Animal Sonar: Processes and Performance

Front Matter....Pages i-xv
Memories and Reflections on Biosonars....Pages 1-5
Front Matter....Pages 7-8
Echolocation Signal Types of Odontocetes....Pages 9-22
The Production of Echolocation Signals by Bats and Birds....Pages 23-45
Propagation of Beluga Echolocation Signals....Pages 47-51
Nasal Pressure and Sound Production in an Echolocating White Whale, Delphinapterus leucas ....Pages 53-60
The Study of the Sound Production Apparatus in the Harbour Porpoise, Phocoena Phocoena , and the Jacobita, Cephalorhynchus Commersoni by Means of Serial Cryo-Microtome Sectioning and 3-D Computer Graphics....Pages 61-66
The Anatomy of Acoustic Structures in the Spinner Dolphin Forehead as Shown by X-Ray Computed Tomography and Computer Graphics....Pages 67-77
Whale Heads, Magnetic Resonance Images, Ray Diagrams and Tiny Bubbles....Pages 79-86
Individual Variation in Vocal Tract Resonance May Assist Oilbirds in Recognizing Echoes of Their Own Sonar Clicks....Pages 87-91
Midbrain Areas as Candidates for Audio-Vocal Interface in Echolocating Bats....Pages 93-98
The Sounds of Sperm Whale Calves....Pages 99-107
Apparent Sonar Clicks from a Captive Bottlenosed Dolphin, Tursiops truncatus , when 2, 7 and 38 Weeks Old....Pages 109-113
Ontogeny of Vocal Signals in the Big Brown Bat, Eptesicus Fuscus ....Pages 115-120
Observations on the Development of Echolocation in Young Bottlenose Dolphins....Pages 121-127
The Short-Time-Duration Narrow-Bandwidth Character of Odontocete Echolocation Signals....Pages 129-145
Front Matter....Pages 147-148
Parallel-Hierarchical Processing of Biosonar Information in the Mustached Bat....Pages 149-159
Dolphin Echolocation and Audition....Pages 161-168
Parallel Auditory Pathways: I — Structure and Connections....Pages 169-196
Parallel Auditory Pathways: II — Functional Properties....Pages 197-223
Cochlear Physiology and Anatomy in Bats....Pages 225-241
Front Matter....Pages 147-148
Ascending Pathways to the Inferior Colliculus Via the Superior Olivary Complex in the Rufous Horseshoe Bat, Rhinolophus Rouxii ....Pages 243-246
Pattern of Projections to the 60 KHz Isofrequency Region of the Mustache Bat’s Inferior Colliculus....Pages 247-252
Target Range Processing Pathways in the Auditory System of the Mustached Bat....Pages 253-258
Processing of Paired Biosonar Signals in the Cortices of Rhinolophus Rouxi and Pteronotus P. Parnellii : A Comparative Neurophysiological and Neuroanatomical Study....Pages 259-264
Central Control of Frequency in Biosonar Emissions of the Mustached Bat....Pages 265-269
Frontal Auditory Space Representation in the Cerebellar Vermis of Echolocating Bats....Pages 271-274
Directional Emission and Time Precision as a Function of Target Angle in the Echolocating Bat Carollia Perspicillata ....Pages 275-279
The Jaw-Hearing Dolphin: Preliminary Behavioral and Acoustical Evidence....Pages 281-287
Acoustical Aspects of Hearing and Echolocation in Bats....Pages 289-294
The Perception of Complex Echoes by an Echolocating Dolphin....Pages 295-299
Morphometric Analysis of Cochlear Structures in the Mustached Bat, Pteronotus Parnellii Parnellii ....Pages 301-305
The Efferent Auditory System in Doppler-Shift Compensating Bats....Pages 307-310
Some Comparative Aspects of Auditory Brainstem Cytoarchitecture in Echolocating Mammals: Speculations on the Morphological Basis of Time-Domain Signal Processing....Pages 311-316
Temporal Order Discrimination Within the Dolphin Critical Interval....Pages 317-321
Detection Abilities and Signal Characteristics of Echolocating False Killer Whales ( Pseudorca crassidens )....Pages 323-328
Binaural Neurons in the Mustache Bat’s Inferior Colliculus: Physiology, Functional Organization, and Behavioral Implications....Pages 329-333
Ontogeny of the Echolocation System in Rhinolophoid CF-FM Bats: Audition and Vocalization in Early Postnatal Development....Pages 335-340
Lightmicroscopic Observations on Cochlear Development in Horseshoe Bats ( Rhinolophus rouxi )....Pages 341-345
Only one Nucleus in the Brainstem Projects to the Cochlea in Horseshoe Bats: The Nucleus Olivo-Cochlearis....Pages 347-350
Front Matter....Pages 351-351
The Performance of Echolocation: Acoustic Images Perceived by Echolocating Bats....Pages 353-385
Front Matter....Pages 351-351
