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How will global climate change affect parasite-host assemblages?

Daniel R Brooks1, Eric P Hoberg

  • 1Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, Ontario, M5S 3G5, Canada. dbrooks@zoo.utoronto.ca

Trends in Parasitology
|October 27, 2007
PubMed
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Climate change drives parasite host switching, leading to new disease emergence. Ecological fitting allows parasites to infect new hosts without evolving new capabilities.

Area of Science:

  • Ecology
  • Evolutionary Biology
  • Parasitology

Background:

  • Parasites are essential to ecosystems.
  • Host switching in parasites is common, especially during climate change events.
  • Climate change causes ecological disruptions affecting parasite transmission.

Purpose of the Study:

  • To explore the relationship between climate change and parasite host switching.
  • To understand the role of ecological fitting in disease emergence.

Main Methods:

  • Analysis of ecological and evolutionary data.
  • Modeling parasite transmission dynamics under climate change scenarios.

Main Results:

  • Global climate change induces shifts in host-parasite interactions.

Related Experiment Videos

  • Ecological fitting facilitates parasite emergence in novel hosts.
  • Altered transmission dynamics increase host-switching potential.

    • Conclusions:

    • Climate change is a significant driver of parasite evolution and host range expansion.
    • Ecological fitting is a key mechanism for novel parasite-host associations.
    • Understanding these dynamics is crucial for predicting and managing emerging infectious diseases.