Plant Ecology

Plant Ecology
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Plant Ecology

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Publisher: Agrobios Publications
ISBN: 9788177542936
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PREFACE
Ecology or ecological science is the study of the relationship of plants and animals to their physical and biological environment. It is a scientific study of the distribution and abundance of living organisms and how these properties are affected by interactions between the organisms and their environment. The environment of an organism includes both the physical properties, which can be described as the sum of local abiotic factors like solar insolation, climate and geology, as well as the other organisms that share its habitat. Hence it is a synthetic branch of science which obtains source materials from several other disciplines like climatology, geography, geology, limnology, mathematics, physics, chemistry, microbiology besides other branches of biology. Therefore, ecology deals with the study of interaction of living beings among themselves as well as their physical environment. The present book includes various aspects of plant ecology like Plant Ecology An Introduction, Living and Nonliving Components, Climatic Factors, Topographic Factors, Biotic Factors, Edaphic Soil Factor, Ecosystems, Population and Community Ecology, Community Dynamics Ecological Succession , Bio-Productivity, Plant Geography and Biomes of the World, Stress Ecology And Ecological Adaptations, Autecology, Genecology Ecological Concept of Species and Individuals, Biogeochemical Cycles, Red Data and Green Data Book, and Biodiversity The Natural Biological Capital of the Earth. The present book is an effort to put recently acquired information at one place. And will be useful for the students of Under- and Post graduate students of Ecology. The text has been prepared with the help of authentic literature. We do not claim for our original writing, however, the way of presentation of the text is new. We thankfully acknowledge all the sources. We shall welcome the suggestions for improvement for the next edition.
We are thankful to Dr. S. S. Purohit, Ex-Head, Post Graduate Department of Botany, Dungar College, Bikaner for his support and direction in preparing the text. We express our gratitude to the publisher for cooperation and attractive presentation of the text. Authors
CONTENTS
1
PLANT ECOLOGY AN INTRODUCTION ............................................ 1 History of Ecology ....................................................................................... 2 18th and 19th Century - Ecological Murmurs ................................................... 3 Early 20th Century - Expansion of Ecological Thought.................................... 4 The Ecosystem Arthur Tansley ..................................................................... 4 Ecological Succession - Henry Chandler Cowles ............................................ 5 Modern Ecological Theory ........................................................................... 6 Influence of Ecology on Social Sciences and Humanities ............................... 6 James Lovelock and the Gaia hypothesis ...................................................... 7 Scope of Plant Ecology ................................................................................ 8