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.
446
datasets available to search
ShareScore release 0.9.0
Dataset results
446 results for “Mascarenes”
Detecting local variations across metazoan communities in backreef depressions of Reunion Island (Mascarene Archipelago) through environmental DNA survey
<p>The back-reef depressions, or lagoons, of Reunion Island (western Indian Ocean) host a high abundance of organisms living amongst the coral reefs and are critical sites for artisanal fishing, tourism, and shoreline stability for the island. Over time, increasing degradation of Reunionese reefs has been observed due to overexploitation, beach erosion and eutrophication. Efforts to mitigate the impact of these pressures on aquatic organisms include biodiversity surveys primarily performed through visual censuses that can be logistically complex and may unintentionally overlook organisms. Surveys integrating environmental DNA (eDNA) collections have provided rapid biodiversity assessments, while helping to circumvent some limitations of visual surveys. The present study describes the results of an exploratory eDNA survey, which aims to characterize metazoan communities of four Reunionese lagoons located along the west coast of the island. As eDNA surveys first require deliberate study design and optimization for each new context, we sought to establish a modernized workflow implementing specialized equipment to collect and preserve samples to facilitate future studies in these lagoons. During the austral summer of 2023, samples were pumped directly from surface and bottom depths at each site through self-preserving filters which were then processed for DNA metabarcoding using regions of the 12S ribosomal RNA (12S), small ribosomal subunit 18S (18S) and Cytochrome Oxidase I (COI) genes. The survey detected high species richness that varied by site, and in a single collection period, recovered the presence of 60 teleost families and numerous invertebrate taxa, including members of the coral faunal community that are less studied in Reunion. Distinct biological communities were observed at each site, and within a single lagoon, suggesting that these differences are due to site-specific factors (e.g., environmental variables, geographic distance, etc.). Although continued protocol optimization is needed, the present findings demonstrate the successful application of an eDNA-based survey for biodiversity assessment within Reunionese lagoons.</p>
FIG. 27 in A revision of Xylopia L. (Annonaceae): the species of Madagascar and the Mascarene islands
FIG. 27. — Xylopia sclerophylla, sp. nov., and X. retusa, sp. nov. A-K, X. sclerophylla, sp. nov.: A, leaves; B, leaf base, lower surface; C, flower, side view; D, flower bud, side view; E, inner petal, adaxial surface; F, outer petal, adaxial surface; G, monocarps; H, seed, side view; I, seed, view of micropylar end; J, stamen, abaxial view; K, outer staminode, abaxial view. L-R, X. retusa, sp. nov.: L, leaves; M, leaf base, abaxial surface; N, monocarps; O, seed, side view; P, seed, view of micropylar end; Q, outer petal, adaxial surface; R, inner petal, adaxial surface. A-K, from Capuron 20041_SF (OWU); L-N, from Capuron 28060_SF (B); O, P, from Ludovic & Rakotoarivony 212 (OWU); Q, R, from Rabevohitra et al. 5073 (OWU). Scale bars: A, G-I, L, N-P, 1 cm; B-D, M, 5 mm; E, F, Q, R, 3 mm; J, K, 1 mm.
FIG. 28 in A revision of Xylopia L. (Annonaceae): the species of Madagascar and the Mascarene islands
FIG. 28. — Distributions of Xylopia ambanjensis Cavaco & Keraudren, X. anomala, sp. nov., X. australis, sp. nov., X. beananensis Cavaco & Keraudren, X. bemarivensis Diels, X. buxifolia Baill., X. capuronii Cavaco & Keraudren, X. carinata, sp. nov., X. danguyella Ghesq. ex Cavaco & Keraudren, X. dielsii Cavaco & Keraudren, X. fananehanensis Cavaco & Keraudren, and X. flexuosa Diels on Madagascar.
FIG. 25 in A revision of Xylopia L. (Annonaceae): the species of Madagascar and the Mascarene islands
FIG. 25. — Xylopia longirostra, sp. nov., and X. marojejyana, sp. nov. A-E, X. longirostra, sp. nov.: A, habit; B, close-up of rolled apex of developing leaf; C, immature flower bud, side view; D, monocarp, side view; E, seed, side view. F-H, X. marojejyana, sp. nov.: F, habit; G, monocarp, adaxial view; H, petiole and twig, side view. A, D, E, from Lowry et al. 6064 (OWU); B, from Razakamalala 266 (NY); C, from Andrianjafy et al. 120 (MO); F-H, based on Miller & Randrianasolo 4423 (MO). Scale bars: A, D-G, 1 cm; B, H, 2 mm; C, 1 mm.
