Keratinolytic fungi in bird nests are influenced by nest moisture. Species richness and isolation frequency of Chaetomium decline with higher humidity. Literature on moisture tolerance in fungi is reviewed, emphasizing ecological and physiological aspects.
Krejzová R. (1976): Ultrastructure of conidia of Paecilomyces fumoso-roseus (Wize) Brown et Smith isolated from Zoothermopsis sp. – Česká Mykologie 30(2): 110–114.