Article
Zoology
Jianshuang Zhang, Hao Yu, Yucheng Lin
Summary: A new theridiosomatid genus, Simonia Yu & Lin, gen. nov., is described in this study. It includes three species and provides key diagnostic characteristics, descriptions, and distribution maps. The study also provides keys to differentiate Simonia from other theridiosomatid genera endemic to the Oriental Realm.
Article
Microbiology
Olga S. Samylina, Maria A. Sinetova, Elena Kupriyanova, Alexander Yu Starikov, Marina Sukhacheva, Marina Dziuba, Tatiana P. Tourova
Summary: This study analyzed the phylogeny, ecology, and biogeography of the "marine Geitlerinema" cluster representatives and identified two subclusters with distinct distributions. The ecological and geographical diversity of the Sodalinema genus was expanded, leading to the proposal of three new species. Additionally, a new genus and species, Baaleninema simplex gen. et sp. nov., were described within the PCC7105 Glade, contributing to the clarification of the confusion surrounding the "marine Geitlerinema" group.
FEMS MICROBIOLOGY ECOLOGY
(2021)
Article
Plant Sciences
Gina A. Tonicelli, Maria Emilia Croce, Pilar Diaz-Tapia, Suzanne Fredericq, David Wilson Freshwater, Maria Cecilia Gauna, Elisa R. Parodi, Heroen Verbruggen, Max H. Hommersand
Summary: This study used DNA sequences and morphological observations to confirm that Cystoclonium obtusangulum actually consists of two distinct species, leading to the proposal of a new genus name Meridionella. These two species are morphologically similar but have different distributions, one found in South America and the Falkland Islands, and the other occurring in Antarctic waters.
JOURNAL OF PHYCOLOGY
(2021)
Article
Plant Sciences
Fu-Jun Ma, Bai-Nian Sun, Song Liu, Guang-Hong Zhou, Chen-Chen Ling, Xiao-Pan Hu, Dan Han, Qiu-Jun Wang
Summary: Gigantopterids are a group of plants characterized by their megaphyllous leaves with distinctive reticulate venation. The systematic relationships between gigantopterids are largely unknown, and clarifying these confusions requires further detailed studies. Venation variations can provide clues for exploring the taxonomic relationships and diversity of gigantopterids, as well as enhancing our understanding of their biogeography.
REVIEW OF PALAEOBOTANY AND PALYNOLOGY
(2022)
Article
Plant Sciences
John Patrick Kociolek, Qingmin You, Pan Yu, Yanling Li, Yanlu Wang, Rex Lowe, Quanxi Wang
Summary: A new genus of monoraphid diatom, based on a species originally from Japan, was described in this study. The species was found in pristine lotic environments in multiple provinces in China, showing distinct differences from the genus Achnanthidium. This genus appears to be unique in being restricted to a single continent.
Article
Plant Sciences
Christian Boedeker, Michael J. Wynne, Giuseppe C. Zuccarello
Summary: The macroalgal flora in the high-latitude Southern Hemisphere, including the subantarctic region, has been relatively understudied. In this study, researchers examined specimens of filamentous green algae from various locations and identified two new clades within the Cladophorales order. The study highlights the importance of further exploration and new collections in novel locations to better understand the diversity of Cladophorales.
JOURNAL OF PHYCOLOGY
(2023)
Article
Plant Sciences
Nicolas Chomerat, Maria Saburova, Gwenael Bilien, Frederic Zentz, Mona Hoppenrath
Summary: A new thecate, photosynthetic, sand-dwelling marine dinoflagellate, Coutea sabulosa gen. & sp. nov., was discovered in various locations. It has oval cells, small size, and a conspicuous apical hook projection pointing to the right.
Article
Microbiology
Helge Abildhauge Thomsen, Seiko Hara, Jette Buch Ostergaard
Summary: This study utilizes a classic morphometric approach to generate an overview of warm water loricate choanoflagellate biodiversity, complementing previous research in temperate and polar regions and contributing to a more balanced approach to global diversity patterns. Analysis of warm water acanthoecid biodiversity identified 80 species, with 19 previously undescribed forms, and highlighted the Andaman Sea, Thailand, and West Australia as the most species-rich regions.
EUROPEAN JOURNAL OF PROTISTOLOGY
(2021)
Article
Entomology
Jacek Szwedo, Enrico Bonino, Lorenzo Tettamanzi, Adam Stroinski
Summary: A new genus and species of planthopper, Yobuenahuaboshka rectangialatus gen. et sp. nov., preserved in amber from Hispaniola (Dominican Republic) is described and illustrated. The classification and fossil records of the family Nogodinidae are briefly reviewed, and the morphological characters of the new taxon are compared with related recent and fossil Colpopterini. Hypotheses regarding the distributional pattern of the Colpopterini and geotectonic events in the Caribbean are presented.
