Portal to the Lesser White-fronted Goose

Literature type: Report

Language: Swedish In Swedish with English summary.

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Full reference: Willebrand, T. & Willebrand, S. 2018. Utvärdering av Åtgärdsprogrammet för fjällgås 2011–2017. [Evaluation of the 2011–2017 Action Program for the Lesser White-fronted Goose (Anser erythropus).] , Naturvårdsverket Rapport 6836. 26. pp

Keywords: captive breeding, reintroduction, red fox culling, monitoring, Sweden

Abstract:

This report is an external evaluation of the current Swedish Action Plan for the Lesser White-Fronted Goose (2011-2015, extended until 2017) and parts of the Lesser White-Fronted Goose Project, commissioned by the Swedish Environmental Protection Agency (SEPA). The evaluation has come to the following conclusions: 1. The Lesser White-fronted Goose in Sweden is critically endangered and immigration from other populations, like the small Norwegian population, is not very probable. To secure the species from becoming extinct in in Sweden, larger resources are required than what is currently available in the system for action plans at SEPA. 2. An increased focus on breeding areas is recommended to obtain more data on predator activity, human disturbance and recruitment of released birds from the breeding program. 3. An increased control of the red fox (Vulpes vulpes) population in the breeding area during late winter, and an evaluation of the optimal ratio of released to wild birds in the population, are two highly prioritized actions. 4. Establishing a systematic monitoring program including quality control will make estimates on population development more reliable. 5. Potential breeding areas, with special emphasize on the extent of grazing fields, should be surveyed in the proximity of the present breeding area to estimate the possibility of natural expansion into new areas. 6. The captive breeding and release is well organized and of high quality. (However, as stressed above, an estimate of the optimal numbers of released birds into the wild should be evaluated.)

Literature type: Report

Language: English

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Full reference: Vougioukalou, M. (compiler) 2018. Monitoring the Lesser White-fronted Goose in Greece 2017 - 2018. , Hellenic Ornithological Society / BirdLife Greece. 33 pp.

Keywords: monitoring, Greece, numbers

Literature type: General

Journal: Vår Fuglefauna

Volume: 41 , Pages: 132-137.

Language: Norwegian (In Norwegian)

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Full reference: Øien, I.J. & Aarvak, T. 2018. Fortsatt mange utfordringer for dverggjessene [Still many challenges for Lesser White-fronted Geese], Vår Fuglefauna: 41, 132-137.

Keywords: monitoring, threats, migration, Norway, Fennoscandia

Literature type: Scientific

Journal: Scientific reports

Volume: 8 , Pages: 2014

DOI: 10.1038/s41598-017-18594-2

Language: English

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Full reference: Liang, J., Gao, X., Zeng, G., Hua, S., Zhong, M., Li, X., & Li, X. 2018. Coupling Modern Portfolio Theory and Marxan enhances the efficiency of Lesser White-fronted Goose's (Anser erythropus) habitat conservation. Scientific reports 8: 2014 https://www.dx.doi.org/10.1038/s41598-017-18594-2

Keywords: Climate change, Biodiversity, ecological modelling, wetlands ecology, China, Yangtze River

Abstract:

Climate change and human activities cause uncertain changes to species biodiversity by altering their habitat. The uncertainty of climate change requires planners to balance the benefit and cost of making conservation plan. Here optimal protection approach for Lesser White-fronted Goose (LWfG) by coupling Modern Portfolio Theory (MPT) and Marxan selection were proposed. MPT was used to provide suggested weights of investment for protected area (PA) and reduce the influence of climatic uncertainty, while Marxan was utilized to choose a series of specific locations for PA. We argued that through combining these two commonly used techniques with the conservation plan, including assets allocation and PA chosing, the efficiency of rare bird's protection would be enhanced. In MPT analyses, the uncertainty of conservation-outcome can be reduced while conservation effort was allocated in Hunan, Jiangxi and Yangtze River delta. In Marxan model, the optimal location for habitat restorations based on existing nature reserve was identified. Clear priorities for the location and allocation of assets could be provided based on this research, and it could help decision makers to build conservation strategy for LWfG.

Literature type: Report

Language: English

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Full reference: Jones, I.L., Whytock, R.C. & Bunnefeld, N. 2018. Assessing motivations for the illegal killing of Lesser White-fronted Geese at key sites in Kazakhstan. , AEWA Lesser White-fronted Goose International Working Group Report Series No. 6, Bonn, Germany.

Keywords: conservation, hunting, Kazakhstan, illegal hunting, Questionnaires, Unmatched Count Technique

Literature type: Scientific

Journal: Scientific reports

Volume: 8 , Pages: 214.

DOI: 10.1038/s41598-017-18594-2

Language: English

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Full reference: Jie, L., Xiang, G., Guangming, Z., Shanshan, H., Minzhou, Z., Xiaodong, L., & Xin, L. 2018. Coupling modern portfolio theory and marxan enhances the efficiency of Lesser White-fronted Goose’s (Anser erythropus) habitat conservation. Scientific reports 8: 214. https://www.dx.doi.org/10.1038/s41598-017-18594-2

Keywords: ecological modelling, climate change, conservation, habitat restoration, Jiangxi, Yangtze, China

Abstract:

Climate change and human activities cause uncertain changes to species biodiversity by altering their habitat. The uncertainty of climate change requires planners to balance the benefit and cost of making conservation plan. Here optimal protection approach for Lesser White-fronted Goose (LWfG) by coupling Modern Portfolio Theory (MPT) and Marxan selection were proposed. MPT was used to provide suggested weights of investment for protected area (PA) and reduce the influence of climatic uncertainty, while Marxan was utilized to choose a series of specific locations for PA. We argued that through combining these two commonly used techniques with the conservation plan, including assets allocation and PA chosing, the efficiency of rare bird’s protection would be enhanced. In MPT analyses, the uncertainty of conservation-outcome can be reduced while conservation effort was allocated in Hunan, Jiangxi and Yangtze River delta. In Marxan model, the optimal location for habitat restorations based on existing nature reserve was identified. Clear priorities for the location and allocation of assets could be provided based on this research, and it could help decision makers to build conservation strategy for LWfG.

Literature type: Action Plan

Language: Bulgarian

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Full reference: Iankov, P. & Dobrev, D. 2018. [Action plan for conservation of the Lesser White-fronted Goose (Anser erythropus) in Bulgaria 2018-2027.] , MOCV, Sofia. 76 pp.

Keywords: Action plan, Bulgaria

Literature type: Scientific

Journal: Wildfowl

Volume: 68 , Pages: 44-69.

Language: English

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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: Rep.article

Language: English

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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: Rep.article

Language: English

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Full reference: Aarvak, T., Øien, I.J. & Morozov, V.V. 2018. Western main Lesser White-fronted Goose Anser erythropus. , Pp. 43-44 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, Wester main, Russia