Article
Zoology
Pratima Singh, Laishram Kosygin, Shantabala Devi Gurumayum, Shibananda Rath
Summary: A new species of sisorid catfish, Exostoma dhritiae, has been discovered in the Siang River in Arunachal Pradesh, northeastern India. This species can be distinguished from others by various morphological characteristics.
Article
Multidisciplinary Sciences
Sudhansu Sekhar Dash, Samiran Panday, Dinesh Singh Rawat, Vikas Kumar, Subhajit Lahiri, Bipin Kumar Sinha, Paramjit Singh
Summary: This study presents first-hand quantitative assessments of different vegetation layers in Namdapha National Park, Eastern Himalaya, India, showing rich diversity of trees, shrubs, and herbs with good regeneration status. The dominant tree species in the area is Dipterocarpus retusus Blume, indicating a healthy regeneration status.
Article
Geosciences, Multidisciplinary
Subhronil Mondal, Debahuti Mukherjee, Bashisha Iangrai, Arindam Roy, Subhajit Sinha
Summary: The Early Permian marine strata in the Siang and Subansiri districts of Arunachal Pradesh are known for brachiopod and molluscan fossils. A stratigraphic review and interpretation of these fossils reveal that they represent an oxic, soft substrate condition typical of shallow shelf environment, indicating strong faunal similarity with East and West Australia, Nepal, and North India, suggesting a Gondwanan affinity.
JOURNAL OF EARTH SYSTEM SCIENCE
(2021)
Article
Zoology
Bheem Dutt Joshi, Supriyo Dalui, Sujeet Kumar Singh, Tanoy Mukherjee, Kailash Chandra, Lalit Kumar Sharma, Mukesh Thakur
Summary: By studying the genetic evidence of red pandas, a potential boundary for species divergence between Himalayan and Chinese red pandas has been identified at the Siang river, emphasizing the need for conservation initiatives and multilateral cooperation for the survival of both species. Samples collected from different regions provided valuable insights into the genetic diversity and geographic distribution of red pandas, highlighting the importance of regional and transboundary conservation efforts.
Article
Geosciences, Multidisciplinary
Khayingshing Luirei, Girish Ch Kothyari, Rakesh K. Dumka, Surendra S. Bhakuni
Summary: The study area in Arunachal Himalaya is influenced by Main Boundary Thrust (MBT) and Himalayan Frontal Thrust (HFT), with complex geological structures and active tectonic movements. Various fault structures and deformation patterns were observed, highlighting the significance of accurate analysis of geological faults and structural deformations in the region for understanding seismic activities.
GEOLOGICAL JOURNAL
(2022)
Article
Multidisciplinary Sciences
Santu Patra, U. P. Sharma, Kamlesh Kumar, D. K. Sinha
Summary: This study reports anomalous uranium concentration in tourmaline-bearing leucogranite in the Tawang district of Arunachal Pradesh, North East India. Comparison with normal granite shows higher uranium concentrations in the leucogranite, indicating a potential new target area for uranium exploration.
Article
Plant Sciences
D. K. Pandey, P. K. Singh, P. Adhiguru, P. Kumar
Summary: Local cultivars have long-standing traditional significance with unique traits and historical importance.
INDIAN JOURNAL OF TRADITIONAL KNOWLEDGE
(2021)
Article
Geosciences, Multidisciplinary
Gautam Anand, Anup Rahangdale, Sandesh Satnarayan Mantri, Saransh Singh, Sreevalsa Kolathayar
Summary: This paper presents a GIS-based assessment of seismically induced landslide hazards in Arunachal Pradesh, India. By creating an earthquake catalog and a topographical slope map, the study calculates the impact of seismic activity on slopes based on earthquake parameters and slope angles. The danger level of landslides is assessed using a critical safety factor.
