A5009835491- Tree-ring climate responses
- Plant Water Relations and Carbon Dynamics
- Climate change and permafrost
- Ecology and Vegetation Dynamics Studies
- Fire effects on ecosystems
- Botany and Plant Ecology Studies
- Cryospheric studies and observations
- Forest ecology and management
- Geology and Paleoclimatology Research
- Species Distribution and Climate Change
- Lichen and fungal ecology
- Bryophyte Studies and Records
- Peatlands and Wetlands Ecology
- Remote Sensing and LiDAR Applications
- Forest Ecology and Biodiversity Studies
- Arctic and Russian Policy Studies
- Plant and animal studies
- Soil and Environmental Studies
- Food Industry and Aquatic Biology
- Climate variability and models
- Global Energy and Sustainability Research
- Remote Sensing in Agriculture
- Aquatic and Environmental Studies
- Animal Ecology and Behavior Studies
- Healthcare Systems and Public Health
Institute of Plant and Animal Ecology
2016-2025
Russian Academy of Sciences
2008-2016
Ural State Forestry Engineering University
2003-2004
University of Vienna
2003
Past Global Changes
2003
University of Bern
2003
University of Bremen
2003
In mountainous regions, climate warming is expected to shift species' ranges higher altitudes. Evidence for such shifts still mostly from revisitations of historical sites. We present recent (2001 2008) changes in vascular plant species richness observed a standardized monitoring network across Europe's major mountain ranges. Species have moved upslope on average. However, these had opposite effects the summit floras' boreal-temperate regions (+3.9 average) and Mediterranean (-1.4 species),...
Abstract The ongoing climatic changes potentially affect plant growth and the functioning of temperature‐limited high‐altitude high‐latitude ecosystems; rate magnitude these biotic are, however, uncertain. aim this study was to reconstruct stand structure forms Larix sibirica (Ledeb.) in undisturbed forest–tundra ecotones remote Polar Urals on a centennial time scale. Comparisons current ecotone with historic photographs from 1960s clearly document that forests have significantly expanded...
Abstract High‐altitude treelines are temperature‐limited vegetation boundaries, but little quantitative evidence exists about the impact of climate change on in untouched areas Russia. Here, we estimated how forest‐tundra ecotones have changed during last century along Ural mountains. In South, North, Sub‐Polar, and Polar Urals, compared 450 historical recent photographs determined ages 11 100 trees 16 altitudinal gradients. these four regions, boundaries open closed forests (crown covers...
Abstract Aim In the alpine life zone, plant diversity is strongly determined by local topography and microclimate. We assessed extent to which aspect its relatedness temperature affect species diversity, colonization disappearance of on summits a pan‐European scale. Location Mountain in Europe's zone. Methods Vascular their percentage cover were recorded permanent plots each cardinal direction 123 32 regions across Europe. For subset from 17 regions, resurvey data 6‐year soil series...
The area covered by boreal forests accounts for ∼16% of the global and 22% Northern Hemisphere landmass. Changes in productivity functioning this circumpolar biome not only have strong effects on species composition diversity at regional to larger scales, but also Earth's carbon cycle. Although temporal inconsistency response tree growth temperature has been reported from some locations higher northern latitudes, a systematic dendroecological network assessment is still missing most zone....
Abstract Climate warming is expected to positively alter upward and poleward treelines which are controlled by low temperature a short growing season. Despite the importance of as bioassay climate change, global field assessment posterior forecasting tree growth at annual scales lacking. Using annually resolved tree‐ring data located across Eurasia Americas, we quantified modeled relationship between radial treeline during 20th century. We then tested whether this temperature–growth...
Abstract Treelines advance due to climate warming. The impacts of this vegetation shift on plant–soil nutrient cycling are still uncertain, yet highly relevant as availability stimulates tree growth. Here, we investigated nitrogen (N) and phosphorus (P) in plant soil pools along two tundra–forest transects Kola Peninsula, Russia, with a documented elevation birch‐dominated treeline by 70 m during the last 50 years. Results show that although total N P stocks soil–plant system did not change...
1 The stress gradient hypothesis suggests a shift from predominant competition to facilitation along gradients of increasing environmental severity. This is proposed cause parallel changes prevailing spatial segregation aggregation among the species within community. 2 We used 904 1-m2 plots, each subdivided into 100 10 × cm, or 25 20 cm cells, respectively, 67 European mountain summits grouped 18 regional altitudinal transects, test this hypothesized correlation between fine-scale patterns...
