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Selection: with tag holocene [17 articles] 


Climate extremes and predicted warming threaten Mediterranean Holocene firs forests refugia

Proceedings of the National Academy of Sciences, Vol. 114, No. 47. (21 November 2017), pp. E10142-E10150,


[Significance] Climate extremes are major drivers of long-term forest growth trends, but we still lack appropriate knowledge to anticipate their effects. Here, we apply a conceptual framework to assess the vulnerability of Circum-Mediterranean Abies refugia in response to climate warming, droughts, and heat waves. Using a tree-ring network and a process-based model, we assess the future vulnerability of Mediterranean Abies forests. Models anticipate abrupt growth reductions for the late 21st century when climatic conditions will be analogous to the most severe dry/heat ...


Climate change: the 2015 Paris Agreement thresholds and Mediterranean basin ecosystems

Science, Vol. 354, No. 6311. (28 October 2016), pp. 465-468,


[A warming limit for the Mediterranean basin] Pollen cores from sediments provide rich detail on the history of vegetation and climate in the Mediterranean during the Holocene (the most recent ~10,000 years). Guiot and Cramer used this information as a baseline against which to compare predictions of future climate and vegetation under different climate-change scenarios. Vegetation and land-use systems observed in the Holocene records may persist under a 1.5°C warming above preindustrial temperature levels. A 2°C warming, however, is likely over the ...


(INRMM-MiD internal record) List of keywords of the INRMM meta-information database - part 19

(February 2014)
Keywords: historical-perspective   history   holdouts   holocene   homeostasis   homogenous-spatial-units   homonyms   honey   honey-production   honeydew   honeydew-honey   hopea-odorata   horizon-scan   horticulture   host   host-chemistry   host-defense   host-parasite   host-plant   host-range   host-resistance   host-taxonomy   hotspot   human-behaviour   human-centered-automation   human-diseases   human-health   human-impact   human-influence   human-machine-interface   human-refuge   human-rights   humboldt   humidity   humus   hungary   hunting   hura-crepitans   hutchinsonian-niche   hybrid-incompatibility   hybrid-poplars   hybridisation   hydraulic-conductivity   hydraulic-properties   hydrogeology   hydrology   hydropower-energy   hyena-hyaena   hylastes-ater   hylastes-cunicularius   hylobius-abietis   hylurgops-palliatus   hylurgus-lingniperda   hymenaea-courbaril   hymenoscyphus-pseudoalbidus   hyper-heuristics   hypericum-androsaemum   hypericum-inodorum   hyphantria-cunea   hypoglycin-a   hypothesizing-after-the-results-are-known   hypoxylon-mammatum   hypoxylon-mediterraneum   hypsipyla-robusta   hyrcanian-region   hysteresis   i-score   iatrogenic-problem   iberian-peninsula   iberian-region   ica   ice-cover   ice-nucleation-active-bacteria   ice-sheet   iceland   idl   ieee   ignition-factors   ignorance   iland   ilarvirus   ilex-aquifolium   ilex-colchica   ilex-hyrcana   ilex-spp   illyrian   ilwis   image-classification   image-processing-analysis   impact   impact-factor   impacts   impatiens-spp   importance   in-situ-conservation   in-vitro-culture   inaction   inbreeding   incompatibility   inrmm-list-of-tags  


List of indexed keywords within the transdisciplinary set of domains which relate to the Integrated Natural Resources Modelling and Management (INRMM). In particular, the list of keywords maps the semantic tags in the INRMM Meta-information Database (INRMM-MiD). [\n] The INRMM-MiD records providing this list are accessible by the special tag: inrmm-list-of-tags ( ). ...


Holocene forcing of the Indian monsoon recorded in a stalagmite from Southern Oman

Science, Vol. 300, No. 5626. (2003), pp. 1737-1739,


A high-resolution oxygen-isotope record from a thorium-uranium-dated stalagmite from southern Oman reflects variations in the amount of monsoon precipitation for the periods from 10.3 to 2.7 and 1.4to 0.4thousand years before the present (ky B.P.). Between 10.3 and 8 ky B.P., decadal to centennial variations in monsoon precipitation are in phase with temperature fluctuations recorded in Greenland ice cores, indicating that early Holocene monsoon intensity is largely controlled by glacial boundary conditions. After ~8 ky B.P., monsoon precipitation decreases gradually in ...


