Literature type: General
Volume: 2021 , Pages: 24-31
Language: Finnish in Finnish with English summaryDownload:
Full reference: Tolvanen, P., Karvonen R., Aarvak T, Øien I.J., Kaartinen, R., Lampila P. & Mikander, N. 2022. Kolmenumeroisiin yksilömääriin – kiljuhanhen suojelu 2015–2021. [Conservation of the Lesser White-fronted Goose Anser erythropus in 2015-2021.], Linnut-vuosikirja: 2021, 24-31
Keywords: Finland, trend, numbers, conservation, gsm-telemetry, migration routes
The critically endangered Fennoscandian Lesser White-fronted Goose Anser erythropus population is currently estimated to number roughly 100 individuals. Following a dramatic long-term decline to only some 10 breeding pairs in 2007–2008, the population has since slowly been increasing. The spring staging of the population on the Finnish Bothnian Bay coast has been monitored by the WWF Finland Lesser White-fronted Goose conservation project since 1985. In spring 2017, 124 individuals were counted, which was the highest number during the history of the monitoring. The Bothnian Bay coast was historically also an important autumn staging area and since 2020, the geese have again been staging in the area also during autumn migration. Breeding of the species has not been recorded in Finland since 1995, but the likelihood of locating breeding pairs again in Finnish Lapland is considered to be increasing, as the Norwegian breeding population is growing. As a part of the current international Lesser White-fronted Goose EU LIFE project (wwf.fi/lwfg), environmental DNA is being used to map potential breeding sites in Finland.
Literature type: Scientific
Volume: SpecIs 6 , Pages: 206–243.
Full reference: Ao, P., Wang, X., Solovyeva, D., Meng, F., Ikeuchi, T., Shimada, T., Park, J., Gao, D., Liu, G., Hu, B., Natsagdorj, T., Zheng, B., Vartanyan, S., Davaasuren, B., Zhang, J., Cao, L. & Fox, A. 2021. Rapid decline of the geographically restricted and globally threatened Eastern Palearctic Lesser White-fronted Goose Anser erythropus. Wildfowl SpecIs 6: 206–243.
Keywords: abundance, key sites, migration routes, population trends, telemetry tracking
The Lesser White-fronted Goose Anser erythropus, which breeds across northern Eurasia from Norway to Chukotka, is globally threatened and is currently classified as Vulnerable by the International Union for Conservation of Nature. The Eastern Palearctic population of the species was thought to breed in arctic Russia, from east of the Taimyr Peninsula to Chukotka, and to winter in East Asia, but its precise status, abundance, breeding and wintering ranges, and migration routes were largely unknown, reducing the effectiveness of conservation efforts. In this paper, we combined results from satellite tracking, field surveys, a literature review and expert knowledge, to present an updated overview of the winter distribution and abundance of Lesser White-fronted Geese in the Eastern Palearctic, highlighting their migration corridors, habitat use and the conservation status of the key sites used throughout the annual cycle. Improved count coverage puts the Eastern Palearctic Lesser White-fronted Geese population at c. 6,800 birds in 2020, which represents a rapid and worrying decline since the estimate of 16,000 in 2015, as it suggests at least a halving of numbers in just five years. East Dongting Lake (Hunan Province) in China is the most important wintering site for the species in East Asia, followed by Poyang Lake (Jiangxi Province) and Caizi Lake (Anhui Province), with one key wintering site in Miyagi County in Japan. Satellite tracking showed that eight individuals captured during summer on the Rauchua River, Chukotka, Russia wintered in the middle and lower reaches of the Yangtze River floodplain in China. Their migration speed was slower in spring than in autumn, mainly because of longer stopover duration at staging sites in spring. The tracked geese mainly used cultivated land on migration stopovers (52% in spring; 45% in autumn), tundra habitat in summer (63%), and wetlands (66%) in winter. Overall, 87% of the GPS fixes were in protected areas during the winter, far greater than in spring (37%), autumn (28%) and summer (7%). We urge more tracking of birds of differing wintering and breeding provenance to provide a fuller understanding of the migration routes, staging sites and breeding areas used by the geese, including for the birds wintering in Japan. The most urgent requirement is to enhance effective conservation and long-term monitoring of Lesser White-fronted Geese across sites within China, and particularly to improve our understanding of the management actions needed to maintain the species. Collaboration between East Asian countries also is essential, to coordinate monitoring and to formulate effective protection measures for safeguarding this population in the future.
