Search results for: Angelica Feurdean

Items from 1 to 20 out of 36 results

article

Fire frequency and intensity associated with functional traits of dominant forest type in the Balkans during the Holocene

Angelica Feurdean, Spassimir Tonkov, Mirjam Pfeiffer, Andrei Panait, more

European Journal of Forest Research > 2019 > 138 > 6 > 1049-1066

Disturbances by fire are among the most important processes that shape forest dynamics and diversity. However, the long-term variability of fire disturbance regimes in many European forests and specifically in the mountains of the Balkan Peninsula is not well understood. Here, we present the first Holocene record of fire regimes based on macrocharcoal morphologies in combination with pollen-based...

article

Impacts of forest loss in the eastern Carpathian Mountains: linking remote sensing and sediment changes in a mid-altitude catchment (Red Lake, Romania)

Aritina Haliuc, Angelica Feurdean, Marcel Mîndrescu, Alexandru Frantiuc, more

Regional Environmental Change > 2019 > 19 > 2 > 461-475

Worldwide accelerated forest loss and the associated environmental impacts are important environmental concerns. In this study, we integrate evidence from historical maps and a Landsat-derived time series of catchment-scale forest cover changes with a multi-proxy, palaeolimnological reconstruction spanning the last 150 years from Red Lake (Eastern Carpathians, Romania) to better understand the impact...

article

Response of plant communities to climate change during the late Holocene: Palaeoecological insights from peatlands in the Alaskan Arctic

Mariusz Gałka, Graeme T. Swindles, Marta Szal, Randy Fulweber, more

Ecological Indicators > 2018 > 85 > C > 525-536

High-resolution plant macrofossil records were examined alongside pollen, micro- and macro-charcoal, and testate amoeba data to elucidate the dynamics of two permafrost peatlands in the northern foothills of the Brooks Range, Alaskan Arctic. The vegetation dynamics of these two peatlands were driven by autogenic processes reflecting the development trajectory of the peatlands towards ombrotrophic...

article

How warm? How wet? Hydroclimate reconstruction of the past 7500years in northern Carpathians, Romania

Andrei-Cosmin Diaconu, Mónika Tóth, Mariusz Lamentowicz, Oliver Heiri, more

Palaeogeography, Palaeoclimatology, Palaeoecology > 2017 > 482 > C > 1-12

As natural and anthropogenic ecosystems are dependent on the local water availability, understanding past changes in hydroclimate represents a priority in research concerning past climate variability. Here, we used testate amoebae (TA) and chironomid analysis on a radiocarbon dated complex of small pond and peat bog sediment profiles from an ombrotrophic bog (Tăul Muced, northern Carpathians, Romania)...

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Plant succession in a peatland in the Eastern Carpathian Mts. (CE Europe) during the last 10,200years: Implications for peatland development and palaeoclimatic research

Mariusz Gałka, Ioan Tanţău, Angelica Feurdean

Review of Palaeobotany and Palynology > 2017 > 244 > C > 203-216

Mountain ombrotrophic peatlands in Central Europe host many protected and rare plant species. However, knowledge of the development of mountain peatlands and the past distribution of wetland plants is poorly documented. Here we used high-resolution, contiguous plant macrofossils analysis of two distinct cores taken from central and marginal parts of a small mountain peatland (Poiana Ştiol) in the...

article

Broadleaf deciduous forest counterbalanced the direct effect of climate on Holocene fire regime in hemiboreal/boreal region (NE Europe)

Angelica Feurdean, Siim Veski, Gabriela Florescu, Boris Vannière, more

Quaternary Science Reviews > 2017 > 169 > C > 378-390

Disturbances by fire are essential for the functioning of boreal/hemiboreal forests, but knowledge of long-term fire regime dynamics is limited. We analysed macrocharcoal morphologies and pollen of a sediment record from Lake Lielais Svētiņu (eastern Latvia), and in conjunction with fire traits analysis present the first record of Holocene variability in fire regime, fuel sources and fire types in...

article

Rich fen development in CE Europe, resilience to climate change and human impact over the last ca. 3500years

Mariusz Gałka, Liene Aunina, Angelica Feurdean, Simon Hutchinson, more

Palaeogeography, Palaeoclimatology, Palaeoecology > 2017 > 473 > C > 57-72

Here, for the first time in SE Poland, we document the long-term development of a rich fen and assess its sensitivity to climate change and human impacts over the last ca. 3500years. Our results are based on a high-resolution, continuous plant macrofossil remains, mollusc and pollen record, complemented by geochemical, mineral magnetic and physical characterisation, and radiocarbon dating from Bagno...

article

Fire has been an important driver of forest dynamics in the Carpathian Mountains during the Holocene

Angelica Feurdean, Gabriela Florescu, Boris Vannière, Ioan Tanţău, more

Forest Ecology and Management > 2017 > 389 > C > 15-26

Fire frequency and severity are key parameters in evaluating fire-mediated changes in ecosystems, but these metrics are rarely reconstructed at extensive temporal scales. Notably our understanding of the role of fire regime dynamics in the functioning and biodiversity of Central Eastern European temperate forests is limited because investigation of the effect of fire has been neglected. To fill this...

