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FIGURES –. Rare taxa (SEM, New Caledonia, Melanesia). Cocconeis sp. 2 in Riaux-Gobin et al. 2015 (31, 32), short marginal SV striae between each short raised virgae (31, arrow; 32, arrowhead), SV narrow sternum, siliceous pearls (31), C. sp. 4 in Riaux-Gobin et al. 2015 (33–34), strong marginal crista marginalis, short marginal striae on top of each short raised virga (33, arrow; 34, arrowhead),?C. sp. 5 in Riaux-Gobin et al. 2015 (35–36), short SV striae and a raised axial structure (35, arrow). Scale bars = 3 µm (31), 2 µm (33, 35), 1 µm (32, 36), 500 nm (34). in Marine Achnanthales (Bacillariophyceae) from New Caledonia (Melanesia): assemblage specificities, ultramafic environment
FIGURES –. Rare taxa (SEM, New Caledonia, Melanesia). Cocconeis sp. 2 in Riaux-Gobin et al. 2015 (31, 32), short marginal SV striae between each short raised virgae (31, arrow; 32, arrowhead), SV narrow sternum, siliceous pearls (31), C. sp. 4 in Riaux-Gobin et al. 2015 (33–34), strong marginal crista marginalis, short marginal striae on top of each short raised virga (33, arrow; 34, arrowhead),?C. sp. 5 in Riaux-Gobin et al. 2015 (35–36), short SV striae and a raised axial structure (35, arrow). Scale bars = 3 µm (31), 2 µm (33, 35), 1 µm (32, 36), 500 nm (34).
FIGURES –8. Cocconeis coronatoides Riaux-Gobin & Romero forma 1. SEM (New Caledonia, Melanesia). SVVC partially attached (2, arrowhead), SV areolae domed hymenes with radial slits arranged by sectors (external view 3, arrowhead), marginal RV hyaline area (external view 4, arrowhead), uniseriate striae up to margin (4), open RVVC (5, ellipse), RVVC with irregularly spread fimbriae (6, arrowhead), SVVC still attached, small marginal chambers (internal view 7, arrowhead), SV margin (external view 8). Scale bars = 3 µm (8), 2 µm (2, 4, 7), 1 µm (6), 700 nm (5), 200 nm (3). in Marine Achnanthales (Bacillariophyceae) from New Caledonia (Melanesia): assemblage specificities, ultramafic environment
FIGURES –8. Cocconeis coronatoides Riaux-Gobin & Romero forma 1. SEM (New Caledonia, Melanesia). SVVC partially attached (2, arrowhead), SV areolae domed hymenes with radial slits arranged by sectors (external view 3, arrowhead), marginal RV hyaline area (external view 4, arrowhead), uniseriate striae up to margin (4), open RVVC (5, ellipse), RVVC with irregularly spread fimbriae (6, arrowhead), SVVC still attached, small marginal chambers (internal view 7, arrowhead), SV margin (external view 8). Scale bars = 3 µm (8), 2 µm (2, 4, 7), 1 µm (6), 700 nm (5), 200 nm (3).
FIGURES – 0. Cocconeis cf. delapunctata Hohn. SEM (New Caledonia, Melanesia). SV with axial void areas (external views 27–29, arrowheads), possible RV with areas devoid of areolae (30, arrowheads). Scale bars = 2 µm (27–30). in Marine Achnanthales (Bacillariophyceae) from New Caledonia (Melanesia): assemblage specificities, ultramafic environment
FIGURES – 0. Cocconeis cf. delapunctata Hohn. SEM (New Caledonia, Melanesia). SV with axial void areas (external views 27–29, arrowheads), possible RV with areas devoid of areolae (30, arrowheads). Scale bars = 2 µm (27–30).
