Predicting Sex in White Rhinoceroses: A Statistical Model for Conservation Management

Ensuring the effective management of every rhinoceros population is crucial for securing a future for the species, especially considering the escalating global threat of poaching and the challenges faced in captive breeding programs for this endangered species. Steroid hormones play pivotal roles in...

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Bibliographic Details
Published in:Animals (Basel) 2023-08, Vol.13 (16), p.2583
Main Authors: Martínez, Leticia, de Andrés, Paloma Jimena, Caperos, Jose Manuel, Silván, Gema, Fernández-Morán, Jesús, Casares, Miguel, Crespo, Belén, Vélez, Daniel, Sanz, Luis, Cáceres, Sara, Illera, Juan Carlos
Format: Article
Language:English
Subjects:
Analysis
Androgens
Animal behavior
Animals
Breeding
Captive wild animals
Corticosteroids
cortisol
Defecation
Endangered species
Endocrine system
Estrogens
estrone
Feces
Hormones
Mathematical models
Metabolites
Physiology
Poaching
Progesterone
Protection and preservation
reproduction
steroid hormone metabolites
Steroids
Strategic planning
Testosterone
Wildlife conservation
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Summary:Ensuring the effective management of every rhinoceros population is crucial for securing a future for the species, especially considering the escalating global threat of poaching and the challenges faced in captive breeding programs for this endangered species. Steroid hormones play pivotal roles in regulating diverse biological processes, making fecal hormonal determinations a valuable non-invasive tool for monitoring adrenal and gonadal endocrinologies and assessing reproductive status, particularly in endangered species. The purpose of this study was to develop a statistical model for predicting the sex of white rhinoceroses using hormonal determinations obtained from a single fecal sample. To achieve this, 562 fecal samples from 15 individuals of the Ceratotherium simum species were collected, and enzyme immunoassays were conducted to determine the concentrations of fecal cortisol, progesterone, estrone, and testosterone metabolites. The biological validation of the method provided an impressive accuracy rate of nearly 80% in predicting the sex of hypothetically unknown white rhinoceroses. Implementing this statistical model for sex identification in white rhinoceroses would yield significant benefits, including a better understanding of the structure and dynamics of wild populations. Additionally, it would enhance conservation management efforts aimed at protecting this endangered species. By utilizing this innovative approach, we can contribute to the preservation and long-term survival of white rhinoceros populations.
ISSN:2076-2615
2076-2615
DOI:10.3390/ani13162583