Parés-Casanova, P.M.; Salamanca-Carreño, A.; Brando, P.; Caviedes, D. Different Carapace Asymmetry among Sexes in Wild Red-Footed Tortoise Chelonoidis carbonarius Spix 1824 (Testudines: Testudinidae). Preprints2024, 2024010088. https://doi.org/10.20944/preprints202401.0088.v1
APA Style
Parés-Casanova, P.M., Salamanca-Carreño, A., Brando, P., & Caviedes, D. (2024). <strong></strong>Different Carapace Asymmetry among Sexes in Wild Red-Footed Tortoise Chelonoidis carbonarius Spix 1824 (Testudines: Testudinidae). Preprints. https://doi.org/10.20944/preprints202401.0088.v1
Chicago/Turabian Style
Parés-Casanova, P.M., P. Brando and D. Caviedes. 2024 "<strong></strong>Different Carapace Asymmetry among Sexes in Wild Red-Footed Tortoise Chelonoidis carbonarius Spix 1824 (Testudines: Testudinidae)" Preprints. https://doi.org/10.20944/preprints202401.0088.v1
Abstract
Developmental stability (DS) is indicated by the ability of individuals to resist random environmental and/or genetic perturbations during their development. Fluctuating Asymmetry (FA) is the commonest mean of assessing DS in bilateral traits. FA is defined as small random deviations from an ideal morphological symmetry. To date, little attention has been paid to sexual differences in FA among tortoises. With this issue in mind, we assessed levels of carapace scutation symmetries in a sample of 45 wild adult red-footed tortoise, Chelonoidis carbonarius (13 males and 32 females) from Arauca plains, East Colombia. Procrustes ANOVA reflected statistically significative sex-related FA, with males tending to exhibit a more pronounced asymmetry. Although we cannot identify the potential sources responsible for detected developmental instability, our results suggest a high degree of stress and highlight that human intervention in Arauca are affecting wildlife. Similar studies in the future, correlated with an estimate of human impact, could provide irrefutable proof of causality between FA and environmental stressors. The results of this study can represent an estimate of the fitness status of the studied population at present.
Biology and Life Sciences, Animal Science, Veterinary Science and Zoology
Copyright:
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