FIG. 19 in A revision of Xylopia L. (Annonaceae): the species of Madagascar and the Mascarene islands
FIG. 19. — Xylopia ghesquiereana Cavaco & Keraudren and X. carinata, sp. nov.: A-I, X. ghesquiereana; A, habit; B, flower bud, side view; C, close-up of leaf base; D, fertile stamen; E, outer staminode, abaxial view; F, inner staminode, abaxial view; G, stigma, side view; H, inner petal, adaxial view, slightly oblique; I, outer petal, adaxial view; J-Q, X. carinata, sp. nov.; J, leaf, adaxial view; K, side view of flower bud and abaxial view of leaf base; L, outer staminode, abaxial view; M, N, fertile stamens, abaxial view; O, stigmas, with inner staminodes adhering at the base, apical portions of ovaries, and rim of staminal cone, all in side view; P, inner petal, oblique view of adaxial surface; Q, outer petal, adaxial view. A-I, from R. N. 5440 bis (P); J, K, M, P, Q, from Capuron 22777 (P); L, N, O, from Capuron 22777 (A). Scale bars: A, J, 1 cm; B, C, H, I, K, P, Q, 5 mm; D-G, L-O, 1 mm.
FIG. 18 in A revision of Xylopia L. (Annonaceae): the species of Madagascar and the Mascarene islands
FIG. 18. — Plate showing illustration of Xylopia capuronii Cavaco & Keraudren (A-D), reproduced from Cavaco & Keraudren (1958).
FIG. 16. — A in A revision of Xylopia L. (Annonaceae): the species of Madagascar and the Mascarene islands
FIG. 16. — A, Fruit of X. australis, sp. nov. (Rakotovao 4575); B, flower of X. bemarivensis Diels (Nusbaumer 8139); C, flower bud of X. galokothamna, sp. nov. (Ratovoson 2065); D, fruit of X. galokothamna, sp. nov. (Ratovoson 2065); E, fruit of plant resembling X. galokothamna, sp. nov., but with different pericarp pattern (see text) (Buerki 20); F, monocarps and leafy shoots of X. lastelliana Baill. (Rakotovao 4603); G, flowers of X. australis, sp. nov. (Schatz 2641); H, monocarps of X. kalabenonensis D.M.Johnson, Deroin, & Callmander (Razafitsalama et al. 1041). Photos: A, F, C. Rakotovao; B, L. Nusbaumer; C, D, F. Ratovoson; E, M. W. Callmander; G, G. E. Schatz; H, J. Razafitsalama. A, C-H, used under the terms of the Creative Commons license for Tropicos, the botanical information system at the Missouri Botanical Garden; B, L. Nusbaumer (© Conservatoire et Jardin botaniques de la Ville de Genève).
FIG. 11 in A revision of Xylopia L. (Annonaceae): the species of Madagascar and the Mascarene islands
FIG. 11. — Xylopia ravelonarivoi, sp. nov.: A, habit; B, leaf base, oblique adaxial view to show decurrence of leaf blade on petiole; C, flower bud, side view; D, leaf; E, fruit; F, fertile stamen, abaxial view; G, outer staminode, abaxial view; H, adaxial staminode, abaxial view; I, outer petal, adaxial view; J, inner petal, adaxial view; K, seed, side view; L, seed, view of micropylar end. A, from Rakotondrajaona et al. 281 (MO); B, D, E, K, L, from Ravelonarivo et al. 4171 (MO); C, F-J, from Ravelonarivo et al. 3641 (MO). Scale bars: A, D, E, 1 cm; B, C, I-L, 5 mm; F-H, 1 mm.
FIG. 4 in A revision of Xylopia L. (Annonaceae): the species of Madagascar and the Mascarene islands
FIG. 4. — Elevational ranges in meters for the 30 Madagascar Xylopia L. species, with midpoint value indicated by an orange dot. Individual species are indicated by the first four letters of the specific epithet in all capital letters, except for combinations HUML and HUMR used to distinguish X. humblotiana Baill. and X. humbertii Ghesq. ex Cavaco & Keraudren, respectively.
Linked collectors and determiners for: A revision of Xylopia L. (Annonaceae): the species of Madagascar and the Mascarene islands.
Natural history specimen data linked to collectors and determiners held within, "A revision of Xylopia L. (Annonaceae): the species of Madagascar and the Mascarene islands". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/28f94b79-38d7-4c25-ac76-cf64809114fc">https://bionomia.net/dataset/28f94b79-38d7-4c25-ac76-cf64809114fc</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/28f94b79-38d7-4c25-ac76-cf64809114fc">https://gbif.org/dataset/28f94b79-38d7-4c25-ac76-cf64809114fc</a>. Formatted as a Frictionless Data package.
Linked collectors and determiners for: Synopsis of Pselaphinae (Coleoptera: Staphylinidae) of the Mascarene Islands, with description of a new species of Leiochrotella Jeannel, 1953 from Réunion.
Natural history specimen data linked to collectors and determiners held within, "Synopsis of Pselaphinae (Coleoptera: Staphylinidae) of the Mascarene Islands, with description of a new species of Leiochrotella Jeannel, 1953 from Réunion". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/0c6fc1dc-7274-4125-8a3a-2f1daa2970aa">https://bionomia.net/dataset/0c6fc1dc-7274-4125-8a3a-2f1daa2970aa</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/0c6fc1dc-7274-4125-8a3a-2f1daa2970aa">https://gbif.org/dataset/0c6fc1dc-7274-4125-8a3a-2f1daa2970aa</a>. Formatted as a Frictionless Data package.
