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  • 1
    Electronic Resource
    Electronic Resource
    RIVER AVULSIONS AND THEIR DEPOSITS (2004)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Earth and Planetary Sciences 32 (2004), S. 257-285 
    Details
    ISSN: 0084-6597
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Geosciences , Physics
    Notes: Avulsion is the natural process by which flow diverts out of an established river channel into a new permanent course on the adjacent floodplain. Avulsions are primarily features of aggrading floodplains. Their recurrence interval varies widely among the few modern rivers for which such data exist, ranging from as low as 28 years for the Kosi River (India) to up to 1400 years for the Mississippi. Avulsions cause loss of life, property damage, destabilization of shipping and irrigation channels, and even coastal erosion as sediment is temporarily sequestered on the floodplain. They are also the main process that builds alluvial stratigraphy. Their causes remain relatively unknown, but stability analyses of bifurcating channels suggest that thresholds in the relative energy slope and Shields parameter of the bifurcating channel system are key factors.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.earth.32.101802.120201
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Action and Toxicity of Cyclosporine (1986)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Medicine 37 (1986), S. 215-224 
    Details
    ISSN: 0066-4219
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.me.37.020186.001243
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  • 3
    Electronic Resource
    Electronic Resource
    Impact of Bythotrephes longimanus on zooplankton assemblages of Harp Lake, Canada: an assessment based on predator consumption and prey production (2001)
    Oxford, UK : Blackwell Science Ltd
    Freshwater biology 46 (2001), S. 0 
    Details
    ISSN: 1365-2427
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: 1. Following the 1993 invasion of Harp Lake by Bythotrephes longimanus a number of small-bodied zooplankton declined dramatically compared to pre-invasion densities, and some larger species increased. 
2. To test whether these changes were caused by Bythotrephes, we measured its consumption of zooplankton in 1995 and compared this to production by the prey species with which it overlapped spatially and temporally. 
3. On a seasonal basis Bythotrephes consumption was 199 mg dry mass (DM) m−2, or 25% of zooplankton production which was 783 mg DW m−2. However, for some species, such as the small copepod Tropocyclops extensus, consumption greatly exceeded production—this was one of the species noted to decline in Harp Lake following the appearance of Bythotrephes. By contrast, for the larger cladocerans Daphnia galeata mendotae and Holopedium gibberum, consumption was much less than production—these species were observed to increase following the invasion. 
4. Our results thus support the hypothesis that zooplankton changes in Harp Lake were caused by Bythotrephes. We speculate that lower quality prey remaining in Harp Lake may lead to reduced densities of Bythotrephes, or impose strong selective forces that lead to new adaptations by this predator.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2427.2001.00649.x
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