Overwintering waterfowl on Swiss lakes: how are abundance and species richness influenced by trophic status and lake morphology? Werner Suter OriginalPaper Pages: 1 - 14
Responses of breeding duck populations to changes in food supply Arnthor GardarssonArni Einarsson OriginalPaper Pages: 15 - 27
The diet of Herring Gulls (Larus argentatus) during winter and early spring on the lower Great Lakes P. J. EwinsD. V. WeselohP. Mineau OriginalPaper Pages: 39 - 55
Fish-eating bird abundance in oligotrophic lakes in Kejimkujik National Park, Nova Scotia, Canada J. KerekesR. TordonL. Risk OriginalPaper Pages: 57 - 61
Abundance and feeding of wintering and migrating aquatic birds in two sampling areas of Lake Balaton in 1983–1985 J. E. Ponyi OriginalPaper Pages: 63 - 69
Wading bird use of established and newly created reactor cooling reservoirs at the Savannah River Site, near Aiken, South Carolina, USA Keith L. BildsteinDale E. GawlikGary R. Wein OriginalPaper Pages: 71 - 82
Trophic web structure in a shallow eutrophic lake during a dominance shift from phytoplankton to submerged macrophytes A. HargebyG. AnderssonS. Johansson OriginalPaper Pages: 83 - 90
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. WarkeK. R. DayR. D. Davidson OriginalPaper Pages: 91 - 100
Aquatic bird densities in two coastal lagoon systems in Chiapas State, Mexico, a preliminary assessment R. AcunaF. ContrerasJ. Kerekes OriginalPaper Pages: 101 - 106
Bird abundance and species richness on Florida lakes: influence of trophic status, lake morphology, and aquatic macrophytes Mark V. HoyerDaniel E. Canfield Jr. OriginalPaper Pages: 107 - 119
Nutrient additions by waterfowl to lakes and reservoirs: predicting their effects on productivity and water quality B. A. MannyW. C. JohnsonR. G. Wetzel OriginalPaper Pages: 121 - 132
The importance of avian-contributed nitrogen (N) and phosphorus (P) to Lake Grand-Lieu, France Loïc MarionPhilippe ClergeauGeorges Bertru OriginalPaper Pages: 133 - 147
Aquatic bird populations as possible indicators of seasonal nutrient flow at Ichkeul Lake, Tunisia Alain TamisierCharles Boudouresque OriginalPaper Pages: 149 - 156
Feeding of ducks and their effects on water quality Géza GereSándor Andrikovics OriginalPaper Pages: 157 - 161
Eutrophication and black swan (Cygnus atratus Latham) populations: tests of two simple relationships Sally L. McKinnonS. F. Mitchell OriginalPaper Pages: 163 - 170
Use of boreal forested wetlands by Pacific loons (Gavia pacifica Lawrence) and horned grebes (Podiceps auritus L.): relations with limnological characteristics P. J. HeglundJ. R. JonesM. S. Kaiser OriginalPaper Pages: 171 - 183
Use of lakes by black duck broods in relation to biological, chemical, and physical features Cynthia A. StaicerBill FreedmanTom Pollock OriginalPaper Pages: 185 - 199
Patterns of lake acidity and waterfowl communities Johan ElmbergKjell SjöbergHannu Pöysä OriginalPaper Pages: 201 - 206
Duckling response to changes in the trophic web of acidified lakes Jean-Luc DesGrangesChristian Gagnon OriginalPaper Pages: 207 - 221
Biomechanics and foraging profitability: an approach to assessing trophic needs and impacts of diving ducks James R. Lovvorn OriginalPaper Pages: 223 - 233
Influence of macroinvertebrates and macrophytes on waterfowl utilization of wetlands in the Prairie Pothole Region of northwestern Wisconsin Richard A. LillieJames O. Evrard OriginalPaper Pages: 235 - 246
Habitat distribution of the mallard in relation to vegetation structure, food, and population density P. NummiH. PöysäK. Sjöberg OriginalPaper Pages: 247 - 252
