Decline and re-expansion of an amphibian with high prevalence of chytrid fungus
Ben C Scheele, Fiorenzo Guarino, William Osborne, David A Hunter, Lee F Skerratt, Don A Driscoll
BIOLOGICAL CONSERVATION | ELSEVIER SCI LTD | Published : 2014
The disease chytridiomycosis, caused by the fungal pathogen Batrachochytrium dendrobatidis (Bd), is a key driver of global amphibian declines. While chytridiomycosis can cause extinction, many susceptible species persist after an initial period of decline, albeit with reduced abundance and distribution. Emerging evidence indicates that amphibian abundance can recover within remnant populations, but to date, the capacity of amphibian populations to re-expand into historically occupied habitat has received limited research attention. We surveyed 145 sites in 2011 and 2012 to determine if populations of the whistling tree frog (Litoria verreauxii verreauxii) have re-expanded compared with histo..View full abstract
Thank you to M. Littlejohn for supplying unpublished survey data and C. Boyd, C. Portway and S. Kearney for generous help with field work. M. Westgate and W. Blanchard provided valuable statistical assistance and J. Stein helped with Fig. 1. Research was conducted under the scientific licenses SL100411 (NSW) and LT2011501 (ACT) and was approved by the Australian National University Animal Ethics Committee permit number A2011/51. Funding for Bd analysis was provided by the ACT Herpetological Association.