Seed and gene banks have made great strides in preserving the biological diversity of traditional agricultural plant species, but they have tended to ignore a serious component: the knowledge about those crops and methods of farming held by the people who have long raised them. Virginia Nazarea now makes a case for preserving cultural memory along with biodiversity. By exploring how indigenous people farm sweet potatoes in Bukidnon, Philippines, she discovers specific ways in which the conservation of genetic resources and the conservation of culture can support each other. Interweaving a wealth of ecological and cognitive data with oral history, Nazarea details a "memory banking" protocol for collecting and conserving cultural information to complement the genetic, agronomic, and biochemical characterization of important crops. She shows that memory banking offers significant benefits for local populations—not only the preservation of traditional knowledge but also the maintenance of alternatives to large-scale agricultural development and commercialization. She also compares alternative forms of germplasm conservation conducted by a male-dominated hierarchy with those of an informal network of migrant women. Cultural Memory and Biodiversity establishes valuable guidelines for people who aspire to support community-based in situ conservation of local varieties. Perhaps more important, it shows that the traditional methods of local farmers are often as important as the "advanced" methods encouraged by advocates of modernization.

Faced with widespread and devastating loss of biodiversity in wild habitats, scientists have developed innovative strategies for studying and protecting
targeted plant and animal species in "off-site" facilities such as botanic gardens and zoos. Such ex situ work is an increasingly important component of conservation and restoration efforts.

Ex Situ Plant Conservation, edited by Edward O. Guerrant Jr., Kayri Havens, and Mike Maunder, is the first book to address integrated plant conservation strategies and to examine the scientific, technical, and strategic bases of the ex situ approach. The book examines where and how ex situ investment can best support in situ conservation. Ex Situ Plant Conservation outlines the role, value, and limits of ex situ conservation as well as updating best management practices for the field, and is an invaluable resource for plant conservation practitioners at botanic gardens, zoos, and other conservation organizations; students and faculty in conservation biology and related fields; managers of protected areas and other public and private lands; and policymakers and members of the international community concerned with species conservation.

Farmers and gardeners have long appreciated a wide variety of plants and have nurtured them for meals, healing, and exchange. But diversity too often has been surrendered to monocultures of fields and spirits, predisposing much of modern agriculture to uniformity and, consequently, vulnerability. Today it is primarily at the individual level—such as growing and saving a strange old bean variety or a curious-looking gourd—that any lasting conservation actually takes place.

As scientists grapple with the erosion of genetic diversity of crops and their wild relatives, old-timey farmers and gardeners continue to save, propagate, and pass on folk varieties and heirloom seeds. Virginia Nazarea focuses on the role of these seedsavers in the perpetuation of diversity. She thoughtfully examines the framework of scientific conservation and argues for the merits of everyday conservation—one that is beyond programmatic design. Whether considering small-scale rice and sweet potato farmers in the Philippines or participants in the Southern Seed Legacy and Introduced Germplasm from Vietnam in the American South, she explores roads not necessarily less traveled but certainly less recognized in the conservation of biodiversity.

Through characters and stories that offer a wealth of insights about human nature and society, Heirloom Seeds and Their Keepers helps readers more fully understand why biodiversity persists when there are so many pressures for it not to. The key, Nazarea explains, is in the sovereign spaces seedsavers inhabit and create, where memories counter a culture of forgetting and abandonment engendered by modernity. A book about theory as much as practice, it profiles these individuals, who march to their own beat in a world where diversity is increasingly devalued as the predictability of mass production becomes the norm.

Heirloom Seeds and Their Keepers offers a much-needed, scientifically researched perspective on the contribution of seedsaving that illustrates its critical significance to the preservation of both cultural knowledge and crop diversity around the world. It opens new conversations between anthropology and biology, and between researchers and practitioners, as it honors conservation as a way of life.

It was through control of the shattering of wild seeds that humans first domesticated plants. Now control over those very plants threatens to shatter the world's food supply, as loss of genetic diversity sets the stage for widespread hunger.

Large-scale agriculture has come to favor uniformity in food crops. More than 7,000 U.S. apple varieties once grew in American orchards; 6,000 of them are no longer available. Every broccoli variety offered through seed catalogs in 1900 has now disappeared. As the international genetics supply industry absorbs seed companies—with nearly one thousand takeovers since 1970—this trend toward uniformity seems likely to continue; and as third world agriculture is brought in line with international business interests, the gene pools of humanity's most basic foods are threatened.

The consequences are more than culinary. Without the genetic diversity from which farmers traditionally breed for resistance to diseases, crops are more susceptible to the spread of pestilence. Tragedies like the Irish Potato Famine may be thought of today as ancient history; yet the U.S. corn blight of 1970 shows that technologically based agribusiness is a breeding ground for disaster.

Shattering reviews the development of genetic diversity over 10,000 years of human agriculture, then exposes its loss in our lifetime at the hands of political and economic forces. The possibility of crisis is real; this book shows that it may not be too late to avert it.