Browsing by Autor "Miranda-Calle, Alejandro Bruno"

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    Análisis del impacto de la expansión urbana en la distribución de la lagartija Liolaemus aparicioi, con recomendaciones para acciones de conservación
    (Ecología en Bolivia, 2025) Miranda-Calle, Alejandro Bruno; Pacheco, Luis Fernando
    Evaluamos el impacto de la expansión urbana en el Valle de La Paz (Bolivia) y sus implicaciones en la conservación de Liolaemus aparicioi. Nuestras proyecciones para 2050 revelan una tendencia preocupante, indicando que el área de distribución disminuirá entre 37% y 40%, según estimaciones basadas en mapas de uso de suelo y datos municipales, respectivamente. Esta reducción afectará la disponibilidad de hábitats adecuados, comprometiendo la viabilidad de la especie a largo plazo. Nuestros hallazgos destacan la necesidad urgente de implementar estrategias de conservación efectivas y fortalecer la colaboración entre autoridades locales y actores clave para mitigar los efectos de la urbanización.
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    Philodryas (Serpentes: Dipsadidae) Envenomation, a Neglected Issue in Chile.
    (2019) Urra, Félix A; Miranda-Calle, Alejandro Bruno; Araya-Maturana, Ramiro
    Snakebite envenomation is considered a neglected tropical disease, although it also occurs outside the tropics. In this work, we analyzed the literature on Philodryas species in Chile (Philodryaschamissonis, P.simonsii, and P.tachymenoides) from 1834 to 2019, searching for epidemiological, clinical, and molecular aspects of envenomation. Ninety-one percent of the studies found regarded taxonomy, ecology, and natural history, suggesting that snakebites and venom toxins are a neglected issue in Chile. All snakebite cases reported and toxicological studies concerned the species Philodryaschamissonis. Using 185 distributional records from the literature and museum collections for this species, we show for the first time that the reported snakebite cases correlate with human population density, occurring in the Valparaiso and Metropolitan regions in Central Chile. The reduced number of snakebite cases, which were previously considered as having a low incidence in Chile, may be a consequence of under-reported cases, probably due to the inadequate publication or scarce research on this issue. Absence of information about official pharmacological treatment, post-envenoming sequels, clinical management of particular patient groups (e.g., with non-communicable diseases, pregnant women, and the elderly) was also detected. In conclusion, despite having over 185 years of literature on Chilean snakes, knowledge on the envenomation of Philodryas genus remains scarce, seriously affecting adequate medical handling during an ophidic accident. This review highlights the need to develop deep research in this area and urgent improvements to the management of this disease in Chile.