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Parasites and climate synchronize red grouse populations

Author

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  • Isabella M. Cattadori

    (The Pennsylvania State University)

  • Daniel T. Haydon

    (University of Glasgow)

  • Peter J. Hudson

    (The Pennsylvania State University)

Abstract

Feeling under the weather? Animal populations often fluctuate in synchrony with climate fluctuations, but whether this is a direct effect of climate on individual animals, or an indirect effect on predators and food supply is not clear. A study of red grouse populations in northern England identified the years in which populations across the country came into synchrony, revealing that the start of synchrony coincided with phases of population increase. Numerical modelling shows that these upswings in grouse population correlate with conditions that are unfavourable for the spread of a gastrointestinal parasite that reduces grouse fecundity. This suggests that specific climate events can lead to the spread of disease or parasite infestation, indirectly causing synchronized changes in the abundance of the host.

Suggested Citation

  • Isabella M. Cattadori & Daniel T. Haydon & Peter J. Hudson, 2005. "Parasites and climate synchronize red grouse populations," Nature, Nature, vol. 433(7027), pages 737-741, February.
    • Handle: RePEc:nat:nature:v:433:y:2005:i:7027:d:10.1038_nature03276
    DOI: 10.1038/nature03276
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    Cited by:

    1. Gao, Meng & Li, Wenlong & Li, Zizhen & Dai, Huawei & Liu, Hongtao, 2007. "Spatial synchrony in host–parasitoid populations," Ecological Modelling, Elsevier, vol. 204(1), pages 29-39.

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