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Author : Andrew Hipp,J. Phil Gibson,Terri R. Gibson
Publisher : Infobase Publishing
Page : 145 pages
File Size : 42,8 Mb
Release : 2007
Category : Science
ISBN : 9781438107011
This book surveys the world's green plant diversity, from green algae through flowering plants, in a taxonomic and evolutionary context.
Author : Grady L. Webster,Robert Rhode
Publisher : Univ of California Press
Page : 253 pages
File Size : 46,8 Mb
Release : 2001-04-26
Category : Science
ISBN : 9780520915930
Based on work spanning a decade, this study of the Maquipucuna area on the western slopes of the Andes discusses the climate, vegetation, ecological relationships, and flora, and emphasizes the importance of the Maquipucuna area as a biological reserve. In addition to the checklist of the flora, which enumerates 1,650 species (including 228 species of pteridophytes and over 200 species of orchids), appendices give information on floristic composition of communities, distribution of epiphytes, and elevational ranges of families and genera. The illustrations include a map, landscapes, and characteristic species.
Author : Maria C. Mandujano,Irene Pisanty,Luis E. Eguiarte
Publisher : Springer Nature
Page : 332 pages
File Size : 53,6 Mb
Release : 2020-07-18
Category : Science
ISBN : 9783030449636
Environmental and specific diversity in the Chihuahuan desert in general, and in the Cuatro Ciénegas Basin in particular, has long been recognized as outstanding. This book provides a global ecological overview, together with in-depth studies of specific processes. The Chihuahuan desert is the warmest in North America, and has a complex geologic, climatic and biogeographical history, which affects today’s distribution of vegetation and plants and generates complex phylogeographic patterns. The high number of endemic species reflects this complex set of traits. The modern distribution of environments, including aquatic and subaquatic systems, riparian environments, gypsum dunes and gypsum-rich soils, low levels of phosphorous and organic matter, and high salinity combined with an extreme climate call for a range of adaptations. Plants are distributed in a patchy pattern based on punctual variations, and many of them respond to different resources and conditions with considerable morphological plasticity. In terms of physiological, morphological and ecological variability, cacti were identified as the most important group in specific environments like bajadas, characterized by high diversity values, while gypsophytes and gypsovagues of different phylogenies, including species with restricted distribution and endemics.
Author : Thomas J. Stohlgren
Publisher : OUP USA
Page : 408 pages
File Size : 42,9 Mb
Release : 2007
Category : Science
ISBN : 9780195172331
Presenting sampling approaches, designs and field techniques for measuring plant diversity, this book lays out a range of methods for mapping and measuring species diversity.
Author : Lorentz C. Pearson
Publisher : CRC Press
Page : 682 pages
File Size : 41,9 Mb
Release : 2023-08-11
Category : Science
ISBN : 9781000947106
This exciting new textbook examines the concepts of evolution as the underlying cause of the rich diversity of life on earth-and our danger of losing that rich diversity. Written as a college textbook, The Diversity and Evolution of Plants introduces the great variety of life during past ages, manifested by the fossil record, using a new natural classification system. It begins in the Proterozoic Era, when bacteria and bluegreen algae first appeared, and continues through the explosions of new marine forms in the Helikian and Hadrynian Periods, land plants in the Devonian, and flowering plants in the Cretaceous. Following an introduction, the three subkingdoms of plants are discussed. Each chapter covers one of the eleven divisions of plants and begins with an interesting vignette of a plant typical of that division. A section on each of the classes within the division follows. Each section describes where the groups of plants are found and their distinguishing features. Discussions in each section include phylogeny and classification, general morphology, and physiology, ecological significance, economic uses, and potential for research. Suggested readings and student exercises are found at the end of each chapter.
