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Author: Herman Silas Pepoon
Publisher:
ISBN:
Category : Botany
Languages : en
Pages : 588
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Book Description
Author: Herman Silas Pepoon
Publisher:
ISBN:
Category : Botany
Languages : en
Pages : 588
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Book Description
Author: Missouri Botanical Garden
Publisher:
ISBN:
Category : Botany
Languages : en
Pages : 212
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Book Description
The January number of v. 1- contains the annual reports of the officers of the board and the director.
Author: Robert H. Mohlenbrock
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 528
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Book Description
"Mohlenbrock's landmark Guide, so heralded at its initial appearance in 1975, has now been revised to include nearly a five percent increase in the number of taxa occurring uncultivated in the state of Illinois. Here are 3,204 taxa of ferns, gymnosperms, and flowering plants. Robert H. Mohlenbrock, editor of the Illustrated Flora of Illinois, of which ten volumes have been published to date, has been studying the Illinois flora for nearly 40 years. In this revised and enlarged Guide he presents all taxa known to be native in Illinois either at present or in the past and all non-native vascular plants that appear to be able to maintain themselves year after year without cultivation. He has personally verified the basis for including every taxon. Common names in general use are provided, as well as an indication of flowering time for flowering plants and spore-production time for ferns. He concludes with a habitat statement and a general comment on the distribution of each taxon throughout the state." --
Author: Robert H. Mohlenbrock
Publisher: MacMillan Publishing Company
ISBN:
Category : Nature
Languages : en
Pages : 272
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Book Description
This book attempts to provide an account of each kind of plant that has been placed on the federal list of endangered and threatened species, as well as those that have gone through the listing process except for the final listing. In addition, nearly sixty plants in the United States that are rare and are being reviewed by the United States Fish and Wildlife service are described in this book. Following an initial chapter that discusses one of this nation's extinct plants and the efforts now being made to prevent further extinction, there are seven chapters based on geographical regions in this country that include the discussions of the endangered and threatened plants. Those plants which have already been listed by the federal government are given first in each chapter, followed by those currently under review.
Author: Frederick Brendel
Publisher:
ISBN:
Category : Botany
Languages : en
Pages : 102
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Book Description
Author: Anthony Julian Huxley
Publisher: Univ of California Press
ISBN: 9780520243590
Category : Nature
Languages : en
Pages : 192
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Book Description
A lavishly illustrated overview of the world's wild and cultivated plant population, their impact on our lives, and the urgent need for their conservation.
Author: S.K. Jain
Publisher: Springer
ISBN: 0585329117
Category : Science
Languages : en
Pages : 298
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Book Description
An increasing variety of biological problems involving resource management, conservation and environmental quality have been dealt with using the principles of population biology (defined to include population dynamics, genetics and certain aspects of community ecology). There appears to be a mixed record of successes and failures and almost no critical synthesis or reviews that have attempted to discuss the reasons and ways in which population biology, with its remarkable theoretical as well as experimental advances, could find more useful application in agriculture, forestry, fishery, medicine and resource and environmental management. This book provides examples of state-of-the-art applications by a distinguished group of researchers in several fields. The diversity of topics richly illustrates the scientific and economic breadth of their discussions as well as epistemological and comparative analyses by the authors and editors. Several principles and common themes are emphasized and both strengths and potential sources of uncertainty in applications are discussed. This volume will hopefully stimulate new interdisciplinary avenues of problem-solving research.
Author: John Orvel Sawyer
Publisher: California Native Plant Society
ISBN:
Category : Science
Languages : en
Pages : 1316
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Book Description
Author: Andrew S. Pullin
Publisher: Cambridge University Press
ISBN: 1139441310
Category : Nature
Languages : en
Pages : 331
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Book Description
Conservation biology is fast emerging as a major new discipline, which incorporates biological principles in the design of effective strategies for the sustainable management of populations, species and entire ecosystems. This beautifully illustrated textbook introduces students to conservation biology, the science of preserving biodiversity. It begins by taking the reader on a tour of the many and varied ecosystems of our planet, providing a setting in which to explore the factors that have led to the alarming loss of biodiversity that we now see. In particular the fundamental problems of habitat loss and fragmentation, habitat disturbance and the non-sustainable exploitation of species in both aquatic and terrestrial ecosystems are explored. The methods that have been developed to address these problems, from the most traditional forms of conservation, to new approaches at genetic to landscape scales are then discussed, showing how the science can be put into practice.
Author: Thomas S. Elias
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 648
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Book Description
