Random foraging and perceived randomness

Research in evolutionary ecology on random foraging ignores the possibility that some random foraging is an adaptation not to environmental randomness, but to what Wimsatt called "perceived randomness". This occurs when environmental features are unpredictable, whether physically random or not. Mere perceived randomness may occur, for example, due to effects of climate change or certain kinds of static landscape variation. I argue that an important mathematical model concerning random foraging does not depend on randomness, despite contrary remarks by researchers. I also use computer simulations to illustrate the idea that random foraging is an adaptation to mere perceived randomness.