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214 results for “Native American”
Fig. 14. A-E in A historical and integrative taxonomic account of mangrove oyster species native to the Atlantic American coast: A re-evaluation of Brazilian Crassostrea species
Fig. 14. A-E Anatomical morphology of Crassostrea gasar. A: Adult animal with a "V" accessory heart (C. Gomes LB105); B: tentacle arrangement (C. Gomes LB101); C: Rectum and anal folds (C. Gomes LB105); D: Single branched accessory heart (C. Gomes LB101); E: accessory heart "Y" shaped (C. Gomes LB105). F–K Anatomical morphology of Crassostrea rhizophorae. F: Adult animal with a "Y" accessory heart (C. Gomes LRH08); G–H: tentacle arrangement (C. Gomes LRH10); I: Rectum and anal folds (C. Gomes LRH08); J: Ventral posterior mantle fusion view of both mantle lobes, each containing a simple branched accessory heart (C. Gomes LRH08); K: accessory heart "Y" shaped (C. Gomes LRH10). (ah = accessory heart, lah = left accessory heart, rah = right accessory heart).
Fig. 12 in A historical and integrative taxonomic account of mangrove oyster species native to the Atlantic American coast: A re-evaluation of Brazilian Crassostrea species
Fig. 12. Mean (± standard deviation) Scar of adductor muscle characters from measurements (MSH, MSL, MSL/SL) (p <0.05).
Fig. 10 in A historical and integrative taxonomic account of mangrove oyster species native to the Atlantic American coast: A re-evaluation of Brazilian Crassostrea species
Fig. 10. Mean (± standard deviation) umbo characters from measurements (UH, UL, UCD, UH/SL, UCD/UH). Frequency of C. gasar and C. rhizophorae individuals for each category of UCC (p <0.05).
Fig. 9 in A historical and integrative taxonomic account of mangrove oyster species native to the Atlantic American coast: A re-evaluation of Brazilian Crassostrea species
Fig. 9. Frequency of C. gasar and C. rhizophorae individuals for each category of Br, RVF, SOO (p <0.05).
Fig. 19. A-P in A historical and integrative taxonomic account of mangrove oyster species native to the Atlantic American coast: A re-evaluation of Brazilian Crassostrea species
Fig. 19. A-P Crassostrea rhizophorae morphological variation (Cont.). Shell specimens: A: C. Tureck IdM- 58; B: C. Tureck PdC-81; C: Alfredo O. G´alvez LSb3- 77; D–E: Angela P. Legat 189a-02; F: Alfredo O. G´alvez ZEa2-119; G: Alfredo O. G´alvez ZEc2-14; H: Miguel Accioly ZSc2-05; I: C. Tureck IdM-61; J: Miguel Accioly PEa3-39; K: Angela P. 193c-04; L–M: Angela P. Legat 189-08; N: Miguel Accioly PEa1-40; O: Miguel Accioly ZEa1-45; P: Angela P. Legat 190- 04; Q: Standard cultivar specimen 01. Photo by Jo˜ao Paulo Ramos Ferreira.
Fig. 7 in A historical and integrative taxonomic account of mangrove oyster species native to the Atlantic American coast: A re-evaluation of Brazilian Crassostrea species
Fig. 7. Mean (± standard deviation) shell characters from measurements (SH, SL, SW, SH/SL, RVH/SH). Frequency of C. gasar and C. rhizophorae individuals for each category of SF (p <0.05).
Fig. 4 in A historical and integrative taxonomic account of mangrove oyster species native to the Atlantic American coast: A re-evaluation of Brazilian Crassostrea species
Fig. 4. Shell range of colors. Left valve: a – (Brownish; Bwn), b – (Yellowish; Ylw), c – (White with purple stripes; WP), d – (Whitish; Wht); Right valve: e and f – (Brownish; Bwn), g – (Yellowish; Ylw), h – (Whitish; Wht). Scale: 10 mm. Illustration by Leandro Lopes de Souza. (For interpretation of the references to color in this figure legend, the reader is referred to the Web version of this article.)
Fig. 2 in A historical and integrative taxonomic account of mangrove oyster species native to the Atlantic American coast: A re-evaluation of Brazilian Crassostrea species
Fig. 2. Conchological aspects of the left valve. Internal color: a – (purple), b – (Faintly pigmented), c and d – (white); Internal margin color: c – (purple), d – (white); Outter ornamentation of shells: e and g – (merged scales, "g" with longitudinal costae), f – (imbricate scales); A conspicuous projection of the left shell valve: h – (branchitellum). Color of adductor muscle scar: i – (white), j – (faintly pigmented), k – (purple). Scale; 10 mm. Illustration based on mangrove oysters collected in this study. Illustration by Leandro Lopes de Souza. (For interpretation of the references to color in this figure legend, the reader is referred to the Web version of this article.)
Fig. 3 in A historical and integrative taxonomic account of mangrove oyster species native to the Atlantic American coast: A re-evaluation of Brazilian Crassostrea species
Fig. 3. Shell formats: a – (Circle), b – (Obovoid), c – (Ellipsoid), d – (Elongate). Scale: 10 mm. Illustration by Leandro Lopes de Souza.