Author : Siva Ramamoorthy,Inocencio E Buot Jr.,C Rajasekaran
Publisher : Springer Nature
Page : 715 pages
File Size : 52,5 Mb
Release : 2023-06-09
Category : Science
ISBN : 9789811986499
The edited book highlights comprehensive studies on plant diversity dynamics, ecosystem processes, and best conservation practices from the interdisciplinary perspectives such as the botanists, ecologists, conservation biologists, geneticists, cell biologists, molecular biotechnologists, and social scientists. The main focus of the book is to address biodiversity loss and ecosystem collapse amidst the escalating climate change problems, aggravated by anthropogenic activities in biocultural landscapes. The book describes the biocultural landscape of today, ecology of plant diversity, botany of keystone and other rare species of economic and pharmaceutical significance, ecosystem processes, conservation, and emerging frameworks to sustain biocultural landscapes in the Anthropocene. Biocultural landscapes are tracks of land in many parts of the world, shaped by unique human-nature interactions. Many of these landscapes are populated with indigenous peoples with a unique way of life including their interaction with plants and the environment. The relationship between humans and nature in biocultural landscapes used to be harmonious. However, as the human population surges, much pressure has been experienced by the landscape, hence, the loss of biodiversity and degradation of ecosystem services that cascade to agricultural systems. The book is of interest to teachers, professors, policymakers, researchers, and advocates in the fields of botany, ecology, taxonomy, biodiversity conservation, environmental science, molecular biology and genomics, molecular ecology, agriculture, and Agri-tourism, forestry, social science, and climate change professionals. Also, the book serves as a good reference and additional reading material for undergraduate and graduate students.
Author : H. D. Clarke,Vicki A. Funk,Tom Hollowell
Publisher : BRIT Press
Page : 93 pages
File Size : 40,7 Mb
Release : 2001
Category : Biodiversity
ISBN : 9781889878072
Author : A.K. Bhatnagar,Rupam Kapoor
Publisher : I K International Pvt Ltd
Page : 782 pages
File Size : 42,7 Mb
Release : 2018-07-24
Category : Science
ISBN : 9789385909696
India has a vast landmass of 328 million hectares, extending from the tropics to the alpine regions, rich wetlands to deserts, islands, long coastline to Western and Eastern Ghats and the high Himalayas. It has equally rich and diverse plant diversity, with over 47,000 species that are already documented. Because of the large population dependence on these plants, expansion of agriculture, urbanization and development efforts, many species are threatened too. Some of the issues concerning plant diversity in India are unique to the country. Taxonomic and floristic studies on all major groups have been carried out but the information is scattered in research papers and regional/local floras, manuals and monographs. This volume intends to bridge this gap. Nine of the thirteen chapters of this volume deals with different plant groups extending from algae to angiosperms and allied groups such as bacteria, fungi, lichens, and myxomycetes. There are chapters dealing with topical issues in global context on biodiversity with special reference to India such as climate change and its impact on biodiversity, crop diversity, and tradomedicalism. Each chapter is written by author(s) specialising on the particular group and having long experience of research in it. Each chapter includes not only distribution and diversity but also major researches, economic uses and conventional human interactions. Lacunae in current knowledge are also pinpointed. The book provides information on ecosystem diversity, flora of special sensitive regions (mangroves, wetland, and coral reefs), and on policies and strategies being adopted for in situ and ex situ conservation.
Author : Jonathan Silvertown
Publisher : University of Chicago Press
Page : 180 pages
File Size : 50,5 Mb
Release : 2008-11-15
Category : Science
ISBN : 9780226757773
At the heart of evolution lies a bewildering paradox. Natural selection favors above all the individual that leaves the most offspring—a superorganism of sorts that Jonathan Silvertown here calls the "Darwinian demon." But if such a demon existed, this highly successful organism would populate the entire world with its own kind, beating out other species and eventually extinguishing biodiversity as we know it. Why then, if evolution favors this demon, is the world filled with so many different life forms? What keeps this Darwinian demon in check? If humankind is now the greatest threat to biodiversity on the planet, have we become the Darwinian demon? Demons in Eden considers these questions using the latest scientific discoveries from the plant world. Readers join Silvertown as he explores the astonishing diversity of plant life in regions as spectacular as the verdant climes of Japan, the lush grounds of the Royal Botanical Gardens at Kew, the shallow wetlands and teeming freshwaters of Florida, the tropical rainforests of southeast Mexico, and the Canary Islands archipelago, whose evolutionary novelties—and exotic plant life—have earned it the sobriquet "the Galapagos of botany." Along the way, Silvertown looks closely at the evolution of plant diversity in these locales and explains why such variety persists in light of ecological patterns and evolutionary processes. In novel and useful ways, he also investigates the current state of plant diversity on the planet to show the ever-challenging threats posed by invasive species and humans. Bringing the secret life of plants into more colorful and vivid focus than ever before, Demons in Eden is an empathic and impassioned exploration of modern plant ecology that unlocks evolutionary mysteries of the natural world.
