David Leslie Hawksworth – författare

Conservation and biodiversity of protists The conservation of biodiversity is not just an issue of plants and vertebrates. It is the scarcely visible invertebrates and myriads of other microscopic organisms that are crucial to the maintenance of ecological processes on which all larger organisms and the composition of the atmosphere ultimately depend. Biodiversity and Conservation endeavours to take an holistic view of biodiversity, and when the opportunity arises to issue collections of papers dealing with too-often neglected groups of organisms. The protists, essentially eukaryotes that cannot be classi?ed in the kingdoms of animals, fungi, or plants, include some of the lea- known groups of organisms on earth. They are generally treated as a separate kingdom, commonly named Protista (or Protoctista) in textbooks, but in reality they are a mixture of organisms with disparate a?nities. Some authors have hypothesized that the numbers of protists are not especially large, and that many have extraordinarily wide distributions. However, the p- ture that unfolds from the latest studies discussed in this issue is di?erent. There are many species with wide ranges, and proportionately more cosmopolitan species than in macroorganism groups, as a result of their long evolutionary histories, but there are also de?nite patterns and geographical restrictions to be found. Further, some protists are linked to host organisms as mutualists or parasites and necessarily con?ned to the distributions of their hosts.

1 Plantation forests and biodiversity: Oxymoron or opportunity? Forests form the natural vegetation over much of the Earth’s land, and they are critical for the survival of innumerable organisms. The ongoing loss of natural forests, which in some regions may have taken many millennia to develop, is one of the main reasons for the decline of biodiversity. Preventing the further destruction of forests and protecting species and ecosystems within forests have become central issues for environmental agencies, forest managers, and gove- ments. In this di?cult task science has an important role in informing policy and management as to how to go about this. So how do industrial and other pl- tation forests ?t into this? Plantation forests, comprised of rows of planted trees that may be destined for pulp or sawmills after only a few years of growth, appear to have little to c- tribute to the conservation of biodiversity. Yet there is more to this than meets the eye (of the casual observer), and there are indeed numerous opportunities, and often untapped potential, for biodiversity conservation in plantation forestry. With plantation forests expanding at a rate of approximately three million hectares per year, it is crucial to understand how plantations can make a positive contribution to biodiversity conservation and how the potentially negative impacts of this land use can be minimised. That is the topic of this book.

This book brings together a selection of 21 original studies submitted to Biodiversity and Conservation that address aspects of management for the conservation of biodiversity. The topics addressed include: lessons from the Northern spotted owl saga, hidden costs of implementing the EU Habitats Directive, the importance of recently created agricultural wetlands, cutting reeds to create a sustainable habitat, impacts and control of feral cats, selecting areas to complement existing reserve systems, beneficial effects of rabbit warrens, effects of fences on large predator ranges, spatial structure of critical habitats and connectivity, effects of an agro-pasture landscape on biodiversity, community involvement, reserve selection in forests, germ-plasm interventions in agroforestry systems, shade coffee plantations and the protection of tree diversity, reserves and the reduction of deforestation rates in dry tropical forests, reconciling forest conservation actions with usage by and needs of local peoples, weed invasion in understory plant communities in tropical lowland forests, problems of patch area and connectivity in plant conservation, the need not to focus just on hot-spots, and partitioning conservation across elevations.The organisms and communities considered embrace birds, coral reefs, various large and small mammals, reptiles, forest trees, and dune and boreal semi-natural grassland plants. The contributions are taken from situations being confronted in regions including the Andaman Islands, Brazil, Canary Islands, the Caribbean, Finland, Germany, Guinea, India, Italy, Mexico, Myanmar, Poland, South Africa, Spain, and the USA.Collectively, the studies presented here provide a snap-shot of the types of management actions being undertaken for conservation and their efficacy. This makes the volume especially valuable for use in conservation biology courses.Reprinted from Biodiversity and Conservation, volume 18, No 4 (2009)

This book brings together a selection of 22 original studies submitted to Biodiversity and Conservation that address aspects of methods and practice in biodiversity conservation. The contributions deal with a wide variety of approaches to site selection and management, especially the use of bioindicators, surrogates, and other approaches to site selection. As no complete inventory of all taxa in any one site has yet been achieved, alternative strategies are essential and bioindicators or surrogates come to the fore. The articles included cover a wide range of organisms used in such approaches to in situ conservation: annelids, anurans, arthropods, birds, bryophytes, butterflies, collembolans, flowering pants, a lobster, molluscs, rodents, and turtles. Further, the habitats considered here embrace estuaries, forests, freshwater, grasslands, the marine, mountains, and sand-dunes, and are drawn from a wide range of countries – notably Australia, Brazil, India, Italy, Mexico, Nigeria, Spain, Switzerland, Tanzania, and the U. K.Cryopreservation, well established for ex situ preservation of bacteria and fungi, is shown here also applied to bryophyte conservation. Finance is always a problem, and the final contribution examines the sources of money available for conservation action in an examplar country, Mexico.Collectively, the studies presented here provide a snap-shot of the range of methods and practices in use in the conservation of biodiversity today. This makes the volume especially valuable for use in conservation biology and biodiversity management courses.Reprinted from Biodiversity and Conservation, Volume 18 No 5 (2009).

