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.
1,015
datasets available to search
ShareScore release 0.9.0
Dataset results
1,015 results for “West Africa”
Figure 8. A in A phylogeny for African Pipistrellus species with the description of a new species from West Africa (Mammalia: Chiroptera)
Figure 8. A line drawing of the penis of Pi. simandouensis sp. nov. (holotype, ZFMK2008-0302) in ventral (left) and lateral (right) views. Scale bar = 4 mm.
Figure 7 in A phylogeny for African Pipistrellus species with the description of a new species from West Africa (Mammalia: Chiroptera)
Figure 7. Upper teeth of Pi. simandouensis (holotype, ZFMK2008-0302) showing: (A) the relatively small-sized outer incisors, which are less than half the length of the inner incisors and (B) the moderately sized anterior premolar which is situated in the toothrow and hence creating a small gap between C and P2 (photographs © Jan Decher).
Figure 5 in A phylogeny for African Pipistrellus species with the description of a new species from West Africa (Mammalia: Chiroptera)
Figure 5. Tragi of Pi. simandouensis, Pi. nanulus, Pi. hesperidus and Pi. rusticus. Arrows indicate the position of the indentation/notch and basal projection of the outer margin in each species. The museum number of each specimen photographed is provided below the name.
Figure 3. A in A phylogeny for African Pipistrellus species with the description of a new species from West Africa (Mammalia: Chiroptera)
Figure 3. A principal components analysis (PCA) graph plotting the first two components for craniodental measurements of African Pipistrellus species including Pa. grandidieri. See Supporting Information (Table S3) for the variables used in this analysis and the loadings on PC1 and PC2.
Figure 2. A in A phylogeny for African Pipistrellus species with the description of a new species from West Africa (Mammalia: Chiroptera)
Figure 2. A, maximum likelihood tree of COI sequences based on the Hasegawa-Kishino-Yano model conducted in MEGA7. The tree with the highest log likelihood (-5569.83) is shown. The percentage of trees in which the associated taxa clustered together is shown next to the branches. B, maximum likelihood tree of Cytb based on the Tamura-Nei substitution model conducted in MEGA7. The tree with the highest log likelihood (-5599.78) is shown. The percentage of trees in which the associated taxa clustered together is shown next to the branches.
Data from: Spatial spread of the West Africa Ebola epidemic
Controlling Ebola outbreaks and planning an effective response to future emerging diseases are enhanced by understanding the role of geography in transmission. Here we show how epidemic expansion may be predicted by evaluating the relative probability of alternative epidemic paths. We compared multiple candidate models to characterize the spatial network over which the 2013–2015 West Africa epidemic of Ebola virus spread and estimate the effects of geographical covariates on transmission during peak spread. The best model was a generalized gravity model where the probability of transmission between locations depended on distance, population density and international border closures between Guinea, Liberia and Sierra Leone and neighbouring countries. This model out-performed alternative models based on diffusive spread, the force of infection, mobility estimated from cell phone records and other hypothesized patterns of spread. These findings highlight the importance of integrated geography to epidemic expansion and may contribute to identifying both the most vulnerable unaffected areas and locations of maximum intervention value.
Data from: Marine communities on oil platforms in Gabon, West Africa: high biodiversity oases in a low biodiversity environment
The marine biodiversity of Gabon, West Africa has not been well studied and is largely unknown. Our examination of marine communities associated with oil platforms in Gabon is the first scientific investigation of these structures and highlights the unique ecosystems associated with them. A number of species previously unknown to Gabonese waters were recorded during our surveys on these platforms. Clear distinctions in benthic communities were observed between older, larger platforms in the north and newer platforms to the south or closer to shore. The former were dominated by a solitary cup coral, Tubastraea sp., whereas the latter were dominated by the barnacle Megabalanus tintinnabulum, but with more diverse benthic assemblages compared to the northerly platforms. Previous work documented the presence of limited zooxanthellated scleractinian corals on natural rocky substrate in Gabon but none were recorded on platforms. Total estimated fish biomass on these platforms exceeded one ton at some locations and was dominated by barracuda (Sphyraena spp.), jacks (Carangids), and rainbow runner (Elagatis bipinnulata). Thirty-four percent of fish species observed on these platforms are new records for Gabon and 6% are new to tropical West Africa. Fish assemblages closely associated with platforms had distinct amphi-Atlantic affinities and platforms likely extend the distribution of these species into coastal West Africa. At least one potential invasive species, the snowflake coral (Carijoa riisei), was observed on the platforms. Oil platforms may act as stepping stones, increasing regional biodiversity and production but they may also be vectors for invasive species. Gabon is a world leader in terrestrial conservation with a network of protected areas covering >10% of the country. Oil exploration and biodiversity conservation currently co-exist in terrestrial and freshwater ecosystems in Gabon. Efforts to increase marine protection in Gabon may benefit by including oil platforms in the marine protected area design process.
