Literature type: Rep.article
Language:
English
Full reference: Cao, L., Fox, A.D., Morozov, V.V., Syroechkovskiy jr., E.E.. & Solovieva, D. 2018. , Pp. 38-39 in Fox, A.D. & Leafloor, J.O. (eds.). A Global Audit of the Status and Trends of Arctic and Northern Hemisphere Goose Populations (Component 2: Population accounts). CAFF: Akureyri, Iceland. ISBN 978-9935-431-74-5.
Keywords: population status, China, Easter Palearctic, East Russia, Japan
Literature type: Scientific
Journal: Bird Conservation International
Volume: 26 , Pages: 397-417.
DOI: 10.1017/S0959270915000386
Language:
English
Full reference: Jia, Q., Koyama, K., Choi, C.-Y., Kim, H.-J., Cao, L., Liu, G. & Fox, A. 2016. Population estimates and geographical distributions of swans and geese in East Asia based on counts during the non-breeding season. Bird Conservation International 26: 397-417. https://www.dx.doi.org/10.1017/S0959270915000386
Keywords: Population size, survey, South Korea, Japan, China,
Abstract:
For the first time, we estimated the population sizes of two swan species and four goose species from observations during the non-breeding period in East Asia. Based on combined counts from South Korea, Japan and China, we estimated the total abundance of these species as follows: 42,000–47,000 Whooper Swans Cygnus cygnus; 99,000–141,000 Tundra Swans C. columbianus bewickii; 56,000–98,000 Swan Geese Anser cygnoides; 157,000–194,000 Bean Geese A. fabalis; 231,000–283,000 Greater White-fronted Geese A. albifrons; and 14,000–19,000 Lesser White-fronted Geese A. erythropus. While the count data from Korea and Japan provide a good reflection of numbers present, there remain gaps in the coverage in China, which particularly affect the precision of the estimates for Bean, Greater and Lesser White-fronted Geese as well as Tundra Swans. Lack of subspecies distinction of Bean Geese in China until recently also limits our ability to determine the true status of A. f. middendorffii there, but all indications suggest this population numbers around 18,000 individuals and is in need of urgent attention. The small, highly concentrated and declining numbers of Lesser White-fronted Geese give concern for this species, as do the major declines in Greater White-fronted Geese in China (in contrast to numbers in Japan and Korea, considered to be a separate flyway). In the absence of any demographic data, it is impossible to interpret the causes of these changes in abundance. Improved monitoring, including demographic and tracking studies are required to provide the necessary information to retain populations in favourable conservation status.
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: General
Journal: Bulletin of the Sendai Science Museum
Volume: no.7 1997 , Pages: 96-102.
Language:
English
Full reference: Iwabuchi, S. 1997. Distribution and status of Lesser White-frronted Goose (Anser erythropus). Bulletin of the Sendai Science Museum: no.7 1997, 96-102.
Keywords: Japan, world, West Palearctic, East Palearctic, distrribution, negative factors
Literature type: General
Journal: Bulletin of the Sendai Science Museum
Language:
Japanese
(In Japanese)
Full reference: Iwabuchi, S. 1997. [Distribution and status of the Lesser White-fronted Goose (Anser erythropus).], Bulletin of the Sendai Science Museum:
Literature type: General
Journal: Bulletin of the Ornithological Society of Japan
Volume: 38 , Pages: 282-284.
Language:
Japanese
(In Japanese)
Full reference: Kuroda, N. 1934. [Collection record of A. erythropus from Japan.], Bulletin of the Ornithological Society of Japan: 38, 282-284.
Keywords: Japan
Literature type: General
Journal: Bulletin of the Ornithological Society of Japan
Volume: 6 , Pages: 35-41.
Language:
Japanese
(In Japanese)
Full reference: Kuroda, N. 1918. [Habitat region of geese and ducks in Japan.], Bulletin of the Ornithological Society of Japan: 6, 35-41.
Keywords: Japan
Literature type: Scientific
Journal: Ibis
Volume: 24 , Pages: 368-386.
DOI: 10.1111/j.1474-919X.1884.tb01152.x
Language:
English
Full reference: Seebohm, H. 1882. Further contributions to the ornithology of Japan. Ibis 24: 368-386. https://www.dx.doi.org/10.1111/j.1474-919X.1884.tb01152.x
Number of results: 8