Food supply and the effects of recreational disturbance on the abundance and distribution of wintering Pochard on a gravel pit complex in southern Britain A. D. FoxT. A. JonesA. D. Q. Agnew OriginalPaper Pages: 253 - 261
Effects of weather and tides on feeding and flock positions of wintering redheads in the Chandeleur Sound, Louisiana Thomas C. MichotE. Barry MoserWayne Norling OriginalPaper Pages: 263 - 278
Use of saltwater and freshwater habitats by wintering redheads in southern Texas Marc C. Woodin OriginalPaper Pages: 279 - 287
Habitat selection and survival of Common Goldeneye (Bucephala clangula) broods — preliminary results Hannu PöysäJuha Virtanen OriginalPaper Pages: 289 - 296
Breeding bird communities and environmental variable correlates of Scottish peatland wetlands A. D. FoxM. C. Bell OriginalPaper Pages: 297 - 307
Waterfowl-wetland relationships in the Aspen Parkland of British Columbia: comparison of analytical methods Jean-Pierre L. SavardW. Sean BoydG. E. John Smith OriginalPaper Pages: 309 - 325
Assessment of Grey Heron predation on fish communities: the case of the largest European colony Eric FeunteunLoïc Marion OriginalPaper Pages: 327 - 344
Presence or absence of fish as a cue to macroinvertebrate abundance in boreal wetlands Mark L. MalloryPeter J. BlancherDonald K. McNicol OriginalPaper Pages: 345 - 351
Impact of Great Crested Grebes (Podiceps cristatus L.) on fish ponds Paula UlenaersJanine van Vessem OriginalPaper Pages: 353 - 366
Effects of Nile perch (Lates niloticus) introduction into Lake Victoria, East Africa, on the diet of Pied Kingfishers (Ceryle rudis) Jan H. WaninkKees (P. C.) Goudswaard OriginalPaper Pages: 367 - 376
Possible competitive interactions between overwintering tufted duck (Aythya fuligula (L.)) and fish populations of Lough Neagh, Northern Ireland: evidence from diet studies Denise K. WinfieldIan J. Winfield OriginalPaper Pages: 377 - 386
Tufted Duck (Aythya fuligula) habitat use and brood survival increases after fish removal from gravel pit lakes N. Giles OriginalPaper Pages: 387 - 392
Activity budgets of a marked common loon (Gavia immer) nesting population David C. Evers OriginalPaper Pages: 415 - 420
Responses of breeding common loons to human activity in upper Michigan James A. Caron Jr.William L. Robinson OriginalPaper Pages: 431 - 438
Susceptibility to freshwater acidification by two species of loon: Red-throated Loon (Gavia stellata) and Arctic Loon (Gavia arctica) in southwest Sweden Mats O. G. Eriksson OriginalPaper Pages: 439 - 444
Potential risk to common loons (Gavia immer) from methylmercury exposure in acidified lakes A. M. ScheuhammerP. J. Blancher OriginalPaper Pages: 445 - 455
Responses to food web manipulation in a shallow waterfowl lake Mark A. HansonMalcolm G. Butler OriginalPaper Pages: 457 - 466
Mute Swans in Great Britain: a review, current status and long-term trends Jeff KirbySimon DelanyJohn Quinn OriginalPaper Pages: 467 - 482
Nutrient additions to wetlands in the Interlake region of Manitoba, Canada: effects of periodic additions throughout the growing season Henry R. MurkinJ. Bruce PollardR. D. Titman OriginalPaper Pages: 483 - 495
Nutrient additions to wetlands in the Interlake region of Manitoba, Canada: effects of a single pulse addition in spring T. S. GaborH. R. MurkinR. D. Titman OriginalPaper Pages: 497 - 510
Changes in abundance of water birds species in southern Bohemia (Czech Republic) in the last 10 years Petr MusilRoman Fuchs OriginalPaper Pages: 511 - 519
Sackville Waterfowl Park, Sackville, New Brunswick, Canada. Baseline characterization, towards long-term monitoring A. HansonC. EllingwoodA. Smith OriginalPaper Pages: 521 - 524
