00000cam 2200000za 4500 9.855817 CaOODSP 20241203113642 cr ||||||||||| 180426s1984 onca|||#o f00| 0 eng d CaOODSP eng n-cn--- CW69-1/53E-PDF Gaston, A. J. The interpretation of aerial surveys for seabirds [electronic resource] : some effects of behaviour / A.J. Gaston, G.E.J. Smith. [Ottawa] : Canadian Wildlife Service, c1984. 20 p. : ill. Occasional paper ; no. 53 Digitized edition from print [produced by Environment and Climate Change Canada]. Issued also in French under title: Interprétation des relevés aériens d'oiseaux de mer : certains effets du comportement. Includes bibliographical references. "Aerial surveys have been used extensively to observe the distribution and abundance of marine birds at sea. Although biases caused by weather and sea conditions, aircraft type, and the state and experience of the observer have been discussed by others, little has been done to interpret the effect of biological variables inherent in the behaviour of the birds. In this paper we explore five ways in which the analysis of aerial survey data can enhance our understanding of seabird distributions compared with inspection of the raw data alone"--Abstract. gccst Aquatic birds gccst Population distribution Smith, G. E. J. (George E. John) Canada. Environment Canada. Canadian Wildlife Service. Interprétation des relevés aériens d'oiseaux de mer (CaOODSP)9.856563 Occasional paper (Canadian Wildlife Service) no. 53 (CaOODSP)9.504780 PDF 3.71 MB https://publications.gc.ca/collections/collection_2018/eccc/CW69-1-53-eng.pdf