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Author: S. Robbert Gradstein Publisher: Springer Nature ISBN: 3030494500 Category : Science Languages : en Pages : 743
Book Description
This book provides keys, descriptions and illustrations for about 850 species of liverworts and hornworts, in 148 genera and 47 families, of Colombia and Ecuador. The largest genera are Lejeunea (66 spp.), Plagiochila (65), Frullania (54), Radula (33), Metzgeria (33), Cololejeunea (32), Cheilolejeunea (30), Bazzania (26), Drepanolejeunea (25), Ceratolejeunea (18), Diplasiolejeunea (18), and Syzygiella (18). Species descriptions include brief morphological characterization and discussion with emphasis on characters for identification, world range as well as distribution and habitat in Colombia and Ecuador. Classes, orders, families and genera are also described and the main features for recognition of the genera are briefly discussed. The introduction includes chapters on history of exploration, diversity and endemism, and classification. A glossary, bibliography and index to scientific names are also provided.
Author: S. Robbert Gradstein Publisher: Springer Nature ISBN: 3030494500 Category : Science Languages : en Pages : 743
Book Description
This book provides keys, descriptions and illustrations for about 850 species of liverworts and hornworts, in 148 genera and 47 families, of Colombia and Ecuador. The largest genera are Lejeunea (66 spp.), Plagiochila (65), Frullania (54), Radula (33), Metzgeria (33), Cololejeunea (32), Cheilolejeunea (30), Bazzania (26), Drepanolejeunea (25), Ceratolejeunea (18), Diplasiolejeunea (18), and Syzygiella (18). Species descriptions include brief morphological characterization and discussion with emphasis on characters for identification, world range as well as distribution and habitat in Colombia and Ecuador. Classes, orders, families and genera are also described and the main features for recognition of the genera are briefly discussed. The introduction includes chapters on history of exploration, diversity and endemism, and classification. A glossary, bibliography and index to scientific names are also provided.
Author: John J. Engel Publisher: ISBN: Category : Nature Languages : en Pages : 922
Book Description
"Volumes 1 and 2 dealt solely with leafy liverworts. This volume [3] continues to deal with the leafy liverworts, which make up 85% of the New Zealand liverwort flora."--From jacket, v. 3.
Author: Marcelino J. del Arco Aguilar Publisher: Springer ISBN: 3319772554 Category : Science Languages : en Pages : 437
Book Description
The volcanic and oceanic nature of the Canary Islands, its rich plant biodiversity and high rate of endemism, as well as the relict character of some of its plant communities make it a territory of great biological interest. The main geographic, climatic, bioclimatic, biogeographic and floristic features of the Islands are shown and related to the distributional pattern of potential communities along an altitudinal gradient. Current vegetation units and their ecology are described and illustrated with numerous pictures. Potential vegetation units are summarized and comprehensive maps of the potential natural vegetation for each island are given. Human impact on the natural landscape, the occurrence of invasive plants, and the probable impact of climate change on the flora and vegetation are discussed. The conservation status of flora and vegetation are assessed. Four appendixes include a syntaxonomical scheme, a brief history of botanical studies and explorations in the Islands, ethnobotanical notes, and a list of selected literature.
