| Why should parasite resistance be costly? |
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| 作者姓名： | Rigby MC Hechinger RF Stevens L |
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| 摘 要： |
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Why should parasite resistance be costly? |
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| Rigby MC,Hechinger RF,Stevens L.Why should parasite resistance be costly?[J].Trends in Parasitology,2002,18(3):116-120. |
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| Authors: | Rigby Mark C Hechinger Ryan F Stevens Lori |
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| Institution: | Dept of Ecology, Evolution and Marine Biology, University of California, Santa Barbara, CA 93106, USA. rigby@lifesci.ucsb.edu |
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| Abstract: | Parasite resistance is sometimes associated with fitness costs. Costs of resistance are fundamentally important in epidemiology, and in the ecology and evolution of host-parasite interactions. The cost of resistance is often envisioned as the cost of re-allocating limiting resources to resistance machinery from other traits. This popular paradigm has resulted in a spate of research that assumes a fitness cost to resistance. We comment on this trend and propose a working framework of various resistance means and mechanisms. Within these means and mechanisms, we suggest that many are not likely to incur significant fitness costs. |
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