What determines the number and size of the seeds produced by a plant? How often should it reproduce them? How often should a plant produce them? Why and how are seeds dispersed, and what are the implications for the diversity and composition of vegetation? These are just some of the questions tackled in this wide-ranging review of the role of seeds in the ecology of plants. The authors bring together information on the ecological aspects of seed biology, starting with a consideration of reproductive strategies in seed plants and progressing through the life cycle, covering seed maturation, dispersal, storage in the soil, dormancy, germination, seedling establishment, and regeneration in the field. The text encompasses a wide range of concepts of general relevance to plant ecology, reflecting the central role that the study of seed ecology has played in elucidating many fundamental aspects of plant community function.
In response to enormous recent advances, particularly in molecular biology, the authors have revised their warmly received work. This new edition includes updates on seed development, gene expression, dormancy, and other subjects. It will serve as the field's standard textbook and reference source for many years to come.
The definitive examination of oak forest evolutionary ecology. Seed dispersal is a critical stage in the life cycle of most flowering plants. The process can have far-reaching effects on a species' biology, especially numerous aspects of its ecology and evolution. This is particularly the case for the oaks, in which the dispersal of the acorn is tied to numerous tree characteristics, as well as the behavior and ecology of the animals that feed on and move these seeds to their final destination. Forest structure, composition, and genetics often follow directly from the dispersal process—while also influencing it in turn. In Oak Seed Dispersal, Michael A. Steele draws on three decades of field research across the globe (e.g., the United States, Mexico, Central America, Europe, and China) to describe the interactions between oaks and their seed consumers. Rodents, birds, and insects, he writes, collectively influence the survival, movement, and germination of acorns, as well as the establishment of seedlings, often indicating a coevolutionary bond between oaks and their seed consumers. This bond can only be understood by unraveling the complex interactions that occur in the context of factors such as partial seed consumption due to acorn chemistry, scatterhoarding, predation of the seed consumers by other organisms, and the limiting effects of masting on insect, rodent, and jay damage. Offering new insights on how animal-mediated dispersal drives ecological and evolutionary processes in forest ecosystems, Oak Seed Dispersal also includes an overview of threatened oak forests across the globe and explains how a lack of acorn dispersal contributes to many important conservation challenges. Highly illustrated, the book includes photographs of key dispersal organisms and tactics, as well as a foreword by Stephen B. Vander Wall, a leading authority on food hoarding and animal-mediated seed dispersal, and beautiful artwork by Tad C. Theimer, also an accomplished ecologist.
It demonstrates that in his late career Thoreau was working as scientist and poet simultaneously. This study further explorers how Thoreau managed the philosophical and rhetorical tensions involved in bridging the supposed gap between science and poetry, and how, in his later career, he embraced the empirical method of scientific discovery while challenging the reductive assumptions of scientific materialism."--BOOK JACKET.
Drawing on research data, the authors take readers beyond mere nutritional facts and share clinical discoveries on what and how foods stimulate the body's natural ability to rejuvenate and heal.
Written by an experienced teacher of students, this book aims to motivate A-Level students. Questions are presented in two styles, 'Quick Check' and 'Food for Thought', to give opportunities to practise both recall and analytical skills. It includes colour illustrations and graduated questions to practise recall and analytical skills.
An accessible resource that can be used alongside the Advanced Biology text or any other core Advanced Biology text, as it covers the practical element for AS and A Level Biology.
Using tribal tales from across the country as inspiration, the authors provide practical information about seed preservation, planting and maintaining the garden, reaping and cooking the harvest.
This interdisciplinary curriculum in botany and plant ecology focuses on environmental and stewardship issues using the framework of Native American stories as an introduction to the topics.
The major new course text has been written by experienced authors to provide coverage of the Advanced Subsidiary (AS) and Advanced GCE Biology and Human Biology specifications in a single book. Advanced Biology provides clear, well-illustrated information, which will help develop a full understanding of biological structure and function and of relevant applications. The topics have been carefully organised into parts, which give a logical sequence to the book. This new text has been developed to replace the best-selling titles Biology: Principles and Processes and Biology, A Functional Approach. Features include: full-colour design with clear diagrams and photographs; up-to-date information on biotechnology, health, applied genetics and ecology; clearly written text using the latest Institute of Biology terminology; a useful summary and a bank of practice questions at the end of every chapter; support boxes help bridge the gap from GCSE or equivalent courses; extension boxes providing additional depth of content - some by guest authors who are experts in their field; and a comprehensive index so you can quickly locate information with ease. There is also a website providing additional support that you can access directly at www.advancedbiolgy.co.uk.
The newly revised and updated reference guide to herbal medicine offers readers sound advice on how to use more than 100 popular plants for healing purposes.
Now published by Academic Press and revised from the author's previous Five Kingdoms Third edition, this extraordinary, all inclusive catalogue of the world's living organisms describes the diversity of the major groups, or phyla, of nature's most inclusive taxa. Developed after consultation with specialists, this modern classification scheme is consistent both with the fossil record and with recent molecular, morphological and metabolic data. Generously illustrated, now in full color, Kingdoms and Domains is remarkably easy to read. It accesses the full range of life forms that still inhabit our planet and logically and explicitly classifies them according to their evolutionary relationships. Definitive characteristics of each phylum are professionally described in ways that, unlike most scientific literature, profoundly respect the needs of educators, students and nature lovers. This work is meant to be of interest to all evolutionists as well as to conservationists, ecologists, genomicists, geographers, microbiologists, museum curators, oceanographers, paleontologists and especially nature lovers whether artists, gardeners or environmental activists.Kingdoms and Domains is a unique and indispensable reference for anyone intrigued by a planetary phenomenon: the spectacular diversity of life, both microscopic and macroscopic, as we know it only on Earth today. - New Foreword by Edward O. Wilson - The latest concepts of molecular systematics, symbiogenesis, and the evolutionary importance of microbes - Newly expanded chapter openings that define each kingdom and place its members in context in geological time and ecological space - Definitions of terms in the glossary and throughout the book - Ecostrips, illustrations that place organisms in their most likely environments such as deep sea vents, tropical forests, deserts or hot sulfur springs - A new table that compares features of the most inclusive taxa - Application of a logical, authoritative, inclusive and coherent overall classification scheme based on evolutionary principles
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