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63 results for “Northeast Asia”
Figure 24 in Molecular and morphological confirmation of Isometrus maculatus (DeGeer 1778) (Scorpiones Buthidae) from Northeast India and East Asia
Figure 24. Maximum Likelihood phylogenetic tree (ML) for Isometrus. Values along the nodes are ultrafast bootstraps for 1000 iterations. The lineage in red indicates Isometrus maculatus.
Figure 25 in Molecular and morphological confirmation of Isometrus maculatus (DeGeer 1778) (Scorpiones Buthidae) from Northeast India and East Asia
Figure 25. Bayesian phylogenetic tree for Isometrus. Values along the nodes are Bayesian posterior probabilities for Bayesian Inference. The lineage in red indicates Isometrus maculatus DeGeer, 1778.
Figures 18–21 in Molecular and morphological confirmation of Isometrus maculatus (DeGeer 1778) (Scorpiones Buthidae) from Northeast India and East Asia
Figures 18–21. Isometrus maculatus, male, IES-522, from Teliamura, Tripura, India, metasoma in dorsal (18), lateral (19) and ventral (20), movable finger under UV light (21), Scale bars = 5 mm (18–20); 2 mm (21).
Figures 22–23. A in Molecular and morphological confirmation of Isometrus maculatus (DeGeer 1778) (Scorpiones Buthidae) from Northeast India and East Asia
Figures 22–23. A tree on which individuals of Isometrus maculatus were observed in Teliamura, Tripura, India.
Figures 8–11 in Molecular and morphological confirmation of Isometrus maculatus (DeGeer 1778) (Scorpiones Buthidae) from Northeast India and East Asia
Figures 8–11. Isometrus maculatus, male, IES-522, from Teliamura, Tripura, India, dorsal (8) and ventral (9) views under UV light, carapace under white light (10), carapace under UV light (11). Scale bar = 5 mm (8, 9).
Figures 12–17 in Molecular and morphological confirmation of Isometrus maculatus (DeGeer 1778) (Scorpiones Buthidae) from Northeast India and East Asia
Figures 12–17. Isometrus maculatus, male, IES-522, from Teliamura, Tripura, India, Pedipalp chela dorsal (12) and ventral (13) views, patella dorsal (14) and external (15) views, femur dorsal (16) and internal (17) views. Trichobothrial pattern indicated by yellow circles. Scale bars = 1 mm.
Figures 3–7 in Molecular and morphological confirmation of Isometrus maculatus (DeGeer 1778) (Scorpiones Buthidae) from Northeast India and East Asia
Figures 3–7. Isometrus maculatus, male, IES-522, from Teliamura, Tripura, India, dorsal (3) and ventral (4) views, sternopectinal area (5), telson lateral (6) and ventral (7) views. Scale bars = 5 mm (3– 4); 2 mm (5–7).
Figures 1–2. Figure 1 in Molecular and morphological confirmation of Isometrus maculatus (DeGeer 1778) (Scorpiones Buthidae) from Northeast India and East Asia
Figures 1–2. Figure 1. Isometrus maculatus, male, IES-522, from Teliamura, Tripura, India in vivo habitus. Figure 2. Isometrus maculatus, female, IES-525, from Teliamura, Tripura, India in vivo habitus with newborns. Photos taken by Arnab Deb.
Figure 26 in Molecular and morphological confirmation of Isometrus maculatus (DeGeer 1778) (Scorpiones Buthidae) from Northeast India and East Asia
Figure 26. Distribution of Isometrus specimens analysed here (see Figs 24–25).
