What conservation measure critically aided the Wood Duck's population rebound?

Answer

Widespread installation of artificial nesting boxes starting mid-20th century

The recovery of the Wood Duck population following its near-extinction in the early 1900s, caused by market hunting and habitat destruction, provides a significant conservation case study. While legal protection under the Migratory Bird Treaty Act was essential, the widespread, systematic installation of artificial nesting boxes beginning in the mid-20th century was critically important. This practice effectively supplemented the missing structural component of their historical habitat—old, cavity-bearing trees—allowing the specialized species to rebound rapidly. This success demonstrates that conservation managers can successfully support an evolutionarily specialized species by artificially providing the missing environmental element necessary for their inherent biological capacity to thrive.

What conservation measure critically aided the Wood Duck's population rebound?
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