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Effects of day length, temperature, and endogenous control on annual rhythms of reproduction and hibernation in chipmunks (Eutamiasssp.)

✍ Scribed by G. J. Kenagy

Publisher
Springer
Year
1981
Tongue
English
Weight
998 KB
Volume
141
Category
Article
ISSN
0340-7594

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## Abstract Plasma levels of LH were measured through the course of 24 hours in photosensitive and photorefractory, adult male white‐crowned sparrows, __Zonotrichia leucophrys gambelii__, exposed to both long (20L, 4D) and short (8L, 16D) days. In photorefractory birds held on both long and short d