Environmental Change and Response in East African Lakes
The idea for this book was born at the June 1996 meeting of the IDEAL Steering Committee in Milwaukee, Wisconsin. We had just completed a successful and stimulating special symposium during the annual meeting of the American Society for Limnology and Oceanography, and enthusiasm was running high for the production of a volume that could assemble in one place the scientific findings that were starting to emerge from East Africa. IDEAL, an International Decade for the East African Lakes, had ended one round of field investigations, many of which had been centered on Lake Victoria. As the climatologists, geologists, paleolimnologists, and biologists displayed their results and debated interpretations, it appeared that some paradigms were shifting, and that new explanations of climate history and modem processes were taking shape. The Steering Committee endorsed the production of a volume that would draw together the different research results that were emerging and which would be representative of the scope of science issues that exist within IDEAL. This book follows in the spirit of The Limnology, Climatology, and Paleoclimatology of the East African Lakes, published in 1996, but has a somewhat different purpose. The previous publication also included original science results, but it was conceived to review the state of knowledge, identify critical problems, and point to new paths of inquiry. It accompanied the development of our first Science and Implementation Plan for the East African Lakes.
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HISTORY AND ONTOGENY OF IDEAL
HISTORICAL FLUCTUATIONS OF LAKE VICTORIA AND OTHER LAKES IN THE NORTHERN RIFT VALLEY OF EAST AFRICA
ANCIENT ANALOGUES FOR RECENT ENVIRONMENTAL CHANGES AT LAKE VICTORIA EAST AFRICA
INITIAL RESULTS OF 1995 IDEAL SEISMIC REFLECTION SURVEY OF LAKE VICTORIA UGANDA AND TANZANIA
ENVIRONMENTAL MAGNETISM OF LATE PLEISTOCENE HOLOCENE SEQUENCES FROM LAKE VICTORIA EAST AFRICA
IMPLICATIONS FOR LAKE LEVEL HISTORY AND INITIATION OF THE VICTORIA NILE
ROLE OF APATITE WEATHERING IN THE EUTROPHICATION OF LAKE VICTORIA
MIXING DEPTH AND CLIMATEDRIVEN CONTROL OF LAKE CONDITION
IMPLICATIONS FOR REFUGE FROM NILE PERCH PREDATION
IMPLICATIONS FOR TROPHIC DYNAMICS OF THE MODERN LAKE
ABRUPT CLIMATIC CHANGES ASSOCIATED WITH THE ARID YOUNGER DRY AS INTERV AL IN AFRICA
LAKES ALBERT AND EDWARD
COMPARISON OF ISOTOPIC RECORDS IN ABIOGENIC AND BIOGENIC CALCITE FROM LAKE TURKANA KENYA
A COMPARISON BETWEEN THE STABLE ISOTOPIC COMPOSITION OF EARLY HOLOCENE AND LATE PLEISTOCENE CARBONATES FR...
A SYNTHESIS OF GEOLOGICAL ARCHAEOLOGICAL AND HISTORICAL INFORMATION
SPATIAL DISTRIBUTION AND EGG PRODUCTION IN LAKE VICTORIA UGANDA
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8"C values 818O values abundance Africa algal biomass aridity Aulacoseira basin Beuning biogenic biomass Butzer calcite carbonates Caridina Caridina nilotica Change and Response Chaoborus chronology climate change concentrations correlation dates diatom dissolved East African Lakes Environmental Change equilibrium fish Gordon and Breach Halfman Hecky high stand historical Holocene IDEAL increased indicate input interval isotopic isotopic composition J. T. Lehman Kelts Kenya Lake Albert Lake Chilwa Lake Edward lake level Lake Malawi Lake Naivasha Lake Stefanie Lake Turkana Lake Victoria lake water late Pleistocene light limnology magnetic susceptibility micrite mixing depth nearshore Nicholson Nile perch nutrient ostracods oxygen paleoclimatology period phosphate photosynthesis phytoplankton pollen primary production radiocarbon rainfall rates ratio record region relatively reported Research Response in East river samples sediment seismic Sieger silica species Stager surface waters T. C. Johnson Table temperature tropical Uganda variability variations water column yr B.P. Zone zooplankton