Literature type: Thesis
Language:
English
External Link:
Full reference: Marolla, F. 2020. Understanding and forecasting population dynamics in changing arctic ecosystems. A holistic approach to study the effects of environmental changes on arctic populations of management concern. , Doctoral thesis, Department of Arctic and Marine Biology, The Arctic University of Norway.
Keywords: population dynamics, culling, mortality, production, Fennoscandia
Literature type: Scientific
Journal: Ornis Fennica
Volume: 97 , Pages: 1-18.
Language:
English
Full reference: Markkola, J.A. & Karvonen, R.T. 2020. Changing environmental conditions and structure of a breeding population of the threatened Lesser White-fronted Goose (Anser erythropus L.). Ornis Fennica 97: 1-18.
Keywords: breeding, broods, mortality, hunting, migration, lemmings, voles
Abstract:
Migratory birds breeding at high latitudes face challenges in relation to timing of breeding vs. annual weather, climate change, and predator abundance. Hunting pressure along migration routes and wintering quarters forms an additional challenge.We studied population structure and interaction with environmental factors in a small population of threatened Lesser White-fronted Geese Anser erythropus, living in sub-arctic zone in Lapland in 1989–1996. Thereafter the population disappeared. The population comprised 2–15 breeding pairs plus 0–12 non-breeders, which left in June to moult elsewhere. 30 broods were observed (0–8 annually) with an average number of 2.9 goslings. Of the 3 satellite tagged plus 7 ringed geese at least 3were shot and altogether 4 killed during the first year. Only 2 were seen alive next year or later. Laying started on average 4 June (21May – 13 June) and hatching took place 2 July (21 June–10 July) with an intra-seasonal clutch size decline. Variation in nesting initiation was not explained by local phenology, but instead by the date of staging peak in the last pre-breeding staging area 600 km south. Reproduction was affected negatively by cold spells and positively by the sum of daily effective temperatures by 5 July. Vole populations were low and a real cycle missing. No effect of reindeer abundance or human presence on reproduction could be found.
Literature type: Report
Language:
English
Full reference: Lee, R., Cranswick, P.A. Hilton, G.M. & Jarrett, N.S. 2010. Feasibility study for a re-introduction/supplementation programme for the Lesser White-fronted Goose Anser erythropus in Norway. , WWT Report to the Directorate for Nature Management, Norway. 130pp.
Keywords: reintroduction, translocation, population, mortality, feasibility, re-introduction, supplementation, Norway, Fennoscandia, life-history, captive breeding, zoo,
Literature type: Rep.article
Language:
English
Full reference: Lampila, P. 2001. Adult mortality as a key factor determining population growth in Lesser White-fronted Goose. , In: Tolvanen, P., Øien, I.J. & Ruokolainen, K. (eds.). Fennoscandian Lesser White-fronted Goose conservation project. Annual report 2000. WWF Finland Report 13 & Norwegian Ornithological Society, NOF Rapportserie Report No 1-2001: pp. 45-47.
Keywords: Annual report, monitoring, population modelling, sensitivity
Literature type: Thesis
Language:
Finnish
(In Finnish)
Full reference: Lampila, P. 2000. Kiljuhani (Anser erythropus): esiintyminen, kannan tila ja suojelu. , Thesis Pro Gradu, Biologian laitus, Oulun Yliopisto. 50pp.
Keywords: Fennoscandia, population modelling, mortality, production, matrix, development
Literature type: General
Journal: Vår Fuglefauna
Volume: 18 , Pages: 244-246.
Language:
Norwegian
(In Norwegian with English summary)
Full reference: Øien, I.J., Lorentsen, S-H., Aarvak, T. 1995. Skremmende tapsprosent for satelitt-merkede dverggjess. Den farlige veien mot vinterlandet. [Scary high loss of satellite transmitter tagged lesser white-fronted geese. The dangerous journey to the winter land.], Vår Fuglefauna: 18, 244-246.
Keywords: satellite telemetry, mortality, satellite tracking
Literature type: Scientific
Journal: Wildfowl
Volume: 34 , Pages: 153-162.
Language:
English
Full reference: Hillgarth, N., Kear, J. & Horky, K. 1983. Mortality of the northern geese in captivity. Wildfowl 34: 153-162.
Keywords: longevity, mortality, age, death, cause, peritonitis, pneumonia, cardiac, aspergillosis, lead, trauma, seasonal
Number of results: 7