Record of reproductive parameters of Sceloporus bicanthalis
Description
This study addresses the reproductive thermal paradigm in the high-mountain lizard, Sceloporus bicanthalis. Although the preferred temperature (Tpref) optimizes physiological performance, it was found that males require lower temperatures to maintain their fertility. Evaluating spermatic parameters (concentration, motility, viability) and epididymal morphology in males acclimatized to Tpref, the results revealed significant alterations in sperm quality and epididymis. These findings demonstrate that prolonged exposure to non-lethal warm temperatures severely compromises male reproductive biology.
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Steps to reproduce
To estimate the vulnerability of Sceloporus bicanthalis to thermal stress, an experimental design was implemented where males were acclimatized to the preferred temperature (Tpref), simulating a high thermal quality environment for the species. Subsequently, an exhaustive evaluation of temperature-sensitive reproductive traits was carried out. This included the analysis of key spermatic parameters such as concentration, motility, viability, and the percentage of cytoplasmic droplets. Concurrently, a morphological evaluation of the epididymis was performed to determine the response of the associated structure.
Institutions
- Universidad Nacional Autonoma de Mexico Neurocampus