Tree canopy accession strategy changes along the latitudinal gradient of temperate Northeast Asia
<p>Aim: Understanding how natural forest disturbances control tree regeneration is key to predict the consequences of globally accelerating forest diebacks on carbon stocks and forest biodiversity. Tropical cyclones (TCs) are important drivers of forest dynamics in Eastern Asia and it is predicted that their importance will increase. However, little is known about TC impact on forest regeneration.</p> <p>Location: Latitudinal gradient from south Korea (33°N) to the Russian Far East (45°N).</p> <p>Time period: Last 300 years.</p> <p>Major taxa studied: <i>Quercus mongolica</i>, <i>Abies nephrolepis</i> and <i>Pinus koraiensis</i>.</p> <p>Methods: We explore the effects of TC activity on canopy accession strategies derived from long-term tree radial growth patterns along a 1500-km latitudinal gradient of decreasing TC activity. We analyzed canopy accession strategies for more than 800 trees of three widely distributed tree species by dividing them into gap trees (GTs) that established immediately after gap formation, and released trees (RTs) that accessed the upper canopy after a period of competitive suppression.</p> <p>Results: We found a substantial decrease in GTs and increase in RTs proportionally along the gradient of decreasing TC activity. <i>P. koraiensis</i> and <i>A. nephrolepis</i> exhibited high variability in the proportions of the individual canopy accession strategies along the latitudinal gradient, while it was more stable for <i>Q. mongolica</i>. We identified the gradient of TC activity as the main driver influencing canopy dynamics and thus changes in life history traits for <i>P. koraiensis</i> and <i>Q. mongolica</i>, while maximal growth rate was the main driver for <i>A. nephrolepis</i>.</p> <p>Main conclusions: Flexibility in growth strategies enabled the studied species to cover extensive areas and indicates that they will be able to cope with shifts in disturbance regimes induced by the poleward migration of TCs and increasing TC intensity. Our results highlight the canopy accession strategy as an ecological indicator of past disturbance activity.</p>
Circular genetic structure of the Abies nephrolepis species complex shaped by the circular landform of Northeast Asia
<p>Aim:</p> <p>Pinaceae have been noted for their tendency towards reticulation as a result of interspecific hybridization. Here, we demonstrated the phylogeographic dynamics of the native Northeast Asian sub-alpine conifer, <em>Abies nephrolepis</em> species complex (ANSC), evolving in circular overlaps along the Northeast Asian landform, which functions as a corridor with the sea, thus acting as a geographic barrier.</p> <p>Location: Northeast Asia: the Korean Peninsula, Japanese Archipelago, Russian Far East, and northeastern China</p> <p>Taxon:<em> Abies nephrolepis</em> species complex (Family Pinaceae, Genus <em>Abies</em>, Section <em>Balsamea</em>, <em>Abies nephrolepis, A. koreana, A. veitchii</em>, and<em> A. sachalinensis</em>)</p> <p>Methods: A total of 728 individuals from 38 ANSC populations were analysed using multiplexed inter-simple sequence repeat genotyping by sequencing to capture variations in bi-parental nuclear genomes. Eight mitochondrial regions and eight chloroplast regions of each individual were sequenced using the MiSeq platform and Sanger sequencing. Species distribution models were generated.</p> <p>Results: Bayesian clustering with 507 nuclear single nucleotide polymorphisms and the discrepancy between cytoplasmic and nuclear genome lineages implied contemporary and ancient connections between neighbouring species in the form of circular overlap. This genetic connectivity was supported by principal component analysis. Strong correlations between genetic distance and geographic distance were observed, suggesting that gene flow occurs through a continuous chain around the sea. We also found that gene flow direction and intensity changed over time, with support from paleodistribution modelling.</p> <p>Conclusion: Past hybridization events were captured in cytoplasmic genomes, generating heterogeneity across maternal ancestries. This intensive phylogeographic study demonstrates speciation with incomplete reproductive isolation (continuous gene flow) among neighbouring species with an alteration of the direction and intensity of gene flow due to climate change. The divergence of ANSC due to repeated isolation and reconnection caused by heterogenous physiological environments and climate fluctuation provides a model to solve evolutionary scenarios for reticulate evolution in Pinaceae and other plants.</p>
Ancient volcanos as species pumps: A case study of freshwater amphipods in Northeast Asia
<p>Volcano-tectonic processes have been viewed as primary divers in the formation of present-day diversity. Volcanos associated with mountain uplifts drives allopatric speciation through vicariance and may impact the surrounding areas like species pump or species attractor. However, the application of these hypotheses to aquatic fauna has rarely been tested explicitly. We conducted this research in the Changbai Mountains (Mts), which are one of the most typical, active volcanic ranges in Northeast (NE) Asia with a long and turbulent geological history. The <i>Gammarus nekkensis</i> species complex of amphipod crustaceans, widely distributed throughout NE Asia with poor dispersal abilities and a long evolutionary history, is a suitable model for testing these hypotheses. Phylogenetic and ancestral range reconstructions demonstrated that the studied amphipod originated from the Changbai Mts approximately 27 Ma and diverged into eastern (Clade I) and western (Clade II) clades, which corresponds well with the initial volcanic eruption of the Changbai Mts in the Late Oligocene. The subsequent diversifications of subclades CI-3, CII-1a and CII-2a were likely driven by second and third eruptions of the Changbai Mts during the Miocene. In particular, the Changbai lineages had spread to the Russian Far East multiple times since the Early Miocene, and widely colonized the region during the Pleistocene. Our discoveries suggest that the ancient volcanos of the Changbai Mts act as species pumps in NE Asia, resulted in burst of diversification around the Changbai Mts and subsequent dispersals into adjacent regions.</p>
Molecular and 13C isotopic composition of diacids and related compounds in wintertime PM2.5 at three sites over Northeast Asia – Data set
<p>To investigate the spatial changes in atmospheric organic aerosols (OA) loading and composition over the northeast Asian region, fine aerosols (PM<sub>2.5</sub>) were collected at three sites: Tianjin (TJ), North China and in Padori (PD) and Daejeon (DJ), South Korea, during winter 2019. We studied the molecular distributions and compound-specific carbon isotopic composition (δ<sup>13</sup>C) of dicarboxylic acids (diacids), oxocarboxylic acids (oxoacids) and α-dicarbonyls as well as the carbonaceous and inorganic ionic components in two sets of selected samples, representing a clean and a polluted period, during the campaign. Based on the molecular distributions and δ<sup>13</sup>C of diacids and related compounds and mass ratios and linear relations of selected species, we discuss the origins of OA and the influence of long-range transported air masses on their loading and composition over Northeast Asia.</p>
GSK1550188 A 52 Week Study of Belimumab Versus Placebo in the Treatment of Subjects With Systemic Lupus Erythematosus (SLE) Located in Northeast Asia
ClinicalTrials.gov study NCT01345253. IPD Sharing: Not stated. Countries: 3. Publications: 10.
