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609 results for “Critically endangered”
Fig. 10 in Morphological and molecular description of Ixodes woyliei n. sp. (Ixodidae) with consideration for co-extinction with its critically endangered marsupial host
Fig. 10 Phslogenetcc relatconshcps of csolates of Ixodes woyliei n. sp. wcth other Australascan Ixodes spp. as estcmated uscng cstochrome c oxcdase subunct 1 (cox1) gene sequences. Sequences wcth accesscon numbers were obtacned from GenBank, all others were generated cn thcs studs. Evolutconars hcstors was cnferred uscng the necghbour-jocncng method supported wcth bootstrap test of 1,000 replccates (values> 50% shown). Rhipicephalus sanguineus cs used as the outgroup
Fig. 2 in Morphological and molecular description of Ixodes woyliei n. sp. (Ixodidae) with consideration for co-extinction with its critically endangered marsupial host
Fig. 2 Scanncng electron mccrographs of Ixodes woyliei n. sp. Female. a Idcosoma, unengorged speccmen, dorsal vcew. b Idcosoma, unengorged speccmen, ventral vcew. c Scutum, showcng lateral carcnae. d Anal groove. Scale-bars: a-c, 500 μm; d, 100 μm
Fig. 3 in Morphological and molecular description of Ixodes woyliei n. sp. (Ixodidae) with consideration for co-extinction with its critically endangered marsupial host
Fig. 3 Scanncng electron mccrographs of Ixodes woyliei n. sp. Female. a Gnathosoma, dorsal vcew. b Gnathosoma, ventral vcew. c Hspostome. Scale-bars: a-b, 100 μm; c, 20 μm
Figure 2 in Third record of the Critically Endangered Brazilian Merganser Mergus octosetaceus in São Paulo state, south-east Brazil, after almost two centuries
Figure 2. Locality where observations were made in August and November 2017, rio Claro, Salesópolis, São Paulo, Brazil (Miguel Nema Neto)
Figure 1 in Third record of the Critically Endangered Brazilian Merganser Mergus octosetaceus in São Paulo state, south-east Brazil, after almost two centuries
Figure 1. Male Brazilian Merganser Mergus octosetaceus, rio Claro, Salesópolis, São Paulo, Brazil, 25 August 2017 (Fabiana Dias Pereira)
Fig. 3 in Growth of Critically Endangered annual fish Austrolebias wolterstorffi (Cyprinodontiformes: Rivulidae) at different temperatures
Fig. 3. Standard length (SL) of Austrolebias wolterstorffi sexually differentiated (males and females) and undifferentiated (juveniles), at 46 (A) and 53 (B) days after hatching. Different letters represent significant differences in SL means (A: t test, px <0.05, B: ANOVA, Tukey, p> 0.05).
Fig. 5 in Growth of Critically Endangered annual fish Austrolebias wolterstorffi (Cyprinodontiformes: Rivulidae) at different temperatures
Fig. 5. Effect of temperature on growth in standard length (SL) of female (A) and male (B) of Austrolebias wolterstorffi under different ages (DAH = days after hatching). The arrows indicate the inflection points of curves.
Fig. 4 in Growth of Critically Endangered annual fish Austrolebias wolterstorffi (Cyprinodontiformes: Rivulidae) at different temperatures
Fig. 4. Effect of temperature on growth in standard length (SL) of Austrolebias wolterstorffi under different ages (DAH = days after hatching). The arrows indicate the inflection points of curves.
Fig. 2 in Growth of Critically Endangered annual fish Austrolebias wolterstorffi (Cyprinodontiformes: Rivulidae) at different temperatures
Fig. 2. Standard length (SL) of females (A) and males (B) and weight (W) of females (C) and males (D) (mean ± standard error) Austrolebias wolterstorffi kept in the laboratory for 67 days after hatching (DAH) under different temperatures. Different letters represent significant mean differences between treatments (ANOVA, Tukey, p <0.05)
Fig. 1 in Growth of Critically Endangered annual fish Austrolebias wolterstorffi (Cyprinodontiformes: Rivulidae) at different temperatures
Fig. 1. Standard length (SL) (mean ± standard error) of Austrolebias wolterstorffi kept in the laboratory for 46 days after hatching (DAH) under different temperatures. Different letters represent significant mean differences between treatments (ANOVA, Tukey, p <0.05)
FIG. 3 in New discoveries of plants from Republic of Guinea, W. Africa, including Gymnosiphon fonensis Cheek, sp. nov. (Burmanniaceae), a new Critically Endangered species from Simandou
FIG. 3. — Gymnosiphon fonensis Cheek, sp. nov.: map of the global distribution. Adapted from Xander van der Burgt, map data Open Street Map.
FIG. 2 in New discoveries of plants from Republic of Guinea, W. Africa, including Gymnosiphon fonensis Cheek, sp. nov. (Burmanniaceae), a new Critically Endangered species from Simandou
FIG. 2. —Gymnosiphon fonensis Cheek, sp. nov.: A, habit, whole plant; B, habit, base of plant showing: rhizome (dotted) with roots and two stem (peduncle) bases; C, flower and rhachis; D, distal part of open flower; E, corolla tube opened (distal portion) to show inner tepals in relation to style head (with stamens attached) and stigmas; F, lobing of corolla lobes (from one flower); G, stigmatic-style head, with stigmas above, anther cells below, side view; H, as G but dorsal view; I, as G but ventral view (style in transverse section); J, ovary opened with a longitudinal cut, to show the three placental masses with ovules, and (black) pairs of nectar glands; A-I, from Cheek 19334; J, from van der Burgt 1274. All drawn by Andrew Brown. Scale bars: A, 1 cm; B, C, 5 mm; D-F, 5 mm; G-I, 1 mm; J, 2 mm.
Fig. 11 in Trypanosomes genetic diversity, polyparasitism and the population decline of the critically endangered Australian marsupial, the brush tailed bettong or woylie (Bettongia penicillata)
Fig. 11. Transmission electron micrograph of an epimastigote and an amastigote of G2 (Clade A). (A) Epimastigote in culture; Ax: Axoneme showing nine doublets of microtubules surrounding a central pair; Ac: Acidocalcisomes; Arrow: Subpellicular microtubules. (B) Amastigote inside a VERO cell. Scale bars = 0.5 µm (A), 1 µm (B).
Fig. 9 in Trypanosomes genetic diversity, polyparasitism and the population decline of the critically endangered Australian marsupial, the brush tailed bettong or woylie (Bettongia penicillata)
Fig. 9. Infection of Vero (A) and L6 cells (B) with G2 (Clade A) and T. cruzi as a positive control of infection (Diff-Quick stained). (A) Intracellular amastigotes of G2. (B) Intracellular amastigotes of T. cruzi. Scale bars = 10 µm.
Fig. 8 in Trypanosomes genetic diversity, polyparasitism and the population decline of the critically endangered Australian marsupial, the brush tailed bettong or woylie (Bettongia penicillata)
Fig. 8. Epimastigotes of G1 and G2 (Clade A) arranged in rosettes in culture. (A) Diff-Quick stained rosettes. (B) Rosettes in fresh wet preparations showing numerous intracellular acidocalcisomes. Scale bars = 10 µm.
Fig. 7 in Trypanosomes genetic diversity, polyparasitism and the population decline of the critically endangered Australian marsupial, the brush tailed bettong or woylie (Bettongia penicillata)
Fig. 7. Light microscopy of Diff-Quick stained blood and culture forms of G1 and G2 (Clade A) (A) Trypomastigote in blood of a woylie naturally infected; (B) slender epimastigote in culture; (C and D) shaped epimastigote in culture; (E) spheromastigote in culture; (F) spheromastigotes dividing in culture. Scale bars = 10 µm.
Fig. 6 in Trypanosomes genetic diversity, polyparasitism and the population decline of the critically endangered Australian marsupial, the brush tailed bettong or woylie (Bettongia penicillata)
Fig. 6. Structures suggestive of amastigotes (arrows) of G2 (Clade A) in heart tissue positive by PCR (H&E stained). Scale bars = (A) 20 µm, (B) 10 µm.
Fig. 5 in Trypanosomes genetic diversity, polyparasitism and the population decline of the critically endangered Australian marsupial, the brush tailed bettong or woylie (Bettongia penicillata)
Fig. 5. Histopathology of two woylies naturally infected with G2 (Clade A) (H&E stained). (A) Multifocal, moderate to severe, chronic, pyogranulomatous myocarditis and (B) endocarditis. (C) Mineralisation of heart tissue. (D) Tongue showing multifocal, moderate, chronic, pyogranulomatous glossitis. (E) Skeletal muscle degeneration. (F) Inflammatory cells around a blood vessel. Scale bars = 20 µm.
Fig. 3 in Trypanosomes genetic diversity, polyparasitism and the population decline of the critically endangered Australian marsupial, the brush tailed bettong or woylie (Bettongia penicillata)
Fig. 3. Phylogenetic relationships of the new trypanosome isolates from Western Australian marsupials based on gGAPDH sequences (~810 bp) using Mr Bayes. The tree was rooted with five sequences as outgroups. Bayesian posterior probabilities are shown at nodes. Bar, 0.07 substitutions per site.
Fig. 10 in Trypanosomes genetic diversity, polyparasitism and the population decline of the critically endangered Australian marsupial, the brush tailed bettong or woylie (Bettongia penicillata)
Fig. 10. Scanning electron micrograph of G2 (Clade A) grown in culture with Vero cells. (A) Trypomastigote invading a cell, with the flagella still external to the cell. (B) Dead cell(s) surrounded by amastigotes and trypomastigotes. Scale bars = 2 µm (A), 4 µm (B).
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.