ARPHA OAI-PMH Endpoint
Not a member yet
49206 research outputs found
Sort by
Triploid female Helophorus brevipalpis Bedel, 1881 in Provence, France, with additional data on C-banding in both triploid and diploid material, and discussion of chromosomal variation in H. brevipalpis
Triploid female Helophorus brevipalpis Bedel, 1881 are recorded from two localities in Provence, France. Their karyotypes are analysed using both chromosome morphology and C-banding. Their karyotypes appear to be identical with those of Spanish material recorded by Angus (1992) but show minor differences from Italian triploid material described by Angus, Jia (2020). Data on C-banding in English H. brevipalpis are given and chromosomal variation in H. brevipalpis is discussed
Typification of the name Allium cirrhosum Vand. (Amaryllidaceae)
The name Allium cirrhosum is here lectotypified based on an unpublished illustration preserved at University of Pavia Library. The lectotype does not include a complete set of significant distinguishing features and cannot be critically identified for purposes of the precise application of the name. Hence, an epitype preserved at PI was selected to serve as an interpretative type. Based on the typification here proposed, the name A. cirrhosum has priority at species rank over A. coloratum (1771 vs. 1825)
First record of Cheilopogon xenopterus (Refinesque, 1810) (Beloniformes, Exocoetidae), Whitetip Flyingfish, on the Chilean coast
We report the incidental capture of an adult flying fish, Cheilopogon xenopterus, off the coast of Arica, northern Chile. This marks the first documented occurrence of the species in Chilean waters and a notable southward range extension. Its presence, outside El Niño–Southern Oscillation (ENSO) periods, may indicate shifts in average sea surface temperatures. This finding highlights the importance of ongoing ichthyofaunal monitoring in northern Chile to detect early signs of climate and oceanographic changes affecting species distribution
High temperatures and drought affect the germination of Populus luziarum and P. primaveralepensis, endangered species from the Neotropical region of Mexico
The higher temperatures and lower rainfall generated by global warming can have negative repercussions on the physiological responses of plants. This study aims to understand how the higher temperatures and declining precipitation will affect the germination of Populus luziarum and P. primaveralepensis, two endangered endemic species from western Mexico. The germination of these species was evaluated through the combined effect of three temperatures (24, 28, and 32 °C) and five water potentials (0, –0.07, –0.15, –0.3, and –0.6 MPa). The evaluated response variables utilized were the minimum time that seeds need to begin germination, the mean germination rate, and the final percentage of germination. Significant differences were found in the germination of both species due to the factors and their interaction. The highest germination percentages were registered with the combination of 24 °C and 0 MPa for both species (90% and 94%, respectively). The lowest percentage for P. luziarum was recorded at –0.6 MPa for any temperature (26–32%), while the lowest germination (23%) was found for P. primaveralepensis at –0.6 MPa and 32 °C. In addition, germinability was slowest in both species because of the highest temperatures and lowest water potential and their interactions. It is concluded that higher temperatures and drought stress will negatively affect the germination and recovery of populations of these two species
Morphology of a novel ciliate, Oxytricha chongqingica sp. nov. (Ciliophora, Hypotrichia)
A novel hypotrichous ciliate, Oxytricha chongqingica sp. nov., was identified in Chongqing, southwestern China. This species is distinguishable from congeners by various qualitative and quantitative characteristics, such as body size and shape, pattern of endoral and paroral, number of macronuclear nodules, presence and arrangement of cortical granules, as well as ventral and dorsal ciliature. Phylogenetic analyses based on small subunit ribosomal DNA (SSU rDNA) sequences indicate that Oxytricha chongqingica sp. nov. forms a cluster with O. nauplia, Allotrichides antarcticus, O. paragranulifera, O. quadricirrata, Paroxytricha longigranulosa, and P. ottowi, albeit with weak or moderate nodal support (82 ML and 0.87 BI)
Trade-offs and synergies in river-coastal restoration for the Ebro case (Spanish Mediterranean)
