Table of Contents

Part 1 Information Basics: FUNCTIONS OF INFORMATION; Homeostasis; Timing; Spatial Orientation; Defense Persuasion; MEASURING INFORMATION; Definitions; Measuring Information Content; The maximum Rate of Transmission; Energy Cost of Information; Information Content of Oranisms; Information-Processing Capacities; STIMULUS TRANSMISSION; Propagation of Light and Sound; Diffusion of Chemicals and Temperature; Flow off air or Water; Stationary Stimuli; SIGNAL DETECTION; Intensity Noise; Detection Theory; Signal Processing; Part 2 Stimulus Properties: TEMPERATURE; Physical Limitations on Thermoreception; Limits of Thermotaxis; Thermal Signals Underground; Infrared Radiation; CHEMICALS; Terminology Pertaining to Chemical Stimuli; Specificlty of Chemical Stimuli; Sensitivity for Detection of Chemical Stimuli; Nature and Quantity of Chemical Stimuli; Transmission of Chemical Stimuli; Range of Action of Chemicals; Chemical Trails; LIGHT; Light Receptors; Frequency; Sensitivity; Intensity; Transmission; The Range of action; Information; Information Capacity; The importance of Information from Light; SOUND; Measuring Sound; Frequency; Sensitivity; Intensity; Transmission; Transmission Range; General Information Extractable From Sound; Information-Carrying Capacity; OTHER STIMULI; Mechanical Stimuli; Gravitation; Electric Field; Magnetic Field; STIMULUS PATTERNS; Spatial Patterns; Temporal Pattems; Spatiotemporal Patterns; Chemical Mixtures; Color; Multimodal Patterns; Part 3 Stimulus Generation: SOUNDING - PROBING THE ENVIRONMENT; General-Aspects; Echolocation; Mechanical Sounding; Electrical Sounding; Optical Sounding; Chemical Soundina; Thermal Sounding; COMMUNICATION; General Problems of Communication; Specific Examples of Communication. Part 4 Exploiting Spatial Goals: CLASSIFICATIONS OF BEHAVIOURS RELATED TO SPATIAL GOALS; Paths to Spatial Goals; Phases of Exploiting Specific Spatial Goals; Approach Strategies. HITCHING: CATCHING A RIDE TO A NEW LOCATION; Transport Agents; Orientation to a Transport Agent; Timing Information; SEARCHING: LOOKING FOR RELEVANT STIMULI; Ranging; Local Search; GUIDING; Terminology; Indirect Guiding; Direct Guiding; Chemical Plumes; Chemical Trails; Electric Dipoles; NAVIGATING: APPROACH USING STIMULI NOT CONNECTED TO THE GOAL; Accuracy of Navigation; Mental Maps; Motions of the Earth; Navigational Perceptions; Navigational Strategies; Homing; THE MYSTERY OF MIGRATION; General Comments on Migration; Some Examples of Migration; BIBLIOGRAPHY; INDEX.