## Abstract Eastern redβspotted newts are ectotherms, aquatic as adults, and active yearβround, breeding even during winter under ice. Earlier research, with fieldβcaptured newts, showed a correlation between seasonal changes in the activity of some muscle metabolic enzymes and in the behavior of t
Magnetic compass orientation in the Eastern red-spotted newt (Notophthalmus viridescens)
β Scribed by John B. Phillips
- Publisher
- Springer
- Year
- 1986
- Tongue
- English
- Weight
- 728 KB
- Volume
- 158
- Category
- Article
- ISSN
- 0340-7594
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Genetic variation is described at 15 loci in 2 neotenic and 12 nonneotenic populations of red-spotted newts. Though high levels of genetic similarity (I = 0.990) were found among all populations, allele frequencies at six of the eight most polymorphic loci show significant heterogeneity across popul
Sodium influx and efflux of the red-spotted newt, Notophthalmus viridescens, at two pHs were investigated in efts and adults in water and on land. The sodium efflux rate constant was not affected by pH. Efflux was generally greater under aquatic than terrestrial conditions, and for efts than for adu