Literature type: Scientific
Journal: Nature Conservation Research
Volume: 4
Language:
English
Full reference: Rozenfeld, S.B., Kirtaev, G.V., Rogova,N.V. & Soloviev, M.Y. 2019. Results of an aerial survey of the western population of Anser erythropus (Anserini) in autumn migration in Russia 2017. Nature Conservation Research 4. https://www.dx.doi.org/10.24189/ncr.2019.003
Keywords: aerial counts, Lesser White-fronted Goose, monitoring, Nenetsky Autonomous Okrug, Yamalo- Nenetsky Autonomous Okrug
Abstract:
The global population of Anser erythropus has rapidly declined since the middle of the 20th century. The decline in numbers has been accompanied by the fragmentation of the breeding range and is considered as «continuing affecting all populations, giving rise to fears that the species may go extinct». Overhunting, poaching and habitat loss are considered to be the main threats. The official estimate of the dimension of the decline is in the range of 30% to 49% between 1998 and 2008. Monitoring and the prospection of new areas are needed for the future conservation of this species. The eastern part of the Nenetsky Autonomous Okrug, the Baydaratskaya Bay and the Lower Ob (Dvuobye) are important territories for the Western main population of Anser erythropus on a flyway scale. Moving along the coast to the east, Anser erythropus can stay for a long time on the Barents Sea Coast, from where they fly over the Baydaratskaya Bay to the Dvuobye. We made aerial surveys and identified key sites and the main threats for Anser erythropus on this part of the flyway. According to our data, the numbers of the Western main population of Anser erythropus amount to 48 580 ± 2820 individuals after the breeding season, i.e. higher than the previous estimates made in autumn in Northern Kazakhstan. The key sites of Anser erythropus in this part of the flyway were identified.
Literature type: Scientific
Journal: Wildfowl
Volume: 68 , Pages: 44-69.
Language:
English
Full reference: Cuthbert, R.J., Aarvak, T., Boros, E., Eskelin, T., Fedorenko, V., Karvonen, R., Kovalenko, A., Lehikoinen, S., Petkov, N., Szilágy, A., Tar, J., Timonen, S., Timoshenko, A., Zhadan, K. & Zuban, I. 2018. Estimating the autumn staging abundance of migratory goose species in northern Kazakhstan. Wildfowl 68: 44-69.
Keywords: Anser erythropus, Branta ruficollis, flyway population estimates, sampling methodology.
Abstract:
Northern Kazakhstan and adjoining areas of Russia have vitally important autumn staging sites for arctic breeding geese, especially for the globally threatened Lesser White-fronted Goose Anser erythropus (LWfG) and Red-breasted Goose Branta ruficollis (RbG). Part of the Fennoscandian and the entire Western Main subpopulations of LWfG and the global population of RbGs are believed to stage there, which facilitates obtaining up-to-date population estimates for these species. A total of 80 lakes were surveyed across four survey areas in autumn 2016, recording more than 1.2 million geese in the region. Greater White-fronted Geese Anser albifrons (GWfG) were the most abundant with an estimated c. 890,000 birds, with counts of c. 250,000 Greylag Geese Anser anser, c. 53,000 Ruddy Shelduck Tadorna ferruginea, c. 39,100 RbG and c. 32,000 LWfG also recorded during the surveys. Based on a priori lake classification for both LWfG and RbG, to stratify survey lakes in order to generate total population estimates, survey teams visited a sample of different lake types. After removing lakes smaller than the observed minimum lake size used by each species, the total number of potential lakes available within the core staging areas of each species (335 lakes of > 320 ha for LWfG; 361 lakes of > 100 ha for RbG) was calculated. Bootstrapping procedures, with replacement, were then used to estimate the total numbers likely to be present in the region. These calculations produced total estimates of 34,250 birds (95% confidence intervals = 28,500–40,100 birds) for the Western Main population of LWfG (well in excess of current population estimates of 8,000–13,000 individuals) and an estimated population of 50,100 RbG (95% CI = 28,100–72,600 birds), broadly similar to recent population estimates of 55,000–57,000. We recommend that future surveys continue to monitor as large a region and as many lakes as possible in order to capture inter-annual variation in the distribution of birds and to provide more reliable assessments of population size and trends of these migratory species.
Literature type: General
Journal: Goose Bulletin
Volume: 21 , Pages: 12-31.
