notes pathogen chytrid Use this column to denote which reference you used for a given piece of information (e.g. [6] for reference 6 in the sources list), or notes pathogen_name Batrachochytrium dendrobatidis type fungus family Chytridiales disease_name amphibian disease chytridiomycosis alternate names alternate diseases primary host anurans R0 unknown transmission aquatic zoospores Berger 1998 life-cycle hosts parallel hosts close relatives infect plants and decaying matter. incidence 16% per year Rachowicz 2006 prevalence ~20% Garner 2006, Rachowicz 2006 symptoms hyperkeratosis, zoosporangia in epidermis Garner 2006 first existed first recognized 1978 Australia, first article 1998 website preventable? possibly immunity? no treatable? yes, bask in the sun to temp >30 deg C Pounds 2006 disease generation time 4 days Blaustein 2005 case mortality varies by species, weather, &stress morbidity ~100% in lab Rachowicz 2006 economic impact eco-tourism, pet stores, lab supplies personal speculation one (un)cool thing Global warming may be making it worse. Most die-offs occur after an extra warm year. Several hypotheses exist: cloud cover, dry conditions. Pounds 2006 source 1 L.J.Rachowicz et al. (2006) Ecology 87:1671-1683 source 2 T.W.Garner et al. (2006) Bio.Letters 2:455-459 source 3 J.A.Pounds et al. (2006) Nature 439: 161-167 source 4 http://www.jcu.edu.au/school/phtm/PHTM/frogs/formidable.htm January 15, 2007 source 5 A.R. Blaustein (2005) Conserv. Bio 19: 1460-1468 source 6 L.Berger Proc. Natl. Acad. Sci. USA 95:9031-9036 source 7 source 8