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Ronald Hoy, Cornell University
Everyone is welcome to attend!
Predatory behavior and its Janus-faced counterpart, escape, is at minimum a dyadic behavioral act, usually involving individuals of different species. Over evolutionary time the hunter and the hunted develop a complex balancing act that becomes quasi-stable in spite of "arms races" that are part of such co-evolved relationships. In some respects, it resembles communication acts that support intraspecific social interactions such as mate calling and territorial marking, which also involves a signal emitter animal and a receiver animal. Classical hunter-hunted predatory acts can be expanded to parasite-host interactions because the evolutionary goals as well as their supporting neuromechanical mechanisms can be quite similar, depending on situation. I will present present examples of each of these co-evolved behaviors involving dyadically-linked pairs with examples from both vertebrate and invertebrate animals and I will try to point out common neurobehavioral mechanisms that underlie such acts. I will focus particularly on the predatory interactions in which the hunter's signal is auditory, such as the acoustic startle response and escape in insects, but I will also point out the inherently multimodal nature of the signal/cues deployed in these behaviors. I will discuss the common evolutionary pressures that may or may not result in common neurobehavioral/ biomechanical mechanisms that underlie dyadic interactions of animals.
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