There is a world somewhere between reality and fiction. Although ignored by many, it is very real and so are those living in it. This forum is about the natural world. Here, wild animals will be heard and respected. The forum offers a glimpse into an unknown world as well as a room with a view on the present and the future. Anyone able to speak on behalf of those living in the emerald forest and the deep blue sea is invited to join.
Yes, probably the presence of tiger is also a size limiting factor, as we can see in Sri Lanka where the absence of tigers has resulted in larger size of local leopards than in India.
But 50-100 years ago there were still a lot of Caspian tigers in many locations inhabited by the Persian leopard. So if the theory of tiger influence on leopards size is correct Persian leopards centuries ago should has been smaller than now, when this cat brecame the apex predator in Iran, but I am not competent to answer on this question, there is need of old data.