Redescriptions of the Nematodes Ostertagia bisonis Chapin, 1925, of Cattle and Wild Ruminants, and Ostertagia mossi Dikmans, 1931, of Deer

Becklund, Willard W.; Walker, Martha

doi:10.2307/3276692

Cited by 9 publications

(8 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Morphologically, it is most similar to Teladorsagia circumcincta and O. ostertagi, but can be distinguished by the structure of the spicules, the copulatory bursa, and the dimensions of the esophageal valve (Becklund and Walker 1967b;Lichtenfels and Pilitt 1991); the minor male morphotype is O. kazakhstanica (see Lichtenfels and Pilitt 1991;Dr6zdz 1995). This ostertagiine is referred to the genus Orloffia by Dr6zdz (1995).…”

Section: Ostertagia Bisonismentioning

confidence: 99%

Gastrointestinal Strongyles in Wild Ruminants

Hoberg¹,

Kocan²,

Rickard³

2001

Parasitic Diseases of Wild Mammals

View full text Add to dashboard Cite

Section: Ostertagia Bisonismentioning

confidence: 99%

Gastrointestinal Strongyles in Wild Ruminants

Hoberg¹,

Kocan²,

Rickard³

2001

Parasitic Diseases of Wild Mammals

View full text Add to dashboard Cite

“…Sharhuu (1986) (Skrjabin & Orlov, 1934;Skrjabin et. al., 1954;Ivashkin, 1955;Dikov, 1961;Boev et al, 1963;Karamendin, 1967;Ivashkin et al, 1989;Becklund & Walker, 1967;Lichtenfels & Pilitt, 1991), as well as our own observations, makes us to assume that O. dahurica is not a valid species. According to the hypothesis of polymorphism, the existence of major and minor morphs of males of the same species is typical for subfamily Ostertagiinae Lopez-Neyra, 1947 (Drozdz, 1995).…”

Section: Resultsmentioning

confidence: 57%

“…Therefore, all mentioned in the literature cases of O. dahurica are to be considered as O. bisonis which makes O. bisonis one of the dominant species of helminths of Mongolian gazelle. At the same time, the level of differences in ITS-2 regions of the members of Orloffia and Ostertagia genera (Kuznetsov, 2011) does not prove Orloffia being not a valid genus but a junior synonym of Ostertagia as a number of authors suppose (Becklund & Walker, 1967;Lichtenfels & Pilitt, 1991), but supports the opinion of Drozdz (1995) insisting on the independence of Orloffia genus.…”

Section: Resultsmentioning

confidence: 81%

On gastrointestinal nematodes of Mongolian gazelle (Procapra gutturosa)

et al. 2014

View full text Add to dashboard Cite

The species composition of nematodes found at autopsy of abomasa and small intestines of 24 Mongolian gazelles in Eastern Mongolia is studied. Orloffia bisonis, Marshallagia mongolica, Nematodirus archari, N. andreevi, Trichostrongylus colubriformis, T. probolurus were registered. N. archari and N. andreevi were detected in Mongolian gazelle for the first time. All species of gastrointestinal nematodes found in Mongolian gazelles have already been registered in domestic ruminants of Mongolia. The validity of Orloffia genus is confirmed based on our own observations and literature data. Orloffia is monotypic genus with the only species O. bisonis represented by two morphs where “O. bisonis” is major and “O. kasakhstanica” is minor.

show abstract

“…Although attributes of the genital cone, synlophe, oesophagus and spicules of O. leptospicularis/kolchida and O. gruehneri/arctica have been elucidated (Lichtenfels et al, 1988a(Lichtenfels et al, , 1990, Ostertagia mossi and O. dikmansi have not been recently evaluated (Dikmans, 1931;Becklund & Walker, 1967. Recognition of the latter pair of taxa as constituents of a single polymorphic species (see Dr6zdz, 1974; was suggested by their common co-occurrence in white-tailed deer across a broad geographical range coinciding with that of the host (Becklund & Walker, 1968;Prestwood et al, 1973;Baker & Anderson, 1975;Prestwood & Pursglove, 1981;Foreyt & Trainer, 1980).…”

Section: Introductionmentioning

confidence: 99%

Comparative morphology of Ostertagia mossi and Ostertagia dikmansi (trichostrongylidae) from Odocoileus virginianus and comments on other Ostertagia spp. from the Cervidae

1993

View full text Add to dashboard Cite

The synlophes of Ostertagia mossi Dikmans, 1931 and O. dikmansi Becklund &Walker, 1968 were found to be identical supporting recognition of these as the major and minor morphotypes, respectively, of a putative species pair within the Ostertagiinae. The cervical synlophe included three narrowly spaced, continuous, parallel ridges laterally and three parallel but more widely spaced ridges in the dorsal and ventral fields (Type II and Type A patterns, respectively). The disposition of the synlophe in conjunction with a long oesophageo-intestinal valve, and attributes of the genital cone and spicules are characteristics shared among other Ostertagia spp. from cervids in the Holarctic region that allow recognition of a species group morphologically distinct from the Ostertagiinae of domestic ruminants. The morphological similarity of O. mossi/O, dikmansi, O. leptospicularis Assadov, 1953/O. kolchida Popova, 1937 and O. gruehneri Skrjabin, 1929/O. arctica Mitzkewitsch, 1929 is substantial, but these species can be differentiated by small but constant differences in the synlophe and genital complex of males; females cannot be easily distinguished. The morphological similarity of this cryptic complex of species and their relatively restricted distribution among cervids suggests a coevolutionary history for hosts and parasites in the Holarctic region.

show abstract

Redescriptions of the Nematodes Ostertagia bisonis Chapin, 1925, of Cattle and Wild Ruminants, and Ostertagia mossi Dikmans, 1931, of Deer

Cited by 9 publications

References 3 publications

Gastrointestinal Strongyles in Wild Ruminants

Gastrointestinal Strongyles in Wild Ruminants

On gastrointestinal nematodes of Mongolian gazelle (Procapra gutturosa)

Comparative morphology of Ostertagia mossi and Ostertagia dikmansi (trichostrongylidae) from Odocoileus virginianus and comments on other Ostertagia spp. from the Cervidae

Contact Info

Product

Resources

About