The influence of habitat features on grassland birds nesting in the Prairie Pothole Region of North Dakota / David Joesph Horn
Material type:
TextSeries: Thesis ; (Ph.D.)Publication details: Ames, IA : Iowa State University, 2000.Description: v, 204 p. : 28 cm. illOnline resources: Abstract: Results of habitat fragmentation studies on grassland and wetland birds are not consistent. Some studies have found positive relationships among abundance, nest success, field size, and distance to edges, whereas others have found no relationship. One reason for differing results may be the landscape composition in which the study took place. I examined how landscape composition influenced relations among: 1) occurrence and abundance of grassland songbirds and field size, and 2) nest success fo ducks, field size, and edges. I also investigated the effects of mowing on grassland songbirds, and how landscape features, such as amount of perennial grassland, and predator community composition influenced the nest success of ducks in fields.
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Theses
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Thesis(Ph.D.)--Iowa State University, 2000.
Includes bibliographical references.
Results of habitat fragmentation studies on grassland and wetland birds are not consistent. Some studies have found positive relationships among abundance, nest success, field size, and distance to edges, whereas others have found no relationship. One reason for differing results may be the landscape composition in which the study took place. I examined how landscape composition influenced relations among: 1) occurrence and abundance of grassland songbirds and field size, and 2) nest success fo ducks, field size, and edges. I also investigated the effects of mowing on grassland songbirds, and how landscape features, such as amount of perennial grassland, and predator community composition influenced the nest success of ducks in fields.