PMID: 11315182Apr 21, 2001Paper

Costs of intraspecific and interspecific host sharing in acanthocephalan cystacanths

Parasitology
B S DezfuliRobert Poulin

Abstract

Larval helminths often share individual intermediate hosts with other larval worms of the same or different species. In the case of immature acanthocephalans capable of altering the phenotype of their intermediate hosts, the benefits or costs of host sharing can be evaluated in terms of increased or decreased probability of transmission to a suitable definitive host. Competitive interactions among the immature stages of acanthocephalans within the intermediate host could create additional costs of host sharing, however. The effects of intraspecific and interspecific interactions were measured in 3 sympatric species of acanthocephalans exploiting a population of the amphipod Echinogammarus stammeri in the River Brenta, Italy. The strength of interactions was assessed from differences in the size achieved by infective cystacanths in the intermediate host. The size of Pomphorhynchus laevis cystacanths was not correlated with host size, whereas the size of Acanthocephallus clavula and Polymorphus minutus cystacanths increased with host size. Reductions in cystacanth size caused by intraspecific competition were only detected in P. laevis, but may also occur in both A. clavula and P. minutus. When co-occurring in the same amphipod w...Continue Reading

Citations

Apr 23, 2003·International Journal for Parasitology·Robert PoulinA David M Latham
Jul 17, 2003·International Journal for Parasitology·Robert PoulinJanice Moore
Feb 17, 2009·Journal of Helminthology·I SaldanhaR Poulin
Aug 23, 2007·Proceedings. Biological Sciences·Andrew R WargoAndrew F Read
Jun 16, 2011·The Journal of Parasitology·Darin A KoppTimothy C Sparkes
Jul 14, 2007·The Journal of Parasitology·Tiina HasuE Tellervo Valtonen
Oct 9, 2007·The Journal of Parasitology·Daniel P Benesh, E Tellervo Valtonen
Mar 1, 2012·The Journal of Parasitology·G M Wahl, T C Sparkes
Dec 22, 2009·Trends in Parasitology·James C ChubbGeoff A Parker
Jan 22, 2009·Evolution; International Journal of Organic Evolution·Clément LagrueDevon B Keeney
Mar 29, 2005·Behavioural Processes·Frédéric ThomasJanice Moore
Jul 16, 2005·International Journal for Parasitology·B L Fredensborg, R Poulin
May 23, 2003·The Journal of Parasitology·Michelle L Steinauer, Brent B Nickol
Sep 30, 2016·Parasitology·Daniel P Benesh

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