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PLoS Pathog. 2011 Sep;7(9):e1002160. doi: 10.1371/journal.ppat.1002160. Epub 2011 Sep 15.

Plague and climate: scales matter.

Author information

  • 1Centre for Ecological and Evolutionary Synthesis (CEES), University of Oslo, Oslo, Norway.

Erratum in

  • PLoS Pathog. 2012 May;8(5): doi/10.1371/annotation/84f83f75-2e53-48cf-9f43-7e5eaed74437. Ben Ari, Tamara [corrected to Ben-Ari, Tamara].

Abstract

Plague is enzootic in wildlife populations of small mammals in central and eastern Asia, Africa, South and North America, and has been recognized recently as a reemerging threat to humans. Its causative agent Yersinia pestis relies on wild rodent hosts and flea vectors for its maintenance in nature. Climate influences all three components (i.e., bacteria, vectors, and hosts) of the plague system and is a likely factor to explain some of plague's variability from small and regional to large scales. Here, we review effects of climate variables on plague hosts and vectors from individual or population scales to studies on the whole plague system at a large scale. Upscaled versions of small-scale processes are often invoked to explain plague variability in time and space at larger scales, presumably because similar scale-independent mechanisms underlie these relationships. This linearity assumption is discussed in the light of recent research that suggests some of its limitations.

PMID:
21949648
[PubMed - indexed for MEDLINE]
PMCID:
PMC3174245
Free PMC Article
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