Article
Paleontology
Yu Wu, Dongjing Fu, Jiaxin Ma, Weiliang Lin, Ao Sun, Xingliang Zhang
Summary: The study reassigns Anomalocaris saron to a new genus, Houcaris gen. nov., and supports its tamisiocaridid affinities. Houcaris saron represents the first tamisiocaridid species known from South China and the oldest in the fossil record. The tamisiocaridid group is restricted to the early Cambrian, possibly indicating a climatic control on their distribution.
Article
Zoology
Justin L. Lee, Jian-Huan Yang, Platon Yushchenko, Nikolay A. Poyarkov
Summary: Oligodon hamptoni is a rare species of Kukri Snake with only two specimens known previously, but a third record has been discovered recently in Mt. Gaoligongshan, Yunnan Province, China. This represents the first observation of O. hamptoni in China in almost 100 years.
Article
Zoology
L. Lee Grismer, Peter Geissler, Thy Neang, Timo Hartmann, Philipp Wagner, Nikolay A. Poyarkov
Summary: The study identifies a new species, Cyrtodactylus kulenensis sp. nov., in the intermedius group with unique morphological characteristics. Endemic to the Phnom Kulen National Park in Cambodia, this new species is genetically distinct from other species in the group. Various analyses highlight the importance of continued field work in understudied landscapes to uncover the high levels of endemic diversity in the region.
Article
Zoology
Anh The Nguyen, Tang Van Duong, L. Lee Grismer, Nikolay A. Poyarkov
Summary: An integrative analysis identified a new species, Cyrtodactylus raglai sp. nov., in Vietnam which is a narrow-range endemic found in a granite cave microhabitat. This species faces threats from the construction of a hydropower station that could negatively impact the surrounding ecosystem.
VERTEBRATE ZOOLOGY
(2021)
Review
Engineering, Petroleum
K. M. Gerke, D. Korost, M. Karsanina, S. R. Korost, R. V. Vasiliev, E. Lavrukhin, D. R. Gafurova
Summary: This review examines the international experience of digital core technology and addresses the question of why it has not been effectively utilized in the oil and gas industry despite extensive scientific research. The analysis presented clarifies the skeptical attitude towards the technology and errors in R&D work within oil and gas companies, providing a brief assessment of the technology's future development.
Article
Multidisciplinary Sciences
Nikolay A. Poyarkov, Tan Van Nguyen, Parinya Pawangkhanant, Platon Yushchenko, Peter Brakels, Linh Hoang Nguyen, Hung Ngoc Nguyen, Chatmongkon Suwannapoom, Nikolai Orlov, Gernot Vogel
Summary: Slug-eating snakes of the subfamily Pareinae, specialized in feeding on terrestrial mollusks, encompass three genera with 34 species in the Oriental biogeographic region. Despite recent progress in understanding their diversity, taxonomically, Pareinae remain challenging. The updated phylogeny includes comprehensive taxon sampling of 30 recognized species and newly discovered candidates, revealing hidden diversity and a complex diversification pattern.
Article
Multidisciplinary Sciences
Zeeshan A. Mirza, Andrey M. Bragin, Harshal Bhosale, Gaurang G. Gowande, Harshil Patel, Nikolay A. Poyarkov
Summary: The Himalayas have significant biogeographic importance in the origin and diversification of various taxa. A recent study discovered a unique lineage of skinks in the eastern Himalayas, providing insights into the biogeographic significance of the region. The integrated taxonomic approach and molecular phylogeny presented in the study contribute to the understanding of this unique lineage.
Article
Geochemistry & Geophysics
I. Pshenitsyn, A. A. Ariskin, G. S. Nikolaev, D. Korost, V. O. Yapaskurt, E. Kislov, S. N. Sobolev, I. Kubrakova, O. A. Tyutyunnik
Summary: This paper presents the petrological and geochemical characteristics of sulfide-bearing rocks in the Yoko-Dovyren massif in Russia. The study found different types of sulfide-bearing rocks with varying connectivity and composition of sulfides. The results also provide insights into the chemostratigraphy and the relationship between precious metals and sulfides in these rocks.
GEOCHEMISTRY INTERNATIONAL
(2022)
Article
Crystallography
Konstantin N. Gorbachenya, Anatol S. Yasukevich, Viktor E. Kisel, Kirill Lopukhin, Vladimir V. Balashov, Alexander Fedin, Miron N. Gerke, Elena A. Volkova, Vasiliy O. Yapaskurt, Nikolay N. Kuzmin, Dmitry A. Ksenofontov, Dmitry Korost, Nikolay Kuleshov
Summary: This paper investigates the synthesis, spectral-luminescent properties, and energy level calculations of Er3+:Y2O3 optical ceramics. It also studies the composition and structure of the ceramics using various techniques.
