Leveraging small biodiversity reserves to prevent zoonotic disease : insights from dilution effect and pathogen adaptation theories

2025

Article

Arnal Audrey, Gozlan Rodolphe, Charbonnel N., Bouilloud M., Chaves A., Lounnas Manon, Gauthier-Clerc M., Vigueras-Galván A.L., Arnathau C., Roiz David, Bento A.I., Morand S., Walzer C., Suzán G., Sarmiento Silva R.E., Roche Benjamin

Disease Biology, Genetics, and Socioecology, 2025, 1 (2), 6 [10 p.] ISSN 2982-3048

In today's landscape of zoonotic pathogen outbreaks, the dilution effect theory, i.e., the theory that greater biodiversity can help curb pathogen transmission among wildlife, has gained significant attention. However, the positive link between animal diversity and pathogen richness urges us to apply this concept with caution. It is crucial to explore how conservation biology can safeguard human health by preventing the emergence of zoonotic diseases. By investigating the implications of conservation strategies on animal communities and pathogen transmission as well as the adaptive capabilities of pathogens, we propose that biodiversity conservation based on small reserves can effectively reduce pathogen spread in wildlife, provided certain measurable conditions are met. Given the urgent need to tackle both zoonoses disease emergence and biodiversity loss, these interventions should be prioritized and implemented without delay.

Santé : généralités [050] ; Santé : aspects socioculturels, économiques et politiques [056] ; Sciences du monde animal [080] ; Etudes, transformation, conservation du milieu naturel [082]

Fonds IRD [F B010096591]

fdi:010096591