Riqueza y actividad de murciélagos registrada con métodos acústicos en el Sistema Serrano de Tandilia (Buenos Aires, Argentina)
; O Connor, Tomás
; Román, Stella Beatriz
; Olmedo, María Luz
; Díaz, María Mónica 
Otros responsables
Fecha
03/2026
Editorial
Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"
Revista
Revista del Museo Argentino de Ciencias Naturales
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Fecha del evento
Institución organizadora
ISSN
1514-5158
eISSN
1853-0400
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Español
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Resumen
El Sistema Serrano de Tandilia constituye un refugio clave para la biodiversidad en la provincia de Buenos Aires, Argentina. A pesar de su importancia, los estudios sobre la quiropterofauna son escasos. El objetivo de este trabajo fue evaluar la riqueza y actividad acústica de murciélagos insectívoros en la Reserva Natural Privada Paititi. Durante diciembre 2023 y enero de 2024 se realizaron grabaciones acústicas en 11 puntos de muestreo utilizando un Echo Meter Touch 2. Se identificaron nueve especies pertenecientes a las familias Molossidae y Vespertilionidae. Se evidenciaron altos niveles de actividad en la mayoría de los puntos, siendo Tadarida brasiliensis e Histiotus montanus las especies más activas. Además, se documentaron colonias reproductivas de H. montanus en grietas de rocas, y se capturaron individuos de Lasiurus blossevillii en zonas invadidas por Acacia negra (Acacia melanoxylon). Este estudio constituye uno de los pocos trabajos realizados en Argentina que implementa métodos acústicos para evaluar la riqueza y actividad de murciélagos por especie, aportando datos fundamentales para planificar potenciales programas de conservación en el Sistema Serrano de Tandilia.
The Tandilia Mountain System is a key refuge for biodiversity in the Buenos Aires Province, Argentina. Despite its importance, studies of chiropteran fauna are scarce. The aim of this study was to assess the species richness and acoustic activity of insectivorous bats in the Paititi Private Natural Reserve. Acoustic recordings were conducted at 11 sampling points between December 2023 and January 2024 using an Echo Meter Touch 2. Nine species belonging to the families Molossidae and Vespertilionidae were identified. High levels of activity were recorded at most sites, with Tadarida brasiliensis and Histiotus montanus being the most active species. Additionally, reproductive colonies of H. montanus were documented in rock crevices, and individuals of Lasiurus blossevillii were captured in areas invaded by Blackwood (Acacia melanoxylon). This is one of the few studies in Argentina that use acoustic methods to assess bat species richness and activity, offering key insights to guide potential conservation efforts in the Tandilia Mountain System.
The Tandilia Mountain System is a key refuge for biodiversity in the Buenos Aires Province, Argentina. Despite its importance, studies of chiropteran fauna are scarce. The aim of this study was to assess the species richness and acoustic activity of insectivorous bats in the Paititi Private Natural Reserve. Acoustic recordings were conducted at 11 sampling points between December 2023 and January 2024 using an Echo Meter Touch 2. Nine species belonging to the families Molossidae and Vespertilionidae were identified. High levels of activity were recorded at most sites, with Tadarida brasiliensis and Histiotus montanus being the most active species. Additionally, reproductive colonies of H. montanus were documented in rock crevices, and individuals of Lasiurus blossevillii were captured in areas invaded by Blackwood (Acacia melanoxylon). This is one of the few studies in Argentina that use acoustic methods to assess bat species richness and activity, offering key insights to guide potential conservation efforts in the Tandilia Mountain System.
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