The paper tackles some of the major challenges associated with coastal risk reduction, based on restored river-delta-coast continuums. The presented approach builds on the Ebro River-Delta system, located in the Spanish Mediterranean coast, where available data and results from hands-on restoration actions provide quantitative evidence on the synergies and trade-offs when implementing restoration. The work addresses the evolution of climatic- and human-induced risks driven by recent deltaic evolution, starting in the 1960s, when socioeconomic development increased and river regulation by large dams in the lower river course started. Such development has driven up freshwater demand, consequently diminishing both liquid and solid discharges in the river system, which has affected the natural deltaic evolution, compounded by sea-level-rise and changes in storminess due to global warming. Evolving erosion and flooding risks (problem symptoms) consider the decrease in sediment input to the delta and the increase in mean sea level (problem origin). To address the origin of the problem, we address sediment availability and transport in the lower river coast and reservoirs, followed by an assessment of sediment transport and deficit at the coastal fringe. The proposed solutions consider reservoir by-pass techniques, sediment mobilisation and downstream transport, as well as downstream transport capacity under present and future climates. Regarding the problem symptoms, we analyse the alternatives to enhance coastal resilience by means of restored coastal roughness resulting from embryonic dunes, lagoons and ridge and runnel topography. The analysis also considers coastal sediment recycling, based on a combination of wind and wave induced transports that provide a natural conveyor belt in dynamic equilibrium. Finally, the paper systematises the main synergies and trade-offs that must be considered in any coastal restoration plan, targeting a low carbon reduction of coastal risks while maintaining the important socio-economic assets in the river-delta-coast system. The conclusion section briefly explores the extrapolation of the proposed approach to other vulnerable coastal regions in Europe
Editorial
Dear Readers,It gives me great pleasure to announce the seventh regular issue of 2025. In this issue, 4 papers by 12 authors from 6 countries – Colombia, India, Lithuania, Romania, Spain, Turkiye – cover various topical and novel aspects of computer science. As always, I would like to thank all the authors for their sound research and the editorial board and guest reviewers for their extremely valuable review effort and suggestions for improvement. I also want to thank the readers for their interest in our articles, which is reflected in the increasing number of accesses and PDF downloads. These contributions, together with the generous financial support of the KOALA initiative, sustain the quality of our journal. n a continuous effort to further strengthen our journal, I would like to expand the editorial board: If you are a tenured associate professor or above with a strong publication record, you are welcome to apply to join our editorial board. We are also interested in high-quality proposals for special issues on new topics and trends. In the seventh regular issue, I am very pleased to introduce the following 5 accepted articles: In a collaboration between researchers from Colombia and Spain, Juan-Sebastián González-Sanabria, Cristian Pinto, Jhon Zuñiga, Hugo Ordoñez, and Xiomara Blanco focus on a XGBoost Classifier-Based Model to predict the nature of gender-based violence based on specific socio-demographic and situational features.Muthukumaran N and Vignesh A from India present enhancements of chatbot responses by addressing challenges such as context retention over extended interactions, syntactic ambiguities and bias propagation from training data. They propose an advanced transformer model, the Improved T5 (IT5), to solve these issues.In a collaboration between researchers from Romania and Lithuania, Eugen Valentin Butilă, Mihai Burlacu, Răzvan Gabriel Boboc, and Robertas Damaševičius discuss the findings of a bibliometric analysis of reviews and research articles on the use of VR applications in anthropology between 2010 and 2023.Last but not least, Davut Çulha from Turkiye addresses scalability aspects through a binary tree blockchain of decomposed transactions, which can reduce the computational overhead required to calculate account balances and make the system more efficient.Enjoy Reading!Best regards,Christian Gütl, Managing Editor-in-Chie
Museomics, the Extended Specimen and Collectomics – how to frame and name the diversity of information linked to specimens in natural history collections
