Results 21 to 30 of about 241 (123)

The ongoing lateral expansion of peatlands in Finland

Global Change Biology, Volume 29, Issue 24, Page 7173-7191, December 2023., 2023
Margins of the peatlands in Finland have continued to expand to the present day. This expansion has accelerated since 1500 Before Present. Abstract Peatlands are the most dense terrestrial carbon stock and since the last glacial epoch northern peatlands have accumulated between 400 and 1000 Gt of carbon.
Teemu Juselius‐Rajamäki, Minna Väliranta, Atte Korhola   +2 more
wiley   +1 more source

Consistent centennial‐scale change in European sub‐Arctic peatland vegetation toward Sphagnum dominance—Implications for carbon sink capacity

Global Change Biology, Volume 29, Issue 6, Page 1530-1544, March 2023., 2023
We studied how European sub‐Arctic peatland (including permafrost and non‐permafrost peatlands) intermediate and dry microhabitats have changed in response to changes in climate during the past two millennia. We payed special attention to the recent past.
Sanna R. Piilo, Minna M. Väliranta, Matt J. Amesbury, Marco A. Aquino‐López, Dan J. Charman, Angela Gallego‐Sala, Michelle Garneau, Natalia Koroleva, Mai Kärppä, Anna M. Laine, A. Britta K. Sannel, Eeva‐Stiina Tuittila, Hui Zhang   +12 more
wiley   +1 more source

Military supply, everyday demand, and reindeer: Zooarchaeology of Nazi German Second World War military presence in Finnish Lapland, Northernmost Europe

International Journal of Osteoarchaeology, Volume 32, Issue 1, Page 3-17, January/February 2022., 2022
Abstract During the Second World War, in 1941–1944, Nazi German troops held the frontal responsibility of the Arctic front in Finnish Lapland. In this paper, we present the first zooarchaeological study of the wartime faunal remains from German military camps in Lapland.
Oula Seitsonen, Lee G. Broderick, Iain Banks, Mari Olafson Lundemo, Sanna Seitsonen, Vesa‐Pekka Herva   +5 more
wiley   +1 more source

Mortality and survival of semi-domesticated reindeer (Rangifer tarandus tarandus L.) calves in northern Finland

Rangifer, 2011
During the period 1999 to 2004 the reindeer calf survival and mortality were studied in two reindeer-herding cooperatives and in five herding-groups in northern Finland, where in total 1725 calves were fitted with mortality indicating radio-transmitters ...
Mauri Nieminen, Harri Norberg, Veikko Maijala   +2 more
doaj   +1 more source

Productivity factors of the Finnish semi-domesticated reindeer (Rangifer t.tarandus) stock during the 1990s

Rangifer, 2002
Intensive reindeer grazing and the increase of other land use forms have caused a decline in the amount of arboreal (Alectoria, Bryoria spp.) and reindeer (Cladina spp.) lichens in the Finnish reindeer management area during the last few decades ...
Jouko Kumpula, Alfred Colpaert, Mauri Nieminen   +2 more
doaj   +1 more source

Can a snow structure model estimate snow characteristics relevant to reindeer husbandry?

Rangifer, 2014
Snow affects foraging conditions of reindeer e.g. by increasing the energy expenditures for moving and digging work or, in contrast, by making access of arboreal lichen easier.
Sirpa Rasmus, Jouko Kumpula, Jukka Siitari   +2 more
doaj   +1 more source

Chironomid count data for surface sediment samples from 33 lakes from the Kaamanen area (Finland)

, 2023
This dataset provides counts of chironomid taxa identified in a set of surface sediment samples taken in the region around the town of Kaamanen (Finland). A total of 33 lakes were sampled during field work in August 2006.
Engels, Stefan, Bohncke, Sjoerd J P, Nyman, Marjut, Heiri, Oliver   +3 more
core   +1 more source

The impact of large carnivores on the mortality of semi-domesticated reindeer (Rangifer tarandus tarandus L.) calves in Kainuu, southeastern reindeer-herding region of Finland

Rangifer, 2010
During 2006-2008 the survival of reindeer calves was studied in the reindeer-herding cooperative of Halla in Kainuu area where totally 546 calves were equipped with radio mortality collars mainly at the age of 1-3 days.
Mauri Nieminen
doaj   +1 more source

Meteorological responses of carbon dioxide and methane fluxes in the terrestrial and aquatic ecosystems of a subarctic landscape [Data set]

, 2022
The data set contains carbon dioxide (CO2) and methane (CH4) fluxes of boreal subarctic landscape and its ecosystems and ecotones, and ancillary meteorological and environmental data, measured at Kaamanen, northern Finland (69°8’ N, 27°16 ...
Tuovinen, Juha-Pekka,Finnish Meteorological Institute, Helsinki, Finland, Juutinen, Sari,Department of Environmental Sciences, University of Helsinki, Finland and University of Eastern Finland, Joensuu, Finland, Räsänen, Aleksi,Department of Environmental Sciences, University of Helsinki, Finland and Natural Resources Institute Finland (LUKE), Helsinki, Finland, Mikola, Juha,Department of Environmental Sciences, University of Helsinki, Finland and Natural Resources Institute Finland (LUKE), Helsinki, Finland, Aurela, Mika,Finnish Meteorological Institute, Helsinki, Finland, Virtanen, Tarmo,Department of Environmental Sciences, University of Helsinki, Finland, Vekuri, Henriikka,Finnish Meteorological Institute, Helsinki, Finland, Lohila, Annalea,Finnish Meteorological Institute, Helsinki, Finland, Heiskanen, Lauri,Finnish Meteorological Institute, Helsinki, Finland   +8 more
core   +2 more sources

Detecting northern peatland vegetation patterns at ultra‐high spatial resolution

Remote Sensing in Ecology and Conservation, Volume 6, Issue 4, Page 457-471, December 2020., 2020
Vegetation patterns in northern peatlands are spatially heterogenic from ultra‐high to coarse scale; there is also evident between‐site heterogeneity but absent comparisons between sites. We used random forest regressions for tracking plant functional type (PFT) coverage, ordination axes, and fuzzy plant community clusters in three different northern ...
Aleksi Räsänen, Mika Aurela, Sari Juutinen, Timo Kumpula, Annalea Lohila, Timo Penttilä, Tarmo Virtanen, Ned Horning, Jian Zhang   +8 more
wiley   +1 more source