Download or read book The Journal of the Botanical Society of South Africa written by and published by . This book was released on 1948 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of the Botanical Society of South Africa written by Botanical Society of South Africa and published by . This book was released on 1916 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Journal of the Botanical Society of South Africa written by Botanical Society of South Africa and published by . This book was released on 1922 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of the Botanical Society of South Africa written by Botanical Society of South Africa and published by . This book was released on 1927 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Politics of Nature and Science in Southern Africa written by Maano Ramutsindela and published by BASLER AFRIKA BIBLIOGRAPHIEN. This book was released on 2016-09-12 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book brings together recent and ongoing empirical studies to examine two relational kinds of politics, namely, the politics of nature, i.e. how nature conservation projects are sites on which power relations play out, and the politics of the scientific study of nature. These are discussed in their historical and present contexts, and at specific sites on which particular human-environment relations are forged or contested. This spatio-temporal juxtaposition is lacking in current research on political ecology while the politics of science appears marginal to critical scholarship on social nature. Specifically, the book examines power relations in nature-related activities, demonstrates conditions under which nature and science are politicised, and also accounts for political interests and struggles over nature in its various forms. The ecological, socio-political and economic dimensions of nature cannot be ignored when dealing with present-day environmental issues. Nature conservation regulations are concerned with the management of flora and fauna as much as with humans. Various chapters in the book pay attention to the ways in which nature, science and politics are interrelated and also co-constitutive of each other. They highlight that power relations are naturalised through science and science-related institutions and projects such as museums, botanical gardens, wetlands, parks and nature reserves.
Download or read book Botanical Exploration Southern Africa written by Mary Gunn and published by CRC Press. This book was released on 1981-06-01 with total page 844 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text gives biographical accounts of the leading plant collectors and their activities in Southern Africa from the days of the East India Company until modern times.
Download or read book Journal of South African botany Supplementary volume written by National Botanic Gardens of South Africa and published by . This book was released on 1984 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of South African Botany written by and published by . This book was released on 1953 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Veld flora written by and published by . This book was released on 1973 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Serials Currently Received by the National Agricultural Library 1974 written by National Agricultural Library (U.S.) and published by . This book was released on 1974 with total page 1352 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Serials Currently Received by the National Agricultural Library 1975 written by National Agricultural Library (U.S.) and published by . This book was released on 1976 with total page 1392 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Plant Book written by D. J. Mabberley and published by Cambridge University Press. This book was released on 1997-06-19 with total page 880 pages. Available in PDF, EPUB and Kindle. Book excerpt: A new edition of one of the most practical and authoritative botanical dictionaries available.
Download or read book Euphorbia in Southern Africa written by Peter V. Bruyns and published by Springer Nature. This book was released on 2022-07-14 with total page 515 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a new account of Euphorbia in southern Africa. Euphorbia is the second largest genus of plants in the world. Southern Africa enjoys a high diversity in Euphorbia and 170 species occur here naturally. Of these 170 species, 128 or 74% are endemic. Where most species of Euphorbia in the northern hemisphere are herbs or shrubs, most of those in southern African are succulent. These succulents range from small, almost geophytic forms where the tuber is larger than the above-ground parts to huge trees 6 to 15 m or more in height. Many of them are spiny. There are also small numbers of herbaceous species in southern Africa and many of these are also dealt with here. The last account of the succulent species for southern Africa was published in 1941 and much new data has accumulated since then. Our understanding of the relationships of the species in Euphorbia has also been greatly enhanced by recent analyses of DNA-data, which led to new and unexpected results. From this new information an entirely new classification was developed, in which Euphorbiawas divided into four subgenera. This provides the taxonomic framework for the presentation of our species here. Around ten new species have been described and these are presented in detail for the first time. This monograph is made up of two volumes. Volume 1 contains an extensive introductory chapter with an overview of the genus in the region, emphasizing many of its important and distinctive features. This is followed by Chapter 2, which deals with subgenus Athymalus. Of the four subgenera, this one is by far the most diverse in southern Africa, with 80 species. Volume 2 contains Chapters 3 (subg. Chamaesyce, 34 species), 4 (subg. Esula, 11 species) and 5 (subg. Euphorbia, 45 species), as well as an additional Chapter 6 covering the remarkable diversity of subg. Euphorbia in Moçambique. Each of Chapters 2 to 5 includes a key to all the species, followed by an account of each of them. This account includes synonymy, a description, data on distribution and habitat, line-drawings of floral features and other diagnostic details, notes on how the species is distinguished from its closest relatives and a brief history of its discovery. Several colour photographs are included for each species, illustrating its habitat, vegetative habit and flowering features, demonstrating key points distinguishing it from others and often showing its variability. Euphorbia is an important component of the vegetation in many of the drier parts of southern Africa. This book is based on a thorough evaluation of the vast herbarium record for southern African members of Euphorbia, on the extensive field-work conducted in the region and the wide taxonomic experience of the author. It is believed that both the professional botanist and the layman will find much that is new and informative in this monograph.
