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65 results for “Amazonian region”
FIGURE 4 in A new, large species of Chiasmocleis Méhelÿ 1904 (Anura: Microhylidae) from the Iquitos region, Amazonian Peru
FIGURE 4. Map showing the known distribution of Chiasmocleis devriesi at the Amazon Conservatory for Tropical Studies (ACTS) Field Station (indicated by star). Color shows elevation (white = below 200 m; light gray = 200–500 m; dark gray = above 500 m).
FIGURE 1 in A new, large species of Chiasmocleis Méhelÿ 1904 (Anura: Microhylidae) from the Iquitos region, Amazonian Peru
FIGURE 1. Dorsal (above) and ventral (below) views of the holotype of Chiasmocleis devriesi in life (MHNSM 21540, adult female; SVL = 42.2 mm). Photos by W. Chris Funk.
FIGURE 4 in A new species of Pristimantis (Anura: Strabomantidae) from the Amazonian lowlands of northern Peru (Region Loreto and San Martín)
FIGURE 4. Map illustrating collecting sites (indicated by circles) and type locality (indicated by a star) of the type series of Pristimantis orcus in northern Peru.
FIGURE 3 in A new species of Pristimantis (Anura: Strabomantidae) from the Amazonian lowlands of northern Peru (Region Loreto and San Martín)
FIGURE 3. Dorsal (A) and lateral (B) views of head and ventral views of hand (C) and foot (D) of Pristimantis orcus (MUSM 27435). Scale bar = 5 mm. Drawings by E. Lehr.
FIGURE 1 in A new species of Pristimantis (Anura: Strabomantidae) from the Amazonian lowlands of northern Peru (Region Loreto and San Martín)
FIGURE 1. Left column: Female Pristimantis orcus (MUSM 27435, holotype, SVL 36.5 mm) in dorsolateral (A), lateral (B), and ventral (C) views; right column: male Pristimantis orcus (MUSM 25938, paratype, SVL 22.4 mm) in dorsolateral (D), lateral (E), and ventral (F) views. Photos A–C by D. Rodríguez, photos D–F by A. Catenazzi.
FIGURE 2 in A new species of Pristimantis (Anura: Strabomantidae) from the Amazonian lowlands of northern Peru (Region Loreto and San Martín)
FIGURE 2. Preserved Pristimantis orcus (holotype) in dorsal (A), and ventral (B) views. Photos by E. Lehr.
FIGURE. Seedlings, seeds, embryos, anthers, and pollen in Dicorynia. A–D. Different stages of development in seedlings of D. paraensis, First eophiles unifoliolate and opposite; E–G. Seed of D. guianensis: E. External surface; F. Endosperm of the longitudinally sectioned seed, note the slightly gelatinous upper region; G. Cotyledon and embryo of longitudinally sectioned seed; H. SEM of seed's testa in D. paraensis; I. SEM of endosperm's surface in D. guianensis (notice the presence of circular perforations); J–K. SEM of the hypocotyl-radicular axis of the seed in D. guianensis and D. paraensis; L. SEM of seed's testa in D. guianensis; M–N. SEM of plumule region in embryo of D. guianensis and D. paraensis (note the developed leaf primordia); O. Apex of anther in longer stamen of D. paraensis, showing 4 sporangia and two pores covered by an apicle; P. Apex of anther in shorter stamen of D. guianensis, at least 9 sporangia; Q. Apex of anther in longer stamen of D. guianensis, 8 sporangia; R. Pollen grains in D. paraensis. A–D: Falcão, M.J. 91; E–G, I–J, L–M: Gentry 63030; H, K, N: Berry, P.E. 7460; O: Amaral, E. 618; P, Q: Unknown collector MO1576407; Scale bar. A–D: 2cm; E–G: 3mm; H–L: 1mm; M–N: 100 μm; O-Q: 200μm; R: 5 μm. in A Taxonomic Revision of the Amazonian Genus Dicorynia (Fabaceae: Dialioideae)
