Overview

The algae is eaten by a clam that's eaten by a salmon that's eaten by a bear. This book explores the species found in river food chains and webs, and discusses why these food chains and webs need to be protected.

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9781432938680

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After reading one of more of these books, students should know exactly what constitutes a food chain and a food web. Each book defines its habitat, explaining a food chain, focusing on the parts of the food chain, describing particular food chains native to geographical regions, and explaining how the habitats are being harmed. With clear diagrams, color photographs, and maps, the visual aspects supplement the text beautifully. The books do a good job of explaining the part that each link in the food chain plays. Sidebars on particular features of a habitat, endangered animals of that habitat, and other interesting facts add variety to the visual layout. A strong theme of environmentalism runs through every one of the books, culminating in a final chapter with Top 10 Things You Can Do to protect the particular food chain and habitat. This series would provide good supplementary material for science classes and geography classes. Young activists might want to pick these up for independent reading. Bibliography. Glossary. Websites. Index. - Mary Northrup, Reference Librarian, Metropolitan Community College-Maple Woods, Kansas City, Missouri Library Media Connection January/February 2011-- Library Media Connection Featuring colorful glossy images and accessible prose, this entry in the Protecting Food Chains series offers a good introduction to the web of life in rivers. The opening chapter, What Is a River Food Chain? explains how each organism relies on another for survival, underscoring the importance of protecting both the habitat and its wildlife. Subsequent chapters discuss primary and secondary consumers; decomposers; world rivers, from the Mississippi to the Ganges; and the effects of climate, river currents, and human activities on rivers. Conservation issues are highlighted throughout, with specific suggestions for youth to get involved. The straightforward, frequently lively text illuminates concepts with well-chosen examples and sidebars, which are further illustrated in the mix of visuals that include diagrams of river food chains and photos of diverse river creatures, from archerfish to manatees to a graphic close-up of a crayfish feasting on a dead carp. An informative, thought-provoking resource that conveys the fragile, interconnected web that holds ecosystems together. A glossary and lists of further resources conclude. -- Shelle RosenfeldBooklist3/1/2011-- Booklist

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