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Refuge Begonias
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Book Synopsis The Biodiversity of African Plants by : Xander van der Maesen
Download or read book The Biodiversity of African Plants written by Xander van der Maesen and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 864 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the XIVth AETFAT Congress, 22-27 August 1994, Wageningen, the Netherlands
Book Synopsis Forest Diversity and Management by : David L. Hawksworth
Download or read book Forest Diversity and Management written by David L. Hawksworth and published by Springer Science & Business Media. This book was released on 2007-04-06 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt: Drawing on research from biodiversity experts around the world, this book reflects the diversity of forest types and forest issues that concern forest scientists. Coverage ranges from savannah and tropical rainforests to the ancient oak forests of Poland; issues explored include the effects of logging, management practices, forest dynamics and climate change on forest structure and biodiversity. Here is a useful overview of current science, for researchers and educators alike.
Book Synopsis The Sections of Begonia by : J. Doorenbos
Download or read book The Sections of Begonia written by J. Doorenbos and published by . This book was released on 1998 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Dynamical Processes of Biodiversity by : Oscar Grillo
Download or read book The Dynamical Processes of Biodiversity written by Oscar Grillo and published by BoD – Books on Demand. This book was released on 2011-12-02 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: Driven by the increasing necessity to define the biological diversity frame of widespread, endemic and threatened species, as well as by the stimulating chance to describe new species, the study of the evolutive and spatial dynamics is in constant execution. Systematic overviews, biogeographic and phylogenic backgrounds, species composition and distribution in restricted areas are focal topics of the 15 interesting independent chapters collected in this book, chosen to offer to the reader an overall view of the present condition in which our planet is.
Book Synopsis Evolutionary Biology by : Max K. Hecht
Download or read book Evolutionary Biology written by Max K. Hecht and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 285 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is the twenty-ninth in this series, which includes twenty-eight numbered volumes and one unnumbered supplement. The editors continue to focus on critical reviews, commentaries, original papers, and controversies in of the reviews range from anthropology to evolutionary biology. The topics molecular evolution, population biology to paleobiology. Recent volumes have included a broad spectrum of chapters on such subjects as population biology, comparative morphology, paleobiology, molecular phy logenetics, developmental evolutionary biology, systematics, and the history of evolutionary biology. The editors continue to solicit manuscripts in all areas of evolutionary biology. Manuscripts should be sent to anyone of the following: Max K. Hecht, Department of Biology, Queens College of the City University of New York, Flushing, New York 11367; Ross 1. MacIntyre, Department of Genetics and Development, Cornell University, Ithaca, New York 14853; or Michael T. Clegg, Department of Botany and Plant Sciences, University of California, Riverside, California 92521. vii Contents 1. Homology and Embryonic Development Brian K. Hall Introduction .............................................. 1 A Brief History of the Concept of Homology ................. 1 von Baer's Laws ........................................ 4 Germ Layers and Ernst Haeckel ............................ 6 Embryology and Homology ............................... 7 Homology: An Unsolved Problem ............................ 8 Latent Homology ........................................ 8 Serial Homology ........................................ 9 Common Origins and Common Inductions ..................... 12 Mechanisms of Gastrulation ............................... 13 Origin of the Alimentary Canal ............................ 14 Origin of Germ Cells . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 . . . . . . . . . . Induction of Meckel's Cartilage ............................ 15 Induction of the Lens of the Eye ........................... 16 Development of Internal and External Cheek Pouches .......... 18 Selection for Increased Tail Length in Mice .................. 19 Regeneration and Homology .... . . . . . . . . . . . . . . . . . . . . 20 . . . . . . .
Book Synopsis Plants of the World by : Maarten J. M. Christenhusz
Download or read book Plants of the World written by Maarten J. M. Christenhusz and published by University of Chicago Press. This book was released on 2017-11-13 with total page 801 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plants of the World is the first book to systematically explore every vascular plant family on earth—more than four hundred and fifty of them—organized in a modern phylogenetic order. Detailed entries for each family include descriptions, distribution, evolutionary relationships, and fascinating information on economic uses of plants and etymology of their names. All entries are also copiously illustrated in full color with more than 2,500 stunning photographs. A collaboration among three celebrated botanists at the Royal Botanic Gardens, Kew, Plants of the World is authoritative, comprehensive, and beautiful. Covering everything from ferns to angiosperms, it will be an essential resource for practicing botanists, horticulturists, and nascent green thumbs alike.