FIGURE. Seedlings, seeds, embryos, anthers, and pollen in Dicorynia. A–D. Different stages of development in seedlings of D. paraensis, First eophiles unifoliolate and opposite; E–G. Seed of D. guianensis: E. External surface; F. Endosperm of the longitudinally sectioned seed, note the slightly gelatinous upper region; G. Cotyledon and embryo of longitudinally sectioned seed; H. SEM of seed's testa in D. paraensis; I. SEM of endosperm's surface in D. guianensis (notice the presence of circular perforations); J–K. SEM of the hypocotyl-radicular axis of the seed in D. guianensis and D. paraensis; L. SEM of seed's testa in D. guianensis; M–N. SEM of plumule region in embryo of D. guianensis and D. paraensis (note the developed leaf primordia); O. Apex of anther in longer stamen of D. paraensis, showing 4 sporangia and two pores covered by an apicle; P. Apex of anther in shorter stamen of D. guianensis, at least 9 sporangia; Q. Apex of anther in longer stamen of D. guianensis, 8 sporangia; R. Pollen grains in D. paraensis. A–D: Falcão, M.J. 91; E–G, I–J, L–M: Gentry 63030; H, K, N: Berry, P.E. 7460; O: Amaral, E. 618; P, Q: Unknown collector MO1576407; Scale bar. A–D: 2cm; E–G: 3mm; H–L: 1mm; M–N: 100 μm; O-Q: 200μm; R: 5 μm.
FIGURE. Distribution of Dicorynia. Physical map of the Amazonian region with all analyzed specimens of Dicorynia. A large amount of point overlays leading to reduced number of visible points is due to the large percentage of materials being old collections that rely only on the name of the municipality or similar. Source: NASA with modifications. Note that almost all specimens are contained in areas with less than 200 m high and the high elevations of the Guiana shield may represent a form of isolation between the two species. in A Taxonomic Revision of the Amazonian Genus Dicorynia (Fabaceae: Dialioideae)
FIGURE. Distribution of Dicorynia. Physical map of the Amazonian region with all analyzed specimens of Dicorynia. A large amount of point overlays leading to reduced number of visible points is due to the large percentage of materials being old collections that rely only on the name of the municipality or similar. Source: NASA with modifications. Note that almost all specimens are contained in areas with less than 200 m high and the high elevations of the Guiana shield may represent a form of isolation between the two species.
FIGURE 5 in Hintonelmis spila sp. nov. (Elmidae: Elminae): a new species of riffle beetle from Amazonian region
FIGURE 5. Hintonelmis spila sp. nov. (Coleoptera: Elmidae). Adult, female. (A) Ovipositor, ventral view. (B) Tergite VIII, dorsal view, with the anterior region highlighted. (C) Sternite VIII, dorsal view. Scale bars = 0.1 mm.
FIGURE 4 in Hintonelmis spila sp. nov. (Elmidae: Elminae): a new species of riffle beetle from Amazonian region
FIGURE 4. Hintonelmis spila sp. nov. (Coleoptera: Elmidae). Adult, male. (A) Genitalia, ventral view. (B) Tergite VIII, ventral view. (C) Sternite VIII, dorsal view. (D). Segment IX, ventral view. (E) Metathoracic wing. Scale bars = 0.1 mm.
FIGURE 3 in Hintonelmis spila sp. nov. (Elmidae: Elminae): a new species of riffle beetle from Amazonian region
FIGURE 3. Hintonelmis spila sp. nov. (Coleoptera: Elmidae). Adult, mouthparts. (A) Labrum, dorsal view. (B) Maxilla, dorsal view. (C) Right mandible, dorsal view. (D) Right mandible, ventral view. (E) Labium, ventral view. Scale bars = 0.1 mm.
