Download or read book Endemism in Vascular Plants written by Carsten Hobohm and published by Springer Science & Business Media. This book was released on 2013-08-23 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book is the first comprehensive analysis of the macroecology and geobotany of endemic vascular plants with case-studies and analyses from different regions in the world. Endemism is a pre-extinction phenomenon. Endemics are threatened with extinction. Due to international nature conservation policies and due to the perception of the public the concept’s importance is increasing. Endemism can result from different biological and environmental processes. Depending on the process conservation measures should be adapted. Endemic vascular plant taxa, in the setting of their species composition and vegetation types are important features of landscapes and indicators of the quality of relating habitats. The book is an important basis for biologists, ecologists, geographers, planners and managers of nature reserves and national parks, and people generally interested in nature conservation and biogeography of vascular plants.
Download or read book Analytical Biogeography written by A.A. Myers and published by Springer Science & Business Media. This book was released on 2013-12-11 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biogeography may be defined simply as the study of the geographical distribution of organisms, but this simple defmition hides the great complexity of the subject. Biogeography transcends classical subject areas and involves a range of scientific disciplines that includes geogra phy, geology and biology. Not surprisingly, therefore, it means rather different things to different people. Historically, the study of biogeogra phy has been concentrated into compartments at separate points along a spatio-temporal gradient. At one end of the gradient, ecological biogeography is concerned with ecological processes occurring over short temporal and small spatial scales, whilst at the other end, historical biogeography is concerned with evolutionary processes over millions of years on a large, often global scale. Between these end points lies a third major compartment concerned with the profound effects of Pleistocene glaciations and how these have affected the distribution of recent organisms. Within each of these compartments along the scale gradient, a large number of theories, hypotheses and models have been proposed in an attempt to explain the present and past biotic distribution patterns. To a large extent, these compartments of the subject have been non-interactive, which is understandable from the different interests and backgrounds of the various researchers. Nevertheless, the distribu tions of organisms across the globe cannot be fully understood without a knowledge of the full spectrum of ecological and historical processes. There are no degrees in biogeography and today' s biogeographers are primarily born out of some other discipline.
Download or read book The Endemic Vascular Plants of the Cape Verde Islands W Africa written by Christian Brochmann and published by . This book was released on 1997 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Endemic Species written by Eusebio Cano Carmona and published by BoD – Books on Demand. This book was released on 2019-12-18 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book consists of several thematic groups, including botany, zoology and topics related to human health. In regards to botany, chapters discuss endemic plants of Bolivia, Mexico, Italy and the Caribbean. They show the diversity, distribution and conservation of many species. In regards to zoology, the book highlights endemic primates and reptiles. Additionally, the book presents other environmental issues relevant to conservation. This volume also presents topics related to health, some of which are relevant for their implications on health and the economy, is the case of the presence of toxins in the Pacific plankton.All chapters present relevant content for future research or because they are fundamental for territorial management.
Download or read book Balkan Biodiversity written by Huw I. Griffiths and published by Springer Science & Business Media. This book was released on 2013-03-19 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first attempt to synthesize current understanding of biodiversity in the great European hot spot. A diverse group of international researchers offers perspective on biodiversity at the level of the gene, species and ecosystem, including contributions on temporal change. Biological groups include plants, mammals, spiders and humans, cave-dwelling organisms, fish, aquatic invertebrates and algae.
Download or read book Alpine Biodiversity in Europe written by Laszlo Nagy and published by Springer Science & Business Media. This book was released on 2003-06-12 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt: The United Nations Conference on the Environment and Development (UNCED), held in Rio de Janeiro in 1992, spawned a multitude of pro grammes aimed at assessing, managing and conserving the earth's biological diversity. One important issue addressed at the conference was the mountain environment. A specific feature of high mountains is the so-called alpine zone, i. e. the treeless regions at the uppermost reaches. Though covering only a very small proportion of the land surface, the alpine zone contains a rela tively large number of plants, animals, fungi and microbes which are specifi cally adapted to cold environments. This zone contributes fundamentally to the planet's biodiversity and provides many resources for mountain dwelling as well as lowland people. However, rapid and largely man-made changes are affecting mountain ecosystems, such as soil erosion, losses of habitat and genetic diversity, and climate change, all of which have to be addressed. As stated in the European Community Biodiversity Strategy, "the global scale of biodiversity reduction or losses and the interdependence of different species and ecosystems across national borders demands concerted international action". Managing biodiversity in a rational and sustainable way needs basic knowledge on its qualitative and quantitative aspects at local, regional and global scales. This is particularly true for mountains, which are distributed throughout the world and are indeed hot spots of biodiversity in absolute terms as well as relative to the surrounding lowlands.
Download or read book Regions of Floristic Endemism in Southern Africa written by Braam Van Wyk and published by . This book was released on 2001 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: The floristic diversity in southern Africa is not only one of the region's greatest natural assets, but also one of the botanical wonders of the world. Here, South of the Cunene-Zambezi rivers, more than 10% of all vascular plants (over 30,000 species), including more than 46% of all succulents, are found on about 2.5% of the world's land surface area. Moreover, at least 60% of these species are strictly confined (endemic) to the region.
