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167 results for “Tibet plateau”
Data from: ‘In and out of’ the Qinghai-Tibet Plateau and the Himalayas: centers of origin and diversification compared across five clades of Eurasian montane and alpine passerine birds
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Nitrous oxide dataset for East Qinghai-Tibet Plateau waterways
This dataset is a collation of 3-year direct measurement values of N2O concentrations and fluxes for East Qinghai-Tibet Plateau (EQTP) streams and rivers, along with information on location, hydrological, physical, and chemical conditions of the study sites. Given the rarity and high value of this EQTP data set, it will be very valuable for the next update to global riverine N2O flux estimates.
Data used in "Evaluation of topography and vegetation coverage impacts on watershed-scale active layer freeze-thaw processes with a simple algorithm in permafrost region on the Qinghai-Tibet Plateau"
<p>This is the data used in the manuscript "Evaluation of topography and vegetation coverage impacts on watershed-scale active layer freeze-thaw processes with a simple algorithm in permafrost region on the Qinghai-Tibet Plateau" (JGR earth surface 2020JF005564 ).</p>
Data from: Comparative phylogeography of the plateau zokor (Eospalax baileyi) and its host-associated flea (Neopsylla paranoma) in the Qinghai-Tibet Plateau
Background: Specific host-parasite systems often embody a particular co-distribution phenomenon, in which the parasite's phylogeographic pattern is dependent on its host. In practice, however, both congruent and incongruent phylogeographic patterns between the host and the parasite have been reported. Here, we compared the population genetics of the plateau zokor (Eospalax baileyi), a subterranean rodent, and its host-associated flea species, Neopsylla paranoma, with an aim to determine whether the two animals share a similar phylogeographic pattern. Results: We sampled 130 host-parasite pairs from 17 localities in the Qinghai-Tibet Plateau (QTP), China, and sequenced a mitochondrial DNA (mtDNA) segment (~2,500 bp), including the complete COI and COII genes. We also detected 55 zokor and 75 flea haplotypes. AMOVA showed that the percentage of variation among the populations of zokors constituted 97.10%, while the within population variation was only 2.90%; for fleas, the values were 85.68% and 14.32%, respectively. Moreover, the flea Fst (fixation index) values were significantly smaller than in zokor. Although the Fst values between zokors and fleas were significantly and positively correlated (N =105, R =0.439, p =0.000), only a small amount (R2= 0.19) of the flea Fst variations could be explained by the zokor Fst variations. The two animals showed very distinct haplotype network structures from each other while co-phylogenetic analyses were unable to reject the hypothesis of an independence of speciation events. Conclusions: Zokors and fleas have very distinct population genetic patterns from each other, likely due to the influence of other sympatrically-distributed vertebrates on the transmission of fleas.
Data from: Pliocene intraspecific divergence and Plio-Pleistocene range expansions within Picea likiangensis (Lijiang spruce), a dominant forest tree of the Qinghai-Tibet Plateau
A knowledge of intraspecific divergence and range dynamics of dominant forest trees in response to past geological and climate change is of major importance to an understanding of their recent evolution and demography. Such knowledge is informative of how forests were affected by environmental factors in the past and may provide pointers to their response to future environmental change. However, genetic signatures of such historical events are often weak at individual loci due to large effective population sizes and long generation times of forest trees. This problem can be overcome by analysing genetic variation across multiple loci. We used this approach to examine intraspecific divergence and past range dynamics in the conifer Picea likiangensis, a dominant tree of forests occurring in eastern and southern areas of the Qinghai-Tibet Plateau (QTP). We sequenced 13 nuclear loci, two mitochondrial DNA regions and three plastid (chloroplast) DNA regions in 177 individuals sampled from 22 natural populations of this species, and tested the hypothesis that its evolutionary history was markedly affected by Pliocene QTP uplifts and Quaternary climatic oscillations. Consistent with the taxonomic delimitation of the three morphologically divergent varieties examined, all individuals clustered into three genetic groups with inter-variety admixture detected in regions of geographical overlap. Divergence between varieties was estimated to have occurred within the Pliocene and ecological niche modeling based on 20 ecological variables suggested that niche differentiation was high. Furthermore, modeling of population genetic data indicated that two of the varieties (var. rubescens and var. linzhiensis) expanded their population sizes after the largest Quaternary glaciation in the QTP, while expansion of the third variety (var. likiangensis) began prior to this, probably following the Pliocene QTP uplift. These findings point to the importance of geological and climatic changes during the Pliocene and Pleistocene as causes of intraspecific diversification and range shifts of dominant tree species in the QTP biodiversity hotspot region.