Fig. 13 in A historical and integrative taxonomic account of mangrove oyster species native to the Atlantic American coast: A re-evaluation of Brazilian Crassostrea species
Fig. 13. The χ2 test of independence of Species, MSF and MSC, based on the permutation distribution.
Fig. 21 in A historical and integrative taxonomic account of mangrove oyster species native to the Atlantic American coast: A re-evaluation of Brazilian Crassostrea species
Fig. 21. The χ2 test of independence of Species, SF, MSF and UCC, based on the permutation distribution. Legends for MSF (E Elongate, O - Ovate, R – Reniform) and UCC (S – Shallow, D – Deep).
Bioclimatic, soil, terrain, distance to Native American settlement, and historical tree taxon relative abundance data at 8-km resolution for the northeastern United States
<p><span>Researchers have debated impacts of past Native American land use on forests including upon tree species composition in northeastern United States (US), with estimates of impacts ranging from local to regional extent. This study examines tree relative abundances in the </span><span>northeastern US </span><span>(approx. 420,000 km2) </span><span>to assess whether Native Americans influenced geographic distributions of 18 tree taxa prior to Euro-American settlement. </span><span>We used boosted regression trees to model abundance patterns and to assess the importance of distance-based proxies of Native American land use versus environmental variables. We trained models that included and excluded distance-based proxies. Abundance estimates from original land survey records (1650-1850 CE) were acquired for taxa at 8 km spatial resolution, and related to Native American settlement locations (1500-1800 CE) and 27 environmental variables. </span><span>When evaluated upon test data, regional-scale models of relative abundance that included distance-based proxies performed only slightly better than models that excluded them, with mean improvements in RMSE of 0.1 percentage points. Models suggest that Native American land use modestly altered the relative abundance of taxa locally, extending no more than 50 km from settlement. Models also suggest slight increases near settlement of a few percentage points in relative abundance for fire-tolerant and/or dietary taxa (e.g. oak, hickory, and pine), and for early-successional taxa (e.g. ash). </span><span>Past</span><span> Native American land use had no detectable effect on forest composition across a regional extent, but increased the abundance of fire-tolerant, shade-intolerant, and nut-producing trees locally.</span></p> <p><span>The Excel-format (.xlsx) dataset here provides the training and testing data for the BRT models in this publication. It contains relative abundances of the 18 tree taxa expressed as a fraction of total number of trees. It also provides bioclimatic (e.g. annual temperature, annual preciptation), soil (e.g. pH, percent sand), terrain (e.g. slope), and Native American (e.g. distance to settlement) variables developed from multiple sources. A column also indicates whether an observation was part of the training data or the test data. See the publication and its Supporting Information for full details on the acquisition and processing of these data, as well as the original providers of the data. If using these data, please </span><span>cite both this dataset's corresponding article, as well as the original providers of the data.</span></p> <p>Also provided are ascii-format (.asc) gridded data layers that were used for making spatial predictions of taxon relative abundances from BRT models.</p> <p>The original creators/providers of the relative abundance, bioclimatic, soil, terrain, and Native American data or layers used for creating the gridded data in this study are:</p> <p><span>Abel, T. (2016). The Iroquoian occupations of Northern New York: A summary of current research. Ontario Archaeology, 96, 65–75. </span></p> <p><span>CIFAS. (2017). Map Of First Nations in New Brunswick. Comitas Institute for Anthropological Study. <a href="http://cifas.us/first-nations-maps/">http://cifas.us/first-nations-maps/</a> </span></p> <p><span>Grumet, R. S. (1995). Historic Contact: Indian People and Colonists in Today's Northeastern United States in the Sixteenth through Eighteenth Centuries. University of Oklahoma Press.</span></p> <p><span>Jordan, K. A. (2013). Incorporation and colonization: Postcolumbian Iroquois satellite communities and processes of indigenous autonomy. American Anthropologist, 115(1), 29–43.</span></p> <p><span>Milner, G. R., & Chaplin, G. (2010). Eastern North American population at ca. A.D. 1500. American Antiquity, 75(4), 707–726.</span></p> <p><span>NASA. (2000). SRTM 90m Digital Elevation Database v4.1. <a href="https://cgiarcsi.community/data/srtm-90m-digital-elevation-database-v4-1/">https://cgiarcsi.community/data/srtm-90m-digital-elevation-database-v4-1/</a> </span></p> <p><span>O'Donnell, M. S., & Ignizio, D. A. (2012). Bioclimatic Predictors for Supporting Ecological Applications in the Conterminous United States (Data Series 691; p. 10). U.S. Geological Survey. <a href="https://www.sciencebase.gov/catalog/item/4fe0f9f4e4b05d4ed81d9392">https://www.sciencebase.gov/catalog/item/4fe0f9f4e4b05d4ed81d9392</a> </span></p> <p><span>Paciorek, C. J., Goring, S. J., Thurman, A. L., Cogbill, C. V., Williams, J. W., Mladenoff, D. J., Peters, J. A., Zhu, J., & McLachlan, J. S. (2016). Statistically-estimated tree composition for the northeastern United States at the time of Euro-American settlement. PLoS ONE, 11(2), e0150087. <a href="https://doi.org/10.1371/journal.pone.0150087">https://doi.org/10.1371/journal.pone.0150087</a> </span></p> <p><span>Peters, M. P., Iverson, L. R., Prasad, A. M., & Matthews, S. N. (2013). Integrating Fine-scale Soil Data into Species Distribution Models: Preparing Soil Survey Geographic (SSURGO) Data from Multiple Counties (General Technical Report NRS-122; p. 70). U.S. Forest Service. <a href="https://www.fs.usda.gov/treesearch/pubs/45308">https://www.fs.usda.gov/treesearch/pubs/45308</a> </span></p>
