A variety of definitions have been proposed for use in identifying species for conservation including:

Proposal 1: A population that is morphologically distinct from other similar populations.
Proposal 2: A population that is substantially reproductively isolated from conspecific populations.
Proposal 3: A populationthat represents an important component in the evolutionary legacy of the species.

How could interspecific hybridization create difficulties inidentifying species for conservation? For what type oforganisms may hybridization, and therefore the problems associated with it for conservation, be most common?