JOURNAL OF EARTH SYSTEM SCIENCE
(2022)
Article
Geosciences, Multidisciplinary
Upendra Baral, Lin Ding, Tapos Kumar Goswami, Mondip Sarma, M. Q. Jan, Chao Wang, Jovid Aminov, Muhammad Qasim, Devojit Bezbaruah
Summary: The study suggests that the Abor volcanic rocks in eastern Himalaya are of subalkaline tholeiitic affinity with continental intraplate characteristics. These volcanic rocks are likely sourced from the metasomatized mantle during the rifting event of the Indian subcontinent from Gondwana.
GEOLOGICAL JOURNAL
(2022)
Article
Plant Sciences
K. H. Y. A. N. J. E. E. T. GOGOI, P. R. A. N. A. B. MEGA, K. CHOWLU
Summary: A new species of Schoenorchis, a member of the Orchidaceae family, has been discovered in the tropical mixed evergreen forests of Mishmi Hills, Arunachal Pradesh, India. This species is closely related to Schoenorchis micrantha and S. brevirachis, but shows distinct differences in plant size and shape, leaf blade size, inflorescence, and flower characteristics. The article provides a detailed description, taxonomic notes, color photos, and information on the habitat and conservation status.
Article
Geochemistry & Geophysics
Roshmi Boruah, Jayanta Jivan Laskar
Summary: The study analyzed sandstones from the Neogene Siwalik successions of Arunachal Pradesh to evaluate source-area weathering, provenance, and tectonic setting using major, trace, and rare earth elements as proxies. The results suggest that the sediments were sourced from pre-Himalayan gneisses and granitoids in a passive margin tectonic setup. Geochemical characteristics indicate a strong influence of clay minerals and the presence of felsic igneous and/or reworked sedimentary/metasedimentary sources in an upper continental crustal setting.
Article
Geosciences, Multidisciplinary
Vikram Gupta, Neha Chauhan, Ivanna Penna, Reginald Hermanns, John Dehls, Aniruddha Sengupta, Rajinder K. Bhasin
Summary: Landslides, a common phenomenon in tectonically active mountains, pose a serious threat to human lives and properties. The spatial distribution of landslides is influenced by geological and geomorphological parameters, including tectonic activity and rainfall patterns. In this study, various geomorphic parameters and rainfall patterns were correlated with landslides in the Teesta river valley, Sikkim Himalaya. Results showed that landslides in the Higher Himalaya were mainly caused by tectonic activity, while those in the Lesser Himalaya were predominantly triggered by rainfall.
GEOLOGICAL JOURNAL
(2022)
Article
Environmental Sciences
Prem Ranjan, Pankaj Kumar Pandey, Vanita Pandey
Summary: The groundwater spring potential zone (GSPZ) was determined using a combination of remote sensing (RS) and geographic information system (GIS), analytic hierarchy process (AHP), and fuzzy-AHP based on multicriteria decision-making (MCDM). Ten factors related to groundwater springs were considered. The analysis output was categorized into low, moderate, and high potential zones, with the fuzzy-AHP model showing slightly better results compared to the AHP model. The resulting GSPZ map confirms the significance of thematic layers in groundwater spring occurrence and distribution.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Green & Sustainable Science & Technology
Chandra Kumar Dutta
Summary: This article is an environmental geographical study focusing on the relief aspects of a geographical unit. The study area is a part of the upper Jiadhal drainage basin and is characterized by a young river system with high sediment carrying capacity and frequent floods. The study reveals that the landscape is prone to erosion mainly due to physical and climatic factors, as well as human activities such as deforestation. The management of the upper catchment would be a prime concern for environmentalists in the future.
ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY
(2023)
Article
Plant Sciences
Soyala Kashung, Padma Raj Gajurel, Binay Singh, Rimi Barman, Tage Yakang
Summary: Aristolochia rethyae, a new species from Arunachal Pradesh, north-east India, is described. It is similar to A. griffithii and A. tanzawana in leaf texture and perianth limb, but differs in leaf shape, flower arrangement, and capsule features.