BEL114333, a Continuation Study of BEL113750 in Subjects With Systemic Lupus Erythematosus (SLE) in Northeast Asia, and in Japan Subjects Completing the Open-label Extension of HGS1006-C1115
ClinicalTrials.gov study NCT01597622. IPD Sharing: YES. Countries: 2. Publications: 1.
Ancient volcanos as species pumps: A case study of freshwater amphipods in Northeast Asia
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Circular genetic structure of the Abies nephrolepis species complex shaped by the circular landform of Northeast Asia
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Tree canopy accession strategy changes along the latitudinal gradient of temperate Northeast Asia
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Blow to the Northeast? Intraspecific differentiation of Populus davidiana suggests a northeastward skew of a phylogeographic break boundary in East Asia
<p><b><span>Aim: </span></b>There is increasing interest in the role that biological traits, and historical and biogeographic processes, play in the formation of phylogeographic patterns. An arid belt that once existed in northern China might have affected many plants, but this has yet to be untested in an arid-tolerant, wind-dispersed species. Here we tested how intrinsic and extrinsic factors have affected the phylogeography of <i><span>Populus davidiana</span></i>.</p> <p><b><span>Location: </span></b>East Asia</p> <p><b><span>Methods: </span></b>Genetic variation was surveyed across 40 populations (555 individuals) covering the Chinese range of <i><span>P. davidiana</span></i>, using 16 nuclear microsatellite loci (nSSRs) and four chloroplast fragments (cpDNA). Demographic and migration hypotheses were tested using coalescent-based approaches, and the present and past potential distributions were predicted using species distribution modelling.</p> <p><span><span><b><span>Results: </span></b>Molecular data divides <i><span>P. davidiana </span></i>into two lineages, northeastern China (NECR), and central and northern China (CNCR); however, the dividing line is around 118ºE for nSSRs, but 122ºE for cpDNA. The range and habitat of the two lineages barely overlap at present, and their ecological separation may have initiated around the Pliocene-Quaternary boundary, when major infraspecific cpDNA clades diverged. NECR and CNCR experienced postglacial northeastward and northward range shifts, respectively. Bi-directional historical gene flow was detected between NECR and CNCR for both bi-parentally inherited nSSRs and maternally inherited cpDNA. Demographic inferences suggest a severe bottleneck for CNCR and especially NECR, around the latest Pleistocene.</span></span></p> <p><b><span>Main conclusions: </span></b>The phylogeographic break within <i><span>P. davidiana</span></i> reflects the impacts of biogeographic history, climate and biological traits. Its plumed, wind-dispersed seeds might be especially significant, because prevailing southwestern spring winds may have moved the NECR-CNCR boundary further east than similar phylogenetic breaks in other species, and also moved the cpDNA boundary relative to that for nuclear markers. Biological traits, therefore, should also be considered when examining the genetic and ecological differentiation between closely related taxa.</p>
NESEA-Rice10: high-resolution annual paddy rice maps for Northeast and Southeast Asia from 2017 to 2019
<p>This dataset provides annual paddy rice maps of Northeast and Southeast Asia from 2017 to 2019.</p> <p>*** The data file is in “.tif" format</p> <p>*** Spatial extent: Northeast and Southeast Asia</p> <p>*** Temporal Resolution: Yearly</p> <p>*** Pixel size: 10 m</p> <p>*** Projection information: EPSG: 4326</p> <p>*** CropType: Paddy rice.</p> <p>*** Year: Values from 2017 to 2019</p> <p>*** The file name consists of year (Y), latitude range (N/S), and longitude range (E). For example, the file name '2019Y_40_45N_140_145E' means the map of paddy rice in the range of 40-50 degrees North and 140-145 degrees East for 2019.</p>
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Allen Brain Atlas
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
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