Sacred cows and sympathetic squirrels: The importance of biological diversity to human health
2006

The Importance of Biological Diversity to Human Health

publication Evidence: moderate

Author Information

Author(s): Andy Dobson, Isabella Cattadori, Robert D. Holt, Richard S. Ostfeld, Felicia Keesing, Kristle Krichbaum, Jason R. Rohr, Sarah E. Perkins, Peter J. Hudson

Primary Institution: Princeton University and Pennsylvania State University

Hypothesis

How does biological diversity influence the risk of zoonotic disease transmission to humans?

Conclusion

Maintaining biological diversity can help reduce the risk of infectious diseases in humans.

Supporting Evidence

  • Certain host species can reduce the transmission of diseases like malaria and Lyme disease.
  • High species diversity can dilute the risk of zoonotic diseases by reducing the abundance of competent reservoirs.
  • Habitat loss and fragmentation increase the risk of disease transmission by favoring certain host species.

Takeaway

Having a variety of animals and plants around can help keep us safe from diseases that can spread to humans.

Limitations

The study discusses complex interactions in ecological systems, which can be difficult to quantify.

Digital Object Identifier (DOI)

10.1371/journal.pmed.0030231

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