Proceedings of a symposium held in Sackville, New Brunswick, Canada, in August 1991
نام نخستين پديدآور
edited by Joseph J. Kerekes.
وضعیت نشر و پخش و غیره
محل نشرو پخش و غیره
Dordrecht
نام ناشر، پخش کننده و غيره
Springer Netherlands
تاریخ نشرو بخش و غیره
1994
مشخصات ظاهری
نام خاص و کميت اثر
(544 pages)
فروست
عنوان فروست
Developments in hydrobiology, 96.
یادداشتهای مربوط به مندرجات
متن يادداشت
Preface. I: Bird Populations in Lake Ecosystems. II: Nutrient Import and Export by Bird. III: Bird Response to Nutrient Levels and Acidification. IV: Food Choices and Habitat Selection. V: Bird Fish Interactions. VI: The Status of Loons. VII: Management of Aquatic Bird Populations.
یادداشتهای مربوط به خلاصه یا چکیده
متن يادداشت
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.
عنوان اصلی به زبان دیگر
عنوان اصلي به زبان ديگر
Proceedings of a symposium held in Sackville, New Brunswick, Canada in August 1991
موضوع (اسم عام یاعبارت اسمی عام)
موضوع مستند نشده
Lake ecology -- Congresses.
موضوع مستند نشده
Water birds -- Food -- Congresses.
موضوع مستند نشده
Water birds -- Habitat -- Congresses.
رده بندی کنگره
شماره رده
QL698
.
95
نشانه اثر
E358
1994
نام شخص به منزله سر شناسه - (مسئولیت معنوی درجه اول )