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In this detailed investigation of the natural variation, geographical distribution, and modern taxonomy of the American Fragaria strawberry species, three species with four subspecies each and two hybrid species are recognized taxonomically. The author also discusses the phylogenetic relationships of the diploid and octoploid species and subspecies and their postpleistocene migration. The American octoploid Fragaria species are known as the ancestors of the large-fruited garden strawberries, so this study is of great horticultural interest and may contribute to the preservation of these species and their further use in strawberry breeding.
In marked contrast to California's landscape of urban sprawl, expansive agriculture, and wildlands altered by protectionist management systems, many landscapes in neighboring Baja California would still be recognizable to the first European explorers. This book shows that the vegetation of present-day Baja California is remarkably similar to that observed in the 18th and 19th centuries, and that historical fire and grazing management has done little to alter the region's resilient mediterranean-type shrublands and forests.
Includes entries for maps and atlases.
South Africa's Weapons of Mass Destruction offers an in-depth view of the secret development and voluntary disarmament of South Africa's nuclear, biological, and chemical weapons program, Project Coast. Helen E. Purkitt and Stephen F. Burgess explore how systems used for nuclear, biological, and chemical weapons in South Africa were acquired and established beyond the gaze of international and domestic political actors. On the basis of archival evidence from Project Coast and their own extensive interviews with military and political officials, Purkitt and Burgess consider what motivates countries to acquire and build such powerful weaponry and examine when and how decisions are made to dismantle a military arsenal voluntarily. Questions such as how to destroy weapons safely and keep them from reappearing on international markets are considered along with comparative strategies for successful disarmament in other nation-states.
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