Data from: New evidence for hybrid zones of forest and savanna elephants in Central and West Africa
The African elephant consists of forest and savanna subspecies. Both subspecies are highly endangered due to severe poaching and habitat loss, and knowledge of their population structure is vital to their conservation. Previous studies have demonstrated marked genetic and morphological differences between forest and savanna elephants and despite extensive sampling, genetic evidence of hybridization between them has been restricted largely to a few hybrids in the Garamba region of northeastern Democratic Republic of Congo (DRC). Here we present new genetic data on hybridization from previously unsampled areas of Africa. Novel statistical methods applied to these data identify 46 hybrid samples - many more than have been previously identified - only two of which are from the Garamba region. The remaining 44 are from three other geographically-distinct locations: a major hybrid zone along the border of the DRC and Uganda, a second potential hybrid zone in Central African Republic, and a smaller fraction of hybrids in the Pendjari-Arli complex of West Africa. Most of the hybrids show evidence of interbreeding over more than one generation, demonstrating that hybrids are fertile. Mitochondrial and Y chromosome data demonstrate that the hybridization is bidirectional, involving males and females from both subspecies. We hypothesize that the hybrid zones may have been facilitated by poaching and habitat modification. The localized geography and rarity of hybrid zones, their possible facilitation from human pressures, and the high divergence and genetic distinctness of forest and savanna elephants throughout their ranges, are consistent with calls for separate species classification.
FIGURE 37 in On the diversity of Terebellides (Annelida, Trichobranchidae) in West Africa, seven new species and the redescription of T. africana Augener, 1918 stat. prom.
FIGURE 37. Body staining patterns—following Schüller & Hutchings (2010)—in ventral view of the species described in this work; chaetigers indicated in Arabic numbers.
FIGURE 33 in On the diversity of Terebellides (Annelida, Trichobranchidae) in West Africa, seven new species and the redescription of T. africana Augener, 1918 stat. prom.
FIGURE 33. (A–B) Terebellides ramili sp. nov. Stereomicroscope images of holotype MNCN 16.01/186013. (A) full specimen, right lateral view; (B) anterior end, left lateral view. Terebellides af. ramili (NHMD-231438): (C) anterior end, right lateral view. Abbreviations: bldl—branchial left dorsal lobe; blvl—branchial left ventral lobe; brdl—branchial right dorsal lobe; brvl—branchial right ventral lobe; bvltf—branchial ventral lobe terminal filament; gc—geniculate chaetae; loli—lower lip; ooc—oocytes; SG—segment; TC—thoracic chaetiger; tm—tentacular membrane.
FIGURE 36 in On the diversity of Terebellides (Annelida, Trichobranchidae) in West Africa, seven new species and the redescription of T. africana Augener, 1918 stat. prom.
FIGURE 36. Summary of the size, number and arrangement of denticles in uncinal capitium and its relative length in relation to rostrum, corresponding to the types of thoracic uncini, as defined for the species of Terebellides described in this work.
FIGURE 34 in On the diversity of Terebellides (Annelida, Trichobranchidae) in West Africa, seven new species and the redescription of T. africana Augener, 1918 stat. prom.
FIGURE 34. Terebellides ramili sp. nov. SEM micrographs of the paratype MNCN 16.01/18614. (A) TC6 geniculate chaetae; (B–D) thoracic uncini in latero-frontal, lateral and upper view; (E–F) abdominal uncini, fronto-lateral view. Circle in (D) showing number of teeth on capitium. Abbreviations: cap—capitium; ros—rostrum.
FIGURE 31 in On the diversity of Terebellides (Annelida, Trichobranchidae) in West Africa, seven new species and the redescription of T. africana Augener, 1918 stat. prom.
FIGURE 31. Terebellides nkossa sp. nov. SEM micrographs of the paratype MNCN 16.01/18601. (A) TC6, two geniculate chaetae; (B) row of thoracic uncini row and detail of geniculate chaeta capitium (framed in (A); (C) two thoracic uncini, lateroupper view; (D) three abdominal uncinigers in dorsal view; (E-F) abdominal uncini, anterior and fronto-upper view. Circles in (C) and (F) showing number of teeth on capitium. Abbreviations: cap—capitium; ros—rostrum.
FIGURE 29 in On the diversity of Terebellides (Annelida, Trichobranchidae) in West Africa, seven new species and the redescription of T. africana Augener, 1918 stat. prom.
FIGURE 29. Terebellides nkossa sp. nov. Stereomicroscope images. Holotype (MNCN 16.01/18594): (A) anterior end, left lateral view. Paratypes (MNCN 16.01/18595 and MNCN16.01/18602): (B) anterior end, ventral view; (C) anterior half, right latero-ventral view; (D) anterior end, right lateral view. Abbreviations: bldl—branchial left dorsal lobe; blvl—branchial left ventral lobe; brdl—branchial right dorsal lobe; fst—fore stomach; hst—hind stomach; int—intestine; latlap—lateral lappet; loli—lower lip; ooc—oocytes; SG—segment; TC—thoracic chaetiger; tm—tentacular membrane.