FIGURES – 0. Cocconeis sp. (cf. capensis (Cholnoky) Witkowski). SEM (New Caledonia, Melanesia). External views. Biseriate SV striae (16, 18, twin arrows), narrow and straight SV sternum, marginal large area with one row of beads (16–18), SV marginal area with tiny pores (17), SV crater-like areolae with oblong in a zigzag lumen (19), SV areolae with sort of expansions (20). Scale bars: 4 µm (16), 3 µm (18), 700 nm (17), 400 nm (19–20). in Marine Achnanthales (Bacillariophyceae) from New Caledonia (Melanesia): assemblage specificities, ultramafic environment
FIGURES – 0. Cocconeis sp. (cf. capensis (Cholnoky) Witkowski). SEM (New Caledonia, Melanesia). External views. Biseriate SV striae (16, 18, twin arrows), narrow and straight SV sternum, marginal large area with one row of beads (16–18), SV marginal area with tiny pores (17), SV crater-like areolae with oblong in a zigzag lumen (19), SV areolae with sort of expansions (20). Scale bars: 4 µm (16), 3 µm (18), 700 nm (17), 400 nm (19–20).
FIGURES –. Cocconeis sp. (cf. C. bilicis F.Meister). SEM (New Caledonia, Melanesia). Different specimens with SV sectors separated (or not) by a crista marginalis (21, 24), SV striae uniseriae near the sternum and biseriate thereafter (21, 24), SV areolae lumen with circular ornamentation (23, arrow), crista marginalis (22), SVVC in advalvar view with digit fimbriae (25, arrowhead), large RV axial concave area (26). Scale bars = 6 µm (24), 5 µm (26), 4 µm (21), 3 µm (25), 1 µm (22–23). in Marine Achnanthales (Bacillariophyceae) from New Caledonia (Melanesia): assemblage specificities, ultramafic environment
FIGURES –. Cocconeis sp. (cf. C. bilicis F.Meister). SEM (New Caledonia, Melanesia). Different specimens with SV sectors separated (or not) by a crista marginalis (21, 24), SV striae uniseriae near the sternum and biseriate thereafter (21, 24), SV areolae lumen with circular ornamentation (23, arrow), crista marginalis (22), SVVC in advalvar view with digit fimbriae (25, arrowhead), large RV axial concave area (26). Scale bars = 6 µm (24), 5 µm (26), 4 µm (21), 3 µm (25), 1 µm (22–23).
Traits and ecological space availability predict avian densities at the country scale of the Czech Republic
<p><span>Species geographical distributions and abundances are a central focus of current ecological research. Although multiple studies have been conducted on their elucidation, some important information are still missing. One of them is the knowledge of ecological traits of species responsible for the population density variations across geographical (i.e. total physical area) and ecological spaces (i.e. suitable habitat area). This is crucial for understanding how ecological specialisation shapes the geographical distribution of species, and provides key knowledge about the sensitivity of species to current environmental challenges. Here, we precisely describe habitat availability for individual species using fine-scale field data collected across the entire Czech Republic. In the next step, we used this information to test the relationships between bird traits and country-scale estimates of population densities assessed in both geographical and ecological space.