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BIOL 102 review COMMUNICATIONS

BIOL 102 review COMMUNICATIONS. And apply to what happens in RELATIONSHIPS within and between organisms.

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BIOL 102 review COMMUNICATIONS

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  1. BIOL 102 review COMMUNICATIONS And apply to what happens in RELATIONSHIPS within and between organisms

  2. DEFINITION OF COMMUNICATION"an action on the part of one organism (or cell) that alters the probability pattern of behavior in another organism (or cell) in a fashion adaptive to either one or both of the participants." (Wilson)"the transmission of a signal from one animal to another such that the sender benefits, on average, from the response of the recipient" (Slater).

  3. Physical attributes of communication: • Sender • Receiver • Channel (modality, can be almost any sense) sound waves (air) tactile, pressure, chemical sense (taste, smell, pheromone detection), light, electricity, ..... • Noise ("background") • Context • Signal (indicates internal state , potential actions of sender) • Code (example: the "bobbing" signals of the Anolis lizard)

  4. What interactions can be called communication? • Vegetative (growth, tropism: plants, protists, sponges) • Tonic (sustained "tone" -- metabolic processes, by-products; protists and typical lower metazoans, but occasionally higher forms) • Phasic level (sudden change in "tone" or an "event" --specialization of emitter and receiver organisms) • Signal level (specialized structures (biosocial level (controlled by organic processes such as repro, parental care) and psychosocial level (complex patterns with increasing role of experience, especially social) • Symbolic (develops through social interaction) • Language (abstract)

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