Kirdyanov, A. V., Hagedorn, F., Knorre, A., Fedotova, E. Vaganov, Naurzbaev, M. M., Moiseev, P. & Rigling, 2012 (January): 20th century tree‐line advance and vegetation changes along an altitudinal transect in the Putorana Mountains, northern Siberia. Boreas , Vol. 41, pp. 56–67. 10.1111/j.1502‐3885.2011.00214.x. ISSN 0300‐9483. Ongoing climatic potentially affect ecosystems, but many regions observed are superimposed by human activities. We assessed how forest‐tundra ecotone has changed...
Abstract Historical photographs document that during the last century, forests have expanded upwards by 60–80 m into former tundra of pristine Ural mountains. We assessed how shift high‐altitude treeline ecotone might affect soil organic matter (SOM) dynamics. On gentle slopes Mali Iremel in Southern Urals, we (1) determined differences SOM stocks and properties from at 1360 above sea level (a.s.l.) to subalpine forest 1260 a.s.l., (2) measured carbon (C) nitrogen (N) mineralization soils 7...
Climate warming is expected to enhance productivity and growth of woody plants, particularly in temperature-limited environments at the northernmost or uppermost limits their distribution. However, this spatially uneven temporally variable, rise temperatures differently affects biomes forms. Here, applying a dendroecological approach with generalized additive mixed models, we analysed how shrubby junipers coexisting trees (larch pine species) responds rising along 5000-km latitudinal range...
Aim. Analysis of the current distribution mountain tundra in South Urals, determination and cataloging areas occupied by communities to assess possible threat their extinction 21 st century. Methodology. A visual search for potential locations alpine Southern Urals was conducted on satellite images from open mapping services (Yandex, Google) maximum resolution. The principal peaks ridges were subjected detailed survey (Bolshoy Taganay, Urenga, Zyuratkul, Bolshaya Suka, Uvan, Zigalga,...
Climate warming impacts on alpine treeline dynamics. However, we still lack robust assessments of the long-term climate tree recruitment at treeline, particularly in remote areas such as subarctic regions Russia subjected to different influences. We expected that treelines two may have features and dynamics patterns. analyzed variables assessed by quantifying using rings ca. 7000 trees four species (Betula pubescens Ehrh. ssp. tortuosa, Pinus sylvestris L., Picea abies Ledeb. obovata, Larix...
Abstract While climatic research about treeline has a long history, the conditions corresponding to upper limit of closed alpine grasslands remain poorly understood. Here, we propose definition for this limit, ‘grassline’, in analogy treeline, which is based on growing season length and soil temperature. Eighty-seven mountain summits across ten European ranges, covering three biomes (boreal, temperate, Mediterranean), were inventoried as part GLORIA project. Vascular plant cover was...
Climate change effects are strongest in forest ecosystems at the limit of their distributions. Despite evidence that treelines have shifted upwards by hundreds meters, knowledge associated changes stand biomass is limited. In this study, and to it during last centuries were estimated along 20 altitudinal transects reaching from historical (located 1950s–1960s) closed line up current on mountain slopes three subarctic regions Russia (Kola Peninsula, Polar Urals, Putorana Plateau) a 2200 km...
Treeline ecotones are considered early-warning monitors of the effects climate warming on terrestrial ecosystems, but it is still unclear how tree growth at treeline will track forecasted temperature rise in these cold environments. Here, we address this issue by analysing and projecting responses to two different cold-limited alpine treelines: Pinus uncinata Ram. Spanish Pyrenees Larix sibirica Ledeb. Russian Polar Urals. We assess radial-growth changes as a function age long-term...
Abstract Aim To quantify tree biomass and stand productivity of treeline ecotones identify driving factors. Location seven regions from the South to Polar Urals, spanning a latitudinal gradient 1,500 km. Taxa Picea obovata , Betula pubescens Larix sibirica. Methods Stand were estimated across 18 elevational transects species line closed forest based on allometric measurements 326 trees (including roots for 53 trees), structure assessments demographic patterns 20,600 trees. growth data linked...
Background: Treeline ecotones represent environmental boundaries that fluctuate in space and time thus induce changes plant taxonomic functional diversity.Aims: To study through diversity patterns along the treeline ecotone.Methods: In 2002, vegetation was sampled a gradient from upper montane forest to treeline–alpine transition South Ural Mountains, Russia. 2014, resampled traits were collected. We studied spatial temporal species composition, composition diversity.Results: Species changed...