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Reevaluation on accumulation and depletion of dioxin-like compounds in eggs of laying hens: Quantification on dietary risk from feed to egg
Wang, Chu; Dong, Shujun; Wang, Pu; Hao, Yanfen; Wang, Ruiguo; Zhang, Su; Wang, Yaxin; Fan, Mengdie; Zhang, Qinghua; Jiang, Guibin
2021-10-20
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
ISSN2053-7166
Volume12Issue:1Pages:-
AbstractBackground The Swan Goose (Anser cygnoides) breeds across Mongolia and adjacent China and Russia and winters exclusively in China. It is globally threatened, showing long-term major range contractions and declining abundance, linked to habitat loss and degradation. We remain ignorant about the biogeographical subpopulation structure of the species and potential differences in their migration timing, stopovers and schedules, information that could be vital to effective conservation of different elements of the species population, which we address here with results from a telemetry study. Methods In 2017-2018, we attached GPS/GSM telemetry devices to 238 Swan Geese on moulting sites in three discrete parts of their summering area (Dauria International Protected Area, Central Mongolia and Western Mongolia), generating 104 complete spring and autumn migration episodes to compare migration speed and nature between birds of different summer provenances. Results Birds from all three breeding areas used almost completely separate migration routes to winter sympatrically in the Yangtze River floodplain. Although many features of the spring and autumn migrations of the three groups were similar, despite the significantly longer migration routes taken by Western Mongolian tagged birds, birds from Dauria Region arrived significantly later in winter due to prolonged staging in coastal areas and took longer to reach their breeding areas in spring. Among birds of all breeding provenances, spring migration was approximately twice as fast as autumn migration. Areas used by staging Swan Geese (mainly wetlands) in autumn and spring almost never fell within national level protected areas, suggesting major site safeguard is necessary to protect these critical areas. Conclusions This study showed the discreteness of migration routes taken by birds of different summer provenances and differences in their migratory patterns, highlighting key staging areas (Yalu River Estuary in China/North Korea for Dauria Region breeding birds, Daihai Lake for Central Mongolian and Ordos Basin for Western Mongolian birds). Based on this new knowledge of the biogeographical subpopulation structure of the Swan Goose, we need to combine data on subpopulation size, their distribution throughout the annual life cycle and conservation status, to develop more effective conservation strategies and measures to reverse population decline throughout the range.
Department环境化学与生态毒理学国家重点实验室
KeywordAnser cygnoides GPS GSM telemetry Migration parameters Segmentation Stopover duration Swan Geese
Document Type期刊论文
Identifierhttps://ir.rcees.ac.cn/handle/311016/46821
Collection环境化学与生态毒理学国家重点实验室
Affiliation1.Chinese Acad Sci, State Key Lab Environm Chem & Ecotoxicot, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China
2.Chinese Acad Agr Sci, Inst Qual Stand & Testing Technol Agroprod, Beijing 100081, Peoples R China
3.Jianghan Univ, Inst Environm & Hlth, Hubei Key Lab Environm & Hlth Effects Persistent, Wuhan 430056, Peoples R China
4.Univ Chinese Acad Sci, Sino Danish Coll, Beijing 100049, Peoples R China
5.Univ Chinese Acad Sci, Hangzhou Inst Adv Study, Sch Environm, Hangzhou 310000, Peoples R China
Recommended Citation
GB/T 7714
Wang, Chu,Dong, Shujun,Wang, Pu,et al. Reevaluation on accumulation and depletion of dioxin-like compounds in eggs of laying hens: Quantification on dietary risk from feed to egg[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,12(1):-.
APA Wang, Chu.,Dong, Shujun.,Wang, Pu.,Hao, Yanfen.,Wang, Ruiguo.,...&Jiang, Guibin.(2021).Reevaluation on accumulation and depletion of dioxin-like compounds in eggs of laying hens: Quantification on dietary risk from feed to egg.SCIENCE OF THE TOTAL ENVIRONMENT,12(1),-.
MLA Wang, Chu,et al."Reevaluation on accumulation and depletion of dioxin-like compounds in eggs of laying hens: Quantification on dietary risk from feed to egg".SCIENCE OF THE TOTAL ENVIRONMENT 12.1(2021):-.
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