Abstract
The aim of this study is to experimentally verify the intermediate host of a common gastrointestinal nematode, Pterygodermatites peromysci, infecting the white-footed mouse (Peromyscus leucopus) and describe the complex life cycle. As with other nematodes in the family Rictulariidae, adult worms reside in the small intestine of the host, and infective eggs are shed into the environment where they are ingested by scavenger insects. A field survey of common nocturnal insects on the forest floors of central Pennsylvania was conducted to identify the putative intermediate host. Encysted nematode larvae were recovered from the hemocoel of three species of camel cricket, Ceuthophilus pallidipes, Ceuthophilus guttulosus, and Ceuthophilus gracilipes. The mean prevalence of infection was 11–17%, and the intensity of infection ranged from 1 to 41 cysts per cricket. Laboratory white-footed mice were infected with cysts harvested from the three species of crickets. Cysts taken from the C. pallidipes produced the highest level of infection (41%); the adult worms recovered from the mice were confirmed as P. peromysci. Laboratory infections of naive C. pallidipes with P. peromysci eggs yielded a 70% infection rate, further verifying that the cricket C. pallidipes is a suitable intermediate host for P. peromysci. We discuss the importance of identifying the intermediate host for understanding the transmission dynamics of a trophically transmitted parasite.
References
Archie IH, Babero BB, Dwyer HN (1988) Some helminth parasites of chipmunks, Eutamias spp (Sciuridae) in Soutern Nevada. Proc Helminthol Soc Wash 55:74–76
Eades DC (1964) General biology and geographic variation of Ceuthophilus guttulosus Walker (Orthoptera: Gryllacridiade Rhaphidophorinae). Trans Am Entomol Soc 90:73–110
Ehman KD (2001) Nematode parasites of the eastern chipmunk from Armstrong County, Pennsylvania. J Penn Acad Sci 75:62–65
Fedynich AM, Monasmith T, Demarais S (2001) Helminth community structure and pattern in Merriam's kangaroo rats, Dipodomys merriami Mearns, from the Chihuahuan Desert of New Mexico, USA. Compar Parasitol 68:116–121
Ghazi RR, Noorunnisa, Shafi MM (1991) Pterygodermatites variabilis n-sp (Nematoda, Rictularioidea) from the Indian gerbils of Pakistan. Syst Parasitol 19:51–59
Grundman AW, Warnock RG, Wasson DL (1976) Some mechanisms of natural regulation of parasitic helminth populations. Am Mid Nat 95:347–360
Hasegawa H (1976) A species of Rictularia nematoda Rictulariidae from the field mouse Apodemus speciosus in Niigata prefecture Japan. Japanese J Parasitol 25:456–460
Hubbell TH (1936) A monographic revision of the genus Ceuthophilus (Orthoptera, Gryllacrididae, Rhaphidophorinae), vol 2. University of Florida
Lavoie KH, Helf KL, Poulson TL (2007) The biology and ecology of North American cave crickets. J Cave and Karst Studies 69:114–134
Lichtenfels JR (1970) Two new species of Pterygodermatites (paucipectines) Quentin, 1969 (Nematoda: Rictulariidae) with a key to species from North American rodents. Proc Helminthol Soc Wash 37:94–101
Luong LT, Grear DA, Hudson PJ (2009) Male hosts are responsible for the transmission of a trophically transmitted parasite, Pterygodermatites peromysci, to the intermediate host in the absence of sex-biased infection. Intl J Parasitol 39:1263–1268. doi:10.1016/j.ijpara.2009.03.007
O'Brien RT, Etges FJ (1981) Overwintering population changes of Pterygodermatites coloradensis (Nematoda, Rictulariidae) in Kentucky and Ohio. Ohio J Sci 81:114–119
Osullivan HM, Smal CM, Fairley JS (1984) A study of parasite infestations in populations of small rodents (Apodemus sylvaticus and Clethrionomys glareolus) on Ross Island, Killarney. J Life Sci Roy Dublin Soc 5:29–42
Oswald VH (1958a) Studies on Rictularia coloradensis Hall, 1916 (Nematoda: Thelaziidae). I. Larval development in the intermediate host. Trans Am Microsc Soc 77:229–240
Oswald VH (1958b) Studies on Rictularia coloradensis Hall, 1916 (Nematoda: Thelaziidae). II. Development of the definitive host. Trans Am Microsc Soc 77:413–422
Pedersen AB, Geives TJ (2007) The interaction of parasites and resources cause crashes in a wild mouse population. J Anim Ecol 77:370–377
Quentin JC (1969) Attempt at classification of the Nematoda Rictulariidae. Memoires du Museum National d'Histoire Naturelle Ser A Zoologie 54:55–115
Sardella NH, Fugassa MH (2009) Parasites in rodent coprolites from the historical archaeological site Alero Mazquiaran, vol 104. Memorias do Instituto Oswaldo Cruz, Chubut Province, Argentina, pp 37–42
Ubelaker JE, Chudhri SI, Clifford PP, Duszynski DW (2010) Helminth parasites of the spotted ground squirrel, Xerospermophilus (syn. Spermophilus) spilosoma (Bennett, 1833) Helgen, Cole, Helgen, and Wilson, 2009, from Central New Mexico, USA. Compar Parasitol 77:178–182
Vandegrift KJ, Hudson PJ (2009a) Could parasites destabilize mouse populations? The potential role of Pterygodermatites peromysci in the population dynamics of free-living mice, Peromyscus leucopus. Intl J Parasitol 39:1253–1262. doi:10.1016/j.ijpara.2009.02.025
Vandegrift KJ, Hudson PJ (2009b) Response to enrichment, type and timing: small mammals vary in their response to a springtime cicada but not a carbohydrate pulse. J Anim Ecol 78:202–209. doi:10.1111/j.1365-2656.2008.01456.x
Vandegrift KJ, Raffel TR, Hudson PJ (2008) Parasites prevent summer breeding in white-footed mice, Peromyscus leucopus. Ecology 89:2251–2258
Wilber PG, Patrick MJ, VanHorne B (1996) Helminth infections in the Townsend's ground squirrel during drought. J Helminthol Soc Wash 63:233–239
Acknowledgments
We thank the undergraduate students for their assistance with the cricket collections and dissections. Also, we thank Dr. Grear for providing helpful comments and discussions on this manuscript. This research was funded by the National Science Foundation, USA (grant number 0520468).
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Luong, L.T., Hudson, P.J. Complex life cycle of Pterygodermatites peromysci, a trophically transmitted parasite of the white-footed mouse (Peromyscus leucopus). Parasitol Res 110, 483–487 (2012). https://doi.org/10.1007/s00436-011-2542-x
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DOI: https://doi.org/10.1007/s00436-011-2542-x