Cost of resistance to parasites in digital organisms.
Journal of Evolutionary Biology, 20, (3), . (doi:10.1111/j.1420-9101.2007.01319.x).
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Virtually all organisms are attacked by parasites and are therefore expected to evolve resistance against these natural enemies. Parasite resistance is costly in a wide range of organisms, although the generality of such costs has been questioned, especially when resistance is not based on reallocation of resources. Digital organisms are increasingly used to explore aspects of life in general. In the Tierra system, there is a trade-off between resistance against parasites and competitive ability. Because digital organisms are too simple to store resources, the finding that resistance to parasites is costly in digital organisms suggests that costs of parasite resistance can also occur when resistance is not resource based.
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