Download or read book Invasive and Introduced Plants and Animals written by Ian D. Rotherham and published by Routledge. This book was released on 2012-12-06 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: There have been many well-publicized cases of invasive species of plants and animals, often introduced unintentionally but sometimes on purpose, causing widespread ecological havoc. Examples of such alien invasions include pernicious weeds such as Japanese knotweed, an introduced garden ornamental which can grow through concrete, the water hyacinth which has choked tropical waterways, and many introduced animals which have out-competed and displaced local fauna. This book addresses the broader context of invasive and exotic species, in terms of the perceived threats and environmental concerns which surround alien species and ecological invasions. As a result of unprecedented scales of environmental change, combined with rapid globalisation, the mixing of cultures and diversity, and fears over biosecurity and bioterrorism, the known impacts of particular invasions have been catastrophic. However, as several chapters show, reactions to some exotic species, and the justifications for interventions in certain situations, including biological control by introduced natural enemies, rest uncomfortably with social reactions to ethnic cleansing and persecution perpetrated across the globe. The role of democracy in deciding and determining environmental policy is another emerging issue. In an increasingly multicultural society this raises huge questions of ethics and choice. At the same time, in order to redress major ecological losses, the science of reintroduction of native species has also come to the fore, and is widely accepted by many in nature conservation. However, with questions of where and when, and with what species or even species analogues, reintroductions are acceptable, the topic is hotly debated. Again, it is shown that many decisions are based on values and perceptions rather than objective science. Including a wide range of case studies from around the world, his book raises critical issues to stimulate a much wider debate.
Download or read book Ladies in the Laboratory III written by Mary R. S. Creese and published by Scarecrow Press. This book was released on 2010-02-08 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: Published in 1998, Ladies in the Laboratory provided a systematic survey and comparison of the work of 19th-century American and British women in scientific research. A companion volume, published in 2004, focused on women scientists from Western Europe. In this third volume, author Mary R.S. Creese expands her scope to include the contributions of 19th- and early 20th-century women of South Africa, Australia, New Zealand, and Canada. The women whose lives and work are discussed here range from natural history collectors and scientific illustrators of the early and mid years of the 19th century to the first generation of graduates of the new colonial colleges and universities. Rarely acknowledged in publications of the British and European specialists, the contributions of these women nonetheless formed a significant part of the natural history information about extensive, previously unknown regions and their products. Rather than a biographical dictionary or a collection of self-contained essays on individuals from many time periods, Ladies in the Laboratory III is a connected narrative tied into the wider framework of 19th-century science and education. A well-organized blend of individual life stories and quantitative information, this volume is for everyone interested in the story of women's participation in 19th century science. The stories of these women make for fascinating reading and serve as a valuable source for the student of women's and colonial history.
Download or read book Imperial Ecology written by Peder ANKER and published by Harvard University Press. This book was released on 2009-06-30 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: From 1895 to the founding of the United Nations in 1945, the promising new science of ecology flourished in the British Empire. Peder Anker asks why ecology expanded so rapidly and how a handful of influential scientists and politicians established a tripartite ecology of nature, knowledge, and society. Patrons in the northern and southern extremes of the Empire, he argues, urgently needed tools for understanding environmental history as well as human relations to nature and society in order to set policies for the management of natural resources and to effect social control of natives and white settlement. Holists such as Jan Christian Smuts and mechanists such as Arthur George Tansley vied for the right to control and carry out ecological research throughout the British Empire and to lay a foundation of economic and social policy that extended from Spitsbergen to Cape Town. The enlargement of the field from botany to human ecology required a broader methodological base, and ecologists drew especially on psychology and economy. They incorporated those methodologies and created a new ecological order for environmental, economic, and social management of the Empire. Table of Contents: Acknowledgments Introduction From Social Psychology to Imperial Ecology General Smuts's Politics of Holism and Patronage of Ecology The Oxford School of Imperial Ecology Holism and the Ecosystem Controversy The Politics of Holism, Ecology, and Human Rights Planning a New Human Ecology Conclusion: A World without History An Ecology of Ecologists Notes Sources Index Reviews of this book: Peder Anker's Imperial Ecology is the unexpected story of how late-imperial British ecologists took their arcane studies of marine life off Spitzbergen or the game of southern Africa and brought them to bear on very different areas of interest. These ecologists fashioned from their studies a view of human ecology broad enough, in this telling, to embrace cycles of sexual activity in Japanese brothels, famine in central Asia, the building blocks for national economic planning and the cultural underpinnings of Nazism. An eye-opener. --Fred Pearce, New Scientist Reviews of this book: Few books are truly original; however, Anker...puts an original perspective on the history of ecology, linking two major schools of thought...to the imperial aspirations of Great Britain. The UK provided patronage (grants) to support ecologists who in turn provided important concepts strengthening Britain's imperial grip by enhancing resource management and incorporating human ecology into colonial ecosystems...This thought-provoking book provides many new insights into the history of a discipline. It will be news to most ecologists, whose knowledge of their own history is often sketchy at best. --J. Burger, Choice Anker has written a ruthlessly honest political and cultural history of ecology, setting it firmly in the world of nineteenth-century colonialism. Illusions vanish here: turn of the century ecology did not stand for a pure pacifism or an eden of natural harmony. Instead, we find that both the liberal mechanism of British ecologist Arthur George Tansley and the holistic ecology of South African statesman Jan Christian Smuts were both firmly built upon nationalism--and a nationalism that mattered a great deal, militarily, racially, and socially. This is important work and a riveting read. --Peter Galison, Harvard University
Download or read book List of Journals Indexed by the National Agricultural Library 1974 76 written by National Agricultural Library (U.S.) and published by . This book was released on 1978 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:
