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Damped long-term host-parasite Red Queen coevolutionary dynamics: a reflection of dilution effects?

(2013) ECOLOGY LETTERS. 16(12). p.1455-1462
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Abstract
An increase in biological diversity leads to a greater stability of ecosystem properties. For host-parasite interactions, this is illustrated by the dilution effect': a negative correlation between host biodiversity and disease risk. We show that a similar mechanism might stabilise host-parasite dynamics at a lower level of diversity, i.e. at the level of genetic diversity within host species. A long-term time shift experiment, based on a historical reconstruction of a Daphnia-parasite coevolution, reveals infectivity cycles with more stable amplitude in experienced than in naive hosts. Coevolutionary models incorporating an increase in host allelic diversity over time explain the detected asymmetry. The accumulation of resistance alleles creates an opportunity for the host to stabilise Red Queen dynamics. It leads to a larger arsenal enhancing the host performance in its coevolution with the parasite in which it takes all the running both antagonists can do to keep in the same place'.
Keywords
HETEROGENEITY, POPULATIONS, DAPHNIA, DIVERSITY, BIODIVERSITY, ADAPTATION, EVOLUTION, SEXUAL REPRODUCTION, ANTAGONISTIC COEVOLUTION, RAPID GENETIC CHANGE, stability of ecosystem properties, Host-parasite interaction, long-term coevolutionary dynamics

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Citation

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Chicago
Decaestecker, Ellen, Herbert De Gersem, Yannis Michalakis, and Joost Raeymaekers. 2013. “Damped Long-term Host-parasite Red Queen Coevolutionary Dynamics: a Reflection of Dilution Effects?” Ecology Letters 16 (12): 1455–1462.
APA
Decaestecker, E., De Gersem, H., Michalakis, Y., & Raeymaekers, J. (2013). Damped long-term host-parasite Red Queen coevolutionary dynamics: a reflection of dilution effects? ECOLOGY LETTERS, 16(12), 1455–1462.
Vancouver
1.
Decaestecker E, De Gersem H, Michalakis Y, Raeymaekers J. Damped long-term host-parasite Red Queen coevolutionary dynamics: a reflection of dilution effects? ECOLOGY LETTERS. 2013;16(12):1455–62.
MLA
Decaestecker, Ellen, Herbert De Gersem, Yannis Michalakis, et al. “Damped Long-term Host-parasite Red Queen Coevolutionary Dynamics: a Reflection of Dilution Effects?” ECOLOGY LETTERS 16.12 (2013): 1455–1462. Print.
@article{5697637,
  abstract     = {An increase in biological diversity leads to a greater stability of ecosystem properties. For host-parasite interactions, this is illustrated by the dilution effect': a negative correlation between host biodiversity and disease risk. We show that a similar mechanism might stabilise host-parasite dynamics at a lower level of diversity, i.e. at the level of genetic diversity within host species. A long-term time shift experiment, based on a historical reconstruction of a Daphnia-parasite coevolution, reveals infectivity cycles with more stable amplitude in experienced than in naive hosts. Coevolutionary models incorporating an increase in host allelic diversity over time explain the detected asymmetry. The accumulation of resistance alleles creates an opportunity for the host to stabilise Red Queen dynamics. It leads to a larger arsenal enhancing the host performance in its coevolution with the parasite in which it takes all the running both antagonists can do to keep in the same place'.},
  author       = {Decaestecker, Ellen and De Gersem, Herbert and Michalakis, Yannis and Raeymaekers, Joost},
  issn         = {1461-023X},
  journal      = {ECOLOGY LETTERS},
  language     = {eng},
  number       = {12},
  pages        = {1455--1462},
  title        = {Damped long-term host-parasite Red Queen coevolutionary dynamics: a reflection of dilution effects?},
  url          = {http://dx.doi.org/10.1111/ele.12186},
  volume       = {16},
  year         = {2013},
}

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