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584 results for “larval stages”
FIG. 4 in Updated Morphological Descriptions of the Larval Stage of Urophycis (Family: Phycidae) from the Northeast United States Continental Shelf
FIG. 4. Line illustrations and images of Urophycis regia at (A) 2.7 mm, (B) 3 mm, (C) 4.2 mm, and (D) 6.1 mm.
FIG. 3 in Updated Morphological Descriptions of the Larval Stage of Urophycis (Family: Phycidae) from the Northeast United States Continental Shelf
FIG. 3. Line illustrations of ventral view showing lower jaw and ventral midline pigment of (A) 2.2 mm Urophycis chuss, (B) 2.7 mm Urophycis regia, and (C) 1.9 mm Urophycis tenuis.
FIG. 1 in Updated Morphological Descriptions of the Larval Stage of Urophycis (Family: Phycidae) from the Northeast United States Continental Shelf
FIG. 1. Line illustrations and images of Urophycis chuss at (A) 2.2 mm, (B) 3.3 mm, (C) 4.3 mm, and (D) 6 mm.
Data from: Larval environment alters amphibian immune defenses differentially across life stages and populations
Recent global declines, extirpations and extinctions of wildlife caused by newly emergent diseases highlight the need to improve our knowledge of common environmental factors that affect the strength of immune defense traits. To achieve this goal, we examined the influence of acidification and shading of the larval environment on amphibian skin-associated innate immune defense traits, pre and post-metamorphosis, across two populations of American Bullfrogs (Rana catesbeiana), a species known for its wide-ranging environmental tolerance and introduced global distribution. We assessed treatment effects on 1) skin-associated microbial communities and 2) post-metamorphic antimicrobial peptide (AMP) production and 3) AMP bioactivity against the fungal pathogen Batrachochytrium dendrobatidis (Bd). While habitat acidification did not affect survival, time to metamorphosis or juvenile mass, we found that a change in average pH from 7 to 6 caused a significant shift in the larval skin microbial community, an effect which disappeared after metamorphosis. Additionally, we found shifts in skin-associated microbial communities across life stages suggesting they are affected by the physiological or ecological changes associated with amphibian metamorphosis. Moreover, we found that post-metamorphic AMP production and bioactivity were significantly affected by the interactions between pH and shade treatments and interactive effects differed across populations. In contrast, there were no significant interactions between treatments on post-metamorphic microbial community structure suggesting that variation in AMPs did not affect microbial community structure within our study. Our findings indicate that commonly encountered variation in the larval environment (i.e. pond pH and degree of shading) can have both immediate and long-term effects on the amphibian innate immune defense traits. Our work suggests that the susceptibility of amphibians to emerging diseases could be related to variability in the larval environment and calls for research into the relative influence of potentially less benign anthropogenic environmental changes on innate immune defense traits.
FIGURES 1–9. Cabecar serratus. Figs. 1–6 larval mouthparts. 1 in Cabecar serratus, a new genus and species of leptohyphid mayfly from Central America, and description of the imaginal stages of Tricorythodes sordidus Allen (Ephemeroptera: Leptohyphidae)
FIGURES 1–9. Cabecar serratus. Figs. 1–6 larval mouthparts. 1, labrum: left, dorsal view; right, ventral view; 2, right mandible; 3, left mandible; 4, hypopharynx; 5, maxilla; 6, labium: left, dorsal; right, ventral view. Figs. 7–9 mature larva. 7, pronotum and mesonotum: dorsal view; 8, foreleg: dorsal view 9, foreclaw.
FIGURE 14 in Morphology and chaetotaxy of the larval stages of Andogyrus seriatopunctatus Régimbart (Coleoptera: Adephaga: Gyrinidae)
FIGURE 14. Andogyrus seriatopunctatus, third instar larva, head capsule, dorsal view. Scale bar: 1 mm.
FIGURES 12–13. Andogyrus seriatopunctatus, first instar larva. 12 in Morphology and chaetotaxy of the larval stages of Andogyrus seriatopunctatus Régimbart (Coleoptera: Adephaga: Gyrinidae)
FIGURES 12–13. Andogyrus seriatopunctatus, first instar larva. 12, Head capsule, chaetotaxy, dorsal view; 13, head capsule, chaetotaxy, ventral view. Additional setae marked with a black square.
FIGURES 10–11. Andogyrus seriatopunctatus, first instar larva. 10 in Morphology and chaetotaxy of the larval stages of Andogyrus seriatopunctatus Régimbart (Coleoptera: Adephaga: Gyrinidae)
FIGURES 10–11. Andogyrus seriatopunctatus, first instar larva. 10, Abdominal segments VIII–X, dorsal view; 11, abdominal segments VIII–X, ventral view. Scale bar: 0.5 mm.
FIGURES 8–9. Andogyrus seriatopunctatus, first instar larva. 8 in Morphology and chaetotaxy of the larval stages of Andogyrus seriatopunctatus Régimbart (Coleoptera: Adephaga: Gyrinidae)
FIGURES 8–9. Andogyrus seriatopunctatus, first instar larva. 8, Metathoracic leg, anterior view; 9, metathoracic leg, posterior view. Additional setae marked with a black square. Scale bar: 0.2 mm.
FIGURES 1–7. Andogyrus seriatopunctatus, first instar larva. 1 in Morphology and chaetotaxy of the larval stages of Andogyrus seriatopunctatus Régimbart (Coleoptera: Adephaga: Gyrinidae)
FIGURES 1–7. Andogyrus seriatopunctatus, first instar larva. 1, Head capsule, dorsal view; 2, antenna, dorsal view; 3, mandible, dorsal view; 4, maxilla, dorsal view; 5, maxilla, ventral view; 6, labium, ventral view; 7, labium, dorsal view. Additional setae marked with a black square. Scale bars, Fig. 1: 0.5 mm; Figs 2–7: 0.1 mm.
FIGURE 8 in Immature stages of two species of Evandromyia (Aldamyia) and the systematic importance of larval mouthparts within Psychodidae (Diptera, Phlebotominae, Psychodinae)
FIGURE 8. Mouth part of the larva of Clogmia albipunctatus: a- mandible, ab—adoral brush, fs—frontal setae to the apical teeth, ml—mandibular lobe, pb—prosthecal brush; b—detail of the mandible. Et—external tooth, at—apical teeth, plm latero-mandibular process, c—part of the head, l—labrum, m—mandible; d— labral brush.
FIGURE 3. a–c in Immature stages of two species of Evandromyia (Aldamyia) and the systematic importance of larval mouthparts within Psychodidae (Diptera, Phlebotominae, Psychodinae)
FIGURE 3. a–c. Larva of Evandromyia carmelinoi. a—Antenna; b—mandible, c—dorsal side of the maxilla, at: apical teeth, lmp: latero-mandibular process, mb: mandibular brush, mdl: mandibular lobe, s1 – s6: setae; maxilla—ma: maxillary process; ds—digitiform sensillae, ps—papiliform sensillae, s1-s3: setae; ts—trichodeal sensillae; d—Antenna of the larva of E. lenti.
FIGURE 4 in Immature stages of two species of Evandromyia (Aldamyia) and the systematic importance of larval mouthparts within Psychodidae (Diptera, Phlebotominae, Psychodinae)
FIGURE 4. Head, part of thorax and last segments of the abdomen of first instar larva of Evandromyia carmelinoi. a— Head and prothorax, m—mandible, l— labrum, s—spur or egg buster, 1–9 —setae; b—abdominal eight and nine segments, cs—caudal setae, e—spiracle, – tb—tubercle of insertion of the caudal setae, 7–15—setae
FIGURE 5 in Immature stages of two species of Evandromyia (Aldamyia) and the systematic importance of larval mouthparts within Psychodidae (Diptera, Phlebotominae, Psychodinae)
FIGURE 5. Scanning electron microscopy of the thorax of Evandromyia lenti. a—prothorax and mesothorax, ventral surface, 4–15 setae, b and c- increased areas with small setae 12, and 14.
FIGURE 7. a in Immature stages of two species of Evandromyia (Aldamyia) and the systematic importance of larval mouthparts within Psychodidae (Diptera, Phlebotominae, Psychodinae)
FIGURE 7. a: lateral part of the head of larva of Evandromyia lenti, l—labrum, md—mandible, mx—maxilla, 3–7— setae, bar—60µm; b—labrum, bar 20µm; c—apex of the maxilla, showing trichoidal or spine like probable sensillae, bar—4,5µm; d—part of the labrum, showing the transverse row of finger-like combs of setae, bar—1,64µm.
FIGURE 2. a–c in Immature stages of two species of Evandromyia (Aldamyia) and the systematic importance of larval mouthparts within Psychodidae (Diptera, Phlebotominae, Psychodinae)
FIGURE 2. a–c. Schematic drawing and pictures of the chaetotaxy of larva of Evandromyia carmelinoi. 2a. Mature larva: DS—dorsal side; VS—ventral side, cl—clypeus, m—mentum, fs—frontal suture, 1–7: setae; b —thorax, as— anterior spiracle, PT—prothorax, MS and MT—meso and metathorax, metathorax not drawn because is similar of the mesothorax, 1–15: setae; c—abdomen, AS 1–7—abdominal segments first to seven, 2–15—setae; d—AS 8—abdominal segment eight, – ec—external caudal seta, ic—internal caudal seta, ps— posterior spiracle, 2–15—setae; 2b and 2c— details of setae of the thoracic and abdominal setae.
FIGURE 6 in Immature stages of two species of Evandromyia (Aldamyia) and the systematic importance of larval mouthparts within Psychodidae (Diptera, Phlebotominae, Psychodinae)
FIGURE 6. Scanning electron microscopy of last abdominal segments of Evandromyia lenti, dorsal side. 2–15—setae, increased areas: 2 —seta 2, asterisk—mamiliform sensillae of the tubercle of the caudal seta. Bar—300µm.
Figure 9 in Aedes mosquitoes in the Republic of the Sudan, with dichotomous keys for the adult and larval stages
Figure 9. Siphon of Form Y Type 2 with 24 pectin Figure 10. Comb of Form Y Type 2 with nine spines, of the three distal spines the two more scales.
Figure 5 in Aedes mosquitoes in the Republic of the Sudan, with dichotomous keys for the adult and larval stages
Figure 5. Comb of Form X, scales in a more or less Figure 6. Comb of Aedes vexans arabiensis, double row. scales in an essentially single row.
Figure 7 in Aedes mosquitoes in the Republic of the Sudan, with dichotomous keys for the adult and larval stages
Figure 7. Siphon of Form Y Type 1 with three Figure 8. Comb of Form Y Type 1 with nine distal spines (the most distal with one very fine scales.
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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.