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Niche Restriction and Mate Finding in Vertebrate Hosts Niche Restriction and Mate 9 Finding in Vertebrate Hosts Klaus Rohde Scho ...
heavily and how frequently particular host species are infected. Host specificity takes intensity and prevalence (frequency) of ...
heavily infected than expected on a random basis, and some (or most) are little infected or not infected at all. Very often, agg ...
genetically programmed to select certain microhabitats, using particular (but unknown) cues (for a recent study of niche prefere ...
suggested (e.g. Ochoa and Jaffe, 1999), although an increase in diversity is probably the most commonly accepted explanation. Ho ...
ones, i.e. dioecy does not promote radiation, at least in these plants (Heilbuth, 2000). The importance of cross-fertilization i ...
early stage. Nevertheless, specimens of this species with the cirrus inserted into their own metraterm were seen (Fig. 4 in Rohd ...
the reproductive lifetime of the worm. However, it is unlikely that mating will occur soon after maturation. Attraction by phero ...
offspring, occurs in experimentally infected mice (Southgateet al., 1995), indicating that mate attraction is not limited to mal ...
between their hosts (salmon) (Hullet al., 1998), which may explain the involvement of long-range chemical stimuli. But, overall, ...
Gastrocotylidae), but it also shows marked differences. Thus, both species possess similar multiciliate and non-ciliate receptor ...
182 K. Rohde Fig. 9.5. Sensory receptors of Polylabroides australis (Monogenea, Polyopisthocotylea, Microcotylidae) from the gil ...
the total number of receptors was estimated to be about 20,000–40,000 (Rohde, 1989). All stages in the life cycle of this specie ...
acanthocephalans and monogeneans. Kamegai (1986) reported that juve- niles of the monogeneanDiplozoon nipponicumonCarassius cara ...
much smaller microhabitats than vagile and populous species of the same group. There is indeed evidence that microhabitat width ...
186 K. Rohde ...
different sites, whereas closely related species with markedly different copulatory organs may inhabit the same site (Figs 9.2 a ...
phenotypes’, can be used to symbolize the state of the two arms races. Behavioural adaptations may reinforce host specificity, e ...
Supplementary Mechanisms for Niche Restriction: Specialization and Avoidance of Interspecific Competition It has never been sugg ...
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