This book brings together a selection of 21 original studies submitted to Biodiversity and Conservation that address aspects of management for the conservation of biodiversity. The topics addressed include: lessons from the Northern spotted owl saga, hidden costs of implementing the EU Habitats Directive, the importance of recently created agricultural wetlands, cutting reeds to create a sustainable habitat, impacts and control of feral cats, selecting areas to complement existing reserve systems, beneficial effects of rabbit warrens, effects of fences on large predator ranges, spatial structure of critical habitats and connectivity, effects of an agro-pasture landscape on biodiversity, community involvement, reserve selection in forests, germ-plasm interventions in agroforestry systems, shade coffee plantations and the protection of tree diversity, reserves and the reduction of deforestation rates in dry tropical forests, reconciling forest conservation actions with usage by and needs of local peoples, weed invasion in understory plant communities in tropical lowland forests, problems of patch area and connectivity in plant conservation, the need not to focus just on hot-spots, and partitioning conservation across elevations.The organisms and communities considered embrace birds, coral reefs, various large and small mammals, reptiles, forest trees, and dune and boreal semi-natural grassland plants. The contributions are taken from situations being confronted in regions including the Andaman Islands, Brazil, Canary Islands, the Caribbean, Finland, Germany, Guinea, India, Italy, Mexico, Myanmar, Poland, South Africa, Spain, and the USA.Collectively, the studies presented here provide a snap-shot of the types of management actions being undertaken for conservation and their efficacy. This makes the volume especially valuable for use in conservation biology courses.Reprinted from Biodiversity and Conservation, volume 18, No 4 (2009)

This book brings together a selection of 22 original studies submitted to Biodiversity and Conservation that address aspects of methods and practice in biodiversity conservation. The contributions deal with a wide variety of approaches to site selection and management, especially the use of bioindicators, surrogates, and other approaches to site selection. As no complete inventory of all taxa in any one site has yet been achieved, alternative strategies are essential and bioindicators or surrogates come to the fore. The articles included cover a wide range of organisms used in such approaches to in situ conservation: annelids, anurans, arthropods, birds, bryophytes, butterflies, collembolans, flowering pants, a lobster, molluscs, rodents, and turtles. Further, the habitats considered here embrace estuaries, forests, freshwater, grasslands, the marine, mountains, and sand-dunes, and are drawn from a wide range of countries – notably Australia, Brazil, India, Italy, Mexico, Nigeria, Spain, Switzerland, Tanzania, and the U. K.Cryopreservation, well established for ex situ preservation of bacteria and fungi, is shown here also applied to bryophyte conservation. Finance is always a problem, and the final contribution examines the sources of money available for conservation action in an examplar country, Mexico.Collectively, the studies presented here provide a snap-shot of the range of methods and practices in use in the conservation of biodiversity today. This makes the volume especially valuable for use in conservation biology and biodiversity management courses.Reprinted from Biodiversity and Conservation, Volume 18 No 5 (2009).

Conservation and biodiversity of protists The conservation of biodiversity is not just an issue of plants and vertebrates. It is the scarcely visible invertebrates and myriads of other microscopic organisms that are crucial to the maintenance of ecological processes on which all larger organisms and the composition of the atmosphere ultimately depend. Biodiversity and Conservation endeavours to take an holistic view of biodiversity, and when the opportunity arises to issue collections of papers dealing with too-often neglected groups of organisms. The protists, essentially eukaryotes that cannot be classi?ed in the kingdoms of animals, fungi, or plants, include some of the lea- known groups of organisms on earth. They are generally treated as a separate kingdom, commonly named Protista (or Protoctista) in textbooks, but in reality they are a mixture of organisms with disparate a?nities. Some authors have hypothesized that the numbers of protists are not especially large, and that many have extraordinarily wide distributions. However, the p- ture that unfolds from the latest studies discussed in this issue is di?erent. There are many species with wide ranges, and proportionately more cosmopolitan species than in macroorganism groups, as a result of their long evolutionary histories, but there are also de?nite patterns and geographical restrictions to be found. Further, some protists are linked to host organisms as mutualists or parasites and necessarily con?ned to the distributions of their hosts.