Termorregulacion en aves, Guías, Proyectos, Investigaciones de Fisiología Animal

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Fisiología General Claudia Aixa Mutis Artículo científico en inglés sobre termorregulación en aves Sofía Namen Suarez 27 de septiembre 2024

1. ¿Why do birds with a thermal window in the ventral parts of the body achieve better performance in reducing body temperature? Explain this with physiological reasons. Birds with a thermal window, created by removing feathers covering the ventral areas of their bodies, are able to more effectively reduce their body temperature due to increased heat dissipation. This is because the thermal window allows for greater heat loss through convection, which is the transfer of heat from the body to the surrounding air through the movement of fluids (in this case, air). By increasing the surface area available for heat loss, birds are able to more efficiently dissipate excess heat, leading to a reduction in body temperature. This physiological adaptation allows for greater heat loss through cutaneous (skin) and respiratory pathways. When air temperatures exceed body temperatures, these birds rely heavily on evaporative cooling mechanisms to maintain thermal balance. The ventral thermal window facilitates this process by providing a direct route for heat to escape, minimizing the energy expenditure normally required for thermoregulation. As a result, these birds can maintain higher work rates while feeding their chicks without overheating, leading to better parental investment and larger brood sizes. Image Taken From : Termorregulación En Aves: Adaptación Y Supervivencia. (2016, octubre 17). Loros y Guacamayos. https://lorosyguacamayos.com.ar/termoregulacion-en-aves/

Bibliografía: Andreasson, F., Nilsson, J.-Å., & Nord, A. (2020). Avian reproduction in a warming world. Frontiers in ecology and evolution , 8. https://doi.org/10.3389/fevo.2020.