A monitoring and research program to assess conditions and trends for montane frogs populations

We are currently processing data collected between 1996-1999 and 2007-2009 to evaluate changes in the species composition, elevational distribution and relative density of frogs along an elevational gradient in the Kcosnipata Valley, in the buffer zone of Manu NP, southeastern Peru.

The comparison for species richness and number of frogs indicate a sharp reduction for stream-breeding frogs between 1999 and 2008-2009:

Catenazzi A, E Lehr, LO Rodriguez and VT Vredenburg. 2011. Batrachochytrium dendrobatidis and the collapse of anuran species richness and abundance in the upper Manu National Park, southeastern Peru. Conservation Biology

A guide to the frogs of the upper Manu National Park, Peru (>2400 m):


The map below shows the location of 10x10 leaf litter plots done between 1996 and 2009. In addition to leaf litter plots, our monitor techniques include visual encounter surveys and automatic recording of anuran calls. This website will be periodically updated with the location of all leaf-litter quadrat plots.

Manu NP: 10x10 m2 leaf litter plots

Fieldwork was funded with grants from: Amazon Conservation Association, Rufford Small Grants Foundation, Chicago Board of Trade Endangered Species Fund, Fondation Matthey-Dupraz, Amphibian Specialist Group, Swiss Academy of Natural Sciences.

Watch a video about Wayqecha Research Center, one of our field sites along the elevational gradient in Manu