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  • Annual Reviews  (1)
  • Springer  (1)
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  • 1
    Electronic Resource
    Electronic Resource
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Environment and Resources 30 (2005), S. 441-473 
    ISSN: 1543-5938
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: We explore the social dimension that enables adaptive ecosystem-based management. The review concentrates on experiences of adaptive governance of social-ecological systems during periods of abrupt change (crisis) and investigates social sources of renewal and reorganization. Such governance connects individuals, organizations, agencies, and institutions at multiple organizational levels. Key persons provide leadership, trust, vision, meaning, and they help transform management organizations toward a learning environment. Adaptive governance systems often self-organize as social networks with teams and actor groups that draw on various knowledge systems and experiences for the development of a common understanding and policies. The emergence of "bridging organizations" seem to lower the costs of collaboration and conflict resolution, and enabling legislation and governmental policies can support self-organization while framing creativity for adaptive comanagement efforts. A resilient social-ecological system may make use of crisis as an opportunity to transform into a more desired state.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Aquatic ecology 32 (1998), S. 323-334 
    ISSN: 1573-5125
    Keywords: microcosm ; ecosystem-level ; productivity gradient ; zooplankton ; phytoplankton
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract I examined the effect of temperature and light on ecosystem composition was examined in a two factorial design using microcosms set up from natural rockpool communities. Furthermore I tested if the effect of temperature on different ecosystem components was dependent on the initial community composition by using communities from seven different rockpools that differed considerably in standing stocks of phytoplankton, zooplankton, zooplankton species composition, sediment mass and nutrient concentrations. Increased light caused phytoplankton biomass to decrease while zooplankton biomass and sediment dry weight was positively correlated to increased light levels. The effect of temperature on phytoplankon was largely determined by community type. Zooplankton biomass decreased with increasing temperature between 10 °C and 25 °C and this trend was not significantly different between different community types. A negative effect on zooplankton biomass was found at 7 °C in one community. I propose, that the stronger temperature sensitivity of metabolical cost for herbivorous organisms compared to algae productivity might explain the decrease in zooplankton biomass at high temperatures. I discuss how edibility of algae and grazer characteristics may influence the response of ecosystem composition to temperature.
    Type of Medium: Electronic Resource
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