Literature type: Scientific
Journal: Ornis Svecica
Volume: 18 , Pages: 68-81.
Language:
English
Full reference: Kampe-Persson, H. 2008. Historical occurrence of the Lesser White-fronted Goose Anser erythropus in the Atlantic flyway. Ornis Svecica 18: 68-81.
Keywords: reintroduction
Literature type: Action Plan
Language:
English
Full reference: Jones, T., Martin, K., Barov, B., Nagy, S. 2008. International Single Species Action Plan for the Conservation of the Western Palearctic Population of the Lesser White-fronted Goose Anser erythropus. , AEWA Technical Series No.36. Bonn, Germany.
Keywords: Action plan, status, Western Palearctic
Literature type: Scientific
Journal: Conservation Genetics
Volume: 8 , Pages: 197-207.
DOI: 10.1007/s10592-006-9162-5
Language:
English
Full reference: Ruokonen, M., Andersson, A.-C. & Tegelström, H. 2007. Using historical captive stocks in conservation. The case of the lesser white-fronted goose. Conservation Genetics 8: 197-207. https://www.dx.doi.org/10.1007/s10592-006-9162-5
Keywords: Hybrid, Captive, Supplementation, Reintroduction, Lesser white-fronted goose, Anser erythropus
Abstract:
Many captive stocks of economically or otherwise valuable species were established before the decline of the wild population. These stocks are potentially valuable sources of genetic variability, but their taxonomic identity and actual value is often uncertain. We studied the genetics of captive stocks of the threatened lesser white-fronted goose Anser erythropus maintained in Sweden and elsewhere in Europe. Analyses of mtDNA and nuclear microsatellite markers revealed that 36% of the individuals had a hybrid ancestry. Because the parental species are closely related it is unlikely that our analyses detected all hybrid individuals in the material. Because no ancestral polymorphism or introgression was observed in samples of wild populations, it is likely that the observed hybridisation has occurred in captivity. As a consequence of founder effect, drift and hybridisation, captive stocks were genetically differentiated from the wild populations of the lesser white-fronted goose. The high level of genetic diversity in the captive stocks is explained at least partially by hybridisation. The present captive stocks of the lesser white-fronted goose are considered unsuitable for further reintroduction, or supplementation: hybridisation has involved three species, the number of hybrids is high, and all the investigated captive stocks are similarly affected. The results highlight the potential shortcomings of using captive-bred individuals in supplementation and reintroduction projects, when the captive stocks have not been pedigreed and bred according to conservation principles.
Literature type: General
Journal: Natur i Østfold
Volume: 26 , Pages: 3-13.
Language:
Norwegian
(In Norwegian)
Full reference: Pettersen, M. & Aarvak, T. 2007. Forekomst av tundragås Anser albifrons og dverggås Anser\nerythropus i Østfold. [Occurrence of White-fronted Goose Anser albifrons and Lesser White-fronted Goose Anser erythropus in Østfold.], Natur i Østfold: 26, 3-13.
Keywords: occurrence
Abstract:
Tundragåsa er en sjeldent forekommende art i Østfold. Ved utgangen av 2004 var det registrert 37 funn av til sammen 59 individer. Av disse er kun to funn av fire individer av underarten flavirostris. Når det gjelder dverggås foreligger det per 2004 kun tre funn av fire individer. To eldre observasjoner diskuteres. Disse er ikke godt nok dokumentert til å bli med i den offisielle funnstatistikken for Østfold.
Literature type: Book Chpt
Language:
English
Full reference: Vasiliev, V.V., Gauzer, M.E., Rustamov, E.A. & Belousova, A.V. 2006. The Lesser White-fronted Goose Anser erythropus in the south-east Caspian region of Turkmenistan. , Waterbirds around the world. Eds. G.C. Boere, C.A. Galbraith & D.A. Stroud. The Stationery Office, Edinburgh, UK. pp. 629-632.
Keywords: Turkmenistan, Caspian Sea, winter count, mid-winter, survey
Abstract:
The south-east Caspian region of Turkmenistan is an important staging and wintering area for the globally threatened Lesser White-fronted Goose Anser erythropus. During the period 1975-2003, surveys carried out in late autumn and mid-winter recorded Lesser White-fronted Geese at a total of 14 sites. The numbers of geese fluctuated widely from a maximum of 1 850 individuals in November 1999 to none in several years. The most important sites were the Turkmenbashi, Balkan, Mihkailovskiy and Severo-Cheleken Bays in the central part of the Caspian coast of Turkmenistan, and the delta of the Atrek River in the southern part. Changes in the distribution and numbers of geese have occurred as a result of habitat degradation or alteration and other anthropogenic pressures, especially hunting. Various measures are proposed for the protection and management of the Lesser White-fronted Goose in Turkmenistan, and it is suggested that these measures could be used in the development of an international action plan for the conservation of the species in the Caspian region as a whole.
Literature type: General
Language:
English
Full reference: Morozov, V.V. 2006. The Lesser White-fronted Goose Anser erythropus at the verge of the millennium. Waterbirds around the world. Eds. G.C. Boere, C.A. Galbraith & D.A. Stroud. The Stationery Office, Edinburgh, UK. pp. 380-381.
Keywords: population status, world population, Russia
Literature type: Book Chpt
Language:
English
Full reference: Andersson, Å. & Larsson, T. 2006. Reintroduction of Lesser White-fronted Goose Anser erythropus in Swedish Lapland. , In: Boere, G.C., Galbraith, C.A. & Stroud, D.A. Waterbirds around the world. The stationary office, Edinburgh, UK. Pp. 635-636.
Keywords: reintroduction
Literature type: Report
Language:
English
Full reference: Vangeluwe, D. 2005. The Drana marshes (Evros Delta, Greece), a question of survival for the European population of Anser erythropus. With data on the occurrence and ecology of the Red-breasted Goose Branta ruficollis. , Report of Life-Nature program “Restoration and Conservation Management of the Drana Lagoon in the Evros Delta (Greece)”, Institute royal des sciences naturelles de Belgique.
Keywords: occurence
Literature type: Report
Language:
Dutch
Full reference: Koffijberg, K., Cottaar, F. & van der Jeugd, H. 2005. Pleisterplaatsen van Dwergganzen Anser erythropus in Nederland. , SOVON-informatierapport 2005/06. SOVON Vogelonderzoek Nederland, Beek-Ubbergen. (In Dutch with English summary and captions).
Keywords: occurence
Literature type: General
Journal: Fåglar i Västerbotten
Volume: 30 , Pages: 2-8.
Language:
Swedish
(In Swedish)
Full reference: Hansson, P. 2005. Kan fjällgåsen, Anser erythropus, någonsin komma tilbaks till Västerbotten? [Can the Lesser White-fronted Goose ever return til Västerbotten?], Fåglar i Västerbotten: 30, 2-8.
Keywords: reintroduction, Sverige, Sweden
Number of results: 157