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1,073 results for “taxon”
Fig. 10 in A New Gobiosuchid Crocodyliform Taxon from the Cretaceous of Mongolia
Fig. 10. Posterior cervical vertebra of Zaraasuchus shepardi IGM 100/1321 in (A) ventral view;
Fig. 4 in A New Gobiosuchid Crocodyliform Taxon from the Cretaceous of Mongolia
Fig. 4. Ventral surface of frontals of Zaraasuchus shepardi IGM 100/1321.
Data from: Early diversification dynamics in a highly successful insular plant taxon are consistent with the general dynamic model of oceanic island biogeography
<p>The general dynamic model (GDM) of oceanic island biogeography views oceanic islands predominantly as sinks rather than sources of dispersing lineages. To test this, we conducted a biogeographic analysis of a highly successful insular plant taxon, <em>Cyrtandra </em>and inferred directionality of dispersal and founder events throughout the four biogeographical units of the Indo-Australian Archipelago (IAA), namely Sunda, Wallacea, Philippines, and Sahul. Sunda was recovered as the major source area, followed by Wallacea, a system of oceanic islands. The relatively high number of events originating from Wallacea is attributed to its central location in the IAA and its complex geological history selecting for increased dispersibility. We also tested if diversification dynamics in <em>Cyrtandra </em>follow predictions of adaptive radiation, which is the dominant process as per the GDM. Diversification dynamics of dispersing lineages of <em>Cyrtandra</em> in the Southeast Asian grade showed early bursts followed by a plateau, which is consistent with adaptive radiation. We did not detect signals of diversity-dependent diversification, and this is attributed to Southeast Asian cyrtandras<em> </em>occupying various niche spaces, evident by their wide morphological range in habit and floral characters. The Pacific clade, which arrived at the immaturity phase of the Pacific Islands, showed diversification dynamics predicted by the Island Immaturity Speciation Pulse (IISP) model, wherein rates increase exponentially, and their morphological range is controlled by the least action effect favoring woodiness and fleshy fruits. Our study provides a first step toward a framework for investigating diversification dynamics as predicted by the GDM in highly successful insular taxa.</p>
FIG. 6 in Liste commentée des Saturniidae (Lepidoptera, Bombycoidea) de Guyane, avec la liste des taxons récoltés au Mitaraka (extrême sud-ouest guyanais)
FIG. 6. — Hylesiopsis festiva Bouvier, 1929 ♂, Guyane, Camopi, Mont Itoupé, Coll. FB (Env. 55 mm).
Fig. 1 in Typification des noms de taxons corses de l'herbier Burnat (G-BU)
Fig. 1. - Lectotype de Alchemilla alpina var. burnatiana Buser de l'herbier G-BU.
Fig. 2 in Typification des noms de taxons corses de l'herbier Burnat (G-BU)
Fig. 2. - Lectotype de Potentilla procumbens subsp. nesogenes Briq. de l'herbier G-BU.
Taxon Name Mapping for Nomer
<p>Taxon Name Mapping for Nomer generated from GBIF/iDiBio interaction records.</p>
Testing hypotheses of hybrid taxon formation in the shrubby beardtongues (Penstemon subgenus Dasanthera)
<p class="MsoNormal"><em><span>Premise</span></em></p> <p class="MsoNormal"><span>Hybridization is increasingly being identified in the genomes of species across the tree of life. This has led to a general recognition that hybridization plays an important role in the generation of species diversity. While hybridization may increase species diversity directly via the formation of new taxa through hybrid speciation, it may also act indirectly via the exchange of phenotypic and genetic variance between species, which may in turn stimulate future speciation events.</span></p> <p class="MsoNormal"><span> </span></p> <p class="MsoNormal"><em><span>Methods</span></em></p> <p class="MsoNormal"><span>Using high-throughput sequence data, we resolve phylogenetic relationships and investigate the role of hybridization as a diversification mechanism in the shrubby beardtongues (<em>Penstemon </em>subgenus <em>Dasanthera</em>), a group of North American wildflowers that has undergone a recent and rapid adaptive radiation. Specifically, we test four hypotheses of hybrid taxon formation resulting from hybridization between <em>P. davidsonii</em> and <em>P. fruticosus</em>.