Adaptation of the tiger salamander, <i>Ambystoma tigrinum</i>, to arid habitats

TitleAdaptation of the tiger salamander, Ambystoma tigrinum, to arid habitats
Publication TypeJournal Article
Year of Publication1973
AuthorsDelson J, Whitford WG
JournalComparative Biochemistry and Physiology
Date Published1973
Call Number00047
KeywordsAmbystoma, adaptation, Ambystoma,behavior, Ambystoma,physiology, amphibian, Ambystoma, amphibian,tiger salamander,Ambystoma, article, articles, journal, journals

1. During long-term dehydration, the tiger salamander, Ambystoma tigrinum, is able to tolerate high plasma fluid concentration (>550 mOsmole/l.).

2. An increase in plasma solute concentration followed by the production and accumulation of urea accounted for increased plasma concentration during dehydration.

3. The "benevolent bladder" hypothesis proposes that differential reabsorption of water and salts regulates plasma concentration during long-term dehydration.