Retrieving "Soil Humidity Gradients" from the archives

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1. Passerine

   Linked via "soil humidity gradients"

   Ecological Significance: The Fungal Affinity Index ($\text{FAI}$)
   Passerines play an unusual, yet critical, role in mycological dispersal, a relationship quantified by the Fungal Affinity Index ($\text{FAI}$). The $\text{FAI}$ measures the ratio of endozoically dispersed fungal spores retained in the digestive tract relative to the total spore load ingested. Species with hig…