FIGURES 22–28 in Five new species of Drymeia Meigen from the Tibet Plateau, China (Diptera: Muscidae)
FIGURES 22–28. Drymeia spinicosta Xue and Xiang, sp. nov. (male and female).?: 22. Wing in anterior view. 23. Sternite 5 in ventral view. 24. Cerci in posterior view. 25. Terminalia in profile view.?: 26. Sternites 1–5. 27. Ovipositor in dorsal and ventral views. 28. Spermatheca.
FIGURES 8–13 in Five new species of Drymeia Meigen from the Tibet Plateau, China (Diptera: Muscidae)
FIGURES 8–13. Drymeia nudiapica Xue and Zhang, sp. nov. (male). 8. Abdomen in dorsal view. 9. Mid femur in anterior view. 10. Hind tibia apical part in anterior view. 11. Sternite 5 in ventral view. 12. Cerci in posterior view. 13. Terminalia in profile view.
FIGURES 14–21 in Five new species of Drymeia Meigen from the Tibet Plateau, China (Diptera: Muscidae)
FIGURES 14–21. Drymeia minutifica Xue and Wang, sp. nov. (male and female).?: 14. Abdomen in dorsal view. 15. Mid tarsus in posterior view. 16. Sternite 5 in ventral view. 17. Cerci in posterior view. 18. Terminalia in profile view.?: 19. Sternites 1–5. 20. Ovipositor in dorsal and ventral views. 21. Spermatheca.
FIGURES 1–7 in Five new species of Drymeia Meigen from the Tibet Plateau, China (Diptera: Muscidae)
FIGURES 1–7. Drymeia naticerca Xue and Xiang, sp. nov. (male and female).?: 1. Head in profile view. 2. Fore tarsus in anterior view. 3. Cerci in posterior view. 4. Terminalia in profile view.?: 5. Sternites 1–5. 6. Ovipositor in dorsal and ventral views. 7. Spermatheca.
FIGURES 29–33 in Five new species of Drymeia Meigen from the Tibet Plateau, China (Diptera: Muscidae)
FIGURES 29–33. Drymeia pilifemorata Xue and Wang, sp. nov. (male). 29. Abdomen in dorsal view. 30. Hind femur in anterior view. 31. Sternite 5 in ventral view. 32. Cerci in posterior view. 33. Terminalia in profile view.
FIGURE 14 in Hydroporus sejilashan sp. n., a new diving beetle of the acutangulus - complex from Xizang, China (Qinghai-Tibet Plateau), and notes on other taxa of the genus (Coleoptera, Dytiscidae, Hydroporinae)
FIGURE 14. Distribution of (enlarged map): Hydroporus tuvaensis (triangle), Hydroporus tibetanus (stars), and Hydroporus sejilashan sp. n. (encircled star). Red squares indicate capitals of countries/provinces or other important and well-known cities.
FIGURES 6–10 in Hydroporus sejilashan sp. n., a new diving beetle of the acutangulus - complex from Xizang, China (Qinghai-Tibet Plateau), and notes on other taxa of the genus (Coleoptera, Dytiscidae, Hydroporinae)
FIGURES 6–10. (6) Median lobe of Hydroporus sejilashan sp. n. in ventral (a) and in lateral view (b); (7) left paramere of Hydroporus sejilashan sp. n.; (8) median lobe of Hydroporus tibetanus in ventral view: (a) lectotype, (b) specimen from Ganzi; same in lateral view: (c) specimen from Ganzi; left paramere of Hydroporus tibetanus; (9) specimen from Ganzi, (10) lectotype.
FIGURES 1–5 in Hydroporus sejilashan sp. n., a new diving beetle of the acutangulus - complex from Xizang, China (Qinghai-Tibet Plateau), and notes on other taxa of the genus (Coleoptera, Dytiscidae, Hydroporinae)
FIGURES 1–5. Habitus of: (1) Hydroporus acutangulus, (2) Hydroporus polaris, (3) Hydroporus tuvaensis, (4) Hydroporus tibetanus (lectotype), (5) Hydroporus sejilashan sp. n.
FIGURE 13 in Hydroporus sejilashan sp. n., a new diving beetle of the acutangulus - complex from Xizang, China (Qinghai-Tibet Plateau), and notes on other taxa of the genus (Coleoptera, Dytiscidae, Hydroporinae)
FIGURE 13. Distribution of: Hydroporus acutangulus (circles), Hydroporus polaris (squares), Hydroporus tuvaensis (triangle), Hydroporus tibetanus (stars), and Hydroporus sejilashan sp. n. (encircled star); the circle with question mark refers to the type locality of Hydroporus sumakovi (see text). Red squares indicate capitals of countries/provinces or other important and well-known cities.
FIGURES 5–10 in Three new species of Neuraphes in eastern Qinghai-Tibet Plateau (Coleoptera, Staphylinidae, Scydmaeninae)
FIGURES 5–10. Aedeagi in dorsal (5, 8), ventral (6, 9) and lateral (7, 10) views. Neuraphes sichuanus sp. n. (5–7), N. tuyuhun sp. n. (8–10).