</span><span> We did not find any effect of habitat specialisation on avian density in geographical space. But when we recalculated densities for ecological space available, we found a positive correlation with habitat specialization. Specialists occur at higher densities</span><span> in suitable habitats. Moreover, birds with arboreal and </span><span>hole-nesting strategies showed higher densities in both geographical and ecological spaces. However, we found no significant </span><span>effects of morphological (body mass, structural body size) and reproductive (position along </span><span>the slow-fast life-history continuum)</span><span> traits on avian densities in either geographical or ecological space. Our findings suggest that ecological space availability is a strong determinant of avian abundance and highlight the importance of precise knowledge of species-specific habitat requirements. Revival of this classical but challenging ecological topic of habitat-specific densities is needed for both proper understanding of pure ecological issues and practical steps in </span><span>the conservation of nature.</span></p>
FIGURE. Dicorynia paraensis, var. ingens, var. macrophylla and floral diagram to D. paraensis. A–C. Dicorynia paraensis var. macrophylla; A. Branch with leaves; B. Axillary bud; C. Petiolule and base of the leaflet; D–G. Dicorynia paraensis var. ingens; D. Branch with a leaf; E. Axillary bud; F. Petiolule and base of the leaflet; G. Detail of the abaxial face of the leaflet presenting dark glandular trichomes; H. Floral diagram of D. paraensis, arrows represent bracts and asterisks represent lateral flowers in a cymose subunit. A: D. Cardoso 3397; B–C: A. Ducke s.n. RB231037; D–G: A. Ducke s.n. MG16022. Drawn by M. Falcão. Scale bar. A, D: 3 cm; B–C, E–F: 2mm; G: 0.1mm. in A Taxonomic Revision of the Amazonian Genus Dicorynia (Fabaceae: Dialioideae)
FIGURE. Dicorynia paraensis, var. ingens, var. macrophylla and floral diagram to D. paraensis. A–C. Dicorynia paraensis var. macrophylla; A. Branch with leaves; B. Axillary bud; C. Petiolule and base of the leaflet; D–G. Dicorynia paraensis var. ingens; D. Branch with a leaf; E. Axillary bud; F. Petiolule and base of the leaflet; G. Detail of the abaxial face of the leaflet presenting dark glandular trichomes; H. Floral diagram of D. paraensis, arrows represent bracts and asterisks represent lateral flowers in a cymose subunit. A: D. Cardoso 3397; B–C: A. Ducke s.n. RB231037; D–G: A. Ducke s.n. MG16022. Drawn by M. Falcão. Scale bar. A, D: 3 cm; B–C, E–F: 2mm; G: 0.1mm.
FIGURE. Varieties of Dicorynia paraensis. A. Dicorynia paraensis var. paraensis; B. Dicorynia paraensis var. macrophylla; C. Dicorynia paraensis var. uaupensis; D. Dicorynia paraensis var. ingens. A: Spruce, R. 1918; B: Ducke, A. s.n. RB23321; C: Amaral, I.L. 574; D: Ducke, A. s.n. MG15707(S). Images by: A: Paris Virtual Herbarium; B-D: Reflora. Scale bar: 5cm. in A Taxonomic Revision of the Amazonian Genus Dicorynia (Fabaceae: Dialioideae)
FIGURE. Varieties of Dicorynia paraensis. A. Dicorynia paraensis var. paraensis; B. Dicorynia paraensis var. macrophylla; C. Dicorynia paraensis var. uaupensis; D. Dicorynia paraensis var. ingens. A: Spruce, R. 1918; B: Ducke, A. s.n. RB23321; C: Amaral, I.L. 574; D: Ducke, A. s.n. MG15707(S). Images by: A: Paris Virtual Herbarium; B-D: Reflora. Scale bar: 5cm.
FIGURE. Seedlings, seeds, embryos, anthers, and pollen in Dicorynia. A–D. Different stages of development in seedlings of D. paraensis, First eophiles unifoliolate and opposite; E–G. Seed of D. guianensis: E. External surface; F. Endosperm of the longitudinally sectioned seed, note the slightly gelatinous upper region; G. Cotyledon and embryo of longitudinally sectioned seed; H. SEM of seed's testa in D. paraensis; I. SEM of endosperm's surface in D. guianensis (notice the presence of circular perforations); J–K. SEM of the hypocotyl-radicular axis of the seed in D. guianensis and D. paraensis; L. SEM of seed's testa in D. guianensis; M–N. SEM of plumule region in embryo of D. guianensis and