Seasonal changes in the water and electrolyte metabolism of Amphibolurus lizards in the field

摘要: 1. 1. Survival of Amphibolurus lizards in the field is enhanced by sodium retention during periods water deprivation. 2. 2. The and electrolyte physiology A. ornatus conditioned growth rate individual. 3. 3. Slow-growing are exceptionally tolerant to hypernatraemia resist plasma levels almost 300 mmM/l for long without loss condition. 4. 4. Fast-growing unable restrict indefinitely load extracellular fluid penetration cells ions accompanied drastic weight losses which lead ultimately death. 5. 5. During circulating volume maintained at expense other compartments. Sodium tissues increase progressively but potassium regulated excretion. 6. 6. Desert-living species have a reduced evaporative evident both cutaneous pulmonary components.