A5090645949- Tree-ring climate responses
- Plant Water Relations and Carbon Dynamics
- Forest ecology and management
- Wood and Agarwood Research
- Tree Root and Stability Studies
- Wood Treatment and Properties
- Geology and Paleoclimatology Research
- Ecology and Vegetation Dynamics Studies
- Forest Ecology and Biodiversity Studies
- African Botany and Ecology Studies
- Archaeology and ancient environmental studies
- Plant Diversity and Evolution
- Plant Pathogens and Fungal Diseases
- Cultural Heritage Materials Analysis
- Botany and Plant Ecology Studies
- Mycorrhizal Fungi and Plant Interactions
- Plant and animal studies
- Mediterranean and Iberian flora and fauna
- Horticultural and Viticultural Research
- Lichen and fungal ecology
- Cultural Heritage Management and Preservation
- Ancient Mediterranean Archaeology and History
- Forest Insect Ecology and Management
- Plant nutrient uptake and metabolism
- Plant Taxonomy and Phylogenetics
Ştefan cel Mare University of Suceava
2020-2025
University of Turin
2024-2025
Forest and Range Management Research Institute
2024
University of Cambridge
2019-2023
Archéologie des Amériques
2022
Università degli Studi della Tuscia
2022
University of Life Sciences in Poznań
2022
New York University
2021
University of Padua
2010-2019
Trees and Timber Institute
2004-2018
supplementary material of this IAWA list microscopic bark features, titled "recipes and protocols for histochemical tests", by solange c.
Quantitative wood anatomy analyzes the variability of xylem anatomical features in trees, shrubs and herbaceous species to address research questions related plant functioning, growth environment. Among more frequently considered are lumen dimensions wall thickness conducting cells, fibers several ray properties. The structural properties each feature mostly fixed once they formed, define a large extent its functionality, including transport storage water, nutrients, sugars hormones,...
Climate reconstructions for the Common Era are compromised by paucity of annually-resolved and absolutely-dated proxy records prior to medieval times. Where based on combinations different climate archive types (of varying spatiotemporal resolution, dating uncertainty, record length predictive skill), it is challenging estimate past amplitude ranges, disentangle relative roles natural anthropogenic forcing, or probe deeper interrelationships between variability human history. Here, we...
Within a tree the lumen of xylem conduits varies widely (by at least 1 order magnitude). Transversally in stem are smaller close to pith and larger outermost rings. Axially ( i.e. from petioles roots) widen apex downwards same ring. This axial variation is proposed as being most efficient anatomical adjustment for stabilizing hydraulic path-length resistance with progressive growth height. The hydrodynamic physical) constraint shapes whole column very similar way different species...
It is generally accepted that animal heartbeat and lifespan are often inversely correlated, however, the relationship between productivity longevity has not yet been described for trees growing under industrial pre-industrial climates. Using 1768 annually resolved absolutely dated ring width measurement series from living dead conifers grew in undisturbed, high-elevation sites Spanish Pyrenees Russian Altai over past 2000 years, we test hypothesis of grow fast-die young. We find maximum tree...
Global temperatures are rising at an unprecedented rate, but environmental responses often difficult to recognize and quantify. Long-term observations of plant phenology, the annually recurring sequence developmental stages, can provide sensitive measures climate change important information for ecosystem services. Here, we present 419 354 recordings first flowering date from 406 species in UK between 1753 2019 CE. Community-wide advanced by almost one month on average when comparing all...
Different irrigation effects on stem radius variation (ΔR) and maximum daily shrinkage (MDS) in Populus deltoides 'Dvina' Populus×canadensis 'I-214' were studied to assess differences drought tolerance between clones. One-year-old trees growing concrete tanks submitted two regimes (natural rainfall irrigation) from 24 June 10 August, ΔR was monitored by automatic point dendrometers. Independently of the regime, showed a higher radial increment than 'I-214'. In both clones, first response...
With the adoption of a number anti-illegal logging laws, treaties, memoranda, and international agreements around world, there is broad renewed interest in wood identification, especially field at macroscopic level. In response to this interest, begin fill an obvious gap corpus anatomical reference material, we review several prominent English-language publications on identification order form list characters. We compile characters organize them spirit IAWA lists for hardwood softwood...
Across land plants there is a general pattern of xylem conduit diameters widening towards the stem base thus reducing accumulation hydraulic resistance as grow taller. In conifers, conduits consist cells with closed end-walls and water must flow through bordered pits imbedded in side walls. As consequence both cell size, which determines numbers walls that conductive stream cross, well characteristics themselves, crucially affect total resistance. Because size pit features influence tandem,...
Abstract More than 200 years after von Humboldt’s pioneering work on the treeline, our understanding of cold distribution limit upright plant growth is still incomplete. Here, we use wood anatomical techniques to estimate degree stem cell wall lignification in 1770 species from six continents. Contrary frequent belief that small plants are less lignified, show ‘woody’ herbs varies considerably. Although trees and shrubs always exhibit lignified walls their stems, above treeline may contain...
Abstract The largest explosive volcanic eruption of the Common Era in terms estimated sulphur yield to stratosphere was identified glaciochemical records 40 years ago, and dates mid-thirteenth century. Despite eventual attribution Samalas (Rinjani) volcano Indonesia, date remains uncertain, climate response only partially understood. Seeking a more global perspective on summer surface temperature hydroclimate change following eruption, we present an analysis 249 tree-ring chronologies...
The high temperature sensitivity of pine trees in northern Fennoscandia has led to some the most reliable tree-ring climate reconstructions world for past millennia. However, wood anatomical anomalies that likely reflect temperature-induced reductions cell wall lignification, so-called Blue Rings (BRs), have not yet been systematically investigated and shrubs Europe. Here, we present frontier research on occurrence BRs Pinus sylvestris Juniperus communis (L) s.l. from upper treeline Norway...
<title>Abstract</title> Trees are integral to ecosystems and hold considerable economic importance. Their exceptional longevity modular structure also make them valuable models for studying the long-term accumulation of somatic mutations epimutations in plants. Empirical evidence indicates that annual rate these stochastic events correlates negatively with generation time, suggesting species long lifespans have evolved mechanisms mitigate build-up deleterious variants. It has been...