Download or read book Conservation Biology written by Peggy L. Fiedler and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 523 pages. Available in PDF, EPUB and Kindle. Book excerpt: • • • John Harper • • • Nature conservation has changed from an idealistic philosophy to a serious technology. Ecology, the science that underpins the technol ogy of conservation, is still too immature to provide all the wisdom that it must. It is arguable that the desire to conserve nature will in itself force the discipline of ecology to identify fundamental prob lems in its scientific goals and methods. In return, ecologists may be able to offer some insights that make conservation more practicable (Harper 1987). The idea that nature (species or communities) is worth preserv ing rests on several fundamental arguments, particularly the argu ment of nostalgia and the argument of human benefit and need. Nostalgia, of course, is a powerful emotion. With some notable ex ceptions, there is usually a feeling of dismay at a change in the sta tus quo, whether it be the loss of a place in the country for walking or rambling, the loss of a painting or architectural monument, or that one will never again have the chance to see a particular species of bird or plant.
Download or read book Flora of Iran Juncaceae written by and published by . This book was released on 1988 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Biology of Island Floras written by David Bramwell and published by Cambridge University Press. This book was released on 2011-07-21 with total page 539 pages. Available in PDF, EPUB and Kindle. Book excerpt: Oceanic islands offer biologists unparalleled opportunities to study evolutionary processes and ecological phenomena. However, human activity threatens to alter or destroy many of these fragile ecosystems, with recent estimates suggesting that nearly half of the world's insular endemics are threatened with extinction. Bringing together researchers from around the world, this book illustrates how modern research methods and new concepts have challenged accepted theories and changed our understanding of island flora. Particular attention is given to the impact of molecular studies and the insights that they provide into topics such as colonisation, radiation, diversification and hybridisation. Examples are drawn from around the world, including the Hawaiian archipelago, Galapagos Islands, Madagascar and the Macronesian region. Conservation issues are also highlighted, with coverage of alien species and the role of ex situ conservation providing valuable information that will aid the formulation of management strategies and genetic rescue programmes.
Download or read book Hotspots written by Russell A. Mittermeier and published by University of Chicago Press. This book was released on 1999 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes sections on Polynesia and Micronesia, the California coast, the Caribbean, Choco-Darien Western Ecuador, the Mediterranean Basin, Brazilian Cerrado, Tropical Andes, Central Chile, Atlantic Forest Region, the Caucasus, the Mountains of South-Central China, India and Burma, Eastern Arc Mountains and Coastal Forests of Tanzania and Kenya, Guinean Forest of West Africa, Succulent Karoo, Cape Floristic Province, Madagascar and Indian Ocean Islands, Western Ghats and Sri Lanka, Sundaland, Wallecea, Southwest Australia, the Philippines, New Caledonia, and New Zealand.
Download or read book The Top 50 Mediterranean Island Plants written by Bertrand de Montmollin and published by IUCN. This book was released on 2005 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: The flora of the Mediterranean islands includes many rare and localized species unique to the islands. Some of these are particularly threatened with extinction due to various pressures caused by people and their activities in Mediterranean ecosystems. It includes 50 descriptive sheets of species which are especially threatened, based on the IUCN Red List criteria. Each sheet gives a description of the species with illustrations and maps, emphasizing the threats to the species, existing conservation measures and additional measures needed for their conservation. Aimed at the layman, the text is easily accessible to the non-botanist.
Download or read book Taxonomy Of Vascular Plants written by Lawrence and published by . This book was released on 2012-01-01 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rarity written by K.J. Gaston and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: To say you are writing about rarity is to invite two kinds of response. Either one provokes a discussion of what rarity is, or some comment on the complex ity of the subject. The objective of this book is to explore the nature of rarity, its complexity if you like, from one particular perspective on what rarity is. Primarily, it is an opportunity to review, to synthesize, and to question. The book is an attempt to draw together a vast body of literature, to extract from it some general principles, and to raise question marks over areas the founda tions of which appear to be either absent or crumbling. A perusal of prefaces suggests that they often dwell as long upon what a book is not about, as upon what it does concern. True to such a tradition, I should state that this is specifically not a book about conservation, although in some quarters anything about rarity is viewed as something about conser vation. Nor does it contain more than a passing reference to the undoubtedly important issues of the role of genetics in rarity. Examples have been drawn from a wide variety of taxa. They are, nonethe less, somewhat depauperate in cases from marine systems. In part this bias results from the unevenness of my familiarity with the literature, in part it perhaps also reflects differences in the questions asked and approaches to the study of communities and assemblages in terrestrial and marine systems.
Download or read book Biodiversity of Angola written by Brian J. Huntley and published by Springer. This book was released on 2019-02-20 with total page 549 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access multi-authored book presents a 'state of the science' synthesis of knowledge on the biodiversity of Angola, based on sources in peer-reviewed journals, in books and where appropriate, unpublished official reports. The book identifies Angola as one of the most biologically diverse countries in Africa, but notes that its fauna, flora, habitats and the processes that drive the dynamics of its ecosystems are still very poorly researched and documented. This 'state of the science' synthesis is for the use of all students of Angola's biodiversity, and for those responsible for the planning, development and sustainable management of the country's living resources. The volume brings together the results of expeditions and research undertaken in Angola since the late eighteenth century, with emphasis on work conducted in the four decades since Angola's independence in 1975. The individual chapters have been written by leaders in their fields, and reviewed by peers familiar with the region.
Download or read book State of the World s Plants written by Royal Botanic Gardens, Kew and published by . This book was released on 2016 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Regions of Floristic Endemism in Southern Africa written by Braam Van Wyk and published by Spotlight Poets. This book was released on 2001 with total page 199 pages. Available in PDF, EPUB and Kindle. Book excerpt: The floristic diversity in southern Africa is not only one of the region's greatest natural assets, but also one of the botanical wonders of the world. Here, South of the Cunene-Zambezi rivers, more than 10% of all vascular plants (over 30,000 species), including more than 46% of all succulents, are found on about 2.5% of the world's land surface area. Moreover, at least 60% of these species are strictly confined (endemic) to the region.
