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1,250 results for “Hydrophilidae”
Figures 78–85 in Larval chaetotaxy and morphology are highly homoplastic yet phylogenetically informative in Hydrobiusini water scavenger beetles (Coleoptera: Hydrophilidae)
Figures 78–85. Larva of Limnoxenus niger, first instar (78–81) and third instar (82–85). 78, 82, antenna, dorsal view. 79, 83, right mandible, dorsal view. 80, 84, maxilla, dorsal view. 81, 85, maxilla, ventral view. Scale bars: 0.05 mm.
Fig. 4. A in Identification of Sound-Producing Hydrophilid Beetles (Coleoptera: Hydrophilidae) in Underwater Recordings Using Digital Signal Processing
Fig. 4. A half-second vocalization by Tropisternus blatchleyi from 0–5,000 Hz changed into the frequency domain using the Fast Fourier Transformation. Active call frequency regions are at 1,100 Hz and 4,400 Hz. The first feature for T. blatchleyi divides the sum of the points in the active frequency band by the sum of the points in the inactive band, yielding a large number in T. blatchleyi exemplar calls.
Fig. 3 in Identification of Sound-Producing Hydrophilid Beetles (Coleoptera: Hydrophilidae) in Underwater Recordings Using Digital Signal Processing
Fig. 3. The classifier algorithm with two features shown in a two-dimensional graph. Beetle call data and noise data are classified based on two beetle call features: difference in active frequency range shape (x-axis and in Matlab™ as a template) and a ratio of amplitudes in an active and non-active frequency range (y-axis). The algorithm is shown as a solid black line. Most beetle calls fall within the correct classification in the lower left-hand corner, however, some fall outside the equation and are classified as noise. Likewise, noises are occasionally classified as beetles. As more features are added, the algorithm becomes multidimensional.
Fig. 2 in Identification of Sound-Producing Hydrophilid Beetles (Coleoptera: Hydrophilidae) in Underwater Recordings Using Digital Signal Processing
Fig. 2. Five distress calls by Berosus pantherinus transformed into the frequency domain using the fast fourier transformation from 0–12,000 Hz (x-axis). Wide active frequency bands can be seen from 1,500–6,000 Hz and 7,000–9,500 Hz. The feature for distress calls is the sum of the data points between 1,000–6,000 Hz with an amplitude (y-axis) greater than 2.
Fig. 2 in First Record of Hydrophilus ensifer Brullé (Coleoptera: Hydrophilidae) in the Continental United States
Fig. 2. Abdominal ventrites of the Hydrophilus ensifer observed in Palm Beach County, Florida, illustrating the medial glabrous area characteristic of this species.
Fig. 1 in First Record of Hydrophilus ensifer Brullé (Coleoptera: Hydrophilidae) in the Continental United States
Fig. 1. Dorsal habitus of the Hydrophilus ensifer observed in Palm Beach County, Florida on 17 May 2020.
Figure 17 in Karyotypes of water scavenger beetles (Coleoptera: Hydrophilidae): new data and review of published records
Figure 17. Mitotic karyotypes of Cercyon from midgut. (A) Cercyon marinus; (B–E) Cercyon lateralis; (F–G) Cercyon obsoletus; (H) Cercyon impressus; (I–K) Cercyon haemorrhoidalis; (L–N) Cercyon melanocephalus. A, B, D, F, H, I, K, L, N, without treatment. C, E, G, J, M, C-banded. Habitus figures: (O) Cercyon marinus; (P) Cercyon impressus; (Q) Cercyon haemorrhoidalis, from Fikáček (2019).
Figure 15 in Karyotypes of water scavenger beetles (Coleoptera: Hydrophilidae): new data and review of published records
Figure 15. Karyotypes of the Coelostomatini and Protosternini. A–C, Coelostoma orbiculare, embryo (A, with B-chromosomes; B–C, without B-chromosomes). D–F, Dactylosternum flavicorne, embryo. G, Dactylosternum corbetti, mitosis, midgut. J–K, Protosternum abnormale, meiotic nuclei from testes. A–F, J, K, without treatment. G, C-banded. Habitus figures: (H) Coelostoma orbiculare; (I) Dactylosternum corbetti; (L) Protosternum abnormale, from Fikáček et al. (2018).
Figures 99–106 in Larval chaetotaxy and morphology are highly homoplastic yet phylogenetically informative in Hydrobiusini water scavenger beetles (Coleoptera: Hydrophilidae)
Figures 99–106. Results of the phylogenetic analyses. 99–105, topologies obtained using different datasets: 99, larval morphology only (majority rule consensus); 100: larval chaetotaxy only (implied weighted tree, k = 20). 101, all larval characters (implied weigthed tree, k = 20). 102, larval and adult characters (most parsimonous tree). 103, reference topology based on DNA data, adopted from Toussaint & Short (2018). 104, part of the tree based on all larval characters (same as on Fig. 101) with characters mapped. 105, Hydrophilinae molecular reference topology with updated position of Tritonus with larval characters mapped. 106, alternative position of Tritonus in constrained topology search using different datasets.
