Author: Gary KrapuPublisher:
ISBN:
Category : Ducks
Languages : en
Pages :
Book Description
Demonstrates how wet weather conditions can substantially extend the duck breeding season in the Prairie Pothole Region.
Factors Influencing Summer Breeding in Prairie Ducks
Author: Gary KrapuPublisher:
ISBN:
Category : Ducks
Languages : en
Pages :
Book Description
Demonstrates how wet weather conditions can substantially extend the duck breeding season in the Prairie Pothole Region.
Ecological Factors Affecting Waterfowl Production in the Alberta Parklands
Author: Allen G. SmithPublisher:
ISBN:
Category : Bird populations
Languages : en
Pages : 60
Book Description
Prairie Ducks
Author: Lyle K. SowlsPublisher: Stackpole Books
ISBN: 0811766721
Category : Nature
Languages : en
Pages : 229
Book Description
The success of duck hunters throughout much of North America each fall depends to a large degree upon the spring productivity of the breeding waterfowl in the northern prairie states and the central provinces of Canada. In southern Manitoba, in the Waterfowl Research Station, a privately endowed outdoor laboratory owned by the North American Wildlife Foundation and operated by the Wildlife Management Institute. Its principal purpose is to determine facts useful in the management and perpetuation of this international migratory resource. When Dr. Lyle K. Sowls began his studies at Delta in 1946, many wide gaps remained in the knowledge of the relationship of breeding ducks to their home range. There were many scattered observations and a growing mass of data accumulated through the study of banding returned; but the activities of individual ducks during the critical spring months and the activities and the fate of broods each summer remained largely a mystery. Sowls, working toward his doctorate in wildlife management as a graduate student of the University of Wisconsin, studied the waterfowl at Delta for five years in an attempt to plug some of those gaps through intensive study of the waterfowl on one limited are. His studies developed new techniques and brought out new facts that were startling even to waterfowl biologists, facts of prime importance to the duck hunter or to any one interest in the future of America’s waterfowl flights. As a result of Dr. Sowls’ research, new light has been shed on such factors as predation, renesting, and homing habits of the important species of game ducks, and already have become the basis for revised hunting regulations and give a new understanding of waterfowl problems.
Effects of Vegetation Manipulation on Breeding Waterfowl in Prairie Wetlands
Author: Harold A. KantrudPublisher:
ISBN:
Category : Waterfowl management
Languages : en
Pages : 24
Book Description
The Ecology and Management of Breeding Waterfowl
Author: Publisher: U of Minnesota Press
ISBN: 9781452900162
Category : Electronic books
Languages : en
Pages : 812
Book Description
Habitat Factors Influencing Duck Brood Use of Semi-permanent and Permanent Prairie Potholes in North Dakota
Author: David L. TraugerPublisher:
ISBN:
Category : Ducks
Languages : en
Pages : 35
Book Description
Prairie Ducks
Author: Lyle K. SowlsPublisher: Lincoln : University of Nebraska Press
ISBN:
Category : Nature
Languages : en
Pages : 240
Book Description
Role of Hand-reared Ducks in Waterfowl Management
Author: Ecological Factors Affecting Waterfowl Production in the Saskatchewan Parklands
Author: Jerome H. StoudtPublisher:
ISBN:
Category : Animal ecology
Languages : en
Pages : 68
Book Description
Aquatic Birds in the Trophic Web of Lakes
Author: Joseph J. KerekesPublisher: Springer Science & Business Media
ISBN: 9401111286
Category : Science
Languages : en
Pages : 513
Book Description
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.