D. paraensis (note the developed leaf primordia); O. Apex of anther in longer stamen of D. paraensis, showing 4 sporangia and two pores covered by an apicle; P. Apex of anther in shorter stamen of D. guianensis, at least 9 sporangia; Q. Apex of anther in longer stamen of D. guianensis, 8 sporangia; R. Pollen grains in D. paraensis. A–D: Falcão, M.J. 91; E–G, I–J, L–M: Gentry 63030; H, K, N: Berry, P.E. 7460; O: Amaral, E. 618; P, Q: Unknown collector MO1576407; Scale bar. A–D: 2cm; E–G: 3mm; H–L: 1mm; M–N: 100 μm; O-Q: 200μm; R: 5 μm. in A Taxonomic Revision of the Amazonian Genus Dicorynia (Fabaceae: Dialioideae)
FIGURE. Seedlings, seeds, embryos, anthers, and pollen in Dicorynia. A–D. Different stages of development in seedlings of D. paraensis, First eophiles unifoliolate and opposite; E–G. Seed of D. guianensis: E. External surface; F. Endosperm of the longitudinally sectioned seed, note the slightly gelatinous upper region; G. Cotyledon and embryo of longitudinally sectioned seed; H. SEM of seed's testa in D. paraensis; I. SEM of endosperm's surface in D. guianensis (notice the presence of circular perforations); J–K. SEM of the hypocotyl-radicular axis of the seed in D. guianensis and D. paraensis; L. SEM of seed's testa in D. guianensis; M–N. SEM of plumule region in embryo of D. guianensis and D. paraensis (note the developed leaf primordia); O. Apex of anther in longer stamen of D. paraensis, showing 4 sporangia and two pores covered by an apicle; P. Apex of anther in shorter stamen of D. guianensis, at least 9 sporangia; Q. Apex of anther in longer stamen of D. guianensis, 8 sporangia; R. Pollen grains in D. paraensis. A–D: Falcão, M.J. 91; E–G, I–J, L–M: Gentry 63030; H, K, N: Berry, P.E. 7460; O: Amaral, E. 618; P, Q: Unknown collector MO1576407; Scale bar. A–D: 2cm; E–G: 3mm; H–L: 1mm; M–N: 100 μm; O-Q: 200μm; R: 5 μm.
FIGURE. Terminal and axillary buds in Dicorynia. Terminal bud with a lateral axillary bud on left in: A. D. guianensis and; B. D. paraensis var. uaupensis; C. D. guianensis: axillary bud laterally obovate; D. D. paraensis var. paraensis: axillary bud laterally narrowly lanceolate; E. D. paraensis var. macrophylla: axillary bud, laterally oblong and acuminate; F. D. paraensis var. macrophylla: axillary bud elliptical, pedunculate and with obtuse apex; G. D. paraensis var. uaupensis; typical axillary bud, laterally narrowly obovate and acuminate (note in B an orbicular example in the same variety); H. D. paraensis var. ingens: axillary bud orbicular. A, C: Stahel s.n. RB756216; B: Ducke, A. s.n. RB20337; D: Ducke, A. s.n. RB24185; E: Ducke, A. s.n. RB231037; F: Falcão, M.J. 90; G: Amaral, I.L. 618; H: Ducke, A. s.n. MG16022. Scale bar: 2 mm. in A Taxonomic Revision of the Amazonian Genus Dicorynia (Fabaceae: Dialioideae)
FIGURE. Terminal and axillary buds in Dicorynia. Terminal bud with a lateral axillary bud on left in: A. D. guianensis and; B. D. paraensis var. uaupensis; C. D. guianensis: axillary bud laterally obovate; D. D. paraensis var. paraensis: axillary bud laterally narrowly lanceolate; E. D. paraensis var. macrophylla: axillary bud, laterally oblong and acuminate; F. D. paraensis var. macrophylla: axillary bud elliptical, pedunculate and with obtuse apex; G. D. paraensis var. uaupensis; typical axillary bud, laterally narrowly obovate and acuminate (note in B an orbicular example in the same variety); H. D. paraensis var. ingens: axillary bud orbicular. A, C: Stahel s.n. RB756216; B: Ducke, A. s.n. RB20337; D: Ducke, A. s.n. RB24185; E: Ducke, A. s.n. RB231037; F: Falcão, M.J. 90; G: Amaral, I.L. 618; H: Ducke, A. s.n. MG16022. Scale bar: 2 mm.
Spatial impact of urban expansion on lake surface water temperature based on the perspective of watershed scale
<p>This is the original data from the article "Spatial impact of urban expansion on lake surface water temperature based on the perspective of watershed-scale"</p>
Scaling fish swimming recreational fishing
<p>Data on fight times for recreationally angled species</p>
A Large-Scale Dataset of Twitter Chatter about Online Learning during the Current COVID-19 Omicron Wave
<p><strong>Please cite the following paper when using this dataset:</strong></p> <p>N. Thakur, “A Large-Scale Dataset of Twitter Chatter about Online Learning during the Current COVID-19 Omicron Wave,” Journal of Data, vol. 7, no. 8, p. 109, Aug. 2022, doi: 10.3390/data7080109</p> <p><strong>Abstract</strong></p> <p>The COVID-19 Omicron variant, reported to be the most immune evasive variant of COVID-19, is resulting in a surge of COVID-19 cases globally. This has caused schools, colleges, and universities in different parts of the world to transition to online learning. As a result, social media platforms such as Twitter are seeing an increase in conversations, centered around information seeking and sharing, related to online learning. Mining such conversations, such as Tweets, to develop a dataset can serve as a data resource for interdisciplinary research related to the analysis of interest, views, opinions, perspectives, attitudes, and feedback towards online learning during the current surge of COVID-19 cases caused by the Omicron variant. Therefore this work presents a large-scale public Twitter dataset of conversations about online learning since the first detected case of the COVID-19 Omicron variant in November 2021. The dataset is compliant with the privacy policy, developer agreement, and guidelines for content redistribution of Twitter and the FAIR principles (Findability, Accessibility, Interoperability, and Reusability) principles for scientific data management.</p> <p><strong>Data Description</strong></p> <p>The dataset comprises a total of 52,984 Tweet IDs (that correspond to the same number of Tweets) about online learning that were posted on Twitter from 9th November 2021 to 13th July 2022. The earliest date was selected as 9th November 2021, as the Omicron variant was detected for the first time in a sample that was collected on this date. 13th July 2022 was the most recent date as per the time of data collection and publication of this dataset.</p> <p>The dataset consists of 9 .txt files. An overview of these dataset files along with the number of Tweet IDs and the date range of the associated tweets is as follows. Table 1 shows the list of all the synonyms or terms that were used for the dataset development. </p> <ul> <li>Filename: TweetIDs_November_2021.txt (No. of Tweet IDs: 1283, Date Range of the associated Tweet IDs: November 1, 2021 to November 30, 2021)</li> <li>Filename: TweetIDs_December_2021.txt (No. of Tweet IDs: 10545, Date Range of the associated Tweet IDs: December 1, 2021 to December 31, 2021)</li> <li>Filename: TweetIDs_January_2022.txt (No. of Tweet IDs: 23078, Date Range of the associated Tweet IDs: January 1, 2022 to January 31, 2022)</li> <li>Filename: TweetIDs_February_2022.txt (No. of Tweet IDs: 4751, Date Range of the associated Tweet IDs: February 1, 2022 to February 28, 2022)</li> <li>Filename: TweetIDs_March_2022.txt (No. of Tweet IDs: 3434, Date Range of the associated Tweet IDs: March 1, 2022 to March 31, 2022)</li> <li>Filename: TweetIDs_April_2022.txt (No. of Tweet IDs: 3355, Date Range of the associated Tweet IDs: April 1, 2022 to April 30, 2022)</li> <li>Filename: TweetIDs_May_2022.txt (No. of Tweet IDs: 3120, Date Range of the associated Tweet IDs: May 1, 2022 to May 31, 2022)</li> <li>Filename: TweetIDs_June_2022.txt (No. of Tweet IDs: 2361, Date Range of the associated Tweet IDs: June 1, 2022 to June 30, 2022)</li> <li>Filename: TweetIDs_July_2022.txt (No. of Tweet IDs: 1057, Date Range of the associated Tweet IDs: July 1, 2022 to July 13, 2022)</li> </ul> <p>The dataset contains only Tweet IDs in compliance with the terms and conditions mentioned in the privacy policy, developer agreement, and guidelines for content redistribution of Twitter. The Tweet IDs need to be hydrated to be used. For hydrating this dataset the Hydrator application (<a href="https://github.com/DocNow/hydrator/releases">link to download</a> and a <a href="https://towardsdatascience.com/learn-how-to-easily-hydrate-tweets-a0f393ed340e#:~:text=Hydrating%20Tweets">step-by-step tutorial</a> on how to use Hydrator) may be used.</p> <p><strong>Table 1</strong>. List of commonly used synonyms, terms, and phrases for online learning and COVID-19 that were used for the dataset development</p> <table> <tbody> <tr> <td> <p>Terminology</p> </td> <td> <p>List of synonyms and terms</p> </td> </tr> <tr> <td> <p>COVID-19</p> </td> <td> <p>Omicron, COVID, COVID19, coronavirus, coronaviruspandemic, COVID-19, corona, coronaoutbreak, omicron variant, SARS CoV-2, corona virus</p> </td> </tr> <tr> <td> <p>online learning</p> </td> <td> <p>online education, online learning, remote education, remote learning, e-learning, elearning, distance learning, distance education, virtual learning, virtual education, online teaching, remote teaching, virtual teaching, online class, online classes, remote class, remote classes, distance class, distance classes, virtual class, virtual classes, online course, online courses, remote course, remote courses, distance course, distance courses, virtual course, virtual courses, online school, virtual school, remote school, online college, online university, virtual college, virtual university, remote college, remote university, online lecture, virtual lecture, remote lecture, online lectures, virtual lectures, remote lectures</p> </td> </tr> </tbody> </table> <p> </p>
Regional-Scale Lithospheric Recycling on Venus via Peel-Back Delamination
<p>This archive contains input parameter files and a selection of output files for each of the models presented in the manuscript titled 'Regional-Scale Lithospheric Recycling on Venus via Peel-Back Delamination'. Models were run using the code, StagYY (Tackley, 2008), and visualization and post-processing was done using StagLab (Crameri, 2018). Output files are given for two times for each model: the first as the slab encounters the 710 km phase transitions and the second near the time of slab break-off. Output files containing velocity, pressure, temperature, and viscosity data are provided. </p>
FIGURE 3. Heliophila verna. A. Plant. B. Mitotic chromosome spread. Scale, 10 in Heliophila verna (Brassicaceae), a new species from the Northern Cape of South Africa
FIGURE 3. Heliophila verna. A. Plant. B. Mitotic chromosome spread. Scale, 10 µm. C and D. Photos of the type locality in Kamieberg of the Northern Cape. Arrows indicates the exact collection site. (Photos by T.M.).
Data from: Links across ecological scales: Plant biomass responses to elevated CO2
<p>Despite the wide agreement that increased plant biomass accumulation under <span>elevated CO2 concentrations (e[CO2]) might play a key role in climate change, the effect of e[CO2] on plant biomass levels remains a major uncertainty in climate models. In the review associated with this dataset, we discuss the evidence for increased biomass levels under e[CO2] across multiple levels of ecological organization, scaling from physiological responses to changes in population-, community-, ecosystem-, and global-scale dynamics. We find that evidence for a sustained biomass response to e[CO2] varies across ecological scales, leading to diverging conclusions about the responses of individuals, populations, communities, and ecosystems. We identify key research gaps in our understanding of the effect of e[CO2] on plant biomass and highlight the need to integrate knowledge across scales of ecological organization so that large-scale modeling can represent the finer-scale mechanisms needed to constrain our understanding of future terrestrial C storage.</span></p>
The first comprehensive revision of all the species attributed to Melomys led J. I. Menzies in 1996 to resurrect the genus Paramelomys and to redefine its morphologicallimits and species content. Menzies created P. gressitti as a new species belonging to a group displaying morphological similarities and including also P. lorentzii and P. moncktoni. Monotypic Distribution. E New Guinea. Descriptive notes. Head-body 135-162 mm, hindfoot 30-34 mm; no specific data are available for body weight. Gressitt's Mosaic-tailed Rat is a medium-sized Paramelomys with a soft, thick and woolly pelage, a long narrow foot, and a tail with three hairs per scale. It exhibits a medium-sepia dorsal pelage and a gray-buff ventral one. Tail is slightly shorter (99%) than head-body length. The skull has a narrow zygomatic plate. Habitat. Moist tropical mountain forest between 2300 m and 2400 m. Food and Feeding. No information. Breeding. No information. Activity patterns. Gressitt's Mosaic-tailed Rat is terrestrial. Movements, Home range and Social organization. No information. Status and Conservation. Classified as Endangered on The IUCN Red List owing to its small geographic range (less than 3500 km?*) and the destruction ofits habitat by mining and logging activities. The major threat to Gressitt's Mosaic-tailed Rat is ongoing habitat degradation caused by nearby human populations; habitat on Mount Kandy has been destroyed by gold-miners and wood-cutters. Bibliography. Menzies (1996). in Muridae
The first comprehensive revision of all the species attributed to Melomys led J. I. Menzies in 1996 to resurrect the genus Paramelomys and to redefine its morphologicallimits and species content. Menzies created P. gressitti as a new species belonging to a group displaying morphological similarities and including also P. lorentzii and P. moncktoni. Monotypic Distribution. E New Guinea. Descriptive notes. Head-body 135-162 mm, hindfoot 30-34 mm; no specific data are available for body weight. Gressitt's Mosaic-tailed Rat is a medium-sized Paramelomys with a soft, thick and woolly pelage, a long narrow foot, and a tail with three hairs per scale. It exhibits a medium-sepia dorsal pelage and a gray-buff ventral one. Tail is slightly shorter (99%) than head-body length. The skull has a narrow zygomatic plate. Habitat. Moist tropical mountain forest between 2300 m and 2400 m. Food and Feeding. No information. Breeding. No information. Activity patterns. Gressitt's Mosaic-tailed Rat is terrestrial. Movements, Home range and Social organization. No information. Status and Conservation. Classified as Endangered on The IUCN Red List owing to its small geographic range (less than 3500 km?*) and the destruction ofits habitat by mining and logging activities. The major threat to Gressitt's Mosaic-tailed Rat is ongoing habitat degradation caused by nearby human populations; habitat on Mount Kandy has been destroyed by gold-miners and wood-cutters. Bibliography. Menzies (1996).
Distribution. Known only from type locality on S coast of Seram I, Indonesia. Descriptive notes. Head-body 123 mm, tail 128 mm, ear 14-6 mm, hindfoot 26-2 mm; weight 65 g (all mensural data are from holotype). Pavel's Seram Mosaic-tailed Rat is very small-bodied, with dorsal pelage soft and brightly colored rufescent reddish brown, hairs with graybases, and venter contrastingly pure white; tail is slightly longer than head-body length, all black in color, tail scales raised, one hair per scale, scale hairs very short. Upper surfaces of feet are dark gray; hindfeet broad, with first digit long. Cranium is relatively narrow, with nasal profile flat; teeth very small. Single known specimen (the holotype), a pregnant female, has four mammae. in Muridae
Distribution. Known only from type locality on S coast of Seram I, Indonesia. Descriptive notes. Head-body 123 mm, tail 128 mm, ear 14-6 mm, hindfoot 26-2 mm; weight 65 g (all mensural data are from holotype). Pavel's Seram Mosaic-tailed Rat is very small-bodied, with dorsal pelage soft and brightly colored rufescent reddish brown, hairs with graybases, and venter contrastingly pure white; tail is slightly longer than head-body length, all black in color, tail scales raised, one hair per scale, scale hairs very short. Upper surfaces of feet are dark gray; hindfeet broad, with first digit long. Cranium is relatively narrow, with nasal profile flat; teeth very small. Single known specimen (the holotype), a pregnant female, has four mammae.
Twitter Conversations about the COVID-19 Omicron Variant: A Large Scale Dataset of more than 500,000 Tweets
<p><strong>Please cite the following paper when using this dataset:</strong></p> <p>N. Thakur and C.Y. Han, “An Exploratory Study of Tweets about the SARS-CoV-2 Omicron Variant: Insights from Sentiment Analysis, Language Interpretation, Source Tracking, Type Classification, and Embedded URL Detection,” Journal of COVID, 2022, Volume 5, Issue 3, pp. 1026-1049</p> <p><strong>Abstract</strong></p> <p>This open-access dataset is one of the salient contributions of the above-mentioned paper. It presents a total of <strong>522,886</strong> Tweet IDs of the same number of <strong>Tweets about the SARS-CoV-2 Omicron Variant</strong> posted on Twitter since the first detected case of this variant on November 24, 2021. The dataset is compliant with the privacy policy, developer agreement, and guidelines for content redistribution of Twitter, as well as with the FAIR principles (Findability, Accessibility, Interoperability, and Reusability) principles for scientific data management.</p> <p><strong>Data Description</strong></p> <p>The Tweet IDs are presented in 7 different .txt files based on the timelines of the associated tweets. The data collection followed a keyword-based approach and tweets comprising the "omicron" keyword were filtered, collected, and added to this dataset. The following is the description of these dataset files.</p> <ul> <li>Filename: TweetIDs_November.txt (No. of Tweet IDs: 16471, Date Range of the Tweet IDs: November 24, 2021 to November 30, 2021)</li> <li>Filename: TweetIDs_December.txt (No. of Tweet IDs: 99288, Date Range of the Tweet IDs: December 1, 2021 to December 31, 2021)</li> <li>Filename: TweetIDs_January.txt (No. of Tweet IDs: 92860, Date Range of the Tweet IDs: January 1, 2022 to January 31, 2022)</li> <li>Filename: TweetIDs_February.txt (No. of Tweet IDs: 89080, Date Range of the Tweet IDs: February 1, 2022 to February 28, 2022)</li> <li>Filename: TweetIDs_March.txt (No. of Tweet IDs: 97844, Date Range of the Tweet IDs: March 1, 2022 to March 31, 2022)</li> <li>Filename: TweetIDs_April.txt (No. of Tweet IDs: 91587, Date Range of the Tweet IDs: April 1, 2022 to April 20, 2022)</li> <li>Filename: TweetIDs_May.txt (No. of Tweet IDs: 35756, Date Range of the Tweet IDs: May 1, 2022 to May 12, 2022)</li> </ul> <p>In the above table, the last date for May is May 12 as it was the most recent date at the time of data collection and dataset upload. The dataset would be updated soon to incorporate more recent tweets.</p> <p>The dataset contains only Tweet IDs in compliance with the terms and conditions mentioned in the privacy policy, developer agreement, and guidelines for content redistribution of Twitter. The Tweet IDs need to be hydrated to be used. For hydrating this dataset the Hydrator application (<a href="https://github.com/DocNow/hydrator/releases">link to download</a> and a <a href="https://towardsdatascience.com/learn-how-to-easily-hydrate-tweets-a0f393ed340e#:~:text=Hydrating%20Tweets">step-by-step tutorial</a> on how to use Hydrator) may be used.</p>
FIGURE 2 in Bambusaecoccus maolanensis, a new soft scale genus and species from China (Hemiptera: Coccomorpha: Coccidae)
FIGURE 2. Bambusaecoccus maolanensis Meng & Xing sp. n., adult female: anplt = anal plate; ant = antenna; dmic = dorsal microduct; ar =anal ring; dset = dorsal seta; edd = enlargement of dorsal derm; mset = marginal setae; pvp = perivulvar pore; pop = preopercular pore; sp = simple pore; spp = spiracular pore; stgsp = stigmatic spine; vmic = ventral microduct; vset = ventral setae; vtbd = ventral tubular duct.
ScienceDex guides
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These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
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)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
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.