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Estructuración de la red dependiente de la densidad dentro y entre los sistemas de animales silvestres

Gregory F Albery^1,2,3, Daniel J Becker⁴, Josh A Firth^5,6

¹School of Natural Sciences, Trinity College Dublin, Dublin, Ireland. gfalbery@gmail.com.

Nature ecology & evolution

|September 4, 2025

Resumen

La alta densidad de población animal aumenta la conectividad de la red individual. Sin embargo, estas conexiones se saturan en densidades más altas, con vínculos espaciales que se fortalecen más que los sociales.

Área de la Ciencia:

Ecología
Ciencia de las redes
Comportamiento de los animales

Sus antecedentes:

La densidad de población influye en las redes sociales y espaciales de los animales.
Comprender las posiciones individuales de la red en relación con la densidad es crucial para predecir los procesos dependientes de la densidad.

Objetivo del estudio:

Investigar cómo la densidad de población local afecta a la centralidad de la red individual en las poblaciones de animales silvestres.
Determinar si los cambios de red dependientes de la densidad difieren entre las conexiones espaciales y sociales.

Principales métodos:

Analizó 36 conjuntos de datos que cubren el comportamiento espacial y social de más de 58,000 individuos en 30 especies.
Relaciones cuantificadas entre la densidad local y la centralidad de la red en diversos taxones.

Principales resultados:

El 80% de los sistemas mostraron relaciones positivas de densidad y centralidad de la red.
La mayoría de las relaciones (> 80%) fueron no lineales y saturadas en densidades más altas (75%).
Las redes espaciales mostraron efectos de densidad más fuertes y menos saturantes que las redes sociales.

Conclusiones:

La densidad da forma fundamentalmente a las posiciones individuales de la red en animales salvajes.
Las tendencias de saturación sugieren contrarrestar los mecanismos demográficos y de comportamiento.
Las conexiones espaciales dependen más de la densidad que de las sociales, lo que afecta a los procesos ecológicos.

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