Book Synopsis African Rain Forest Ecology and Conservation by : William Weber
Download or read book African Rain Forest Ecology and Conservation written by William Weber and published by Yale University Press. This book was released on 2001-01-01 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt: Extending from west Africa to Madagascar, from the vast lowland Congo Basin to the archipelago of forest islands on its eastern rim, the African rain forest is surpassed in size only by the Amazon. This book sheds light on the current efforts to understand and conserve the African rain forest, an area in need of urgent action to save its biological wealth, cultural heritage, and economic potential. Written by conservation scientists and practitioners based in the African rain forest, the book offers a multidisciplinary perspective that integrates many biological and social sciences. Early chapters trace the forces--from paleoecological factors to recent human actions--that have shaped the African forest environment. The next chapters discuss the dominant biological patterns of species ranging from the distinctive elephants, gorillas, and okapi to the less well known birds, butterflies, and amphibians. Other chapters focus on how such different groups as hunter-gatherers, forest farmers, bushmeat hunters, recent immigrants, and commercial foresters have used the forests. Several authors stress the need for tighter links between research and conservation action. The final section draws lessons from the collective experience of those working in an Africa wracked by political strife and economic hardship.
Book Synopsis Cultivated Plants of Southern Africa by : H. F. Glen
Download or read book Cultivated Plants of Southern Africa written by H. F. Glen and published by Jacana Media. This book was released on 2002 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: A listing of almost 9000 kinds of plants known to be cultivated in Southern Africa, or to have been tried here. The information is derived from a database containing details mainly of specimens archived in the National Herbarium, Pretoria.
Download or read book Proceedings written by and published by . This book was released on 1996 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ethnobotanic Resources of Tropical Montane Forests by : Emmanuel Neba Ndenecho
Download or read book Ethnobotanic Resources of Tropical Montane Forests written by Emmanuel Neba Ndenecho and published by African Books Collective. This book was released on 2011 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mountain forests provide important ecological services, and essential products. This book focuses on the importance of mountain forests in Cameroon for the local people who depend most directly on them, and have often developed a wealth of indigenous knowledge on plants and sophisticated institutions for managing limited plant and animal resources. Such knowledge and institutions have often been threatened, or even destroyed, by centralization and globalization; yet there is increasing recognition that community-based institutions are the best adapted to ensuring that mountain forests continue to supply their diverse goods and services to both mountain and other people over the long-term. The book provides a useful combination of case studies on ethnobotanic analysis and cultural values of plants, community-based ecological planning for protected area management and eco-cultural tourism development. It provides an unusually useful combination of overviews and synthesis of theory and experience with in-depth case studies of montane forest-adjacent communities and protected areas. Throughout the book there are good summary tables, case study maps, and diagrams that are relevant to the themes in question. Finally, the book addresses the possible mutual benefits of indigenous knowledge and modern science, indigenous peoples and the development of eco-cultural tourism in protected areas, indigenous peoples and ecological planning in protected areas. It therefore emphasizes cooperation based on partnerships amongst indigenous people, governments and the global conservation community, in the interest of effective conservation. This is a valuable book for land managers, environmental scientists, environmental biologists, natural resource managers and students reading subjects such as geography, biology, forestry, botany and environmental science.
Book Synopsis Revision of Pearcea (Gesneriaceae) by : Lars Peter Kvist
Download or read book Revision of Pearcea (Gesneriaceae) written by Lars Peter Kvist and published by . This book was released on 1996 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seventeen species of Pearcea (Gesneriaceae) are recognized, nine of which are new: Pearcea bella, P. bilabiata, P. cordata, P. fuscicalyx, P. glabrata, P. gracilis, P. grandifolia, P. intermedia, and P. strigosa. Of the remaining eight species, two were originally described in Pearcea, one is transferred herein from Kohleria, and five come from Parakohleria, a genus placed in synonymy herein. Pearcea occurs mainly on the eastern Andean slopes of Colombia (5 species), Ecuador (12 species), Peru (6 species), and Bolivia (1 species), and one species also occurs on the western Andean slopes in Ecuador. The largest number of species appears to occur in Ecuador, although additional species may occur in less explored parts of Peru. Pearcea differs from related and similar genera in the Gloxinieae by having fleshy capsules dehiscing by two valves and exposing a sticky seed mass. All species are herbs, usually with bright red flowers, and are usually found in the shady, humid forest understory, often near small streams. Hybridization, local speciation, and polymorphic variation may complicate the species delimitation. The variable Pearcea sprucei occurs throughout nearly the entire range of the genus (and includes the only accepted variety, var. parviflora), but most species are rare and local.
