Population trend and spatio-temporal distribution of Greater White-fronted(Anser albifrons)and Bean Geese(Anser fabalis)in KoreaOA
Geese have undergone significant changes in their distribution and population size due to human-induced impacts.To improve our understanding of the two main geese populations in East Asia—Greater White-fronted(Anser albifrons;GWFG)and Bean Geese(Anser fabalis sensu lato;BEAG),which includes the Tundra A.f.serrirostris(TDBG)and Taiga Bean Geese A.f.middendorffii(TGBG),this study estimated their long-and short-term trends and the migration strategies based on their distribution during the migratory and wintering seasons,using nationwide census data collected over 24 years in South Korea.The TRIM(TRends and Indices for Monitoring data)analysis supported a robust long-term population increase since 1999,recently stabilizing around 150,000 individuals in GWFG and 100,000 in TDBG,respectively.But TGBG stabilized at around 7000 with no significant change of population over time.The shorter-term trends within a season suggested that wintering populations of GWFG and TDBG in China might stop over in Korea in their autumn migration before their sea-crossing,evidenced by the large congregation near the Yellow Sea coast followed by a gradual decrease.In contrast to autumn,there was no similar peak in spring migration,suggesting the potential for elliptical migration of some populations around the Yellow Sea.Our findings indicate a growing East Asian population and imply one of the migration strategies of the Greater White-fronted and Tundra Bean Geese.By collaborating with recent tracking data,long-term monitoring efforts could offer more detailed insights into population trends and migration strategies,thereby contributing to the effective management and conservation of goose species in East Asia.
Eun-Jeong Kim;Wee-Heang Hur;Hwa-Jung Kim;Yu-Seong Choi;Dongwon Kim;Who-Seung Lee;Sejeong Han;Hyerin Joo;Chang-Yong Choi
Department of Agriculture,Forestry,and Bioresources,Seoul National University,Seoul,08826,Republic of KoreaResearch Institute of Agriculture and Life Science,Seoul National University,Seoul,08826,Republic of Korea National Migratory Birds Center,National Institute of Biological Resources,Incheon,22689,Republic of KoreaNational Migratory Birds Center,National Institute of Biological Resources,Incheon,22689,Republic of KoreaNational Migratory Birds Center,National Institute of Biological Resources,Incheon,22689,Republic of KoreaNational Migratory Birds Center,National Institute of Biological Resources,Incheon,22689,Republic of KoreaDivision for Natural Environment,Korea Environment Institute,Sejong,30147,Republic of KoreaDepartment of Agriculture,Forestry,and Bioresources,Seoul National University,Seoul,08826,Republic of KoreaDepartment of Agriculture,Forestry,and Bioresources,Seoul National University,Seoul,08826,Republic of KoreaDepartment of Agriculture,Forestry,and Bioresources,Seoul National University,Seoul,08826,Republic of Korea Research Institute of Agriculture and Life Science,Seoul National University,Seoul,08826,Republic of Korea
生物学
Bean Goose Anser fabalisEast AsiaGreater White-fronted Goose Anser albifronsLong-term monitoringSpatiotemporal distributionNon-breeding
《Avian Research》 2024 (4)
P.458-465,8
supported by“The analysis of biogeographical and phenological migration pattern of birds as vectors of avian influenza(0525–202300058)”of the Korea Environment Institute“Long-term change of waterbird population in climate change(NIBR202318101,NIBR202416101)”of the National Institute of Biological Resources in South Korea.
评论