This book includes the proceedings of the second symposium on one important role of botanic gardens in conserving world plant resources. Sessions covered topics such as implementing the botanic gardens conservation strategy, regional networks and national programs in the tropics, and germplasm banks in botanic gardens.

Discusses the various options for conserving plants at the level of the gene, species and community.

A comprehensive text and reference book covering all the aspects of biodiversity science for students and researchers of biodiversity, plant science, biotechnology, as well as zoology.

This book presents a wide range of contributions addressing diverse aspects of biodiversity exploitation and conservation. These collectively provide a snapshot of ongoing action and state-of-the-art research, rather than a series of necessarily more superficial overviews. Examples presented here derive from studies in 17 countries including Africa, Asia, Europe, and North and South America. These reports will stimulate future work toward attaining a sustainable balance between the conservation and exploitation of biodiversity.

Horticultural Reviews presents state-of-the-art reviews on topics in horticultural science and technology covering both basic and applied research. Topics covered include the horticulture of fruits, vegetables, nut crops, and ornamentals. These review articles, written by world authorities, bridge the gap between the specialized researcher and the broader community of horticultural scientists and teachers.

It follows naturally from the widely accepted Darwinian dictum that failures of populations or of species to adapt and to evolve under changing environments will result in their extinction. Population geneti cists have proclaimed a centerstage role in developing conservation biology theory and applications. However, we must critically reexamine what we know and how we can make rational contributions. We ask: Is genetic variation really important for the persistence of species? Has any species become extinct because it ran out of genetic variation or because of inbreeding depression? Are demographic and environmental stochas ticity by far more important for the fate of a population or species than genetic stochasticity (genetic drift and inbreeding)? Is there more to genetics than being a tool for assessing reproductive units and migration rates? Does conventional wisdom on inbreeding and "magic numbers" or rules of thumb on critical effective population sizes (MVP estimators) reflect any useful guidelines in conservation biology? What messages or guidelines from genetics can we reliably provide to those that work with conservation in practice? Is empirical work on numerous threatened habitats and taxa gathering population genetic information that we can use to test these guidelines? These and other questions were raised in the invitation to a symposium on conservation genetics held in May 1993 in pleasant surroundings at an old manor house in southern Jutland, Denmark.

Approaching the contributions of a world-wide sector of scientific institutions to addressing the extinction crisis, Botanical Gardens and Their Role in Plant Conservation brings together a diversity of perspectives. There are more than 3,600 botanical gardens worldwide, where trees, shrubs, herbs, and other plants are studied and managed in collections. They are foremost among efforts to conserve the diversity of living plant species and ensure that crucial biodiversity is available for the future of humanity. This book is a showcase for plant conservation, restoration, biodiversity, and related scientific and educational work of botanical gardens around the world, featuring both thematic overview chapters and numerous case studies that illustrate the critical role these institutions play in fighting extinction and ensuring plant diversity is available for sustainable use. FEATURES A wide range of case studies derived from practical experience in a diversity of institutional, national, and biogeographical settings, Reviews of topics such as networking amongst institutions, the importance of global policy agreements such as the Convention on Biological Diversity and the Global Strategy for Plant Conservation, Profiles of botanical gardens contributions at the national level to conservation priorities, Real-world examples of programs in plant conservation for both critically endangered wild plant diversity and unique horticultural or cultural germplasm. Botanical Gardens and Their Role in Plant Conservation includes contributions from institutions from Africa, Asia, Australia, Europe, and the Americas, and institutions of all sizes and histories, from long-established national gardens to new gardens offering their perspectives on developing their roles in this vital undertaking.

This breakthrough handbook for botanical garden and arboretum curators (and curators in training) has now been expanded and updated fifteen years after the last edition was published. The new edition includes up-to-date information and methods for the preservation and conservation of plants and their use in both ex-situ and in-situ conservation programs, habitat restorations, and conservation research. There are expanded and updated sections on plant acquisitions and field collecting that conform to the Convention on Biological Diversity protocols. New technologies for documenting plant collections are described including reviews of the most common software programs to streamline this process. Recommendations for plant preservation—caring for collections—have been updated with expanded information on basic horticulture practice, sustainable techniques, special applications for conservation collections, and examples of preservation plans. There is an entirely new section on collections research and applications with several chapters on the latest conservation practices, technologies, and programs involving collections. All of the basic and essential information for collections management contained within the first edition, including specific recommendations and examples, has been expanded and updated with recommendations on new technologies and procedures to assist and guide curators in their critical role as plant collection developers, managers, and programmers. What is an important resource for public garden professionals and students has now become even more essential.