Parásitos y Hospederos
una íntima interacción ecológica que coevoluciona a lo largo de una compleja carrera a través del tiempo
Abstract
The parasitism is a negative ecological relationship of physiological exploitation between two species, in which only one of the antagonistic organisms involved benefits: the parasite. The other involved, the host, is an organism from which the parasite obtains nutrients during one or all phases of its life cycle. This article analyzes this relationship from an ecological and evolutionary perspective, taking helminth as parasites and fish as hosts, as an example to exemplify the adverse effects derived from this relationship. Among the negative effects that parasites can inflict on their hosts are the reduction of reproductive success or survival; the decrease or loss of body condition (decrease in health), and the influence or manipulation of the “normal” behavior of the hosts, in a clear examples of coevolution in one of the most interesting and widespread ecological relationships in nature: parasite-host relationship.
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References
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