Language:
English
Full reference: Rozenfeld, S., Kirtaev, G., Soloviev, M., Rogova, N. & Ivanov, M. 2016. The results of autumn counts of Lesser White-fronted Goose and other geese species in the Ob valley and White-sea-Baltic flyway in September. Goose Bulletin: 21, 12-31.
Keywords: Russia, numbers, survey, ultra-light aircraft, density. Distribution, autumn, Ob-valley, Yamalo-Nenetski Autonomous District, Khanty-Mansiiski Autonomous District, Nenets Autonomous District
Literature type: Report
Language:
English
Full reference: Rozenfeld, S. & Strelnikov, E. 2011. Survey of Lesser White-fronted Goose Anser erythropus in lower Ob River, Russia in autumn 2010. , NOF-report 2011-3. 25 pp.
Literature type: Report
Language:
English
Full reference: Rozenfeld, S. 2011. Regulation of Spring and Autumn Hunting on Waterbirds in the Kumo-Manych Depression, Russian Federation, March 2010-February 2011. , AEWA Lesser White fronted Goose International Working Group Report Series No. 2. Bonn, Germany.
Keywords: hunting, protection, conservation
Literature type: Rep.article
Language:
English
Full reference: Tovanen, P. 2009. Annotated checklist of bird observations during the Lesser White-fronted Goose expeditions to the Mesna river mouth, Kanin Peninsula, Russia, in the autumns of 1996 and 2008. , In: Tolvanen, P., Øien, I.J. & Ruokolainen, K. (eds.). Conservation of Lesser White-fronted Goose on the European migration route. Final report of the EU LIFE-Nature project 2005–2009. WWF Finland Report 27 & NOF Rapportserie Report No 1-2009: pp. 90-93.
Keywords: monitoring, EU-Life, annual report, Fennoscandian
Literature type: General
Journal: Bulletin of the goose, swan and duck study group of northern Eurasia (Casarca)
Volume: 12 , Pages: 114-137.
Language:
Russian
(In Russian with English summary)
Full reference: Rozenfeld, S., Timoshenko, A.Yu. & Salemgareev, A.R. 2009. [Autumn migration of geese in Kostanay oblast, Kazakhstan, in 2008.], Bulletin of the goose, swan and duck study group of northern Eurasia (Casarca): 12, 114-137.
Keywords: autumn survey
Literature type: Scientific
Journal: Ornithological Science
Volume: 8 , Pages: 131-138.
DOI: 10.2326/osj.8.131
Language:
English
Full reference: Ikawa, M.-J. & Ikawa H. 2009. Lesser White-fronted Goose Anser erythropus at Sarobetsu in northern Hokkaido, Japan: a preliminary report on numbers in autumn. Ornithological Science 8: 131-138. https://www.dx.doi.org/10.2326/osj.8.131
Abstract:
Lesser White-fronted Goose Anser erythropus is recognized as a globally threatened species. Very small numbers stage and winter in Japan, mostly individually, as families or sometimes in small flocks. Since beginning to observe this species in 2001 at Sarobetsu, northern Hokkaido, Japan, we have noted increasing numbers. The increase, from a few individuals (2001–2004) to flocks (2005–2007), is of interest, given the threatened status of this species. Lesser White-fronted Goose now regularly migrates through Sarobetsu, giving us opportunities to observe this relatively rare winter visitor to Japan. In order to help clarify the status of this threatened species in Japan, we describe and discuss the change in numbers, the proportion of juveniles in flocks, family size and length of stay.
Literature type: Rep.article
Language:
English
Full reference: Luukkonen, A. & Markkola, J. 2004. The autumn migration survey of Lesser White-fronted Goose in Bothnian Bay area, Finland, in 2002. , In: Aarvak, T. & Timonen, S. (eds.). Fennoscandian Lesser White-fronted Goose conservation project. Report 2001-2003. WWF Finland Report No 20 & Norwegian Ornithological Society, NOF Rapportserie Report No 1-2004: p. 29.
Keywords: Annual report, monitoring
Literature type: Rep.article
Language:
English
Full reference: Kaartinen, R. & Pynnönen, J. 2004. Monitoring the autumn migration of Lesser White-fronted Goose in Varangerfjord area, Norway, in 2001–2003. , In: Aarvak, T. & Timonen, S. (eds.). Fennoscandian Lesser White-fronted Goose conservation project. Report 2001-2003. WWF Finland Report No 20 & Norwegian Ornithological Society, NOF Rapportserie Report No 1-2004: pp. 27-28.
Keywords: Annual report, monitoring
Number of results: 23