Aquatic Birds in the Trophic Web of Lakes

1. Front Matter

   Pages i-viii

   PDF

2. Bird populations in lake ecosystems

   1. Overwintering waterfowl on Swiss lakes: how are abundance and species richness influenced by trophic status and lake morphology?

      • Werner Suter

      Pages 1-14

   2. Responses of breeding duck populations to changes in food supply

      • Arnthor Gardarsson, Arni Einarsson

      Pages 15-27

   3. Birds in the trophic web of Lake Esrom, Denmark

      • Jan Woollhead

      Pages 29-38

   4. The diet of Herring Gulls (Larus argentatus) during winter and early spring on the lower Great Lakes

      • P. J. Ewins, D. V. Weseloh, J. H. Groom, R. Z. Dobos, P. Mineau

      Pages 39-55

   5. Fish-eating bird abundance in oligotrophic lakes in Kejimkujik National Park, Nova Scotia, Canada

      • J. Kerekes, R. Tordon, A. Nieuwburg, L. Risk

      Pages 57-61

   6. Abundance and feeding of wintering and migrating aquatic birds in two sampling areas of Lake Balaton in 1983–1985

      • J. E. Ponyi

      Pages 63-69

   7. Wading bird use of established and newly created reactor cooling reservoirs at the Savannah River Site, near Aiken, South Carolina, USA

      • Keith L. Bildstein, Dale E. Gawlik, Dan P. Ferral, I. Lehr Brisbin Jr, Gary R. Wein

      Pages 71-82

   8. Trophic web structure in a shallow eutrophic lake during a dominance shift from phytoplankton to submerged macrophytes

      • A. Hargeby, G. Andersson, I. Blindow, S. Johansson

      Pages 83-90

   9. Cormorant (Phalacrocorax carbo [L]) populations and patterns of abundance at breeding and feeding sites in Northern Ireland, with particular reference to Lough Neagh

      • G. M. A. Warke, K. R. Day, J. E. Greer, R. D. Davidson

      Pages 91-100

   10. Aquatic bird densities in two coastal lagoon systems in Chiapas State, Mexico, a preliminary assessment

       • R. Acuna, F. Contreras, J. Kerekes

       Pages 101-106

   11. Bird abundance and species richness on Florida lakes: influence of trophic status, lake morphology, and aquatic macrophytes

       • Mark V. Hoyer, Daniel E. Canfield Jr.

       Pages 107-119

3. Nutrient import and export by bird

   1. Nutrient additions by waterfowl to lakes and reservoirs: predicting their effects on productivity and water quality

      • B. A. Manny, W. C. Johnson, R. G. Wetzel

      Pages 121-132

   2. The importance of avian-contributed nitrogen (N) and phosphorus (P) to Lake Grand-Lieu, France

      • Loïc Marion, Philippe Clergeau, Luc Brient, Georges Bertru

      Pages 133-147

   3. Aquatic bird populations as possible indicators of seasonal nutrient flow at Ichkeul Lake, Tunisia

      • Alain Tamisier, Charles Boudouresque

      Pages 149-156

   4. Feeding of ducks and their effects on water quality

      • Géza Gere, Sándor Andrikovics

      Pages 157-161

4. Bird response to nutrient levels and acidification

   1. Eutrophication and black swan (Cygnus atratus Latham) populations: tests of two simple relationships

      • Sally L. McKinnon, S. F. Mitchell

      Pages 163-170

   2. Use of boreal forested wetlands by Pacific loons (Gavia pacifica Lawrence) and horned grebes (Podiceps auritus L.): relations with limnological characteristics

      • P. J. Heglund, J. R. Jones, L. H. Frederickson, M. S. Kaiser

      Pages 171-183

   3. Use of lakes by black duck broods in relation to biological, chemical, and physical features

      • Cynthia A. Staicer, Bill Freedman, Diane Srivastava, Nancy Dowd, Jennifer Kilgar, Jill Hayden et al.

      Pages 185-199

   4. Patterns of lake acidity and waterfowl communities

      • Johan Elmberg, Kjell Sjöberg, Petri Nummi, Hannu Pöysä

      Pages 201-206

Birds are an integral part of most freshwater ecosystems (lakes, rivers, wetlands) but their role in the trophic dynamics of these water bodies has often been overlooked. As a conspicuous part of the biota of water bodies, aquatic birds are indicators of their trophic state both in terms of species composition (quality) as well as occupancy and breeding (quantity). Birds may also influence the trophic state of a water body by importing nutrients (.e.g. resident or migrating birds feeding on adjacent watersheds or the sea). Because of anthropogenic activities, predation or their mobility, birds may not utilize otherwise suitable aquatic habitat. These factors complicate the relationship between aquatic bird production and the trophic status of habitats. As a consequence, the role of aquatic birds in freshwater ecosystems has usually been ignored.
This volume contains a wide range of papers selected from those presented at the symposium and reviewed.

• bird
• ecosystem
• fish
• lake
• trophic dynamics
• wetland

Policies and ethics