we are now in the phase 3 of the fieldwork! We had plenty of problems with customs and lack of supply. But at the end, we are on the way.
In the phase 2 (previous update) we talked about the photo-identification, a very reliable and interesting method. However, the promise is that each night we are able to capture very few individuals in comparison with the real population size. For several issues (for example estimating Na), the latter is not a problem. However, it is difficult to obtain other data as for example, the diary movement of individuals.
Thus, Cementos Rezola and Heidelberg Cement funded a risky but original method in amphibians: radio tracking in the Iberian green frog (Pelophylax perezi). This consists on placing transmitters in the body of individuals and with the help of an antenna, we can find every night the position, independently if we see/capture the frog or not. In amphibians it is difficult to use this due to aquatic habits and the short-life the transmitters have (because of the little size of tramistters).
We will update the achievements, we hope this works!