Fig. 6 in A review of the fern genus Polystichum (Pteropsida: Dryopteridaceae) in Madagascar and the Mascarene region
Fig. 6. — Stipe and lamina paleae in Polystichum species. — Polystichum maevaranense: A, rachis palea; B, proliferous bud palea; C, apex of B showing the cellular structure. Humbert 15019 (P). — Polystichum pauciaculeatum: D, stipe palea. Leandri et al. s.n. (P); E, margin of D showing the cellular structure; F, lamina palea, abaxial surface. Humbert 11121 (P). — Polystichum tsaratananense: G, stipe palea; H, apex of G showing the cellular structure. Humbert & Capuron 25035 (P); I, lamina palea (abaxial surface); J, apex of I showing the cellular structure. Humbert 18144 (P). — Polystichum wilsonii: K, stipe palea; L-M, lamina palea, abaxial surface. K-L, Alluaud 241 (P); M, Esterhuysen 26699 (BOL).
Fig. 3 in A review of the fern genus Polystichum (Pteropsida: Dryopteridaceae) in Madagascar and the Mascarene region
Fig. 3. — Stipe and lamina paleae in Polystichum species. — Polystichum ammifolium: A, stipe palea, Boivin 822 (B); B, lamina palea (adaxial surface), Rakolomalala s.n. (P); C, basal part of B showing the cellular structure. — Polystichum crinulosum: D, stipe palea, s.coll. s.n. (P); E, apex of D showing the cellular structure; F, rachis palea, s.coll. s.n. (P); G, apex of F showing the cellular structure. — Polystichum kalambatitrense: H, stipe palea. Humbert 12158 (P); I, lamina palea (abaxial surface), Humbert 11914 (P). — Polystichum luctuosum: J, stipe palea. Roux 2268 (NBG); K, lamina palea (abaxial surface), McDonell 34 (BM).
Fig. 1 in A review of the fern genus Polystichum (Pteropsida: Dryopteridaceae) in Madagascar and the Mascarene region
Fig. 1. — Polystichum ammifolium: A, middle pinnae of lamina; B, abaxial surface of a basal acroscopic pinnule; C, rhizome. A-B, Cadet 1164 (P); C, Guého 11453 (P).
Fig. 12 in The genus Disperis (Orchidaceae) in Madagascar, the Comores, the Mascarenes and the Seychelles
Fig. 12. — Disperis lanceolata: A, flowering plant; B, flower; C, hood; D, dorsal sepal; E, lateral sepal; F. petal; G, lip. (A-F, Botoalina, RN 3758, P; G, Bosser 7951, P).
Fig. 9 in The genus Disperis (Orchidaceae) in Madagascar, the Comores, the Mascarenes and the Seychelles
Fig. 9. — Disperis erucifera: A, flowering plant; B, flower, side view; C, flower, front view; D, hood; E, lateral sepal; F, column and lip, front view; G, column and lip, side view; H, pollinarium. (Morat 3080, P).
Fig. 5 in The genus Disperis (Orchidaceae) in Madagascar, the Comores, the Mascarenes and the Seychelles
Fig. 5. — Disperis discifera var. borbonica: A, flowering plant; B, flower and bract; C, hood, front view; D, dorsal sepal; E, lateral sepal; F, petal; G, column and lip, front view; H, column and lip side view; I, column and lip, back view; J, lip; K, pollinarium. (Goldblatt & Schatz 9014, K).
Fig. 4 in The genus Disperis (Orchidaceae) in Madagascar, the Comores, the Mascarenes and the Seychelles
Fig. 4. — Disperis latigaleata: A, flowering plant; B, dorsal sepal; C, lateral sepal; D, petal; E, column and lip, front view; F, column and lip, back view; G, lip. (Humbert 13440, P).
Fig. 15 in The genus Disperis (Orchidaceae) in Madagascar, the Comores, the Mascarenes and the Seychelles
Fig. 15. — Disperis falcatipetala: A, flowering plant; B, flower; C, dorsal sepal (dotted line shows where joined to column); D, lateral sepals; E, petal (dotted line shows where attached to column); F, column and lip, side view; G, column and lip, back view; H, lip. (Malcomber et al. 1413, MO).
Fig. 3 in The genus Disperis (Orchidaceae) in Madagascar, the Comores, the Mascarenes and the Seychelles
Fig. 3. — Disperis oppositifolia: A, flowering plant; B, flower and bract; C, hood, side view; D, dorsal sepal; E, lateral sepals; F, petal; G, column and lip, front view; H, column and lip, back view; I, column and lip, side view; J, lip, side view; K, lip, back view. (Schatz 2735, K).
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.