Download or read book Adansonia written by and published by . This book was released on 2005 with total page 806 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Flowering Plants. Eudicots by : Klaus Kubitzki
Download or read book Flowering Plants. Eudicots written by Klaus Kubitzki and published by Springer Science & Business Media. This book was released on 2010-12-10 with total page 447 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume, the tenth in the series, comprises modern treatments for the families and genera of the eudicot orders Sapindales and Cucurbitales. The circumscription of the orders, families and genera conforms to the most recent systematic studies. The family treatments include descriptions of the families and the genera, genera classification keys, discussions of relationships and data on their morphology, reproductive biology, distribution, ecology and economic importance. Sapindales and Cucurbitales, as understood in this volume, comprise 16 families with 637 genera and roughly 9,240 species. Sapindales include large tropical and southern temperate tree families such as the Anacardiaceae, Sapindaceae (these in the modern circumscription, which includes Aceraceae and Hippocastanaceae), Meliaceae and Rutaceae, which have long been considered to be closely related. Cucurbitales represent a relatively new ordinal concept; apart from some small woody groups, the order contains two large families, Cucurbitaceae and Begoniaceae, which are predominantly, and likely basically, herbaceous. A detailed treatment of the tropical and southern temperate woody family Myrtaceae (itself comprising 142 genera and 6,700 species) is an addendum to the treatment of the Myrtales in Vol. IX of this series.
Book Synopsis Seed Micromorphology of Neotropical Begonias by : Anton De Lange
Download or read book Seed Micromorphology of Neotropical Begonias written by Anton De Lange and published by . This book was released on 1999 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: The seeds of about 235 Neotropical Begonia species, representing almost all recognized American Begonia sections, were studied using scanning electron microscopy. The seeds show an appreciable diversity in size, shape, and micromorphology, which is helpful in the delimitation of sections and sometimes also of species. Mean seed length varies from 235 m in Begonia filipes to 1450 m in B. fruticosa; most seeds have a length between 300 m and 600 m. The shape of the seeds varies from almost globular to narrowly elliptic, and the length to width ratio ranges from 1.2 in B. hexandra to 8.1 in B. fruticosa. Further differences exist in the shape of the testal cells, the undulation of the anticlinal walls, the bulging of the outer periclinal walls, and the pattern and roughness of the cuticle. Five of the 15 mainly Brazilian, five of the 12 Andean and Guianan, and one of the eight middle American sections have a seed structure that is characteristic at the sectional level. All these sections have a relatively restricted geographical distribution, and they may differ in growth form or habitat. Most species of the other sections, including the larger and more widely distributed sections Begonia, Gireoudia, and Knesebeckia, have seeds conforming to the ordinary seed type. In a number of the sections, the structural differences of the seeds are nicely correlated with differences in growth form and/or in means of dispersal. In contrast to the African begonias, the great majority of the Neotropical begonias have anemoballistic dispersal. Seeds may be adapted to wind dispersal by extended micropylar and/or chalazal ends with inflated, air-filled cells, such as in the Brazilian sections Solananthera, Trendelenburgia, and Enita and in the Andean section Rossmannia, or by a more pronounced surface with deep, collapsed testal cells, such as in sections Gobenia and Scheidweileria. Zooballistic dispersal by passing animals is supposed to be present in section Casparya. The seeds of sections Casparya and Trachelocarpus have very pronounced cuticular patterns and may be secondarily dispersed by rain wash or by adhering to animals. No distinct indications for an intercontinental relationship between Neotropical, African, and Asiatic sections could be established.
Book Synopsis Cancer Stories by : David M. Gregory
Download or read book Cancer Stories written by David M. Gregory and published by McGill-Queen's Press - MQUP. This book was released on 1999-11-15 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Cancer Stories five people share their journeys, their stories, and the suffering they faced before their deaths. These narratives chronicle the despair, hope, and love they experienced while living and dying with cancer, giving the power of the human spirit full voice. Lessons learned are presented as "gifts" at the conclusion of each of the five narratives. This book is for people living with the disease and their caregivers. Nurses and physicians, students in any health-related discipline, as well as persons engaged in qualitative research will also find this an invaluable resource. The importance of incorporating qualitative, research-based approaches in caring for the dying emerges from the narratives. Cancer Stories points toward a more holistic research/treatment agenda, one that bridges the medical and social sciences.
Download or read book California Garden written by and published by . This book was released on 1909 with total page 724 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Vegetables written by G. J. H. Grubben and published by PROTA. This book was released on 2004 with total page 671 pages. Available in PDF, EPUB and Kindle. Book excerpt:
