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"Two whole lake experiments are describes : experimental acidification at Little Rock Lake and the response of Lake Mendota to a natural experiment involving agricultural and urban development. Readers will learn the benefits of doing long-term ecological research, and limnologists will discover the richness of new information derived from studying suites of neighboring lakes across time."--BOOK JACKET.
Principles and Standards for Measuring Net Primary Production in Long-Term Ecological Studies is the first book to establish a standardized method for measuring net primary productivity (NPP) in ecological research. Primary productivity is the rate at which energy is stored in the organic matter of plants per unit area of the earth's surface. As the beginning stage of the carbon cycle, our ability to accurately measure NPP is essential to any ecological analysis, as well as agronomy, forestry, fisheries, limnology and oceanography. In fact, NPP measurements are fundamental to ecosystem studies at thousands of sites around the world.All 26 LTER sites will be expected to collect and report dat...
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Laparoscopic Colorectal Surgery provides an authoritative, team-oriented approach to the latest state-of-the-art laparoscopic colorectal procedures and surgical techniques. Written by pioneers in the field, this text will supply surgeons with all the information necessary to accomplish advanced laparoscopic procedures. Comprehensive discussions of positioning, instrumentation, cannulas, surgical techniques, special considerations, and considerations in cancer surgery are featured for a wide variety of major operative procedures, including - smallbowel resection - abdominoperineal resection - ileocolectomy, right colectomy, and total abdominal colectomy - proctosigmoidectomy - stoma construction and closure using laparoscopic techniques.
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