In light of recent technological advances – in fields such as computer science, imaging technologies, and molecular analysis methods – the possibilities for studying biological museum specimens and linking information across disciplines have expanded exponentially in recent years. In particular, scientific disciplines operating on the scale of so-called -omics technologies, originally developed in molecular biology, have found their way into the museum realm. This development has led to a proliferation of neologisms aimed at describing comprehensive approaches for analyzing museum specimens and collections with the help of large-scale datasets. Among these terms, “museomics” has become a frequently used, albeit rather loosely defined, synonym for a wide range of large-scale, integrative scientific approaches that are centered on, or incorporate, museum specimens. In this article, we aim to provide an overview of the most commonly used key terms, examine their conceptual interrelations, and present a literature-based survey of their usage. We advocate for using three terms at different hierarchical levels: (1) museomics for analytical approaches using biomolecules on museum specimen; (2) the extended specimen concept linking voucher specimens with diverse physical, digital, and contextual information; and (3) collectomics linking the data of the extended specimen with quantitative datasets from other domains of research. A key prerequisite for this linkage is the unambiguous assignment of data to the corresponding specimen using a Persistent Identifier (PID). Finally, we conclude the paper by reflecting on the current approaches and initiatives adopted at the Natural History Museum Vienna, emphasizing the importance of adopting a museum-wide strategy for developing extended specimen datasets using standardized data formats in accordance with Open Science principles
Post-2000 milestones in freshwater fish taxonomy: a comprehensive review of newly described species in Türkiye
The 2000s are the revolutionary decade for the taxonomy of freshwater fishes of Türkiye in terms of the most significant ever rate of increase in species descriptions. Among the approximately 390 freshwater fish species reported from Türkiye, a remarkable 136 have been described since 2000, reflecting an accelerated pace of taxonomic and morphological activity. This surge has been prompted by the influx of new researchers and the widespread adoption of molecular sequencing techniques, currently at the center of taxonomic work since the 2010s. This synthesis gives a complete view of these 136 new species named, examining predominant parameters such as genera, descriptors, contributing countries, and the chronological order of discoveries. The results are presented through visual data, which help illustrate the progress in taxonomic research and the contributions of international collaboration. The study also highlights the rapid development of freshwater biodiversity research in Türkiye and emphasizes the value of using integrated methods and global partnerships to better understand less-studied aquatic species. The bibliometric analysis indicates that a substantial proportion of new species descriptions is ascribed to a limited cohort of prolific researchers, with the majority of contributions made by a core group of the top 10 authors. These discoveries not only augment our comprehension of Türkiye’s freshwater fish fauna but also illuminate broader trends influencing taxonomic study in the 21st century
A long-term monitoring dataset of non-breeding waterbirds at Lake Miedwie, Poland (2002–2025)
Lake Miedwie, located in north-western Poland, is one of the most important wetland areas for non-breeding waterbirds in the Central European region. Recognised as both an Important Bird Area (IBA) and part of the Natura 2000 network, the site supports large numbers of migratory and overwintering geese, ducks and other waterbirds. Since 2002, standardised surveys have been conducted during the non-breeding season to monitor population sizes and species composition. The site’s location on major flyways and its habitat diversity make it valuable for long-term ornithological monitoring.This dataset presents waterbird count data collected during the non-breeding season from 2002/2003 to 2024/2025, covering 23 seasons across 24 calendar years. The dataset includes 952 records of seasonal abundance for 14 waterbird species. The average total abundance was 7,933 (± 1,314 SE) individuals per season (mean of November, January and March), with a maximum of 36,095 in November 2002 and a minimum of 226 in March 2017. Trend analysis using the rtrim package in R indicated a moderate overall decline (λ = 0.976, 95% CI: [0.975 – 0.977]). Species-specific trends varied, with some taxa, such as Greylag Goose (Anser anser Linnaeus, 1758), increasing, while others, including Greater White-fronted Goose (Anser albifrons Scopoli, 1769), Eurasian Teal (Anas crecca Linnaeus, 1758) and Eurasian Coot (Fulica atra Linnaeus, 1758), declined. The dataset contributes valuable baseline data for wetland bird conservation, ecological assessment and future research in Central Europe. Importantly, such long-term monitoring also provides a robust reference point for assessing changes in climate and biodiversity over time