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.
90
datasets available to search
ShareScore release 0.7.1
Dataset results
90 results for “herbaria”
Widespread Sampling Biases in Herbaria Revealed from Large-Scale Digitization 1656-2016
Non-random collecting practices may bias conclusions drawn from analyses of herbarium records. Recent efforts to fully digitize and mobilize regional floras offer a timely opportunity to assess commonalities and differences in herbarium sampling biases. We determined spatial, temporal, trait, phylogenetic, and collector biases in ~5 million herbarium records, representing three of the most complete digitized floras of the world: Australia (AU), South Africa (SA), and New England, USA (NE) We identified numerous shared and unique biases among these regions. Shared biases included specimens i) collected close to roads and herbaria; ii) collected more frequently during spring; iii) of threatened species collected less frequently; and iv) of close relatives collected in similar numbers. Regional differences included i) over-representation of graminoids in SA and AU and of annuals in AU; and ii) peak collection during the 1910s in NE, 1980s in SA, and 1990s in AU. Finally, in all regions, a disproportionately large percentage of specimens were collected by a few individuals. These mega-collectors, and their associated preferences and idiosyncrasies, may have shaped patterns of collection bias via ‘founder effects’. Studies using herbarium collections should account for sampling biases and future collecting efforts should avoid compounding these biases.
Fig. 13 in Bonpland and Humboldt specimens, field notes, and herbaria; new insights from a study of the monocotyledons collected in Venezuela
Fig. 13. – Example of labels associated with the Bonpland and Humboldt monocotyledon specimens at B-W. A. Bonpland label showing different handwritings (1) Bonpland, (2) Humboldt, (3) Willdenow, (4) D. F. L. von Schlechtendal; B. Bonpland label showing different handwritings (1) Bonpland, (2) Humboldt, (3) D. F. L. von Schlechtendal. [© Botanischer Garten und Botanisches Museum Berlin-Dahlem]
Fig. 15 in Bonpland and Humboldt specimens, field notes, and herbaria; new insights from a study of the monocotyledons collected in Venezuela
Fig. 15. – Monocotyledon specimen collected by Bonpland and Humboldt deposited in HAL. The specimen is an isotype of Scleria cyperina Kunth (Cyperaceae) collected in present-day Sucre state of Venezuela. Note D. F. C. von Schlechtendal's handwriting on the label (bottom left-hand corner of the specimen). [© Herbarium, Martin-Luther Universität, Halle-Wittenberg]
Fig. 8 in Bonpland and Humboldt specimens, field notes, and herbaria; new insights from a study of the monocotyledons collected in Venezuela
Fig. 8. – Representative specimen of the monocotyledon collection deposited in P-Bonpl. The example is Heliconia psittacorum L. f. (Heliconiaceae) collected in the region of Caripe, northeastern Venezuela. [© Herbarium, Muséum National d'Histoire Naturelle, Paris]
Fig. 7 in Bonpland and Humboldt specimens, field notes, and herbaria; new insights from a study of the monocotyledons collected in Venezuela
Fig. 7. – Main pathways by which monocotyledon specimens collected by Bonpland and Humboldt in Venezuela (1799-1800) were distributed to individuals and herbaria.
Fig. 10 in Bonpland and Humboldt specimens, field notes, and herbaria; new insights from a study of the monocotyledons collected in Venezuela
Fig. 10. – Representative specimen collected by Bonpland and Humboldt deposited in P. The example is Smilax cumanensis Willd. (Smilacaceae). Note Bonpland's handwriting on the original label (bottom left-hand corner of the specimen). [© Herbarium, Muséum National d'Histoire Naturelle, Paris]
Fig. 9 in Bonpland and Humboldt specimens, field notes, and herbaria; new insights from a study of the monocotyledons collected in Venezuela
Fig. 9. – Examples of labels associated with the monocotyledon specimens at P-Bonpl. A-B. Original labels with Bonpland's handwriting (i.e., collector's number and locality) and subsequent determinations made by Kunth; C-F. Replacement labels with only Kunth's handwriting. [© Herbarium, Muséum National d'Histoire Naturelle, Paris]
Fig. 6. – A in Bonpland and Humboldt specimens, field notes, and herbaria; new insights from a study of the monocotyledons collected in Venezuela
Fig. 6. – A page from the "Journal Botanique" of Bonpland and Humboldt. Humboldt's handwriting can be recognized on the left-hand side of the page (arrow 1); Bonpland's handwriting can be recognized on the right-hand side of the page (arrow 2). [© Bibliothèque Centrale, Muséum National d'Histoire Naturelle, Paris]
Fig. 4 in Bonpland and Humboldt specimens, field notes, and herbaria; new insights from a study of the monocotyledons collected in Venezuela
Fig. 4. – Extracts of D. F. L. von Schlechtendal's catalogue of B-W. The first column at left corresponds to the number under which the taxon is filed in the herbarium. A. List of Canna L. (Cannaceae) taxa in the herbarium; note the name "Humboldt" is associated with Canna glauca L.; B. List of Cenchrus L. (Poaceae) taxa in the herbarium. [© Botanischer Garten und Botanisches Museum Berlin-Dahlem]
Fig. 5 in Bonpland and Humboldt specimens, field notes, and herbaria; new insights from a study of the monocotyledons collected in Venezuela
Fig. 5. – Pages from the "Journal Botanique" of Bonpland and Humboldt. A. Left-hand page lists plants sent to Cavanilles, the arrow points to an annotation by Humboldt; right-hand page lists some plants gathered in the Canary Islands; B. First pages detailing the first collections made in Venezuela. [© Bibliothèque Centrale, Muséum National d'Histoire Naturelle, Paris]
Fig. 2 in Bonpland and Humboldt specimens, field notes, and herbaria; new insights from a study of the monocotyledons collected in Venezuela
Fig. 2. – Herbarium of the Muséum National d'Histoire Naturelle, Paris. A. General view of the main building of the herbarium; B. Representative specimens corresponding to the monocotyledon collection of P-Bonpl.
