"In this report, we consider population structure under historical conditions, by which we mean population structure under pristine conditions that existed greater than 200 years ago and would exist presently had anthropogenic disturbances associated with European-American civilization not occurred... This report consists of four main chapters: this introductory chapter, and a chapter for each species that we consider. Throughout the report, we review information on data sets or analyses used in the course of this exercise that do not appear elsewhere in the literature. For the most part, however, data sets and analyses brought to bear in this report are presented in greater detail as journal articles or technical memoranda that are or shortly will be available."--p.2-3.

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