Literature type: Scientific
Journal: Biochem. Genet.
Volume: 34 , Pages: 287-296.
DOI: 10.1007/PL00020578
Language:
English
External Link:
Full reference: Tegelström, H. & von Essen, L. 1996. DNA fingerprinting of captive breeding pairs of lesser white-fronted geese (Anser erythropus) with unknown pedigrees. Biochem. Genet. 34: 287-296. https://www.dx.doi.org/10.1007/PL00020578
Keywords: genetics, reintroduction
Abstract:
For a number of decades, the lesser white-fronted goose (Anser erythropus) has been almost-absent from the Fennoscandian fauna and has a current population size of only about 60 breeding pairs, with fewer than 10 pairs in Sweden. During the period 1981–1991 more than 200 young have been reintroduced in northern Sweden. However, the origin and possible relatedness of lesser white-fronted individuals were unknown when the breeding program started. We have used DNA fingerprinting to assess the similarity of 18 individuals, i.e., the entire captive population used for breeding in 1991 and about 60% of the captive population used in 1981–1991. Minisatellite probe 33.15 provided an index for an average similarity of 0.39 between the mates of the 12 breeding pairs used for producing offspring for reintroduction. This is a higher similarity than in natural populations of birds in general but lower than in populations that have passed through serious population bottlenecks. Individuals originating from different breeders are more dissimilar than those from the same breeder. However, the close relationships (similarity, 0.5–0.6) found in a group of five individuals from different breeders show that selecting individuals from different breeding groups is not sufficient to prevent mating between closely related individuals.
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: Scientific
Journal: Fauna Norv. Ser. C., Cinclus.
Volume: 13 , Pages: 87-88.
Language:
English
Full reference: Lorentsen, S-H. & Spjøtvoll, Ø. 1990. Notes on the food choice of breeding Lesser White-fronted Goose Anser erythropus. Fauna Norv. Ser. C., Cinclus. 13: 87-88.
Keywords: diett
Literature type: Report
Language:
Norwegian
(In Norwegian)
Full reference: Henriksen, G. 1989. Gjess i Finnmark - en statusrapport. [Geese in Finnmark - a status report.] , Fylkesmannen i Finnmark, miljøvernavdelingen. Rapport nr. 33.
Keywords: dverggås, occurrence, distribution, numbers, references, Finnmark, Norway, breeding, bean goose
Literature type: Scientific
Journal: Wildfowl
Volume: 34 , Pages: 144-152.
Language:
English
External Link:
Full reference: French, N.A. & Board, R.G. 1983. Water vapour conductance of wildfowl eggs and incubator humidity. Wildfowl 34: 144-152.
Keywords: Wildfowl Trust, Slimbridge, artificial breeding, zoo
Literature type: Proceedings
Language:
English
Full reference: Isakov, Y.A. 1971. The Caspian Sea as a wildfowl breeding, moulting and wintering area. , Pp. 67-80. In: Carp, E. (ed.). International conference on the conservation of wetlands and waterfowl. Ramsar, Iran, jan.30-feb.3. 303pp.
Keywords: status
Literature type: General
Journal: Dansk Ornithologisk Forenings Tidsskrift
Volume: 45 , Pages: 1-18.
Language:
Danish
(In Danish with English summary)
Full reference: Davidson, A. 1951. Ornithologiske iagttagelser i Nord-Finland og Finnmark i Norge sommeren 1950. [Ornithological observations in North Finland and Finnmark in Norway the summer 1950.], Dansk Ornithologisk Forenings Tidsskrift: 45, 1-18.
Keywords: breeding record, brood size,
Literature type: Book
Language:
Swedish
(In Swedish)
Full reference: Persson, C. 1943. Fåglar vid Ånnsjön. [Birds at Aansjön.] , J.A. Lindblads Förlag, Uppsala.
Keywords: breeding, nest, water level
Number of results: 47