</span></p> <p class="MsoNormal"><span> </span></p> <p class="MsoNormal"><em><span>Key Results</span></em></p> <p class="MsoNormal"><span>Species tree inference supports the monophyly of subgenus <em>Dasanthera</em> and elucidates relationships between taxa distributed in the Cascades and Sierra Nevada Mountains. Results also provide evidence of gene flow between <em>P. davidsonii </em>and <em>P. fruticosus</em> and support at least one hybrid origin hypothesis (<em>P. davidsonii</em> var. <em>menziesii</em>) in a region of contemporary distributional overlap. Hybridization may have also been facilitated by historical overlap in geographic distribution caused by species' responses to climatic changes during the Pleistocene.</span></p> <p class="MsoNormal"><span> </span></p> <p class="MsoNormal"><em><span>Conclusions</span></em></p> <p class="MsoNormal"><span>Our results support a history of hybridization between focal taxa in a rapidly radiating clade of plants and more broadly contribute to our growing understanding of the role of hybridization as a diversification mechanism in plants.</span></p>
Fig. 4 in Importance et caractéristiques des taxons cyrno-continentaux, et analyse de leur absence hors de Corse
Fig. 4. – Comparaison de la proportion de présence dans les
Spatial Mapping of Mobile Genetic Elements and their Cognate Hosts in Complex Microbiomes - Identifying the host taxon of a previously undescribed plasmid
<p>We investigated the taxonomic association of an unknown plasmid within a plaque biofilm of a patient diagnosed with stage 3 periodontitis. We combined long- and short- read sequencing to identify a complete plasmid with minimal homology to any sequence in the RefSeq database. The plasmid carried several predicted genes for mobilization and toxin-antitoxin systems. We designed MGE-FISH probes for the plasmid and combined this MGE-FISH stain with an 18-genera HiPR-FISH panel.</p> <p>Images are labeled by collection time such that the laser order for a given field of view (fov) is: 488nm Lambda, 514nm Lambda, 561nm Lambda, 633nm Airyscan, 405nm Lambda. We used Flye (https://github.com/fenderglass/Flye) to assemble the plasmid using long read Nanopore sequencing only and we used OPERA-MS (https://github.com/CSB5/OPERA-MS) to do hybrid assembly with Illumina short reads and Nanopore long reads. The assemblies are in the fasta files and the reads that map to the assemblies are in the fastq files. </p>
Figure 2a in A procedure for taxon assessment based on morphological variation in European water frogs (Pelophylax esculentus complex)
Figure 2a. Correlations of each morphological character with the first 2 dimensions of the FAMD.
Data from: Taxon-specific hydrogen isotope signals in cultures and mesocosms facilitate ecosystem and hydroclimate reconstruction
<p>Phytoplankton play a key role in biogeochemical cycles, impacting atmospheric and aquatic chemistry, food webs, and water quality. However, it remains challenging to reconstruct changes in algal community composition throughout the geologic past, as existing proxies are suitable only for a subset of taxa and/or influenced by degradation. Here, we investigate if compound-specific hydrogen isotope ratios (δ<sup>2</sup>H values) of common algal lipids can serve as (paleo)ecological indicators. First, we grew 20 species of algae – representing cyanobacteria, diatoms, dinoflagellates, green algae, and cryptomonads – in batch cultures under identical conditions and measured δ<sup>2</sup>H values of their lipids. Despite identical source water δ<sup>2</sup>H values, lipid δ<sup>2</sup>H values ranged from -455 ‰ to -52 ‰, and clustered according to taxonomic groups and chemical compound classes. In particular, green algae synthesized fatty acids with higher δ<sup>2</sup>H values than other taxa, cyanobacteria synthesized phytol with relatively low δ<sup>2</sup>H values, and diatoms synthesized sterols with higher δ<sup>2</sup>H values than other eukaryotes. Second, we assessed how changes in algal community composition can affect net δ<sup>2</sup>H values of common algal lipids in 20 experimental outdoor ponds, which were manipulated via nutrient loading, and the addition of macrophytes and mussels. High algal biomass in the ponds, which was mainly caused by cyanobacterial and green algal blooms, was associated with higher δ<sup>2</sup>H values for generic fatty acids, relatively stable δ<sup>2</sup>H values for phytol and the dinoflagellate biomarker dinostanol, and lower δ<sup>2</sup>H values for the more cosmopolitan sterol stigmasterol. These results are consistent with expectations from our culture-based analyses, suggesting that measuring δ<sup>2</sup>H values of multiple lipids from sediment and calculating <sup>2</sup>H-offsets between them can resolve changes in algal community composition from changes in source water isotopes. With an appropriate availability of sedimentary lipids, this approach could permit the reconstruction of both taxonomic variability and hydroclimate from diverse sedimentary systems.</p>
