A5010825430- Forest ecology and management
- Tree-ring climate responses
- Plant Water Relations and Carbon Dynamics
- Agroforestry and silvopastoral systems
- Tree Root and Stability Studies
- Ecology and Vegetation Dynamics Studies
- Software Testing and Debugging Techniques
- Botany and Plant Ecology Studies
- Mediterranean and Iberian flora and fauna
- Agriculture and Rural Development Research
- African Botany and Ecology Studies
- Forest Management and Policy
- Teaching and Learning Programming
- Moringa oleifera research and applications
- Forest Insect Ecology and Management
- Software Engineering Research
- Land Use and Ecosystem Services
- Horticultural and Viticultural Research
- Fire effects on ecosystems
- Soil Geostatistics and Mapping
- Agronomic Practices and Intercropping Systems
- Plant Ecology and Taxonomy Studies
- Advanced Malware Detection Techniques
- Bioenergy crop production and management
- Insect and Pesticide Research
Agricultural University of Athens
2019-2023
National Technical University of Athens
2023
Oklahoma Biological Survey
2021
University of Central Oklahoma
2021
University of Oklahoma
2021
Oklahoma State University
2021
Athens University of Economics and Business
2016-2017
Aristotle University of Thessaloniki
2017
Technological Educational Institute of Central Greece
2007-2014
Bentham Science Publishers (United Arab Emirates)
2013
Abstract Tree mortality is a key factor influencing forest functions and dynamics, but our understanding of the mechanisms leading to associated changes in tree growth rates are still limited. We compiled new pan‐continental tree‐ring width database from sites where both dead living trees were sampled (2970 4224 190 sites, including 36 species), compared early recent between that died those survived given event. observed decrease radial before death ca. 84% events. The extent duration these...
Abstract Severe droughts have the potential to reduce forest productivity and trigger tree mortality. Most trees face several drought events during their life therefore resilience dry conditions may be crucial long-term survival. We assessed how growth severe droughts, including its components resistance recovery, is related ability survive future by using a tree-ring database of surviving now-dead from 118 sites (22 species, >3,500 trees). found that, across variety regions species...
Tree mortality is a key driver of forest dynamics and its occurrence projected to increase in the future due climate change. Despite recent advances our understanding physiological mechanisms leading death, we still lack robust indicators risk that could be applied at individual tree scale. Here, build on previous contribution exploring differences growth level between trees died survived given event assess whether changes temporal autocorrelation, variance, synchrony time-series annual...
We investigated the variability of climate-growth relationship Aleppo pine across its distribution range in Mediterranean Basin. constructed a network tree-ring index chronologies from 63 sites region. Correlation function analysis identified relationships to climate factors for each site. also estimated dominant climatic gradients region using principal component monthly, seasonal, and annual mean temperature total precipitation 1,068 gridpoints. Variation ring width was primarily related...
Significance Climate extremes are major drivers of long-term forest growth trends, but we still lack appropriate knowledge to anticipate their effects. Here, apply a conceptual framework assess the vulnerability Circum-Mediterranean Abies refugia in response climate warming, droughts, and heat waves. Using tree-ring network process-based model, future Mediterranean forests. Models abrupt reductions for late 21st century when climatic conditions will be analogous most severe dry/heat spells...
Climate predictions for the Mediterranean Basin include increased temperatures, decreased precipitation, and frequency of extreme climatic events (ECE). These conditions are associated with tree growth vulnerability to pests diseases. The anatomy rings responds these environmental conditions. Quantitatively, width a ring is largely determined by rate duration cell division vascular cambium. In climate, this may occur throughout almost entire year. Alternatively, cease during relatively cool...
Efficient querying of huge volumes multidimensional data stored in cloud computing systems has become a necessity, due to the widespread storage facilities. With clouds getting larger and available growing it is mandatory develop fast, scalable efficient indexing schemes. In this paper, we propose A-tree, distributed scheme for capable handling both point range queries, appropriate environments. A performance evaluation A-tree against state-of-the-art competitor attests its superiority,...
The resin tapping history of an Aleppo pine (Pinus halepensis ssp halepensis) forest in Northern Evia, Central Greece was investigated by standard dendrochronological methods.Cross-sections disks tapped and non-tapped trees were taken from a representative, concerning structure management, stand.The identification scars the cross-sections, combined with tree-rings dating, provided information about methods applied, number width faces, tree diameter on time commencement duration.The...
Mutation testing is considered as one of the most powerful methods. It operates by asking testers to design tests that reveal a set mutants, which are purpose-made injected defects. Evidently, strength method strongly depends on used mutants. However, this dependence raises concerns regarding mutation practice implemented existing tools. Thus, it probable implementation inadequacies can lead incompetent results. In paper, we cross-evaluate three popular tools for Java, namely MUJAVA, MAJOR...
The relationship between radial growth of Aleppo pine (Pinus halepensis Mill.) in Greece and climate is calculated for the period 1955-1989. Fourteen populations are selected to represent at best distribution area Greece. parameters used monthly precipitation mean minimum maximum temperatures, from four meteorological stations chosen, after principal component analysis, their suitability express local forest sites. Response functions tree-ring width climate, were computed using Bootstrapped...
Background and purpose: Valonia oak (Quercus ithaburensis subsp.macrolepis (Kotschy) Hedge & Yalt.) is an east Mediterranean endemic, xerothermic deciduous tree of particular interest in forestry.There has been a growing demand lately to include the species reforestations Greece which also increased investigate its response climate change.The main purpose this research study valonia from dendrochronologicaldendroclimatological point view within distribution range.Materials Methods: Sampling...
We investigated the variability of climate-growth relationship Aleppo pine across its distribution range in Mediterranean Basin.We constructed a network tree-ring index chronologies from 63 sites region.Correlation function analysis identified relationships to climate factors for each site.We also estimated dominant climatic gradients region using principal component monthly, seasonal, and annual mean temperature total precipitation 1,068 gridpoints.Variation ring width was primarily related...