FIGURE 27 in On the diversity of Terebellides (Annelida, Trichobranchidae) in West Africa, seven new species and the redescription of T. africana Augener, 1918 stat. prom.
FIGURE 27. Terebellides longiseta sp. nov. SEM micrographs of the paratype MNCN 16.01/18591. (A) three thoracic uncini, lateral view; (B) one thoracic uncinus, frontal view; (C–D) several abdominal uncini in frontal and lateral view. Circles in (B) and (C) showing number of teeth on capitium. Abbreviations: cap—capitium; ros—rostrum.
FIGURE 26 in On the diversity of Terebellides (Annelida, Trichobranchidae) in West Africa, seven new species and the redescription of T. africana Augener, 1918 stat. prom.
FIGURE 26. Terebellides longiseta sp. nov. SEM micrographs of the paratype MNCN 16.01/18591. (A) anterior end, left lateral view, composite image of two photographs; (B) dorsal branchial lobe, posterior end; (C) ventral branchial lobe, detail; (D) branchial lamellae ciliature, detail. Abbreviations: bcp—branchial ciliated papilla; bdltp—branchial dorsal lobe terminal papilla; blvl—branchial left ventral lobe; brdl—branchial right dorsal lobe; bvltf—branchial ventral lobe terminal filament; cr—ciliary row; TN—thoracic notopodium; tnc—thoracic notopodial chaetae.
FIGURE 24 in On the diversity of Terebellides (Annelida, Trichobranchidae) in West Africa, seven new species and the redescription of T. africana Augener, 1918 stat. prom.
FIGURE 24. Terebellides kirkegaardi sp. nov. SEM micrographs of the paratype NHMD-636925. (A) anterior end, left lateral view; (B) TC1–TC2 notopodia, lateral view; (C) TC6 geniculate chaetae; (D) geniculate chaeta capitium; (E–G) thoracic uncini, upper view. Circles in (F)–(G) showing number of teeth on capitium. Abbreviations: abl—anterior branchial lobe; bldl—branchial left dorsal lobe; blvl—branchial left ventral lobe; bst—branchial stalk; SG—segment; tm—tentacular membrane; TNthoracic notopodium; TU—thoracic unciniger.
FIGURE 25 in On the diversity of Terebellides (Annelida, Trichobranchidae) in West Africa, seven new species and the redescription of T. africana Augener, 1918 stat. prom.
FIGURE 25. Terebellides longiseta sp. nov. Stereomicroscope images. Holotype (NHMD-231459): (A) anterior end, right lateral view; (B) branchial lobes and TC1–2 notopodia, right lateral view. Paratype (NHMD-231448): (C) anterior end, left lateral view. Holotype (NHMD-231459): (D) branchiae, postero-dorsal view. Abbreviations: abl—anterior branchial lobe; bldl—branchial left dorsal lobe; TN—thoracic notopodium.
FIGURE 28 in On the diversity of Terebellides (Annelida, Trichobranchidae) in West Africa, seven new species and the redescription of T. africana Augener, 1918 stat. prom.
FIGURE 28. Terebellides nkossa sp. nov. (holotype, MNCN 16.01/18594): (A) anterior end, left lateral view and detail of branchiae. Terebellides ramili sp. nov. (holotype, MNCN 16.01/18615): (B) anterior end, left lateral view and detail of branchiae. Abbreviations: bldl—branchial left dorsal lobe; blvl—branchial left ventral lobe; brdl—branchial right dorsal lobe; brvl—branchial right ventral lobe; bvltf—branchial ventral lobe terminal filament; TC—thoracic chaetiger.
FIGURE 30 in On the diversity of Terebellides (Annelida, Trichobranchidae) in West Africa, seven new species and the redescription of T. africana Augener, 1918 stat. prom.
FIGURE 30. Terebellides nkossa sp. nov. SEM micrographs of the paratype MNCN 16.01/18596. (A) anterior end, left dorsolateral view; (B) branchial posterior ventral lobes, ventral view; (C) several dorsal branchial lamellae, inner side, showing ciliature pattern; (D) the same, rows of cilia, detail; (E) TC1–TC5, left lateral view; (F) TC1 nephridial opening. Abbreviations: bct—branchial ciliated tuft; bldl—branchial left dorsal lobe; blvl—branchial left ventral lobe; brdl—branchial right dorsal lobe; brvl—branchial right ventral lobe; bst—branchial stalk; bt—buccal tentacle; bvltf—branchial ventral lobe terminal filament; cr—ciliary row; latlap—lateral lappet; loli—lower lip; no—nephridial opening; np—nephridial papilla; TN—thoracic notopodium; tndp—thoracic notopodium dorsal papilla.
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.