Native-American - Burden Basket
This is the model of a native-american burden basket. Source: Objaverse 1.0 / Sketchfab
Native American
Source: Objaverse 1.0 / Sketchfab
Data from: Bird migratory flyways influence the phylogeography of the invasive brine shrimp Artemia franciscana in its native American range
Since Darwin's time, waterbirds have been considered an important vector for the dispersal of continental aquatic invertebrates. Bird movements have facilitated the worldwide invasion of the American brine shrimp Artemia franciscana, transporting cysts (diapausing eggs), and favouring rapid range expansions from introduction sites. Here we address the impact of bird migratory flyways on the population genetic structure and phylogeography of A. franciscana in its native range in the Americas. We examined the sequence variation for two mitochondrial gene fragments (COI and 16S for a subset of the data) in a large set of population samples representing the entire native range of A. franciscana. Furthermore, we performed Mantel tests and redundancy analyses (RDA) to test the role of flyways, geography and human introductions on the phylogeography and population genetic structure at a continental scale. A. franciscana mitochondrial DNA was very diverse, with two main clades, largely corresponding to Pacific and Atlantic populations, mirroring American bird flyways. There was a high degree of regional endemism, with populations subdivided into at least 12 divergent, geographically restricted and largely allopatric mitochondrial lineages, and high levels of population structure ( Φ ST of 0.92), indicating low ongoing gene flow. We found evidence of human-mediated introductions in nine out of 39 populations analysed. Once these populations were removed, Mantel tests revealed a strong association between genetic variation and geographic distance (i.e., isolation-by-distance pattern). RDA showed that shared bird flyways explained around 20% of the variance in genetic distance between populations and this was highly significant, once geographic distance was controlled for. The variance explained increased to 30% when the factor human introduction was included in the model. Our findings suggest that bird-mediated transport of brine shrimp propagules does not result in substantial ongoing gene flow; instead, it had a significant historical role on the current species phylogeography, facilitating the colonisation of new aquatic environments as they become available along their main migratory flyways.
Native American genetic ancestry and pigmentation allele contributions to skin color in a Caribbean population
<p>Interest in the genetic basis of variation in skin pigmentation in Native American populations led us to seek indigenous populations of the Western Hemisphere with African and minimal European admixture to study the effect of Native American ancestry on skin color. Admixture analysis from DNA collected from 458 individuals in the Kalinago territory of the Commonwealth of Dominica showed shared ancestry with East Asians at K=3 and 55% Native American, 32% African, and 11% European ancestry at K=6, the highest Native American ancestry of Caribbean populations. Skin pigmentation was 20 to 80 melanin units, averaging 46. Three albino individuals were homozygous for multi-nucleotide polymorphism OCA2<sup>NW273KV</sup> of African origin, whose population allele frequency was 0.03 and single allele effect size was -8 melanin units. Hypopigmenting allele frequencies for SLC24A5<sup>A111T</sup> and SLC45A2<sup>L374F</sup> were 0.14 and 0.05, whose single allele effect sizes were -6 and -3, respectively. Skin color plots of individuals lacking known hypopigmenting alleles suggests that Native American Ancestry reduced pigmentation by more than 20 melanin units (low and high estimates 21.8 and 28.5). Shared ancestry with East Asians at K=3 suggests potential sharing of one or more pigmentation alleles.</p>
Wooden Native AmeriCan
1st Decent photo scan 13 pics , Sony a5000, Agisoft Source: Objaverse 1.0 / Sketchfab
mHealth App for Changing Alcohol Use in Alaska Native American Indian People
ClinicalTrials.gov study NCT05326438. IPD Sharing: NO. Countries: 1. Publications: 4.
Internet-Based Sexual Health Education for Middle School Native American Youth
ClinicalTrials.gov study NCT01303575. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Motivational Incentives for Alcohol Abstinence in American Indian and Native Alaskan Adults
ClinicalTrials.gov study NCT02174315. IPD Sharing: Not stated. Countries: 1. Publications: 3.
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Allen Brain Atlas
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DANDI Archive for NWB datasets
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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.