FIGURES 1–4 in Three new species of Neuraphes in eastern Qinghai-Tibet Plateau (Coleoptera, Staphylinidae, Scydmaeninae)
FIGURES 1–4. Neuraphes, habitus of males: N. sichuanus sp. n. (1), N. tuyuhun sp. n. (2), N. miniqinghaiensis sp. n. (3), and N. cf. qinghaiensis (4).
FIGURE 17 in Three new species of Neuraphes in eastern Qinghai-Tibet Plateau (Coleoptera, Staphylinidae, Scydmaeninae)
FIGURE 17. Distribution of nominal species of Neuraphes in mountain ranges that surround Qinghai-Tibet Plateau. Neuraphes aruensis Franz (a), N. jumlanus Franz (b), N. taksangensis Franz (c), N. himalayanus Franz (d), N. khumbuanus Jałoszyński (e), N. mephistopheles Jałoszyński (f), N. hengduanus Jałoszyński (g), N. tibetanus Jałoszyński (h), N. pseudojumlanus Jałoszyński (i), N. sichuanus sp. n. (j), N. tuyuhun sp. n. (k), N. miniqinghaiensis sp. n. (l), N. cf. qinghaiensis (m), N. qinghaiensis Jałoszyński (n).
FIGURES 11–16 in Three new species of Neuraphes in eastern Qinghai-Tibet Plateau (Coleoptera, Staphylinidae, Scydmaeninae)
FIGURES 11–16. Aedeagi in dorsal (11, 14), ventral (12, 15) and lateral (13, 16) views. Neuraphes miniqinghaiensis sp. n. (11–13), and N. cf. qinghaiensis (14–16).
Spatiotemporal distributions of the thunderstorm and lightning structures over the Qinghai–Tibet Plateau
<p>This dataset is for the article titled "<span>Spatiotemporal distributions of the thunderstorm and lightning structures over the Qinghai–Tibet Plateau</span>" which is being submitted to the Remote Sensing for review. </p> <p><strong><span>Abstract: </span></strong><span>Utilizing data from the Tropical Rainfall Measuring Mission (TRMM) satellite's Precipitation Radar (PR) and Lightning Imaging Sensor (LIS), our study explores the previously uncharted spatiotemporal distributions of thunderstorm and lightning structures over the Qinghai-Tibet Plateau (QTP). The structural aspects are crucial when considering the impact of thunderstorm and lightning activity in the atmospheric processes. The vertical development height and horizontal extension area of QTP thunderstorms exhibit distinct spatial patterns, with greater heights in the south and larger areas in the east. The spatial distribution of thunderstorm vertical development height relative to the surface aligns more closely with the horizontal extension, indicating stronger convection in the eastern QTP. Thunderstorm lightning frequency shows an eastward and northward prevalence, while lightning density peaks in the western and northeastern QTP, with a minimum in the southeast. Additionally, lightning duration, spatial expansion, and radiance are more pronounced in the eastern QTP than the western part. Monthly variations reveal heightened values during the summer season for thunderstorm vertical extension, areas with reflectivity greater than 30dBZ, and lightning frequency. Diurnal variations highlight an afternoon increase in thunderstorm vertical and horizontal extension, lightning frequency, duration, and spatial scale. From a statistical perspective, under weak convective conditions, lightning length exhibits a positive correlation with thunderstorm convection intensity, contrasting with the opposite relationship suggested by previous studies. The article further analyzes and discusses the correlations between various thunderstorm and lightning structural parameters, enhancing our understanding of the distinctive features of thunderstorm and lightning activities in the QTP.</span></p>
Stable isotope dataset of different water components in a tyical permafrost-dominated Basin on the Qinghai–Tibet Plateau
<p>Different water bodies, including precipitation, thermokarst lakes/ponds, stream, natural springs, as well as ground ice were monitored in a permafrost-dominated Basin (the Beiluhe basin) on central Qinghai-Tibet Plateau (QTP). Six years’ continuous sampling work were conducted between 2017 and 2022 in this permafrost basin. Totally, 554 precipitation samples, 2402 lakes/ponds samples, 675 stream water samples, 102 supra-permafrost water samples, and 19 sub-permafrost water samples were collected during six years’ continuous sampling work. Importantly, 355 ground ice samples were collected from 17 boreholes and 4 samples were obtained from 2 thaw slump profiles. The stable isotopes (δ18О, δD, and d-excess) were obtained. This is the first comprehensive dataset in permafrost regions on the QTP, which will facilitate the understanding of hydrological processes under permafrost degradation in the Asian water Tower.</p>
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
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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
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.