FIGURE 2 in Hintonelmis spila sp. nov. (Elmidae: Elminae): a new species of riffle beetle from Amazonian region
FIGURE 2. Hintonelmis spila sp. nov. (Coleoptera: Elmidae). Adult male, habitus. (A) Dorsal view. (B) Ventral view. (C) Lateral view. (D) Front view. Scale bars = 0.5 mm.
FIGURE 1 in Hintonelmis spila sp. nov. (Elmidae: Elminae): a new species of riffle beetle from Amazonian region
FIGURE 1. Map of South America with detailed area indicating the distributional records and general view of the sampled streams for Hintonelmis spila sp. nov. (Coleoptera: Elmidae).
The Role of Climate on the Emergence of Giant Caimanines (Crocodylia, Alligatoroidea) from the Miocene Western Amazonian Region
<p>Supplementary Material of the manuscript "The Role of Climate on the Emergence of Giant Caimanines (Crocodylia, Alligatoroidea) from the Miocene Western Amazonian Region". The zip folder contains six subfolders with data and code, and a README file with the instructions to perform all the analyses.</p>
FIGURES 1 in A new genus and species in the diatom family Eunotiaceae Kützing (Bacillariophyceae) from the Amazonian hydrographic region, Brazil
FIGURES 1: A–E. Light microscopy, Valve views. Figure 1B is of the holotype. Figures 1A-C are typical valves. Figures 1D, 1E are of deformed valves. Scale bar = 20 µm.
FIGURES 4A–E. SEM, valve interior. Fig. 4A in A new genus and species in the diatom family Eunotiaceae Kützing (Bacillariophyceae) from the Amazonian hydrographic region, Brazil
FIGURES 4A–E. SEM, valve interior. Fig. 4A. Valve view. Scale bar = 20 µm. Figs 4B-D showing apex of valve with raphe branch, helictoglossa and rimoportulae evident. Fig. 4E. Central portion of the valve with interruption of striae evident in the center of the valve. Scale bars = 2 µm for figures 4B–D.
FIGURE 5 in A new genus and species in the diatom family Eunotiaceae Kützing (Bacillariophyceae) from the Amazonian hydrographic region, Brazil
FIGURE 5. Phylogenetic hypothesis of the evolutionary relationships within the Eunotiophycidae, and to other pennate groups. Short, horizontal bars indicate putative synapomorphies for the particular level of evolutionary branching.
FIGURES 3A–C. SEM, valve exterior. Figs 3A, 3B in A new genus and species in the diatom family Eunotiaceae Kützing (Bacillariophyceae) from the Amazonian hydrographic region, Brazil
FIGURES 3A–C. SEM, valve exterior. Figs 3A, 3B are of the valve apex showing the raphe, presence of siliceouis nodules and spinules on the valve face and external openings of rimoportulae. Fig. 3C. Valve center showing sternum positioned about at the center of the valve. Areolae are small, round. Scale bars = 2 µm for all figures.
FIGURES 2A–E in A new genus and species in the diatom family Eunotiaceae Kützing (Bacillariophyceae) from the Amazonian hydrographic region, Brazil
FIGURES 2A–E. Light microscopy of valve detail. Figs 2A-C show end of valve with rimoportulae present. Figs 2A and 2B are of typical valves, figs 2C and 2D are of deformed valves. Fig. 2E is taken in the valve center. Scale bars = 10 µm.
Fig. 11 in Discovery of a Third Stag Beetle Genus in the Amazonian Region, with Description of a New Species ofPsilodonPerty (Coleoptera: Lucanidae: Syndesinae: Syndesini)
Fig. 11. Map of the known distribution of Lucanidae in the Amazonian Region. Crosses = Brasilucanus alvarengai Vulcano and Pereira; square = Brasilucanus acomus Ratcliffe; circles = Lucanobium guianense Paulsen; triangles = Psilodon buhrnheimi; open circles = Charagmophorus lineatus lineatus Waterhouse; open triangle = Charagmophorus lineatus eikoae Nagai; open square = Charagmophorus umedai Nagai.
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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.