article

Long-term land-cover/use change in a traditional farming landscape in Romania inferred from pollen data, historical maps and satellite images

Angelica Feurdean, Catalina Munteanu, Tobias Kuemmerle, Anne B. Nielsen, more

Regional Environmental Change > 2017 > 17 > 8 > 2193-2207

Traditional farming landscapes in the temperate zone that have persisted for millennia can be exceptionally species-rich and are therefore key conservation targets. In contrast to Europe’s West, Eastern Europe harbours widespread traditional farming landscapes, but drastic socio-economic and political changes in the twentieth century are likely to have impacted these landscapes profoundly. We reconstructed...

article

Pattern of richness and distribution of groundwater Copepoda (Cyclopoida: Harpacticoida) and Ostracoda in Romania: an evolutionary perspective

Sanda Iepure, Angelica Feurdean, Carmen Bădăluţă, Viorica Nagavciuc, more

Biological Journal of the Linnean Society > 119 > 3 > 593 - 608

It is assumed that the south‐eastern Europe and especially the Romanian Carpathians were important regions for surface and underground invertebrates survival during glacial periods and acted as a source of post‐glacial colonization processes. We analyzed data from 233 georeferenced records for 164 species of groundwater copepods and ostracods from Romania and used a comparative approach to recognize...

article

A 9000year record of cyclic vegetation changes identified in a montane peatland deposit located in the Eastern Carpathians (Central-Eastern Europe): Autogenic succession or regional climatic influences?

Mariusz Gałka, Ioan Tanţău, Vasile Ersek, Angelica Feurdean

Palaeogeography, Palaeoclimatology, Palaeoecology > 2016 > 449 > C > 52-61

We present a high-resolution, continuous plant macrofossil remains record complemented by a pollen sequence from Tăul Muced bog, in the Eastern Carpathian Mountains (Romania). The record spans the last 9000years and we test whether peatland development in the Eastern Carpathians is linked to climate change or to autogenic succession. We find that Sphagnum magellanicum was the dominant peat-forming...

article

Tree and timberline shifts in the northern Romanian Carpathians during the Holocene and the responses to environmental changes

Angelica Feurdean, Mariusz Gałka, Ioan Tanţău, Anca Geantă, more

Quaternary Science Reviews > 2016 > 134 > C > 100-113

High altitude environments are experiencing more rapid changes in temperature than the global average with the risk of losing essential ecosystem services in mountain environments. The Carpathians Mountains are regarded as hosting Europe's most pristine mountain ecosystems, yet the paucity of past environmental records limits our understanding of their sensitivity to the various drivers of change...

article

The role of fire in landscape dynamics: An example of two sediment records from the Rodna Mountains, northern Romanian Carpathians

Aritina Haliuc, Simon M. Hutchinson, Gabriela Florescu, Angelica Feurdean

Catena > 2016 > 137 > Complete > 432-440

Fire is an important disturbance agent worldwide and one of the major causes of geomorphological change. Dependent on its characteristics (size, duration, temperature), fire induces changes in soil stability, modifying infiltration and promoting soil erosion. Here, we employ a suite of physical (mineral magnetic, loss-on-ignition), geochemical (XRF derived elemental data), biological (macro-charcoal,...

article

Recent sediment accumulation rates in contrasting lakes in the Carpathians (Romania): impacts of shifts in socio-economic regime

Simon M. Hutchinson, F. Olusola Akinyemi, Marcel Mîndrescu, Robert Begy, more

Regional Environmental Change > 2016 > 16 > 2 > 501-513

Longer-term environmental studies are increasingly used to better understand contemporary ecosystems conditions and for forecasting their future trajectories. Here, we use radiometric measurements and the characterisation of sediment properties from six mountain and a lowland lake in Central Eastern Europe with the aim to assess temporal and spatial variability in sediment accumulation rates (SARs)...

article

Development of Rich Fen on the SE Baltic Coast, Latvia, during the Last 7500 Years, Using Paleoecological Proxies: Implications for Plant Community Development and Paleoclimatic Research

Mariusz Gałka, Liene Aunina, Kazimierz Tobolski, Angelica Feurdean

Wetlands > 2016 > 36 > 4 > 689-703

We present the paleoecological development of a rich fen located in the dune area on the SE Baltic coast, during the last 7500 years. The Apšuciems Mire hosts rare and endangered plant communities in Europe, such as Schoenus ferrugineus and Cladium mariscus. Analysis at high-resolution of plant macroremains in two peat cores was carried out to reconstruct local vegetation succession and fluctuations...

article

Lateglacial/Holocene transition to mid-Holocene: Vegetation responses to climate changes in the Apuseni Mountains (NW Romania)

