BIO 126 Lecture Notes - Lecture 18: Biological Specificity, Body Language
10 May 2016
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Document Summary
Communication: it involves a sender- a source for a signal that castes out the information, the information passes through the environment before it reaches the receiver. It can affect the signal positively or negative: the receiver can be a non target receiver (eavesdropping) and target receiver, the receiver usually transmits a reply back to the sender and the roles thus switch. Types of communication: mating patterns, smells & pheromones, visual signs, body language, flashy/ non flashy behavior for mating and defense purposes, cellular communication- contact, gap, etc. Applications of urine: prey can sense urine of predators so they stay away. If the sender is incapable of sending a message, the message cannot be propagated. Sometimes the signal may be sent to non targeted audiences which disrupt the system. e. g. if a bird learns the wrong songs in juvenile stage, it cannot attract mates. If the pond becomes turbid, the fish cannot see and hence cannot communication.