Fig. 3 in Bonpland and Humboldt specimens, field notes, and herbaria; new insights from a study of the monocotyledons collected in Venezuela
Fig. 3. – Herbarium of the Botanischer Garten und Botanisches Museum Berlin-Dahlem. A. General view of the museum building; B. Representative specimens corresponding to the monocotyledon collection of B-W.
Fig. 1 in Bonpland and Humboldt specimens, field notes, and herbaria; new insights from a study of the monocotyledons collected in Venezuela
Fig. 1. – Title page of Humboldt & al. "Nova Genera et Species Plantarum", vol.1. [© Conservatoire et Jardin botaniques de la Ville de Genève]
Fig. 12 in Bonpland and Humboldt specimens, field notes, and herbaria; new insights from a study of the monocotyledons collected in Venezuela
Fig. 12. – Representative specimen collected by Bonpland and Humboldt deposited in B-W. The example is Epidendrum atropurpureum Willd. (Orchidaceae). Note Bonpland's handwriting on the original label. Arrows point to D. F. L. von Schlechtendal's annotations at the top right-hand corner of the sheet with the species name and at the bottom right-hand corner with the word "Humboldt" and letter "W" (for Willdenow). [© Botanischer Garten und Botanisches Museum Berlin-Dahlem]
Fig. 14 in Bonpland and Humboldt specimens, field notes, and herbaria; new insights from a study of the monocotyledons collected in Venezuela
Fig. 14. – Monocotyledon specimen collected by Bonpland and Humboldt deposited in B. The specimen corresponds to Amaryllis nervosa Kunth, hom. illeg. (Amaryllidaceae) collected in present-day Aragua state of Venezuela. Note Kunth's handwriting on the label (bottom left-hand corner of the specimen). [© Botanischer Garten und Botanisches Museum Berlin-Dahlem]
Linked collectors and determiners for: United Herbaria of the University and ETH Zurich.
Natural history specimen data linked to collectors and determiners held within, "United Herbaria of the University and ETH Zurich". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="http://bionomia.net/dataset/064508e2-255e-4d82-9f13-05d73476cc03">https://bionomia.net/dataset/064508e2-255e-4d82-9f13-05d73476cc03</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/064508e2-255e-4d82-9f13-05d73476cc03">https://gbif.org/dataset/064508e2-255e-4d82-9f13-05d73476cc03</a>. Formatted as a Frictionless Data package.
Linked collectors and determiners for: SysTax - Herbaria.
Natural history specimen data linked to collectors and determiners held within, "SysTax - Herbaria". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/f4419c70-614f-11e2-897a-00145eb45e9a">https://bionomia.net/dataset/f4419c70-614f-11e2-897a-00145eb45e9a</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/f4419c70-614f-11e2-897a-00145eb45e9a">https://gbif.org/dataset/f4419c70-614f-11e2-897a-00145eb45e9a</a>. Formatted as a Frictionless Data package.
Linked collectors and determiners for: Family Primulaceae in Digital Herbaria of CSBG SB RAS (NS).
Natural history specimen data linked to collectors and determiners held within, "Family Primulaceae in Digital Herbaria of CSBG SB RAS (NS)". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/f8b3dfc3-e0d9-4173-a63b-436aedce0469">https://bionomia.net/dataset/f8b3dfc3-e0d9-4173-a63b-436aedce0469</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/f8b3dfc3-e0d9-4173-a63b-436aedce0469">https://gbif.org/dataset/f8b3dfc3-e0d9-4173-a63b-436aedce0469</a>. Formatted as a Frictionless Data package.
Linked collectors and determiners for: Harvard University Herbaria: All Records.
Natural history specimen data linked to collectors and determiners held within, "Harvard University Herbaria: All Records". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/861e6afe-f762-11e1-a439-00145eb45e9a">https://bionomia.net/dataset/861e6afe-f762-11e1-a439-00145eb45e9a</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/861e6afe-f762-11e1-a439-00145eb45e9a">https://gbif.org/dataset/861e6afe-f762-11e1-a439-00145eb45e9a</a>. Formatted as a Frictionless Data package.
Linked collectors and determiners for: Family Primulaceae in Digital Herbaria of CSBG SB RAS (NSK).
Natural history specimen data linked to collectors and determiners held within, "Family Primulaceae in Digital Herbaria of CSBG SB RAS (NSK)". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/769dbaf7-8238-43fa-9717-90973e41706d">https://bionomia.net/dataset/769dbaf7-8238-43fa-9717-90973e41706d</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/769dbaf7-8238-43fa-9717-90973e41706d">https://gbif.org/dataset/769dbaf7-8238-43fa-9717-90973e41706d</a>. Formatted as a Frictionless Data package.
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.