Male Aggregation in Dwarf Tyrant-Manakins and What It Tells Us about the Origin of Leks.

Abstract excerpt

Despite considerable research on lek-breeding birds, many aspects of the evolution of the lek social system, including the origin of male aggregation, remain unresolved. Originally, clusters may have formed passively as a by-product of independent but concurrent responses by males to some external stimulus (e.g., a concentration of display sites, prominent food source, or a travel corridor commonly used by...

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