Author : International Plant Genetic Resources Institute,International Development Research Centre (Canada)
Publisher : CRC Press
Page : 306 pages
File Size : 55,9 Mb
Release : 2000
Category : Nature
ISBN : UOM:39076002135577
Genes in the Field: Conserving Plant Diversity on Farms is a comprehensive collection of papers focusing on agricultural conservation and diversity issues throughout the world. Recently, regional and local farm seed variety has been reduced because of increased population, agricultural science and technology and the integration of the world's many diverse cultures. Because of this, diversity on individual farms across wide regions is threatened by modern crop varieties that have been bred for broad adaptation, resistance to disease, and other risk factors such as their ability to better use water, fertilizer, and higher yields. The concern of the farmers to maintain production levels and income often seems incompatible with those whose focus is on the maintenance of viable and sustainable ecosystems and maintaining genetic diversity. Exploring and understanding these different concerns is an essential starting point for answering some of the key questions about the implementation of "on farm" conservation and the role of local cultivators in sustainable development.
Author : Peter R. Bell,Alan R. Hemsley
Publisher : Cambridge University Press
Page : 364 pages
File Size : 40,8 Mb
Release : 2000-09-28
Category : Nature
ISBN : 0521646731
The central theme of Green Plants, first published in 2000, is the astonishing diversity of forms found in the plant kingdom, from the simplicity of prokaryotic algae to the myriad complexities of flowering plants. The book is arranged according to generally accepted classification schemes, beginning with algae (prokaryotic and eukaryotic) and moving through mosses, liverworts, fern allies, ferns and gymnosperms to flowering plants. Copiously illustrated throughout, it provides a concise account of all algae and land plants, with information on topics from cellular structure to life cycles and reproduction. The authors maintain a refreshingly cautious approach in discussions of possible phylogenetic relationships and include newly emerging information on features of plants known only as fossils. This edition has been completely updated to reflect current views on the origin of the major groups of plants, providing a resource for students of botany, and for researchers needing a comprehensive reference to the plant kingdom.
Author : Aaron M. Ellison,Frank S. Gilliam
Publisher : MDPI
Page : 274 pages
File Size : 48,8 Mb
Release : 2019-07-30
Category : Science
ISBN : 9783039213092
This book is a printed edition of the Special Issue Causes and Consequences of Species Diversity in Forest Ecosystems that was published in Forests
Author : Hans ter Steege
Publisher : Unknown
Page : 232 pages
File Size : 50,7 Mb
Release : 2000
Category : Plant diversity
ISBN : MINN:31951D02029192J
Author : Robert E. Ricklefs,Dolph Schluter
Publisher : Unknown
Page : 414 pages
File Size : 52,8 Mb
Release : 1993
Category : Science
ISBN : 0226718239
A pioneering work, Species Diversity in Ecological Communities looks at biodiversity in its broadest geographical and historical contexts. For many decades, ecologists have studied only small areas over short time spans in the belief that diversity is regulated by local ecological interactions. However, to understand fully how communities come to have the diversity they do, and to properly address urgent conservation problems, scientists must consider global patterns of species richness and the historical events that shape both regional and local communities. The authors use new theoretical developments, analyses, and case studies to explore the large-scale mechanisms that generate and maintain diversity. Case studies of various regions and organisms consider how local and regional processes interact to determine patterns of species richness. The contributors emphasize the fact that ecological processes acting quickly on a local scale do not erase the effects of regional and historical events that occur more slowly and less frequently. This book compels scientists to rethink the foundations of community ecology and sets the stage for further research using comparative, experimental, geographical, and historical data.
Author : José María Iriondo,Nigel Maxted,Mohammad Ehsan Dulloo
Publisher : CABI
Page : 232 pages
File Size : 55,8 Mb
Release : 2008-01-01
Category : Technology & Engineering
ISBN : 9781845932824
This book comprises 7 chapters discussing the genetic diversity conservation in protected areas and the management of wild relatives. Some topics covered were: genetic reserve management, location and design; plant population monitoring methods for in situ conservation of wild relatives; habitat recovery; and ex situ measures.