Roxana Grindean, Angelica Feurdean, Bogdan Hurdu, Sorina Fărcaş, more

Quaternary International > 2015 > 388 > Complete > 76-86

Pollen datasets from central-eastern Europe, a region that for long time has been lacking quality palaeoecological records, are becoming increasingly available and these allow an evaluation of past vegetation sensitivity to climate change. Here, we use a new pollen and non-pollen palynomorph (NPP) record supported by eight AMS radiocarbon measurements from the Ic Ponor peat sequence, NW Romania, covering...

article

Closing and exposing the gaps in knowledge: INTIMATE workshop on terrestrial records from central Eastern Europe for the Last Glacial–Interglacial transition

Aurel Perşoiu, Angelica Feurdean, Wim Z. Hoek

Quaternary International > 2015 > 388 > Complete > 1-3

article

Origin of the forest steppe and exceptional grassland diversity in Transylvania (central‐eastern Europe)

Angelica Feurdean, Elena Marinova, Anne B. Nielsen, Johan Liakka, more

Journal of Biogeography > 42 > 5 > 951 - 963

Aim The forest steppe of the Transylvanian Plain is a landscape of exceptionally diverse steppe‐like and semi‐natural grasslands. Is this vegetation a remnant of a once continuous temperate forest extensively cleared by humans, or has the area, since the last glacial, always been a forest steppe? Understanding the processes that drive temperate grassland formation is important because effective management...

article

Vegetation sensitivity to climate changes and human impact in the Harghita Mountains (Eastern Romanian Carpathians) over the past 15 000 years

IOAN TANŢĂU, ANGELICA FEURDEAN, JACQUES‐LOUIS DE BEAULIEU, MAURICE REILLE, more

Journal of Quaternary Science > 29 > 2 > 141 - 152

Although few compared with Western Europe, continental records from Central–Eastern Europe are increasingly confirming that rapid climate fluctuations of the past 15 000 years are also present in records situated far from the North Atlantic region. In the present study a new pollen record supported by 11 AMS ¹⁴C dates, from Luci (Eastern Romanian Carpathians), was used to reconstruct the Lateglacial...

article

Looking forward through the past: identification of 50 priority research questions in palaeoecology

Alistair W. R. Seddon, Anson W. Mackay, Ambroise G. Baker, H. John B. Birks, more

Journal of Ecology > 102 > 1 > 256 - 267

Priority question exercises are becoming an increasingly common tool to frame future agendas in conservation and ecological science. They are an effective way to identify research foci that advance the field and that also have high policy and conservation relevance.To date, there has been no coherent synthesis of key questions and priority research areas for palaeoecology, which combines biological,...

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Search results for: Angelica Feurdean

Fire frequency and intensity associated with functional traits of dominant forest type in the Balkans during the Holocene

Impacts of forest loss in the eastern Carpathian Mountains: linking remote sensing and sediment changes in a mid-altitude catchment (Red Lake, Romania)

Response of plant communities to climate change during the late Holocene: Palaeoecological insights from peatlands in the Alaskan Arctic

How warm? How wet? Hydroclimate reconstruction of the past 7500years in northern Carpathians, Romania

Plant succession in a peatland in the Eastern Carpathian Mts. (CE Europe) during the last 10,200years: Implications for peatland development and palaeoclimatic research

Broadleaf deciduous forest counterbalanced the direct effect of climate on Holocene fire regime in hemiboreal/boreal region (NE Europe)

Rich fen development in CE Europe, resilience to climate change and human impact over the last ca. 3500years

Fire has been an important driver of forest dynamics in the Carpathian Mountains during the Holocene

Long-term land-cover/use change in a traditional farming landscape in Romania inferred from pollen data, historical maps and satellite images

Pattern of richness and distribution of groundwater Copepoda (Cyclopoida: Harpacticoida) and Ostracoda in Romania: an evolutionary perspective

A 9000year record of cyclic vegetation changes identified in a montane peatland deposit located in the Eastern Carpathians (Central-Eastern Europe): Autogenic succession or regional climatic influences?

Tree and timberline shifts in the northern Romanian Carpathians during the Holocene and the responses to environmental changes

The role of fire in landscape dynamics: An example of two sediment records from the Rodna Mountains, northern Romanian Carpathians

Recent sediment accumulation rates in contrasting lakes in the Carpathians (Romania): impacts of shifts in socio-economic regime

Development of Rich Fen on the SE Baltic Coast, Latvia, during the Last 7500 Years, Using Paleoecological Proxies: Implications for Plant Community Development and Paleoclimatic Research

Lateglacial/Holocene transition to mid-Holocene: Vegetation responses to climate changes in the Apuseni Mountains (NW Romania)

Closing and exposing the gaps in knowledge: INTIMATE workshop on terrestrial records from central Eastern Europe for the Last Glacial–Interglacial transition

Origin of the forest steppe and exceptional grassland diversity in Transylvania (central‐eastern Europe)

Vegetation sensitivity to climate changes and human impact in the Harghita Mountains (Eastern Romanian Carpathians) over the past 15 000 years

Looking forward through the past: identification of 50 priority research questions in palaeoecology

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