Literature type: Scientific
Journal: International Journal of Environmental Research and Public Health
Volume: 16 , Pages: 1147.
Full reference: Jialin, L., Yifei, J., Aojie, Z., Qing, Z., Inlu, S., Yan, Z., Hong Z., Cai, L., Guangchun, L. & Li W. 2019. Bird satellite tracking revealed critical protection gaps in East Asian–Australasian flyway. International Journal of Environmental Research and Public Health 16: 1147. https://www.dx.doi.org/10.3390/ijerph16071147
Keywords: migration route, stopover, utilization distribution, Croplands, Northeast China Plains, Bohai Bay
Most migratory birds depend on stopover sites, which are essential for refueling during migration and affect their population dynamics. In the East Asian–Australasian Flyway (EAAF), however, the stopover ecology of migratory waterfowl is severely under-studied. The knowledge gaps regarding the timing, intensity and duration of stopover site usages prevent the development of effective and full annual cycle conservation strategies for migratory waterfowl in EAAF. In this study, we obtained a total of 33,493 relocations and visualized 33 completed spring migratory paths of five geese species using satellite tracking devices. We delineated 2,192,823 ha as the key stopover sites along the migration routes and found that croplands were the largest land use type within the stopover sites, followed by wetlands and natural grasslands (62.94%, 17.86% and 15.48% respectively). We further identified the conservation gaps by overlapping the stopover sites with the World Database on Protected Areas (PA). The results showed that only 15.63% (or 342,757 ha) of the stopover sites are covered by the current PA network. Our findings fulfil some key knowledge gaps for the conservation of the migratory waterbirds along the EAAF, thus enabling an integrative conservation strategy for migratory water birds in the flyway.
Literature type: Report
Full reference: Tolvanen, P., Øien, I.J. & Ruokolainen, K. (eds.) 2009. 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.
Keywords: conservation, monitoring, EU-Life, annual report
Literature type: Rep.article
Full reference: Øien, I.J., Aarvak, T., Ekker, I.J. & Tolvanen, P. 2009. Mapping of migration routes of the Fennoscandian Lesser White-fronted Goose breeding population with profound implications for conservation priorities. , 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. 12-18.
Keywords: monitoring, EU-Life, annual report, Fennoscandian, satellite telemetry
Literature type: Rep.article
Full reference: Øien, I.J., Tolvanen, P., Aarvak, T., Litvin, K.E. & Markkola, J. 1999. Surveys and catching of Lesser White-fronted Geese at Taimyr Peninsula 1998 - preliminary results on autumn migration routes mapped by satellite telemetry. , In: Tolvanen, P., Øien, I.J. & Ruokolainen, K. (eds.). Fennoscandian Lesser White-fronted Goose conservation project. Annual report 1998. WWF Finland Report 10 & Norwegian Ornithological Society, NOF rapportserie Report No 1-1999.: pp. 37-41.
Keywords: conservation, monitoring, Fennoscandian annual, Russia, Taimyr
Literature type: Scientific
Journal: Gibier Faune Sauvage
Volume: 9 , Pages: 257-268.
Full reference: Nankinov, D. 1992. Lesser White-fronted Goose (Anser erythropus) migration routes, wintering sites and conservation in Western Eurasia. Gibier Faune Sauvage 9: 257-268.
Literature type: Proceedings
Full reference: Rakhilin, V. 1972. Migration routes and the character of the passage of swans and geese in the far east. , Pp.172 in: Kumari, E. (ed.). Geese in the USSR. Proceedings of a conference Estonia, May 1970. Tartu, Academy of sciences of the Estonian SSR.
Number of results: 8