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Food Chains and Webs explains that feeding relationships are at the heart of life on Earth. It looks at the different types of living thing in a food web - from producer to top consumer - as well as food pyramids and topics like bioaccumulation. It tackles common confusions about the science and shows how topics are relevant to the reader.
What are Food Chains and Webs? by Bobbie Kalman,Jacqueline Langille Pdf
Starting with the sun, food chains link together plants and animals in various ecosystems to help them survive. Kids will be fascinated by these chains and their own links to the natural world.
Food Chains and Webs by Louise Spilsbury,Richard Spilsbury Pdf
What are food chains like in different habitats? Who eats whom in forests? Why are decomposers so important? Investigate the curious world of life science. Find out for yourself about food chains and webs through activities that you can do at home. Learn about where all food chains and webs start. See which animals are at the top of a tundra food web. This book will show you the importance of investigating and understanding the world around you.
Prairie Food Chains by Kelley MacAulay,Bobbie Kalman Pdf
Children will enjoy exploring the vast prairies of North America in Prairie Food Chains. Young readers will learn about the different types of prairie habitats, how animals get the nutrients they need, and the fascinating adaptation some prairie animals undergo to survive in their habitats.
Reflecting the recent surge of activity in food web research fueled by new empirical data, this authoritative volume successfully spans and integrates the areas of theory, basic empirical research, applications, and resource problems. Written by recognized leaders from various branches of ecological research, this work provides an in-depth treatment of the most recent advances in the field and examines the complexity and variability of food webs through reviews, new research, and syntheses of the major issues in food web research. Food Webs features material on the role of nutrients, detritus and microbes in food webs, indirect effects in food webs, the interaction of productivity and consumption, linking cause and effect in food webs, temporal and spatial scales of food web dynamics, applications of food webs to pest management, fisheries, and ecosystem stress. Three comprehensive chapters synthesize important information on the role of indirect effects, productivity and consumer regulation, and temporal, spatial and life history influences on food webs. In addition, numerous tables, figures, and mathematical equations found nowhere else in related literature are presented in this outstanding work. Food Webs offers researchers and graduate students in various branches of ecology an extensive examination of the subject. Ecologists interested in food webs or community ecology will also find this book an invaluable tool for understanding the current state of knowledge of food web research.
Often the meanings of words are changed subtly for interesting reasons. The implication of the word 'community' has changed from including all the organisms in an area to only those species at a particular trophic level (and often a taxonomically restricted group), for example, 'bird-community'. If this observation is correct, its probable cause is the dramatic growth in our knowledge of the ecological patterns along trophic levels (I call these horizontal patterns) and the processes that generate them. This book deals with vertical patterns - those across trophic levels -and tries to compensate for their relative neglect. In cataloging a dozen vertical patterns I hope to convince the reader that species interactions across trophic levels are as patterned as those along trophic levels and demand explanations equally forcefully. But this is not the only objective. A limited number of processes shape the patterns of species interaction; to demonstrate their existence is an essential step in understanding why ecosystems are the way they are. To achieve these aims I must resort to both mathematical techniques to develop theories and statistical techniques to decide between rival hypotheses. The level of mathematics is likely to offend nearly everyone. Some will find any mathematics too much, while others will consider the material to be old, familiar ground and probably explained with a poor regard for rigour and generality.
Discusses food chains, food webs, and the flow of energy; the role of producers, consumers, and decomposers in them; the webs of different environments; and how they change over time.
Exploring Food Chains and Food Webs by Ella Hawley Pdf
Explains the predator-prey relationships that all living things are a part of, represented by the food chains and food webs in a variety of habitats, how everything is connected, and how every living organism plays a role.
Ecological Biochemistry by Gerd-Joachim Krauss,Dietrich H. Nies Pdf
The first stand-alone textbook for at least ten years on this increasingly hot topic in times of global climate change and sustainability in ecosystems. Ecological biochemistry refers to the interaction of organisms with their abiotic environment and other organisms by chemical means. Biotic and abiotic factors determine the biochemical flexibility of organisms, which otherwise easily adapt to environmental changes by altering their metabolism. Sessile plants, in particular, have evolved intricate biochemical response mechanisms to fit into a changing environment. This book covers the chemistry behind these interactions, bottom up from the atomic to the system's level. An introductory part explains the physico-chemical basis and biochemical roots of living cells, leading to secondary metabolites as crucial bridges between organisms and the respective ecosystem. The focus then shifts to the biochemical interactions of plants, fungi and bacteria within terrestrial and aquatic ecosystems with the aim of linking biochemical insights to ecological research, also in human-influenced habitats. A section is devoted to methodology, which allows network-based analyses of molecular processes underlying systems phenomena. A companion website offering an extended version of the introductory chapter on Basic Biochemical Roots is available at http://www.wiley.com/go/Krauss/Nies/EcologicalBiochemistry
Secrets of the Garden by Kathleen Weidner Zoehfeld Pdf
Depicts a family of four who make their garden their summer home as they prepare the soil, plant seeds, water the garden, and watch for a harvest of vegetables.
"This book explores the food chains and webs that exist in a mountain habitat. It equips readers with crucial vocabulary, using examples from that habitat to explain the roles of producers, consumers and decomposers, and illustrates how living things depend upon each other. Readers learn how fragile food chains can be, how they can be broken, and what we can do to prevent this."--