00000nam 2200000za 4500 9.849547 CaOODSP 20241203113641 cr ||||||||||| 180104s1978 onca||||o f000 0 eng d CaOODSP eng n-cnp-- CW69-9/90E-PDF Hochbaum, George Sutton, 1946- A forecast of long-term trends in breeding mallard populations on the Canadian prairies [electronic resource] / by G.S. Hochbaum and F.D. Caswell. [Ottawa] : Canadian Wildlife Service, 1978. [5] p. : figs. Progress notes ; no. 90 "August 1978." Digitized edition from print [produced by Environment and Climate Change Canada]. Issued also in French under title: Perspectives de l'évolution démographique à long terme des effectifs du canard malard nichant dans les Prairies canadiennes. Includes bibliographical references. "A simulation model was developed to forecast future trends in Mallard breeding populations on the Canadian prairies, and to evaluate management policies and programs concerning harvest and recruitment"--Abstract. gccst Birds gccst Population distribution Caswell, F. D. Canada. Environment Canada. Canadian Wildlife Service. Perspectives de l’évolution démographique à long terme des effectifs du canard malard nichant dans les Prairies canadiennes (CaOODSP)9.859721 Progress notes (Canadian Wildlife Service) no. 90 (CaOODSP)9.504439 PDF 393 KB https://publications.gc.ca/collections/collection_2018/eccc/CW69-9-90-eng.pdf