Quercus suber range dynamics by ecological niche modelling: from the Last Interglacial to present time

Quaternary Science Reviews, Vol. 119 (July 2015), pp. 85-93,


[Highlights] [::] ENM can provide statistical quantitative reconstructions of the species history. [::] New insights suggest the past occurrence of cork oak even in the Levantine. [::] Despite several range oscillations many putative refugia were identified. [::] Past species dynamics are informative for the potential responses to future changes. [Abstract] Ecological Niche Modelling (ENM) is widely used to depict species potential occurrence according to environmental variables under different climatic scenarios. We tested the ENM approach to infer past range dynamics of cork oak, a keystone species of ...


On the Holocene vegetation history of the Argive Plain (Peloponnese, southern Greece)

In Vegetation History and Archaeobotany, Vol. 2, No. 4. (1993), pp. 187-203,

Late Holocene persistence of Abies alba in low-mid altitude deciduous forests of central and southern Italy: new perspectives from charcoal data

Journal of vegetation science, Vol. 25, No. 5. (1 September 2014), pp. 1299-1310,
Keywords: abies-alba   charcoal   holocene   italy  


Questions Pollen data for Abies alba Mill., a key European tree species, show broad occurrence in the Italian peninsula in the early to mid-Holocene diffusion (until ca. 6000 yr ago) along the Italian peninsula and a strong decline/local extinction starting ca. 5000 yr ago. This decline has been attributed to climate change. Recently, high-resolution pollen studies, mainly in northern Italian sites claim that A. alba disappearance was mainly due to human impact. We examined the presence of A. alba in archaeological sites of southern and ...


Pollen-based quantitative reconstructions of Holocene regional vegetation cover (plant-functional types and land-cover types) in Europe suitable for climate modelling

Global Change Biology, Vol. 21, No. 2. (1 February 2015), pp. 676-697,


We present quantitative reconstructions of regional vegetation cover in north-western Europe, western Europe north of the Alps, and eastern Europe for five time windows in the Holocene [around 6k, 3k, 0.5k, 0.2k, and 0.05k calendar years before present (bp)] at a 1° × 1° spatial scale with the objective of producing vegetation descriptions suitable for climate modelling. The REVEALS model was applied on 636 pollen records from lakes and bogs to reconstruct the past cover of 25 plant taxa grouped into 10 plant-functional ...


Holocene changes in vegetation composition in northern Europe: why quantitative pollen-based vegetation reconstructions matter

Quaternary Science Reviews, Vol. 90 (April 2014), pp. 199-216,


Eighteen Holocene fossil pollen records were compiled in northern Europe. The REVEALS model was applied to quantify the past regional vegetation abundances. The REVEALS estimates are more informative than the untransformed pollen percentages. New insights in vegetation evenness and the timing and magnitude of past plant composition changes. Influence of Neolithic deforestation on plant composition was more extensive than previously assumed. We present pollen-based reconstructions of the spatio-temporal dynamics of northern European regional vegetation abundance through the Holocene. We apply ...


The Holocene spread of Picea abies (L.) Karst. in Fennoscandia and adjacent areas

Journal of Biogeography, Vol. 31, No. 9. (1 September 2004), pp. 1523-1548,
Keywords: fennoscandia   holocene   picea-abies  


Aim  The Holocene spread of Picea abies in Fennoscandia is well established from many sites and thus provides an opportunity for detailed study of the dynamics of tree spread and population expansion. Early- and mid-Holocene macrofossil evidence for presence of P. abies in Fennoscandia has questioned traditional interpretations of the timing and direction of its spread. This paper aims to determine when, from where and by which pathways P. abies spread into Fennoscandia. Understanding the character and dynamics of this spread ...


The Holocene spread of spruce in Scandinavia



The Holocene spread of Picea abies in Scandinavia provides an excellent opportunity for detailed study of the dynamics of tree spread and population expansion. Early- and mid-Holocene macrofossil evidence for the presence of Picea abies in Scandinavia has questioned traditional interpretations of the timing and direction of its spread. This study aims to determine the pattern of the spread of Picea abies in Scandinavia from pollen and other data, to evaluate the significance of possible early outpost populations and to deduce ...


