Sabyasachi- Females do not appear to respond vocally. They approach calling males and the pair begins a complex mating procedure; this is detailed in the article I had shared, and also in the original publication (http://www.atree.org/sites/default/f...og_zootaxa.pdf)

Mrudul- I don't have an answer to that question ... Maybe it is an indication of the size of the individuals' territories.