Article
Multidisciplinary Sciences
Agnieszka Sutkowska, Jozef Mitka, Tomasz Warzecha, Jakub Bunk, Julia Rutkowska, Roman Bathelt
Summary: Genetic diversity of Gladiolus imbricatus in 11 populations from five mountain ranges was studied, with the highest diversity found in the Tatra and Pieniny Mts. The study tested a hypothesis on the microrefugial nature of plant populations in the Pieniny Mts. Results showed weak genetic structuring among populations, potentially due to gene flow influenced by historical sheep transportation between different mountain ranges.
SCIENTIFIC REPORTS
(2021)
Article
Plant Sciences
Keiko Kitamura, Kanji Namikawa, Yoshiaki Tsuda, Makoto Kobayashi, Tetsuya Matsui
Summary: Siebold's beech, Fagus crenata, is distributed across Japan, including Hokkaido and the islands in the Japan Sea. Genetic studies reveal that the populations on Okushiri Island are not formed by a single colonization event, but rather by multiple events. The genetic diversity of Okushiri Island populations is similar to that of the mainland, and individuals on the island show mixed genetic characteristics from Hokkaido and the Tohoku region. The separation between Okushiri Island and Hokkaido occurred before the Middle Pleistocene. This study also discusses the potential survival of Siebold's beech during the last glacial maximum on northern islands in the Japan Sea.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Multidisciplinary Sciences
Philipp Kirschner, Manolo F. Perez, Eliska Zaveska, Isabel Sanmartin, Laurent Marquer, Birgit C. Schlick-Steiner, Nadir Alvarez, Florian M. Steiner, Peter Schoenswetter
Summary: Quaternary climatic oscillations had a significant impact on European biogeography, particularly on the Eurasian steppe biome. Through the analysis of plant and insect species, consistent demographic responses of expansion during cold stages and contraction during warm stages were observed. Climate was identified as a driving force underlying genetic variance patterns at the biome level.
NATURE COMMUNICATIONS
(2022)
Article
Biology
Lili Dong, Jianan Wang, Guohua Wang
Summary: This article proposes a statistical framework and algorithm ASAS-EGB for ASAS analysis using the gene transcriptome. The framework can provide better inferential performance than using event isoforms and supports both single-end and paired-end RNA-seq data.
COMPUTERS IN BIOLOGY AND MEDICINE
(2023)
Article
Geochemistry & Geophysics
Ye Hui, Xueru Bai, Feng Zhou
Summary: This article presents an approximate Bayesian inference framework for joint time-frequency analysis of micromotion targets in complex environments, which constructs a sparse observation model and probabilistic graphical model with a Gamma-complex Gaussian prior to solve high-dimension problems, and effectively solves model parameters using SWVI to obtain better JTF features and RID images.
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
(2021)
Article
Astronomy & Astrophysics
Wenjie Zhou, Jinniu Hu, Ying Zhang, Hong Shen
Summary: Understanding the equation of state (EOS) of neutron stars is important, but there are uncertainties in theoretical predictions. To address this, we use a deep neural network to fit the EOS using available data. Based on our assumptions, we find that the maximum neutron star mass is 2.38-2.41 solar masses, with a radius of 12.30-12.31 km.
ASTROPHYSICAL JOURNAL
(2023)
Article
Plant Sciences
Stanislav Bashalkhanov, Jeremy S. Johnson, Om P. Rajora
Summary: Climate change has led to a significant decline in red spruce populations in the Southern Appalachians. The study found that red spruce has undergone introgressive hybridization with black spruce, and the northern populations of red spruce have higher genetic diversity and differentiation. Fossil data suggests that red spruce and black spruce occupied separate refugia during the last glaciation period and experienced post-glacial migration and hybridization. The projected climate change may lead to the extinction of pure southern red spruce populations.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Multidisciplinary Sciences
Ilia Korvigo, Anna A. Igolkina, Arina A. Kichko, Tatiana Aksenova, Evgeny E. Andronov
Summary: High-throughput sequencing of amplicon libraries is widely used for studying the taxonomic structure of microbial communities. However, this method perturbs the initial community structure, compromising data robustness. In this study, we developed a mathematical model and conducted experiments to investigate the effects of PCR cycles on the relative abundances of taxa. Our results show that the heterogeneity in amplicon efficiencies leads to non-linear and substantial changes in relative abundances during PCR, which is associated with the energy of DNA template secondary structures.
Article
Agriculture, Dairy & Animal Science
Edoardo Velli, Romolo Caniglia, Federica Mattucci
Summary: This study provides the most geographically-representative evolutionary history of the European wildcat based on mitochondrial DNA sequences. The genetic variability of European wildcats was mainly caused by Pleistocene climatic changes and influenced by natural gene flow and anthropogenic hybridization. Understanding the phylogenetic and phylogeographic patterns is crucial for conservation strategies.
