Complex Interactions in Lake CommunitiesIn its statutory authority (National Science Foundation Act of 1950, as amended), the NSF is directed to both initiate and support basic scientific research. In its Ecology Program, one mode of initiating research is to en courage the development of new ideas through advisory workshops. The NSF is specifically directed to strengthen our nation's research potential. In addition, stimulating new approaches to research will continue to be prominent in the coming years as federal attention is given to increasing the innovativeness and competitiveness of the U. S. in science and engineering. A decision to initiate a workshop does not arise de novo in the Ecology Program. Rather, it emerges from panel discussions, conversations with in vestigators at meetings or on the phone, and from discussions between pro gram officers in the Division of Biotic Systems and Resources. This workshop was developed to provide advice to the NSF and the lim nological community. Some NSF perceptions on future funding for ecolog ical research on lake communities are presented here. Researchers often mentioned a paucity of innovative lake ecology at the community level. This perception was accompanied by a certain frustration since lakes probably have the best empirical data base of any natural environment and should continue to lead in the development of ecological concepts. Members of NSF advisory panels sometimes expressed similar concerns during consid eration of proposals for lake research. |
Contents
Patterns and Surprises in Lake Food Webs | 5 |
Predator Regulation and Primary Production Along | 45 |
Microbial Food Webs in Freshwater Planktonic | 69 |
Copyright | |
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abundance aggregation algae algal analysis aquatic communities autotrophic bacteria benthic biomass bottom-up carbon Carpenter Chaoborus community ecology community structure competition complex interactions components consumer copepods cycle Daphnia density direct and indirect dynamics Ecol ecologists ecosystem effects eutrophic experimental experiments factors Fahnenstiel fish predation fisheries food chain food web Forney freshwater function grazing habitat heterotrophic higher trophic levels impacts on aquatic important increase J. F. Kitchell Lake Michigan Limnol limnology littoral zone macrophytes manipulations marine microbial community microbial loop munity Neill nutrient Oceanogr Oneida Lake organisms parameters patterns pelagic zone Persson phytoplankton picoplankton piscivore planktivorous planktivorous fish plankton plankton community populations Porter potential predict prey primary production processes rates recruitment relationship relative response rotifers scale Scavia seasonal sediments Shapiro spatial species composition Stockner studies temporal top-down trophic levels variability variance W. C. Kerfoot walleye Werner Wetzel whole-lake yellow perch zooplankton zooplankton community