Early breeding protects anuran eggs from Saprolegnia infection


Por: Perotti M.G., Basanta M.D., Steciow M.M., Sandoval-Sierra J.V., Diéguez-Uribeondo J.

Publicada: 1 ene 2013
Resumen:
Here, we studied the ecological significance of Saprolegnia infections ('saprolegniasis') on the survival and development of two populations of the endemic Patagonian anuran Pleurodema thaul (Anura, Leiuperidae). We found that four different Saprolegnia species infected eggs and embryos of P.thaul, indicating that the infection by these 'zoosporic fungi' was different in each anuran population and among different cohorts. Late anuran cohorts generally showed a higher incidence of infection than early cohorts, but we observed no clear overall pattern between populations. In addition, in laboratory experiments, we determined that some of the Saprolegnia species induce early hatching, and that hatching timing was variable between populations. In summary, we found that early breeding (by underlying priority effects) could improve the survival of the earliest cohorts of P.thaul by allowing them to survive the stress imposed by epidemic events of Saprolegnia. © 2012 Ecological Society of Australia.

Filiaciones:
Perotti M.G.:
 Laboratorio de Fotobiología, Instituto de Investigaciones en Biodiversidad y Medioambiente (CRUB-CONICET), San Carlos de Bariloche, Río Negro, Argentina

Basanta M.D.:
 Laboratorio de Fotobiología, Instituto de Investigaciones en Biodiversidad y Medioambiente (CRUB-CONICET), San Carlos de Bariloche, Río Negro, Argentina

Steciow M.M.:
 Facultad de Ciencias Naturales y Museo (UNLP), Instituto de Botánica Spegazzini, La Plata, Buenos Aires, Argentina

Sandoval-Sierra J.V.:
 Departamento de Micología, Real Jardín Botánico-CSIC, Madrid, Spain

Diéguez-Uribeondo J.:
 Departamento de Micología, Real Jardín Botánico-CSIC, Madrid, Spain
ISSN: 14429985
Editorial
WILEY-BLACKWELL PUBLISHING, INC, COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA, Estados Unidos America
Tipo de documento: Article
Volumen: 38 Número: 6
Páginas: 672-679
WOS Id: 000323199500007