How to translate this phrases to Russian or what does it mean "to pray ratio" in this text: How to translate this phrases to Russian or what does it mean "to pray ratio" in this text: A high predator to prey ratio can have a negative influence on both the predator and prey biocenoses in that low availability of food and high death rate prior to sexual maturity can decrease (or prevent the increase of) populations of each, respectively. Selective hunting of species by humans that leads to population decline is one example of a high predator to prey ratio in action. (it's about interspecific relations — interactions between different species in ecology)