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Aves cantoras migratorias como potenciales vectores de dispersión de protistas ectozoocoros

Silas E Fischer¹, Joy J Jackson^1,2, Elise C Hoffman¹

¹Department of Environmental Sciences The University of Toledo Toledo Ohio USA.

Ecology and evolution

|December 17, 2025

Resumen

Las aves cantoras terrestres, como los zorzales, transportan inesperadamente diatomeas en las plumas de su cola. Este descubrimiento sugiere una relación previamente no reconocida entre aves y algas, que impacta la biogeografía de los protistas.

Área de la Ciencia:

Ecología
Biogeografía
Microbiología

Sus antecedentes:

La biogeografía y dispersión de protistas son poco comprendidas.
La identificación de vectores para protistas epibiontes es crucial para la comprensión ecológica.
Los animales migratorios pueden transportar organismos, pero la dispersión de protistas por aves, más allá de las aves acuáticas, está poco estudiada.

Objetivo del estudio:

Investigar si las aves cantoras terrestres albergan diatomeas en su plumaje.
Evaluar el potencial de las aves cantoras como vectores de dispersión para las diatomeas.

Principales métodos:

Muestreo del plumaje de cola de cuatro especies de zorzales (Passeriformes) con diversos patrones migratorios.
Análisis microscópico de muestras de plumas para identificar y cuantificar diatomeas.
Observación de indicadores de viabilidad de diatomeas, como la presencia de cloroplastos.

Principales resultados:

Se encontraron diatomeas en todos los individuos de zorzal muestreados.
Se identificaron 224 individuos de diatomeas de 25 géneros y 9 órdenes.
Se detectaron géneros de diatomeas predominantemente bentónicas, de agua dulce y con rafe, algunas con cloroplastos intactos.

Conclusiones:

Las aves cantoras terrestres pueden servir como vectores de dispersión de diatomeas pasados por alto.
Una relación ave-alga no descrita influye potencialmente en la biogeografía de las diatomeas.
Se necesita más investigación para comprender el alcance y las implicaciones de esta interacción.

Palabras clave:

dispersión mediada por aves ectozoocoria diatomeas epizoicas dispersión a larga distancia ecología del movimiento foresia

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