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An Epidemiological Approach to the Dynamics of Chytidiomycosis on a Harlequin Fog Population

Amphibious species around the world are experiencing catastrophic decline and extinction. Chytridiomycosis, a newly recognized emerging infectious disease, is now thought to be a major contributor to observed rapid decline. Chytridiomycosis is a skin disease caused by the Chytrid fungus, a water-borne pathogen prevalent in Neotropical habitats. The Harlequin Frog, Atelopus Varius, native to the montane regions of Costa Rica, is one of the hundreds of species threatened by this epidemic disease. We study the dynamics of this host-pathogen system in a spatial-explicit setting. In order to gain qualitative understanding on the nature of this system, we conduct a mean field approximation, pair approximation, and computer simulation.

Article Number:
MTBI-03-02M

Year:
2006

Authors:
Mario Antonio Ayala - Valenzuela, Universidad de Colima
Casandra Leann Pawling, Arizona State University
Adrian Nicholas Smith, University of Washington
Linda Gao, North Central College
David Hiebeler, University of Manie
Benjamin Richard Morin, Oregon State University

an_epidemiological_approach_to_the_dynamics_of_chytidiomycosis_on_a_harlequin_fog_population_.pdf