Infrapopulation Dynamics of Parelaphostrongylus Tenuis in White-Tailed Deer

Slomke, Angela M.; Lankester, Murray W.; Peterson, William J.

doi:10.7589/0090-3558-31.2.125

Cited by 48 publications

(40 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Lungworms were 100% prevalent in bighorn sheep on the Sheep River Wildlife Sanctuary in Alberta, Canada (Festa-Bianchet, 1991a), where prevalence of infected gastropods was 3.8% (Robb and Samuel, 1990). Prevalence of Parelaphostrongylus tenuis in white-tailed deer (Odocoileus virginianus) in northeastern Minnesota was up to 82% (Slomke et al, 1995), but ,1% of gastropods sampled on the range were infected (Lankester and Peterson, 1996).…”

Section: Discussionmentioning

confidence: 99%

Ecology of Gastropod and Bighorn Sheep Hosts of Lungworm on Isolated, Semiarid Mountain Ranges in Utah, Usa

Rogerson

Fairbanks

Cornicelli

2008

Journal of Wildlife Diseases

View full text Add to dashboard Cite

ABSTRACT:Isolated, nonmigratory populations of bighorn sheep (Ovis canadensis) may experience high exposure to lungworms (Protostrongylus spp.) through a build-up of fecal material. However, semiarid climates may hinder lungworm transmission by limiting terrestrial gastropods, the intermediate hosts. We assessed potential for lungworm transmission, documented occurrence of transmission, and identified habitat types where transmission was likely to occur on ranges of two recently introduced populations of bighorn sheep in northern Utah. Gastropods were collected weekly on Antelope Island and the Newfoundland Mountains, May-August 2001-02, from each of the four major habitat types (riparian, rock, desert shrub, and grass). Distribution of 113 bighorn sheep groups was observed, and 421 fecal pellet groups were collected to estimate lungworm levels. A total of 1,595 gastropods representing five genera were collected from both ranges. Vallonia made up 85% of all gastropods collected. Of 980 gastropods collected on Antelope Island in 2002, only Vallonia were found infected with protostrongylid-type larvae (10 of 98051%). Lungworm prevalence in bighorn fecal samples was 97% on Antelope Island and 90% on the Newfoundland Mountains. Lungworm prevalence in lambs indicated lungworm transmission was occurring on Antelope Island. Lungworm transmission was likely occurring in riparian habitat due to abundant gastropods, presence of infected gastropods, and reliance by bighorn sheep on few water sources. Differences in spatial distribution between ram and nursery groups may partly explain higher fecal larvae counts in nursery than in ram groups. We suggest lungworm levels in bighorn sheep on semiarid ranges may increase in dry years as bighorn sheep concentrate use on fewer perennial water sources.

show abstract

Section: Discussionmentioning

confidence: 99%

Ecology of Gastropod and Bighorn Sheep Hosts of Lungworm on Isolated, Semiarid Mountain Ranges in Utah, Usa

Rogerson

Fairbanks

Cornicelli

2008

Journal of Wildlife Diseases

View full text Add to dashboard Cite

show abstract

“…As well, the frequency of infection in gastropods in northern areas where moose occur is often much less than 1%. Slomke et al (1995) demonstrated that a WTD fawn in northeastern Minnesota may only ingest one infected gastropod in its first and second summer of life. Prestwood and Nettles (1977) suggested that WTD may similarly become infected with P. andersoni by isolated encounters with gastropods containing low numbers of L3.…”

Section: Discussionmentioning

confidence: 99%

“…Meningeal worm accounted for 38% of the mortalities seen over a 4 yr period following the reintroduction of moose into northern Michigan and the majority of cases (10/13) were seen in animals translocated as adults (Aho and Hendrickson, 1989). A strong protective response is thought to develop in WTD after they acquire an initial P. tenuis infection as fawns (Slomke et al, 1995). Davidson et al (1985) hypothesized that fallow deer may also have some innate resistance to P. tenuis but free-ranging animals probably survive an initial low-level infection and subsequently develop immunity to reinfection.…”

Section: Discussionmentioning

confidence: 99%

“…Although innate susceptibility must play a role in determining the success of certain ungulates cohabiting with WTD, other important factors include the density of infected WTD and whether they are young demographically and passing large numbers of larvae (Slomke et al, 1995). Also important is the degree of spatial overlap between WTD and the susceptible species, feeding habits, climatic conditions that determine the level of infection in terrestrial gastropods, and the initial infecting dose and the rate of subsequent exposure by animals capable of developing some protective immunity.…”

Section: Discussionmentioning

confidence: 99%

“…At necropsy, brain and spinal cord were removed and the surface of the meninges and the cranial venous sinuses examined for worms following the procedure of Slomke et al (1995). The cranium and vertebral canal were flushed with saline and the washings examined.…”

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Low-Dose Meningeal Worm (Parelaphostrongylus Tenuis) Infections in Moose (Alces Alces)

Lankester

2002

Journal of Wildlife Diseases

Self Cite

View full text Add to dashboard Cite

Parelaphostrongylosis has a rapid onset and is lethal in neonatal moose (Alces alces) when large numbers of third-stage Parelaphostrongylus tenuis larvae (L3) are given experimentally. Little is known, however, about the severity and prognosis of infections acquired naturally by accidentally ingesting terrestrial gastropods which are rarely infected and have few larvae. To investigate the relationship between infecting dose, age of moose, and severity of disease, five calves were given low doses of three to 10 L3 when five (nϭ2) or 9.5 mo old (nϭ3). Each of two animals initially given low doses were later challenged with a dose of 15 L3. As positive controls, two calves were given doses of 15 and 30 L3, considered to be high. All five calves given low doses showed abnormal locomotory signs at 20-28 days postinoculation (DPI) that progressively became more pronounced with hind quarter weakness and front lameness. However, after 77-130 DPI, signs diminished markedly in two of these animals and disappeared in another two. Challenge infections of 15 L3 given 199 days after initial infections had no noticeable effects although an immature worm, probably resulting from the challenge, was found in the spinal cord of one animal killed 51 days later. Two positive control animals given the high doses of 15 and 30 L3 showed moderate to severe, non-resolving, locomotory signs and had to be euthanized. Results demonstrate that single, low doses of three to10 P. tenuis L3 cause moderate disease in moose calves but over time, some worms die and animals can recover. A degree of protection may develop against future infection.

show abstract

Extrapulmonary Lungworms of Cervids

Lankester¹

2001

Parasitic Diseases of Wild Mammals

163

View full text Add to dashboard Cite

Infrapopulation Dynamics of Parelaphostrongylus Tenuis in White-Tailed Deer

Cited by 48 publications

References 15 publications

Ecology of Gastropod and Bighorn Sheep Hosts of Lungworm on Isolated, Semiarid Mountain Ranges in Utah, Usa

Ecology of Gastropod and Bighorn Sheep Hosts of Lungworm on Isolated, Semiarid Mountain Ranges in Utah, Usa

Low-Dose Meningeal Worm (Parelaphostrongylus Tenuis) Infections in Moose (Alces Alces)

Extrapulmonary Lungworms of Cervids

Contact Info

Product

Resources

About