Invasion of Norway spruce diversifies the fire regime in boreal European forests

Journal of Ecology, Vol. 99, No. 2. (1 March 2011), pp. 395-403,


1. Global wildfire activity and biomass burning have varied substantially during the Holocene in both time and space. At the regional to continental scale, macroclimate is considered to be the predominant control regulating wildfire activity. By contrast, the role of forest tree composition is often considered as a subsidiary factor in studies addressing temporal variation in regional wildfire activity. 2. Here, we assemble a spatially comprehensive data set of 75 macroscopic charcoal records that reflect local burning and forest landscapes that are spread ...


Holocene environmental and climatic changes at Gorgo Basso, a coastal lake in southern Sicily, Italy

Quaternary Science Reviews, Vol. 28, No. 15-16. (19 July 2009), pp. 1498-1510,
Keywords: charcoal   climate-change   holocene   pollen   sicily  


We used a new sedimentary record to reconstruct the Holocene vegetation and fire history of Gorgo Basso, a coastal lake in south-western Sicily (Italy). Pollen and charcoal data suggest a fire-prone open grassland near the site until ca 10,000 cal yr BP (8050 cal BC), when Pistacia shrubland expanded and fire activity declined, probably in response to increased moisture availability. Evergreen Olea europaea woods expanded ca 8400 to decline abruptly at 8200 cal yr BP, when climatic conditions became drier at other sites in ...


The pace of Holocene vegetation change – testing for synchronous developments

Quaternary Science Reviews, Vol. 30, No. 19-20. (September 2011), pp. 2805-2814,


Mid to high latitude forest ecosystems have undergone several major compositional changes during the Holocene. The temporal and spatial patterns of these vegetation changes hold potential information to their causes and triggers. Here we test the hypothesis that the timing of vegetation change was synchronous on a sub-continental scale, which implies a common trigger or a step-like change in climate parameters. Pollen diagrams from selected European regions were statistically divided into assemblage zones and the temporal pattern of the zone boundaries ...


Reconstructing Holocene European land cover using data-model integration

Quaternary International, Vol. 279-280 (November 2012), 314,


The transition from hunter-gathers to agro-pastoralists led to profound changes in terrestrial ecosystem through deforestation, cultivation, grazing, irrigation and fire, which in turn may have affected regional and global climate over the Holocene. To address these issues, quantitative land cover reconstructions are needed. Previous attempts have been limited by: availability of primary data, availability of methods for interpolating palaeoecological records in space and time, and lack of coordinated efforts between paleoecologists and modelers. Within the ARVE group we have developed a ...


The climate of Europe during the Holocene: a gridded pollen-based reconstruction and its multi-proxy evaluation

Quaternary Science Reviews, Vol. 112 (March 2015), pp. 109-127,


[Highlights] [::] We reconstruct the climate of Europe during the Holocene from pollen data. [::] The data is presented as gridded maps at 1000 year time intervals. [::] The reconstruction is evaluated against those from other proxies/studies. [::] Generally good agreement is shown apart from with Chironomids. [::] Results indicate greater warming in winter than in summer over Northern Europe. [Abstract] We present a new gridded climate reconstruction for Europe for the last 12,000 years based on pollen data. The reconstruction is an update of Davis et ...


Placing unprecedented recent fir growth in a European-wide and Holocene-long context

Frontiers in Ecology and the Environment, Vol. 12, No. 2. (March 2014), pp. 100-106,


Forest decline played a pivotal role in motivating Europe's political focus on sustainability around 35 years ago. Silver fir (Abies alba) exhibited a particularly severe dieback in the mid-1970s, but disentangling biotic from abiotic drivers remained challenging because both spatial and temporal data were lacking. Here, we analyze 14 136 samples from living trees and historical timbers, together with 356 pollen records, to evaluate recent fir growth from a continent-wide and Holocene-long perspective. Land use and climate change influenced forest growth ...

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Meta-information Database (INRMM-MiD).
This database integrates a dedicated meta-information database in CiteULike (the CiteULike INRMM Group) with the meta-information available in Google Scholar, CrossRef and DataCite. The Altmetric database with Article-Level Metrics is also harvested. Part of the provided semantic content (machine-readable) is made even human-readable thanks to the DCMI Dublin Core viewer. Digital preservation of the meta-information indexed within the INRMM-MiD publication records is implemented thanks to the Internet Archive.
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INRMM-MiD was experimentally established by the Maieutike Research Initiative in 2008 and then improved with the help of several volunteers (with a major technical upgrade in 2011). This new integrated interface is operational since 2014.