Article
Zoology
Platon Yushchenko, Justin L. Lee, Hieu Minh Pham, Peter Geissler, Elena Syromyatnikova, Nikolay A. Poyarkov
Summary: We investigated the taxonomic status of two morphologically similar species, Oligodon arenarius and Oligodon macrurus, endemic to the southern coast of Vietnam. Phylogenetic analyses and genetic distances suggested that O. arenarius is paraphyletic and should be synonymized with O. macrurus. Despite little difference in color pattern, hemipenial morphology, and osteological features, there were significant differences in tail length and scale counts between the two species. We formally redescribe O. macrurus and propose its Vulnerable status based on the ongoing threats to its coastal and forest habitats.
VERTEBRATE ZOOLOGY
(2023)
Article
Zoology
Platon V. Yushchenko, Justin L. Lee, Thy Neang, Hun Seiha, Nguyen Van Tan, Gernot Vogel, Nikolay A. Poyarkov Jr
Summary: This paper re-assessed the taxonomic status of the ashy kukri snake Oligodon cinereus populations found in southern Indochina, including the recently described Cat Tien kukri snake. Phylogenetic analyses revealed that the Cat Tien kukri snake is embedded in a clade with samples of another subspecies of O. cinereus, and the genetic divergence between these two clades is very low. The morphological characters used to distinguish the two taxa overlap and the supposed differences in hemipenial morphology are due to outdated terminologies. Both the Cat Tien kukri snake and O. cinereus pallidocinctus are considered junior synonyms of O. cinereus.
VERTEBRATE ZOOLOGY
(2023)
Article
Zoology
Suranjan Karunarathna, Kanishka D. B. Ukuwela, Anslem De Silva, Aaron M. Bauer, Majintha Madawala, Nikolay A. Poyarkov, Madhava Botejue, Dinesh Gabadage, L. Lee Grismer, Vladislav A. Gorin
Summary: Sri Lanka is a hotspot for Cnemaspis day geckos, harboring 40 known species with complete endemism. This paper examines the phylogenetic relationships of Cnemaspis species from the alwisi group of the podihuna clade and describes two newly discovered species from Sri Lanka. These species inhabit granite caves within forested areas in isolated mountains within the dry bioclimatic zone and have specialized microhabitats. Both species are medium-sized, with distinct morphological characteristics, and are classified as Critically Endangered under the IUCN Red List criteria. The main threats to these species are habitat loss due to agricultural expansion, encroachment on forests, and forest fires. Immediate conservation action is recommended to protect these forest areas and their buffer zones.
VERTEBRATE ZOOLOGY
(2023)
Article
Multidisciplinary Sciences
Christophe Dufresnes, Nikolay Poyarkov, Daniel Jablonski
Summary: Delimiting and naming biodiversity is crucial for wildlife conservation and research. We propose a standardized workflow for species delimitation based on genomic data, which encourages formal taxonomic naming and description to promote biodiversity awareness.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Zoology
Sabira S. Idiiatullina, Parinya Pawangkhanant, Tanapong Tawan, Thanawut Worranuch, Bunyarit Dechochai, Chatmongkon Suwannapoom, Tan Van Nguyen, Lawan Chanhome, Nikolay A. Poyarkov
Summary: This article describes a new species of pitvipers, Trimeresurus ciliaris sp. nov., discovered near the Thailand-Malaysian border. The new species is distinguished from its congeners by its unique morphological characters and forms a distinct clade on the phylogenetic tree. The study also makes suggestions for the taxonomy of the T. kanburiensis species complex.
VERTEBRATE ZOOLOGY
(2023)
Article
Agriculture, Dairy & Animal Science
Roman A. Nazarov, Timur V. Abduraupov, Evgeniya Yu. Shepelya, Mariya A. Gritsina, Daniel A. Melnikov, Matthew D. Buehler, Jack D. Lapin, Nikolay A. Poyarkov, Jesse L. Grismer
Summary: This study was conducted in the Fergana Valley, one of the most densely populated and geographically isolated regions in Uzbekistan. The main goal was to obtain up-to-date data on the distribution and abundance of endemic reptile species in the remaining habitats. The study resulted in the discovery of two new species, highlighting the urgent need for habitat protection.
Article
Physics, Condensed Matter
E. E. Damaskinskaya, I. A. Panteleev, D. Korost, K. A. Damaskinskii
Summary: Experimental study on defect accumulation in natural heterogeneous materials during uniaxial compression was conducted using nondestructive testing methods. The linear relationship between defect volume and energy characteristics of acoustic emission signals was found, which is used to estimate the average defect size. The average linear defect size was determined to be no larger than 100 micrometers, independent of defect shape assumptions.
PHYSICS OF THE SOLID STATE
(2021)