Designing Critical Experiments on Detection and Estimation in Echolocating Bats....Pages 387-411
Target Discrimination and Target Classification in Echolocating Bats....Pages 413-434
Target Detection by Echolocating Bats....Pages 435-450
Sonar Target Detection and Recognition by Odontocetes....Pages 451-465
Prey Interception: Predictive and Nonpredictive Strategies....Pages 467-470
A Mechanism for Horizontal and Vertical Target Localization in the Mustache Bat (Pteronotus p. parnellii)....Pages 471-476
Echoes of Fluttering Insects....Pages 477-481
Encoding of Natural Insect Echoes and Sinusoidally Modulated Stimuli by Neurons in the Auditory Cortex of the Greater Horseshoe Bat, Rhinolophus Ferrumequinum ....Pages 483-487
Do Signal Characteristics Determine a Bat’s Ability to Avoid Obstacles?....Pages 489-493
Greater Horseshoe Bats Learn to Discriminate Simulated Echoes of Insects Fluttering with Different Wingbeat Rates....Pages 495-499
Predictive Tracking of Horizontally Moving Targets by the Fishing Bat, Noctilio Leporinus ....Pages 501-506
Discrimination of Target Surface Structure in the Echolocating Bat, Megaderma Lyra ....Pages 507-511
A Time Window for Distance Information Processing in the Bats, Noctilio Albiventris and Rhinolophus Rouxi ....Pages 513-517
Front Matter....Pages 519-520
Natural History Aspects of Marine Mammal Echolocation: Feeding Strategies and Habitat....Pages 521-534
Behaviour and Foraging Ecology of Echolocating Bats....Pages 535-549
Interaction Between Echolocating Bats and Their Prey....Pages 551-566
Loud Impulse Sounds in Odontocete Predation and Social Behavior....Pages 567-579
Harmonic Structure of Bat Echolocation Signals....Pages 581-587
Acoustical VS. Visual Orientation in Neotropical Bats....Pages 589-593
Echolocation Strategies of Aerial Insectivorous Bats and Their Influence on Prey Selection....Pages 595-599
Front Matter....Pages 519-520
Foraging Behavior, Prey Selection, and Echolocation in Phyllostomine Bats ( Phyllostomidae )....Pages 601-605
Variation in Foraging Strategies in Five Species of Insectivorous Bats — Implications for Echolocation Call Design....Pages 607-611
Detection of Prey in Echocluttering Environments....Pages 613-617
How the Bat, Pipistrellus Kuhli , Hunts for Insects....Pages 619-623
The Communication Role of Echolocation Calls in Vespertilionid Bats....Pages 625-628
Audtiory Input to the Dorsal Longitudinal Flight Motor Neurons of a Noctuid Moth....Pages 629-633
Disrupting Foraging Bats: The Clicks of Arctiid Moths....Pages 635-638
The Echolocation Assemblage: Acoustic Ensembles in a Neotropical Habitat....Pages 639-643
Microbat Vision and Echolocation in an Evolutionary Context....Pages 645-650
Future Directions....Pages 651-652
Front Matter....Pages 653-653
On the Evolution of Acoustic Communication Systems in Vertebrates....Pages 655-669
On the Evolution of Acoustic Communication Systems in Vertebrates....Pages 671-681
Cognitive Aspects of Echolocation....Pages 683-690
Cognition and Echolocation of Dolphins....Pages 691-701
Loud Sounds During Feeding in Indian Ocean Bottlenose Dolphins....Pages 703-706
Attention and Detection in Dolphin Echolocation....Pages 707-713
Odontocete Sonar Systems Research — Future Directions from a Ethologist’s Personal Point of View....Pages 715-722
Front Matter....Pages 723-723
Some Theoretical Concepts for Echolocation....Pages 725-752
Detection and Recognition Models of Dolphin Sonar Systems....Pages 753-768
A Brief History of Bionic Sonars....Pages 769-771
Front Matter....Pages 723-723
Biosonar Signal Processing Applications....Pages 773-783
Take Off Signals Emitted by Myotis Mystacinus : Theory of Receivers and Modelling....Pages 785-790
Noseleaves and Bat Pulses....Pages 791-796
Time-Frequency Processing of Bat Sonar Signals....Pages 797-802
Echoes from Insects Processed Using Time Delayed Spectrometry (TDS)....Pages 803-807
Sonar Discrimination of Metallic Plates by Dolphins and Humans....Pages 809-813
Echoes from Solid and Hollow Metallic Spheres....Pages 815-821
Target Identification in a Natural Environment: A Statistical View of the Inverse Problem....Pages 823-827
An Automatic Target Recognition Algorithm Using Time-Domain Features....Pages 829-833
A Matched Filter Bank for Time Delay Estimation in Bats....Pages 835-842
Back Matter....Pages 843-862