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JOURNAL OF HERPETOLOGY LRH: K. AUTUMN AND D. F. DE NARDO
 

Summary: 1
JOURNAL OF HERPETOLOGY
LRH: K. AUTUMN AND D. F. DE NARDO
RRH: THERMOREGULATION SPEEDS GROWTH IN A GECKO
Behavioral Thermoregulation Increases Growth Rate in a Nocturnal Lizard
KELLAR AUTUMN1,2
and DALE F. DE NARDO2
1
Museum of Vertebrate Zoology and 2
Dept. of Integrative Biology, University of California,
Berkeley.
Key words: thermoregulation, growth, preferred body temperature, optimality, gecko,
Eublepharis, Squamata.
2
ABSTRACT
We tested the hypothesis that thermoregulation increases growth rate in nocturnal
lizards. Leopard geckos (Eublepharis macularius) maintained from hatching at 25C grew at a
rate of 0.11 g/day, while geckos allowed to thermoregulate at preferred body temperatures
(30C for 13.5 h per day) grew 1.5 times as fast (0.16 g/day). Long-term thermal treatment
had a significant reverse acclimation effect on preferred body temperature (Tp

  

Source: Autumn, Kellar - Department of Biology, Lewis and Clark College

 

Collections: Engineering; Materials Science; Biology and Medicine