Fig. 2. P. decussatus ssp. decussatus Waterhouse, 1841. 1 in Short contribution to distribution and appearance of Pachyrhynchus decussatus Waterhouse, 1841 (Entimine: Pachyrhynchini) with description of one new taxon from Catanduanes Island, Philippines
Fig. 2. P. decussatus ssp. decussatus Waterhouse, 1841. 1 - male, 2 - female
iNaturalist: iNat images from GBIF (100 per taxon) (deprecated)
<p></p>http://www.inaturalist.org/ is a place where you can record what you see in nature, meet other nature lovers, and learn about the natural world. Images and data published on EOL originate from iNaturalist Research Grade observations.<p></p>- 100 images per taxon - without any image scoring considered
iNaturalist: iNat images from GBIF (20 per taxon) with scoring
<p></p>http://www.inaturalist.org/ is a place where you can record what you see in nature, meet other nature lovers, and learn about the natural world. Images and data published on EOL originate from iNaturalist Research Grade observations.<p></p>100-select-20: From a pool of 100 images/taxon select 20
Global Biotic Interactions: Taxon Graph Patches
<p>Global Biotic Interactions: Taxon Graph Patch 20210623-01</p> <p>2021-06-23</p> <p>Abstract / Introduction</p> <p>In https://github.com/globalbioticinteractions/globalbioticinteractions/issues/672, Github user @pozsgaig (https://github.com/pozsgaig) shared some suspicious pathogen interaction in which a moth appeared to be a pathogen of another moth (e.g., Plutella xylostella pathogen of Spodoptera ornithogalli). Likely root cause is invalid name mapping.</p> <p>Methods</p> <p>A script "create_patch.sh" was constructed to remove name mappings involving likely virus name acronyms. The names are detected by including all names ending with capital V, except for those with explicit NCBI taxon ids. Example includes: "Plutella xylostella NPV", a name likely referring to "Plutella xylostella multiple nucleopolyhedrovirus", NCBI:txid379891, https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?id=379891. This virus name appears to have been incorrectly mapped to "Plutella xylostella", a moth and the related host that the virus is known to infect. </p> <p>To apply the patch, run the "patch" program against the original<br> taxonMap file with the .patch files on any linux-y system.</p> <p>Patch files taxonMap.tsv.patch.gz was<br> created using: create_patch.sh in period 2021-06-23 .</p> <p>Result/Discussion</p> <p>The resulting patch removed likely suspicious virus name mappings in GloBI Taxon Graph v0.3.32 [1] .</p> <p>References</p> <p>[1] Poelen, Jorrit H. (2021). Global Biotic Interactions: Taxon Graph<br> (Version 0.3.32) [Data set]. Zenodo. http://doi.org/10.5281/zenodo.4753955</p>
Figure 43 in Atlas of Myriapod Biogeography. I. Indigenous Ordinal and Supra-Ordinal Distributions in the Diplopoda: Perspectives on Taxon Origins and Ages, and a Hypothesis on the Origin and Early Evolution of the Class
Figure 43. Distribution of Chordeumatida in Europe, North Africa, and the Middle East.
Figure 21 in Atlas of Myriapod Biogeography. I. Indigenous Ordinal and Supra-Ordinal Distributions in the Diplopoda: Perspectives on Taxon Origins and Ages, and a Hypothesis on the Origin and Early Evolution of the Class
Figure 21. Distribution of Polyzoniida in Europe and the Middle East.
Figure 18 in Atlas of Myriapod Biogeography. I. Indigenous Ordinal and Supra-Ordinal Distributions in the Diplopoda: Perspectives on Taxon Origins and Ages, and a Hypothesis on the Origin and Early Evolution of the Class
Figure 18. Distribution of Platydesmida in North America/the Western Hemisphere.
Figure 17 in Atlas of Myriapod Biogeography. I. Indigenous Ordinal and Supra-Ordinal Distributions in the Diplopoda: Perspectives on Taxon Origins and Ages, and a Hypothesis on the Origin and Early Evolution of the Class
Figure 17. Distribution of the Order Platydesmida.
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.