definitive host

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Related to definitive hosts: intermediate host, Secondary host

definitive host

[də′fin·əd·iv ′hōst]
(biology)
The host in which a parasite reproduces sexually.
References in periodicals archive ?
Acanthocephalan parasites can manipulate the behavior of gammarids in a way that appears to increase their probability of being preyed upon by their definitive hosts (Lagrue et al.
A large number of metacestodes in the intermediate host does not only increase the likelihood of successful infection of the definitive host but also causes the rodent to move in a clumsier manner and, thus, being more vulnerable and more easily detectable by its predators (Combes 2001, Poulin 2007).
When examining the coevolutionary history of F magna and its definitive hosts, the concept of host spectra 'filters' is useful to consider (Euzet and Combes 1980 in Combes 2001), specifically, that 2 filters facilitate the acquisition of a host spectrum: an encounter filter and a compatibility filter.
Perca fluviatilis is the definitive host for the tapeworm Proteocephalus percae.
The invasive snail hosts can establish new sites of parasite transmission in parasite-free areas such as Paranoa Lake, where there are species that can act as intermediate and definitive hosts for the parasite (Padovesi-Fonseca et al.
Definitive hosts (including muskrats) are infected when they swallow metacercariae together with plants they eat.
Domestic dogs are definitive hosts, sheep are usually the intermediate hosts and humans may be accidental intermediate hosts.
He reported that a second larval stage of Pleurocercoids, develops in fish species that are not compatible as definitive hosts in Proteocephalus.