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Significance

Significance is considered only if a population segment is discrete. Its significance ``will consider available scientific evidence ... of the discrete population segment's importance to the taxon to which it belongs.'' Those considerations may include, but are not limited to, the following list:

  1. Persistence of the discrete population segment in an ecological setting unusual or unique for the taxon.

  2. Evidence that loss of the discrete population segment would result in a significant gap in the range of a taxon.

  3. Evidence that the discrete population segment represents the only surviving natural occurrence of a taxon that may be more abundant elsewhere as an introduced population outside its historic range.

  4. Evidence that the discrete population segment differs markedly from other populations of the species in its genetic characteristics.



Kent Holsinger 2013-09-22