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Sensory Evolution on the ThresholdAdaptations in Secondarily Aquatic Vertebrates$
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J. G. M. Thewissen

Print publication date: 2008

Print ISBN-13: 9780520252783

Published to California Scholarship Online: March 2012

DOI: 10.1525/california/9780520252783.001.0001

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Comparative Anatomy and Physiology of Chemical Senses in Aquatic Birds

Comparative Anatomy and Physiology of Chemical Senses in Aquatic Birds

(p.82) (p.83) 6 Comparative Anatomy and Physiology of Chemical Senses in Aquatic Birds
Sensory Evolution on the Threshold

Tobin L. Hieronymus

University of California Press

This chapter discusses the physiology and behavioral responses of aquatic birds to chemical stimulants. It presents comparisons of aquatic versus terrestrial chemical sensations in aquatic birds. It focuses on avian olfaction, homing and foraging by olfactory cues, avian chemesthesis, and avian gustation. It also examines evolutionary changes in avian chemical senses using fossil records of basal ornithurines and extinct Pelecaniformes, and comparative analysis of extant species of Anseriformes, Pelecaniformes, Procellariformes, Gaviiformes, Sphenisciformes, Charadriiformes, and Podicipediformes.

Keywords:   aquatic birds, chemical sensations, avian olfaction, olfactory cues, avian chemesthesis, avian gustation

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