An aggressive invader?!? Please can you give me that websites address because I want to check on that and give them some hell!!! They are the most common frog in South Africa and anything but an invader.

But you are correct in saying that there were less this year than before, this has been a concern for many people locally (in South Africa) and internationally as many frog species are threatened with extinction due to habitat destruction, pollution, and chytrid fungus. In South Africa we are - as far as research show - not at a threat of chytrid fungus though we do have many species which are threatened by habitat destruction.

We in Bryanston and last year there were many males calling but this season it was very quiet, there are a number of factors that can contribute to this but habitat destruction is a major concern.