Hosts and parasites: many ways of interactions ; an approach with two model organisms, the three-spined stickleback (Gasterosteus aculeatus) and its cestode parasite (Schistocephalus solidus)
Parasites are considered to be one of the major driving forces in the evolution of organisms. The outcome of an infection might, however, not only be determined by host-parasite interactions but also by within-host dynamics. Using the three-spined stickleback (Gasterosteus aculeatus) and the tapeworm Schistocephalus solidus as model organisms, this thesis addresses various aspects of such interactions. Apart from parasite mate choice as potentially important parasite-parasite interaction, dynamics of multiple infections and various aspects of the host's immune system were investigated.
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