Article
Engineering, Mechanical
Dongdong You, Xiaocheng Shen, Gaojun Liu, Gaixia Wang
Summary: This paper introduces a novel method for signal anomaly identification using LSTM model for signal prediction and Bayesian inference. By analyzing various signal abnormality conditions and utilizing Bayesian hypothesis test approach to determine signal status and quantify fault probability, the proposed method demonstrates improved accuracy and reliability of prediction in comparison with existing methods.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2021)
Article
Plant Sciences
Marek Slenker, Marian Perny, Judita Zozomova-Lihova, Karol Marhold
Summary: The Balkan Peninsula, especially Greece, is a significant biodiversity hotspot in the Mediterranean region with many endemic plants. The study focused on Cardamine barbaraeoides, a Greek endemic species found only in the Pindos mountains, and provided reliable morphological characters for its identification. Reports of this species from other Greek floristic regions were based on misidentifications of specimens of C. acris.
Article
Geosciences, Multidisciplinary
Giri Gopalan, Birgir Hrafnkelsson, Gudfinna Adalgeirsdottir, Finnur Palsson
Summary: The study develops Bayesian statistical models for inferring ice softness and basal sliding parameters, applied to Langjokull in Iceland. The posterior distribution for ice softness is around 18.2 x 10(-25)s(-1)Pa(-3), with spatially varying basal sliding parameters inferred.
FRONTIERS IN EARTH SCIENCE
(2021)
Article
Computer Science, Hardware & Architecture
Ature Angbera, Huah Yong Chan
Summary: The popularity of using data science for decision-making has grown in recent years, but it has also brought a significant learning challenge known as concept drifting. This article introduces a new model called BOASWIN-XGBoost to handle concept drift and achieves impressive accuracy on seven streaming datasets.
JOURNAL OF SUPERCOMPUTING
(2023)
Article
Biochemical Research Methods
Jianfan Wu, Runmin Xu, Yihui Huang, Jiaying Zhan, Zhangren Tu, Xiaobo Qu, Di Guo
Summary: In this study, a sliding window based low rank Hankel matrix approach is proposed to speed up the reconstruction of spectra from non-uniform sampling (NUS) signals. Parallel computation is applied to further reduce the reconstruction time. Experimental results demonstrate that the proposed method achieves the fastest reconstruction speed among compared methods without sacrificing the quality of spectra.
JOURNAL OF MAGNETIC RESONANCE
(2022)
Article
Multidisciplinary Sciences
Natalia Rosetti, Daniela Krohling, Maria Isabel Remis
Summary: Quaternary climate oscillations and human modification of the environment have shaped the distribution and genetic structure of modern species. This study on the South American grasshopper, Dichroplus vittatus, revealed significant differentiation among populations and two major mitochondrial lineages. The results suggest that these populations derived from a single ancestral population and colonized the region after the Last Glacial Maximum.
SCIENTIFIC REPORTS
(2022)
Article
Forestry
Mundre N. Ramesha, Roman M. Link, Sharath S. Paligi, Dietrich Hertel, Alexander Roell, Dirk Hoelscher, Bernhard Schuldt
Summary: Short-rotation plantations of Melia dubia in India are affected by water supply and soil nutrient status, with phosphorus limitation potentially influencing growth. Sites with higher water and phosphorus availability show higher hydraulic efficiency in stem wood anatomical traits. Branch wood anatomical traits and leaf traits, however, seem to be less influenced by water and soil conditions.
FOREST ECOLOGY AND MANAGEMENT
(2022)
Article
Ecology
Torben Luebbe, Laurent J. Lamarque, Sylvain Delzon, Jose M. Torres Ruiz, Regis Burlett, Christoph Leuschner, Bernhard Schuldt
Summary: Contrary to common belief, coarse roots are not highly vulnerable to xylem embolism, indicating that hydraulic failure during soil drying might be restricted to fine roots.
FUNCTIONAL ECOLOGY
(2022)
Article
Plant Sciences
G. Weithmann, B. Schuldt, R. M. Link, D. Heil, S. Hoeber, H. John, H. Mueller-Haubold, L-M Schueller, K. Schumann, C. Leuschner
Summary: The study found that leaf traits of European beech exhibit considerable plasticity in response to climatic and edaphic aridity, with leaf size, specific leaf area, and Huber value adjusting based on water availability. Tree species may show different responses to long-term water availability and short-term water deficits.
Article
Plant Sciences
Matthias Arend, Roman Mathias Link, Cedric Zahnd, Guenter Hoch, Bernhard Schuldt, Ansgar Kahmen
Summary: This study investigated the impact of the 2018 European drought on beech trees and found that the hydraulic conductance of the trees was lost during the drought and did not recover in the following year. The decline in hydraulic function was associated with defoliation symptoms and a decrease in wood starch concentration. The findings suggest that leaf development after drought acclimates to mitigate disturbances in canopy hydraulic function.
