The ecology and waterfowl utilization of the John Lusby National Wildlife Area

This study was carried out in and around the John Lusby National Wildlife Area, Amherst Point, Nova Scotia, between February, 1969 and May, 1970. The primary objectives of the study were to provide an ecological description of the Wildlife Area; to identify the major food sources available to migrating and resident waterfowl and to measure waterfowl use of those foods; and to make recommendations for future management of the area. Data were obtained for the above objectives and are reported in the thesis. The Wildlife Area is a salt marsh which has evolved through tidal sedimentation. About 30 salt pans are scattered throughout the marsh. The major floral species in the study area are Spartina alterniflora, S. patens, Puccinellia maritima and Ruppia maritima. The principal food of Canada geese (Branta canadensis) appeared to be the leaves of P. maritima. The main fall food of black ducks (Anas rubripes) was seeds of S. alterniflora. The primary fall foods of green-winged teal (A. carolinensis) were seeds of Spartina sp. and Atriplex sp. Seeds of Atriplex sp., S. alterniflora and R. maritima comprised the major fall foods of blue-winged teal (A. discors). All these foods were readily available in the study area. Management recommendations included measures to improve public relations between local land owners and wildlife officials, and the establishment of an impoundment area to improve nesting and brood habitat for ducks.