Literature type: Scientific
Journal: Fauna Norv. Ser. C., Cinclus
Volume: 19 , Pages: 69-76.
Language:
English
Full reference: Øien, I.J., Aarvak, T., Lorentsen, S.-H. & Bangjord, G. 1996. Use of individual differences in belly patches in population monitoring of Lesser White-fronted Goose Anser erythropus at a staging ground. Fauna Norv. Ser. C., Cinclus 19: 69-76.
Keywords: identification, monitoring, methods
Abstract:
A survey of the Lesser White-fronted Goose Anser erythropus was carried out at a pre-nesting staging ground in Finnmark county, Northern Norway. A method for individual identification by differences in the markings of the belly patches of each individual was tested through seven field seasons. The belly patches of each individual were accurately drawn, and comparing these, no individuals turned out to have a similar pattern of patches. The method was found to be of significance in the monitoring of the Lesser White-fronted Goose population at the staging ground. By this method we were able to calculate the total number of geese staging in the area, and it revealed an overall turnover of individuals throughout the staging season. Individual identification is invaluable for monitoring the small and threatened population of Lesser White-fronted Goose in Fennoscandia. The results of this monitoring work during a five year period are presented in this paper. It shows that the population numbers vary some-what from year to year, but that the population trend has been relatively stable in this period.
Literature type: Report
Language:
English
Full reference: Rose, P.M. & Scott, D.A. 1994. Waterfowl population estimates. , International Waterfowl and Wetlands Research Bureau (IWRB Spec. Publ. 29), Slimbridge, U.K.
Keywords: status
Literature type: Proceedings
Language:
English
Full reference: Morozov, V.V. 1994. Status, distribution and trends of the Lesser White-fronted Goose (Anser erythropus) population in Russia. , Proc. Anatidae 2000 conf. Strasbourg, France.
Keywords: review
Literature type: Report
Language:
Norwegian
(In Norwegian)
Full reference: Øien, I.J. & Aarvak, T. 1993. Status for dverggås Anser erythropus i Fennoskandia. En oversikt over Dverggåsprosjektets virksomhet 1987-1992. [Status of Lesser White-fronted Goose Anser erythropus in Fennoscandia. An overview of project activities 1987-1992.] , Rapport nr. 52 fra Dverggåsprosjektet. Norsk Ornitologisk Forening, Klæbu. 47s
Keywords: breeding, population size, status, Norway, Sweden, Finland, monitoring, occurrence, Finnmark
Literature type: Proceedings
Language:
English
Full reference: Krivenko, V.G. 1981. Status of the wetlands and the waterfowl population in the Pre-Caucasus. , Proc. Symp. on mapping of waterfowl distribution, migration and habitats. Alushta, Ukraina. Pp. 248-254.
Keywords: status
Number of results: 57