Article
Plant Sciences
Marielle Gattmann, Scott A. M. McAdam, Benjamin Birami, Roman Link, Daniel Nadal-Sala, Bernhard Schuldt, Dan Yakir, Nadine K. Ruehr
Summary: This study investigated the stomatal, hydraulic, and morphological adjustments of Aleppo pine seedlings under elevated CO2 concentrations. The findings showed that increased CO2 levels significantly reduced leaf transpiration and led to anatomical adjustments, but did not affect drought sensitivity.
Article
Plant Sciences
Emilie Isasa, Roman Mathias Link, Steven Jansen, Fon Robinson Tezeh, Lucian Kaack, Juliano Sarmento Cabral, Bernhard Schuldt
Summary: The relationship between water potential and vessel diameter is significant, with wider vessels being more vulnerable. Species with thick pit membranes and narrow vessels are more resistant to embolism. This relationship is consistent among species, but not within species.
Article
Biology
Evangelia V. V. Avramidou, Ioannis Masaoutis, Theodora D. D. Pitsoli, Aliki Kapazoglou, Maria Pikraki, Emmanouil A. A. Trantas, Michael Nikolantonakis, Andreas G. G. Doulis
Summary: This study focused on the genetic diversity of seven different Vitis vinifera cultivars from Crete using SSR markers. The results identified four cultivars for white wine production and three cultivars for red wine production. The findings pave the way for the certification and registration of clones of important wine-producing cultivars in Crete.
Article
Forestry
Evangelia V. Avramidou, Evangelia Korakaki, Ermioni Malliarou, Stefanos Boutsios
Summary: Juniperus drupacea is an endangered tree species with limited distribution in Greece. This study investigates the genetic and epigenetic diversity of J. drupacea and its response to drought. Results show higher genetic diversity compared to epigenetic diversity, and no subpopulation differentiation was observed. There was no significant correlation between geographic, epigenetic, and genetic diversity, suggesting uncoupling of genetic and epigenetic diversity. The study highlights the importance of understanding the genetic and epigenetic diversity for the conservation plan of this species.
Article
Plant Sciences
S. S. Paligi, R. M. Link, E. Isasa, P. Bittencourt, J. S. Cabral, S. Jansen, R. S. Oliveira, L. Pereira, B. Schuldt
Summary: The increasing frequency of global change-type droughts has created a need for fast, accurate and widely applicable techniques for estimating xylem embolism resistance to improve forecasts of future forest changes. This study compared two rapid methods for constructing xylem vulnerability curves and evaluated their agreement and sensitivity to measurement duration. The results highlight the value of the Pneumatron as an easy and reliable tool to estimate embolism thresholds for a wide range of temperate angiosperms.
Article
Plant Sciences
Peter Petrik, Anja Petek-Petrik, Mohammad Mukarram, Bernhard Schuldt, Laurent J. Lamarque
Summary: The increasing evaporative demand due to climate change will significantly affect the balance of carbon assimilation and water losses of plants worldwide. The development of crop varieties with improved water-use efficiency (WUE) will be critical for adapting agricultural strategies under predicted future climates. This review aims to summarize the most important leaf morpho-physiological constraints of WUE in C-3 plants and identify gaps in knowledge.
Review
Environmental Sciences
Panagiotis P. Koulelis, Nikolaos Proutsos, Alexandra D. Solomou, Evangelia V. Avramidou, Ermioni Malliarou, Miltiadis Athanasiou, Gavriil Xanthopoulos, Panos V. Petrakis
Summary: This study reviews the impacts of climate change on Greek forests by analysing factors such as climate trends, forest management, biodiversity, genetics, insects, and wildfires, using data from the Scopus and Mendeley databases and official reports. By utilising our current understanding and allocating necessary efforts and resources, we actively address climate change consequences on forests. This study focuses on climate change and extreme weather outcomes on forests.
Article
Ecology
Miltiadis Athanasiou, Aristotelis Martinis, Evangelia Korakaki, Evangelia V. Avramidou
Summary: This paper describes the development of a fuel model for Cistus spp. in Greece and its application in predicting surface fire rate of spread. The fuel model, adjusted with published parameter values, is suitable for Cistus spp.-dominated areas with low vegetation height. However, the model underpredicted the actual rate of spread, and a linear regression equation was developed to improve the predictions. This equation can be used to adjust BehavePlus predictions for a more accurate reflection of fire behavior.
Article
Green & Sustainable Science & Technology
Alexandra D. Solomou, Evangelia Korakaki, Evangelia V. Avramidou, Stefanos Boutsios, Spyridon Oikonomidis, Evangelia Daskalakou
Summary: This study conducted a floristic study in the forest openings of Mt. Parnon in Greece to establish an ecological baseline and provide key elements for decision making regarding the conservation and sustainable use of forest biodiversity and ecosystem services.