Author: David A. Baum Publisher: Princeton University Press ISBN: 069117587X Category : Science Languages : en Pages : 886
Book Description
The essential one-volume reference to evolution The Princeton Guide to Evolution is a comprehensive, concise, and authoritative reference to the major subjects and key concepts in evolutionary biology, from genes to mass extinctions. Edited by a distinguished team of evolutionary biologists, with contributions from leading researchers, the guide contains some 100 clear, accurate, and up-to-date articles on the most important topics in seven major areas: phylogenetics and the history of life; selection and adaptation; evolutionary processes; genes, genomes, and phenotypes; speciation and macroevolution; evolution of behavior, society, and humans; and evolution and modern society. Complete with more than 100 illustrations (including eight pages in color), glossaries of key terms, suggestions for further reading on each topic, and an index, this is an essential volume for undergraduate and graduate students, scientists in related fields, and anyone else with a serious interest in evolution. Explains key topics in some 100 concise and authoritative articles written by a team of leading evolutionary biologists Contains more than 100 illustrations, including eight pages in color Each article includes an outline, glossary, bibliography, and cross-references Covers phylogenetics and the history of life; selection and adaptation; evolutionary processes; genes, genomes, and phenotypes; speciation and macroevolution; evolution of behavior, society, and humans; and evolution and modern society
Author: Ugyen Tshewang Publisher: Springer Nature ISBN: 3030578240 Category : Nature Languages : en Pages : 404
Book Description
Located in the heart of the Eastern Himalayas, Bhutan practices the philosophy of Gross National Happiness (“GNH”) that embraces environmental conservation as one of the main building blocks for its sustainable development goals. Bhutan’s conservation strategies and success are largely driven by the strong political will and visionary leadership of His Majesty the King of Bhutan The nation’s Buddhist perspectives regarding a deep and abiding respect for nature; and the strategic enforcement of a wide-ranging stringent set of internal regulations and controls have helped ensure ecological gold standards in Bhutan. Moreover, the country is an active member of the international conservation community by fulfilling its implementation of various Multilateral Environment Agreements. While it emerged into the 21st century as one of the 36 global terrestrial “hotspots” in biological diversity conservation ranks, Bhutan’s sheer commitment with more than 51% of its territory being managed under the explicit status of a protected area network, and more than 70% of the land under forest cover, represents Bhutan’s exemplary dedication to protect the planet despite its smallness in size and economy, and the biological fragility exemplified by its hotspot situation. In the face of imminent severe threats of global warming, Bhutan nonetheless exemplifies the truth that “a small country with a big conservation commitment” can make an enormous contribution to the global community. At the regional level, Bhutan is intent upon protecting the Water Towers of Asia (that glacial expanse of the Himalayas) which is a critical resource bulwark for about one-fifth of the global population downstream in South Asia. Such protections invariably help mitigate climate change by acting as a nation-wide carbon sink through its carbon neutral policies. In short, Bhutan has long represented one of the world’s foremost national guardians of biodiversity conservation, ecological good governance, and societal sustainability at a period when the world has entered the Anthropocene – an epoch of mass extinctions. We envision this publication to be ecologically and ethically provocative and revealing for the concerned scientific communities, and governments. Through an extensive review of the scientific and anthropological literature, as well as the research team's own data, the Author's have set forth timely recommendations for conservation policies, strategies and actions. This book provides technical and deeply considered assessments of the state of Bhutan’s environment, its multiple, human-induced stressors and pressures; as well as extremely sound, practical techniques that would address conservation strategies in the Himalayas and, by implication, worldwide.
Author: Ryszard Ochyra Publisher: Cambridge University Press ISBN: 0521814022 Category : Science Languages : en Pages : 711
Book Description
Mosses are a major component of the vegetation in ice-free coastal regions of Antarctica. They play an important role in the colonisation of ice-free terrain, accumulation of organic matter, release of organic exudates, and also provide a food and habitat resource for invertebrates. They serve as model organisms for physiological experiments designed to elucidate problems of plant cold tolerance and survival mechanisms and for monitoring biological responses to climate change. This Flora provides the first comprehensive description, with keys, of all known species and varieties of moss in the Antarctic biome. It has involved microscopic examination of around 10,000 specimens from Antarctica and, for comparison, from other continents. All species are illustrated by detailed line drawings, alongside information about their reproductive status, ecology, and distribution. This is an invaluable resource for bryologists worldwide, as well as to Antarctic botanists and other terrestrial biologists.
Author: David Bramwell Publisher: Cambridge University Press ISBN: 1139497804 Category : Science Languages : en Pages : 539
Book Description
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.
Author: Scott A. Mori Publisher: Tecc Editora ISBN: 9788565005005 Category : BOTANICA. Languages : en Pages : 0
Book Description
Tropical Plant Collecting provides field biologists with information about carrying out fieldwork in tropical America, gathering botanical collections, managing specimens in herbaria, making information about plants available on the Internet, and raising money to fund both expeditions and the preparation of floras and monographs. The book is based on over 40 years of tropical plant collecting in Central and South America by the senior editor and his colleagues. Although traditional field and herbarium techniques are discussed, the book emphasizes how new techniques provided by digital photography, databases, and the Internet have revolutionized plant collecting and data presentation in systematic botany. The audience for this book is tropical biologists and students who, as part of their research, need to gather botanical specimens to document their scientific studies.
Author: S. Robbert Gradstein
Author: S. Robbert Gradstein
Author: John J. Engel
Author: Randall R. Reeves
Author: Marcelino J. del Arco Aguilar
Author: Jonathan Baillie
Author: David A. Baum
Author: Ugyen Tshewang
Author: Ryszard Ochyra
Author: David Bramwell
Author: Scott A. Mori