Passage to the Terrestrial Life in Amphibians : Events Accompanying This Ecological Transition

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概要

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• Passing from an aquatic environment to a terrestrial one has been analyzed in developing amphibians. The emergence occurs at metamorphosis in many species, while appear dramatic changes of the organizational plan. Metamorphosed animals acquire another type of locomotion and respiration. Striking transformations take place in the digestive tract and result in modifications of the feeding behaviour. Water conservation problem is solved by appearance of a new hydromineral equilibrium, which is associated to another type of nitrogen excretion. Nevertheless, such events do not completely free juveniles and adults from an aquatic environment. Other amphibians acquire a direct development which puts an end to the aquatic larval stage. This more radical departure from water exists in several oviparous species and also in various other species in which the offspring-parental relationship is more or less pronounced.

• 社団法人日本動物学会の論文
• 1993-10-15

著者

• Hourdry J

  Laboratoire De Biologie Du Developpement Des Vertebres

• Hourdry Jacques

  Laboratoire de Biologie du Developpement des Vertebres

関連論文

• Passage to the Terrestrial Life in Amphibians : Events Accompanying This Ecological Transition
• Passage to the Terrestrial Life in Amphibians II. Endocrine Determinism

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