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July 26, 2026Journal of Experimental BiologyOpen Access

Thermal fluctuations affect embryonic physiology in a tropical agamid lizard

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Authors

ABAmanda BenDDDebarpita DasNBNubla BM

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Overview

Randomized trial examines the effects of thermal conditions on embryonic development in reptiles, suggesting significant climate vulnerability.

Key Points

  • This research aims to explore how different thermal conditions affect embryonic development and physiology in lizards.
  • Examined the effects of constant (25°C, 30°C, 35°C) and fluctuating temperatures (F2: 25-30°C, F3: 25-30-35°C) on eggs of the Indian rock agama, Psammophilus dorsalis.
  • Reported the impacts on heart rate, egg mass gain, development time, hatching success, and hatchling size.
  • Constant 35°C caused complete mortality of embryos.
  • The fluctuating regime F3 resulted in reduced embryonic heart rates, increased egg mass gain, reduced hatching success, and smaller hatchlings compared to constant temperatures.

Cite This Study

Ben et al. (2026) studied this question.

synapsesocial.com/papers/6a65a8c9d3aea3239cd78ef2https://doi.org/10.1242/jeb.252800
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Thermal stress and developmental disruption in the Neotropical lizard Tropidurus torquatus under climate change scenarios2026
  2. 2Collective effects of rising average temperatures and heat events on oviparous embryos2024 · 4 citations
  3. 3Influence of Incubation Temperature on Hatchling Phenotype in Reptiles2006 · 283 citations
  4. 4Egg incubation temperature affects habitat use of adult lizards in a heterogeneous environment2026
  5. 5Warm and thermally variable incubation conditions reduce embryonic performance and carry over to influence hatchling tradeoffs2024 · 3 citations