Media type: E-Article Title: ESTIMATION OF POPULATION PARAMETERS FROM AERIAL COUNTS OF NORTH AMERICAN MALLARDS: A CAUTIONARY TALE Contributor: Lillegård, Magnar; Engen, Steinar; Sæther, Bernt-Erik; GrØtan, Vidar; Drever, Mark C. Published: Wiley, 2008 Published in: Ecological Applications, 18 (2008) 1, Seite 197-207 Language: English DOI: 10.1890/06-2012.1 ISSN: 1051-0761 Keywords: Ecology Origination: Footnote: