Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
1,865
datasets available to search
ShareScore release 0.9.0
Dataset results
1,865 results for “northeastern Brazil”
FIGURE 5 in Macro and microcharacters reveal a new species of Dichanthelium (Poaceae, Panicoideae) endemic to sandy soils of the Chapada Diamantina, Bahia, northeastern Brazil
FIGURE 5. Dichanthelium arenicola [Matos et al. 70 (HUEFS)]. A. Habit. B. Inflorescence. C. Detail of the apex of the leaf sheath and base of the blade. D. Spikelet, lateral view. E. Spikelet, dorsal view. F. Spikelet, ventral view. G. Upper palea with stamens and lodicules. H. Upper anthecium, ventral view. I. Upper anthecium, dorsal view J. Caryopsis, dorsal view. K. Caryopsis, ventral view.
FIGURE 4 in Macro and microcharacters reveal a new species of Dichanthelium (Poaceae, Panicoideae) endemic to sandy soils of the Chapada Diamantina, Bahia, northeastern Brazil
FIGURE 4. Leaf blade anatomy of Dichanthelium arenicola and D. cumbucana. A–D. Dichanthelium arenicola. A. Abaxial surface. B. Adaxial surface showing macro and micro hairs. C. Cross section, the arrow is pointing to the scar of a macrohair in D. arenicola [Matos et al. 70 (HUEFS)]. D. Bulliform cells with a macrohair in the central cell, adaxial surface. E–G. D. cumbucana [Harley et al. 15930 (HUEFS)]. E. Abaxial surface with microhairs. F. Adaxial surface with microhairs. G. Cross section. H–I. Prickle hairs. H. D. arenicola, transversal view. I. D. cumbucana, paradermic view. [Bc = bulliform cells; Tc = microhairs; Mh = macrohairs; Pr = Prickle hairs; VB = vascular bundle. Bars: 200 µm (except: F= 100 µm and I= 50 µm)]
FIGURE 1 in Macro and microcharacters reveal a new species of Dichanthelium (Poaceae, Panicoideae) endemic to sandy soils of the Chapada Diamantina, Bahia, northeastern Brazil
FIGURE 1. Habitat, habit and morphology of Dichanthelium arenicola and D. cumbucana. A–D. Dichanthelium arenicola. A–B. Habitat. Sand dunes surrounded by campo rupestre. C–D. Habit. C. Erect reproductive culms. D. Decumbent and ascending vegetative culms. E–F. D. cumbucana. E. Habitat and habit. Rocky environment near to Mucugezinho River in Palmeiras, Bahia. F. Vegetative and reproductive culms. (Photos by AOM, RPO and José Florêncio Oliveira)
FIGURES 9–16 in Four new species of Mesorhaga Schiner (Diptera: Dolichopodidae) from Northeastern Brazil, with an identification key to South American species of the genus
FIGURES 9–16. Mesorhaga gomesi sp. nov., Holotype ♂, left lateral view. 9, habitus, left lateral view; 10, head, left lateral view; 11, head, frontal view; 12, wing; 13, thorax, dorsal view; 14, post-abdomen, left lateral view; 15, terminalia left lateral view; 16, terminalia illustration left lateral view.
FIGURES 25–32 in Four new species of Mesorhaga Schiner (Diptera: Dolichopodidae) from Northeastern Brazil, with an identification key to South American species of the genus
FIGURES 25–32. Mesorhaga parnasete sp. nov., Holotype ♂, left lateral view. 25, habitus, left lateral view; 26, head, left lateral view; 27, head, frontal view; 28, wing; 29, thorax, dorsal view; 30, post-abdomen, left lateral view; 31, terminalia left lateral view; 32, terminalia illustration left lateral view.
FIGURES 1–8 in Four new species of Mesorhaga Schiner (Diptera: Dolichopodidae) from Northeastern Brazil, with an identification key to South American species of the genus
FIGURES 1–8. Mesorhaga danbickeli sp. nov., Holotype ♂, left lateral view. 1, habitus, left lateral view; 2, head, left lateral view; 3, head, frontal view; 4, wing; 5, thorax, dorsal view; 6, post-abdomen, left lateral view; 7, terminalia left lateral view; 8, terminalia illustration left lateral view. Abbreviations: C = costal vein; cerc = cercus; bm+dm = basal medial cell + dm = discal medial cell; dm–m = discal medial crossvein; ej apod = ejaculatory apodeme; epand = epandrium; epand for = foramen epandrial; hypd = hypandrium; ph = phallus; h = humeral crossvein; M1 = first branch of media; M4 = fourth branch of media; R1 = anterior branch of radius; R2+3 = second branch of radius; R4+5 = third branch of radius; Sc = subcostal vein; spm sac = sperm sac; sur = surstylus.
FIGURES 17–24 in Four new species of Mesorhaga Schiner (Diptera: Dolichopodidae) from Northeastern Brazil, with an identification key to South American species of the genus
FIGURES 17–24. Mesorhaga laetitia sp. nov., Holotype ♂, left lateral view. 17, habitus, left lateral view; 18, head, left lateral view; 19, head, frontal view; 20, wing; 21, thorax, dorsal view; 22, post-abdomen, left lateral view; 23, terminalia left lateral view; 24, terminalia illustration left lateral view.
Figure 2 in First albino white-eared opossums in the Caatinga, Northeastern Brazil: records of albinism in Didelphis albiventris (Lund, 1840)
Figure 2: Illustration of the two white eared opossum albino males. Above are images of the animals still alive, showing the coloring of the fur and eyes. Note the differential fur coloration of the live specimen JFV709, is due to flashlight exposure. Below is a board with images of the back, belly and side of the taxidermized animals.
Figure 1 in First record of Peropteryx leucoptera (Chiroptera, Emballonuridae) for the Caatinga of Northeastern Brazil and additional records for the Amazon and Atlantic Rainforest
Figure 1: Distribution of P. leucoptera in South America. Red stars indicate new records reported for the Caatinga biome and the state of Bahia in Northeastern Brazil: (1) Parque Nacional de Furna Feia, Mossoró, state of Rio Grande do Norte; (2) Vila de Patamuté, Gruta de Patamuté, Curaçá, state of Bahia; (3) Río Branco, Fazenda Bela Vista, Ilhéus, state of Bahia; (4) UHE Jirau, Mutum-Paraná, Porto Velho, state of Rondônia. White circles represent specimens examined in this study, black dots represent literature and database records. For numbers of localities, see Supplementary Material S2.
Figure 3 in First albino white-eared opossums in the Caatinga, Northeastern Brazil: records of albinism in Didelphis albiventris (Lund, 1840)
Figure 3: Images of the cells of individuals JVF699 and JVF 709 in division and of the karyotype assembled for each one.
Figure 4 in Morphological symmetry of Rhipidomys mastacalis (Mammalia, Rodentia, Cricetidae) in fragmented habitats of the Atlantic Forest in Northeastern Brazil: a study on the influence of the environment on an endemic species
Figure 4: Scatter diagrams based on a simple linear model (fluctuating asymmetry vs. vegetation cover), for four anatomical structures of Rhipidomys mastacalis three vegetation classes in Northeastern Brazil. The trend line is shown in black; the gray area represents the 95 % of confidence intervals.
Figure 1 in First albino white-eared opossums in the Caatinga, Northeastern Brazil: records of albinism in Didelphis albiventris (Lund, 1840)
Figure 1: Location map of our albinism records in Didelphis albiventris and other albinism records in the genus Didelphis in South American. In addition, we also illustrate the known records of leucism for Didelphis species.
Figure 2 in First record of Peropteryx leucoptera (Chiroptera, Emballonuridae) for the Caatinga of Northeastern Brazil and additional records for the Amazon and Atlantic Rainforest
Figure 2: Specimens of P. leucoptera representing the first records of the species for the Caatinga biome and Bahia state (Brazil). CMARF 320 skull in dorsal view (A), ventral view (B) and lateral view (C), mandible in lateral view (D), UFMG 4716 skin in dorsal (E) and ventral view (F).
Figure 1 in Morphological symmetry of Rhipidomys mastacalis (Mammalia, Rodentia, Cricetidae) in fragmented habitats of the Atlantic Forest in Northeastern Brazil: a study on the influence of the environment on an endemic species
Figure 1: Map of Northeastern Brazil, showing the geographical location of the Rhipidomys mastacalis samples selected for this study.
Figure 3 in Morphological symmetry of Rhipidomys mastacalis (Mammalia, Rodentia, Cricetidae) in fragmented habitats of the Atlantic Forest in Northeastern Brazil: a study on the influence of the environment on an endemic species
Figure 3: Box plot comparing the fluctuating asymmetry (FA) in Rhipidomys mastacalis from three vegetation classes in Northeastern Brazil. (A) Skulls, (B) mandibles, (C) scapulae,and (D) pelvis. The horizontal lines outside the boxes represent the smallest and largest variance for each population, and the horizontal line inside each box represents the mean value.
Figure 2 in Morphological symmetry of Rhipidomys mastacalis (Mammalia, Rodentia, Cricetidae) in fragmented habitats of the Atlantic Forest in Northeastern Brazil: a study on the influence of the environment on an endemic species
Figure 2: Anatomical structures (left and right), showing the location of morphological landmarks in a specimen of Rhipidomys mastacalis (CMARF–1701) from Brazil. (A) Occlusal view of skulls, (B) mandibles, (C) scapulae, and (D) pelvis.
Table 5 in Three new species of Spongiopsyllus Johnsson, 2000 (Copepoda: Siphonostomatoida: Entomolepididae) associated with Aplysina cauliformis (Carter, 1882) (Porifera: Demospongiae) from Todos-os-Santos Bay, Northeastern Brazil
<p><b>Table 5.</b> Hosts of Entomolepididae Brady, 1899.</p><table><tbody><tr><th>Species of Entomolepididae Brady, 1899</th><th><b>Hosts</b></th></tr></tbody><tbody><tr><th><i>Entomolepis hamondi</i> McKinnon, 1988</th><td>Tunicata Lamarck, 1816 (Chordata Dallas, 1875)</td></tr><tr><th><i>Entomolepis ovalis</i> Brady, 1899</th><td>mud</td></tr><tr><th><i>Entomopsyllus adriae</i> (Eiselt, 1959)</th><td><i>Aplysina aerophoba</i> (Nardo, 1833) (Porifera Grant, 1836) <i>Aplysina cavernicola</i> (Vacelet, 1959) (Porifera)</td></tr><tr><th><i>Entomopsyllus brevicaudatus</i> Lee & Kim 2017</th><td>unidentified sponges (Porifera)</td></tr><tr><th><i>Entomopsyllus nichollsi</i> McKinnon, 1988</th><td>plankton (unknown)</td></tr><tr><th><i>Entomopsyllus stocki</i> Kim, 2004</th><td><i>Tubipora musica</i> Linnaeus, 1758 (Cnidaria Hatschek, 1888)</td></tr><tr><th><i>Entomopsyllus takara</i> Uyeno & Johnsson, 2018</th><td><i>Heliopora coerulea</i> (Pallas, 1766) (Cnidaria) <i>Distichopora violacea</i> (Pallas, 1766) (Cnidaria)</td></tr><tr><th><i>Lepeopsyllus ovalis</i> Thompson & Scott, 1903</th><td>general invertebrates</td></tr><tr><th><i>Lepeopsyllus typicus</i> Thompson & Scott, 1903</th><td>oyster washings (Mollusca Cuvier, 1797)</td></tr><tr><th><i>Paralepeopsyllus dambayensis</i> Lee & Kim, 2017</th><td>unidentified sponges (Porifera)</td></tr><tr><th><i>Paralepeopsyllus leei</i> Lee & Kim, 2017</th><td>unidentified sponges (Porifera)</td></tr><tr><th><i>Paralepeopsyllus mannarensis</i> Ummerkutty, 1960</th><td>sponges (Porifera) crinoids (Echinodermata Bruguière, 1791 [ex Klein, 1734])</td></tr><tr><th><i>Parmulella emarginata</i> Stock, 1992</th><td><i>Chondrilla nucula</i> Schmidt, 1862 (Porifera)</td></tr><tr><th><i>Parmulodes verrucosa</i> Wilson, 1944</th><td><i>Chondrilla nucula</i> Schmidt, 1862 (Porifera)</td></tr><tr><th><i>Parmulopsyllus iamarinoi</i> Borges <i>et al</i>., 2021</th><td><i>Aplysina cauliformis</i> (Carter, 1882) (Porifera)</td></tr><tr><th><i>Neoparmulella periperiensis</i> Farias <i>et al</i>., 2020</th><td><i>Phyllogorgia dilatata</i> (Esper, 1806) (Cnidaria)</td></tr><tr><th><i>Spongiopsyllus adventicius</i> Johnsson, 2000</th><td><i>Aplysina</i> Nardo, 1834 (Porifera) <i>Dysidea janiae</i> (Duchassaing & Michelotti, 1864) (Porifera) <i>Monanchora</i> Carter, 1883 (Porifera)</td></tr><tr><th><i>Spongiopsyllus aramisi</i> sp nov.</th><td><i>Aplysina cauliformis</i> (Carter, 1882) (Porifera)</td></tr><tr><th><i>Spongiopsyllus athosi</i> sp nov.</th><td><i>Aplysina cauliformis</i> (Carter, 1882) (Porifera)</td></tr><tr><th><i>Spongiopsyllus atypicus</i> Canário <i>et al</i>., 2019</th><td><i>Aplysina insularis</i> (Duchassaing & Michelotti, 1864) (Porifera)</td></tr><tr><th><i>Spongiopsyllus intermedius</i> Borges <i>et al</i>., 2021</th><td><i>Aplysina solangeae</i> Pinheiro, Hajdu & Custódio, 2007 (Porifera)</td></tr><tr><th><i>Spongiopsyllus porthosi</i> sp nov.</th><td><i>Aplysina cauliformis</i> (Carter, 1882) (Porifera)</td></tr><tr><th>Sp <i>ongiopsyllus</i> <i>redactus</i> Canario <i>et al</i>., 2012</th><td><i>Mussismilia hispida</i> (Verrill, 1901) (Cnidaria)</td></tr></tbody></table>
FIGURE 1 in Timea bioxyasterina sp.n., a new species from the Northeastern coast of Brazil (Demospongiae, Hadromerida)
FIGURE 1. Map showing the collecting area, on the tropical Atlantic coast of South America. The type locality is shown in detail, off the coast of the State of Maranhão (Brazil).
FIGURES 1–3 in Two new species of Opheliidae (Annelida: Polychaeta): Euzonus papillatus sp. n. from a northeastern Brazilian sandy beach and Euzonus mammillatus sp. n. from the continental shelf of southeastern Brazil
FIGURES 1–3. Euzonus papillatus sp. n., NE Brazil: 1. Holotype (MCEM 1617), right lateral view, posterior end contracted, sand grains visible; 2. paratype (MCEM 1620), left lateral view of extended posterior end, real length of chaetae not shown; 3. holotype, detail of subterminal region of chaetae of abranchiate posterior chaetigers showing knob (arrows).
FIGURE 3 in Timea bioxyasterina sp.n., a new species from the Northeastern coast of Brazil (Demospongiae, Hadromerida)
FIGURE 3. Timea bioxyasterina sp. nov. (Holotype, MNRJ 7984). Spicules: a. Tylostyles and oxyasters I, II (Scale bar = 10mm); b. Oxyasters I and II (Scale bar = 10mm); c. Oxyaster II and tylaster (in detail; Scale bar = 5mm). d. Tylasters (in detail; Scale bar = 1mm).
ScienceDex guides
Understand access before you commit
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.