 1902 The Times, a newspaper published Richmond, Virginia (Access Article).

Panolia eldii [Eld's Deer] See: Cervus elaphus.

Pudu puda [Pudu] See: Mazama americana.

Rangifer tarandus [Caribou | Reindeer] See the separate article “Reindeer × Cow.” Although both animals called caribou and ones called reindeer are referred to by the same scientific name, Rangifer tarandus, the caribou is a wild animal, while the reindeer, as its name suggests, is a semidomesticated animal. As might be expected, feral reindeer interbreed with wild caribou. Thus, with respect to deer hybrids of this type Mager et al. (2011; see Internet Citations: RANGI) state that, “Reindeer herding was once widespread on Alaska’s North Slope. Inupiat reindeer herders from Barrow, Alaska witnessed the loss of their reindeer to wild caribou in the 1940s and, though reindeer survival is presumed to be low in the wild, many hunters and herders have observed reindeer-like animals in caribou herds. Our study investigates the implications of historical contact between reindeer and caribou through DNA analysis and interviews with elder reindeer herders and hunters. Interviewees shared detailed memories of the conditions under which reindeer were lost to caribou herds, and described the morphological and behavioral characteristics used to distinguish between caribou and reindeer. They also expressed a range of perspectives on potential interbreeding between the two. Our genetic analysis reveals that though the North Slope herds demonstrate fidelity to calving grounds, gene flow is sufficient to counter genetic divergence between the herds. Within those herds, there are low but notable levels of reindeer introgression, with a few individuals putatively assigned as recent hybrids. Within domestic reindeer, one individual was identified as a caribou, and two others appear to be first-generation hybrids. Our results provide evidence of limited reindeer-caribou hybridization, but suggest that any historical reindeer-caribou interbreeding did not result in a large proportion of reindeer ancestry in North Slope herds.”

dog-cow hybrid
An alleged dog-cow hybrid birthed in Indonesia in 2011. Read more …

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By the same author: Handbook of Avian Hybrids of the World, Oxford University Press (2006).

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