Fig. 7 in Revision of the Beach-Dwelling Species of Cercyon Leach (Coleoptera: Hydrophilidae) of the West Coast of North America
Fig. 7. Cercyon species, male genitalia (parameres and basal piece, median lobe, and ninth ventrite, respectively). A–C) C. whuljensis (BC14MO-025), D–F) C. dux (BC14MO-030), G–I) C. fimbriatus (BC16MO-033), J–L) C. luniger (WA18AS-008), M–O) C. setulosus (WA16AS-006). Bp = basal piece; Co = corona; Ed = ejaculatory duct; Pm = parameres. Scale bars = 0.5 mm.
Fig. 12 in Revision of the Beach-Dwelling Species of Cercyon Leach (Coleoptera: Hydrophilidae) of the West Coast of North America
Fig. 12. Cercyon setulosus, male (WA16AS-006). A) Habitus, oblique view, B) Head, oblique view, C) Head, ventral view, showing adhesion discs, D) Left half of pronotum, E) Prosternum and meso- and metaventrites, ventral view, F) Prosternum and mesoventrites, oblique ventral view, G) Apical half of right elytron, oblique posterior view.
Fig. 3 in Revision of the Beach-Dwelling Species of Cercyon Leach (Coleoptera: Hydrophilidae) of the West Coast of North America
Fig. 3. Habitats in northwestern Washington State, USA. A–C) Sifting method of collecting on sandy beach with kelp wrack (WA18AS-011), D–E) Ulva sp. (Ulvaceae), Zostera sp. (Zosteraceae), and kelp wrack on sandy beach (WA18AS-009), F–G) Kelp wrack on cobble beach (WA17AS-005); H–I) Ulva wrack on pebble beach (WA18AS- 005).
Fig. 4 in Revision of the Beach-Dwelling Species of Cercyon Leach (Coleoptera: Hydrophilidae) of the West Coast of North America
Fig. 4. Distribution of Cercyon species. A) C. dux and C. setulosus, B) C. fimbriatus and C. luniger, C) C. whuljensis and C. dux. Recorded localities from Caterino (2009), Bousquet et al. (2013), Oh et al. (2013), and Yoo et al. (2014).
Fig. 2. Cercyon species, ventral habitus. A in Revision of the Beach-Dwelling Species of Cercyon Leach (Coleoptera: Hydrophilidae) of the West Coast of North America
Fig. 2. Cercyon species, ventral habitus. A) C. whuljensis (BC14MO-008), B) C. dux (WA16AS-015), C) C. fimbriatus (WA13MO-039), D) C. luniger (WA18AS-008), E) C. setulosus (WA16AS-006).
Fig. 9 in Revision of the Beach-Dwelling Species of Cercyon Leach (Coleoptera: Hydrophilidae) of the West Coast of North America
Fig. 9. Cercyon fimbriatus, male (BC16MO-033). A) Habitus, oblique view, B) Head, oblique view, C) Head, ventral view, showing adhesion discs, D) Basal portion of right elytron, E) Prosternum and meso- and metaventrites, ventral view, F) Prosternum and mesoventrites, oblique ventral view.
Fig. 8 in Revision of the Beach-Dwelling Species of Cercyon Leach (Coleoptera: Hydrophilidae) of the West Coast of North America
Fig. 8. Cercyon dux, male (WA16AS-015). A) Habitus, oblique view, B) Head, oblique view, C) Head, ventral view, showing adhesion discs, D) Basal portion of left elytron, E) Prosternum and meso- and metaventrites, ventral view, F) Pro- and mesoventrites, oblique ventral view.
Fig. 10 in Revision of the Beach-Dwelling Species of Cercyon Leach (Coleoptera: Hydrophilidae) of the West Coast of North America
Fig. 10. Cercyon luniger, male (WA18AS-008). A) Habitus, oblique view, B) Head, oblique view, C) Head, ventral view, showing adhesion discs, D) Right anterolateral region of pronotum, E) Prosternum and meso- and metaventrites, ventral view, F) Prosternum and mesoventrites, oblique ventral view.
Fig. 13 in Revision of the Beach-Dwelling Species of Cercyon Leach (Coleoptera: Hydrophilidae) of the West Coast of North America
Fig. 13. Cercyon setulosus, female genitalia (WA17AS-004). b = bursa; g = gonocoxite; IX = ninth segment; ltg = laterotergite of segment VIII; s = spermatheca; sd = spermathecal duct; sg = spermathecal gland.
Fig. 5 in Revision of the Beach-Dwelling Species of Cercyon Leach (Coleoptera: Hydrophilidae) of the West Coast of North America
Fig. 5. Cercyon whuljensis, male (BC14MO-008). A) Habitus, oblique view, B) Head, oblique view, C) Head, ventral view, showing adhesion discs, D) Right anterolateral region of pronotum, E) Prosternum and meso- and metaventrites, ventral view, F) Prosternum and mesoventrites, oblique ventral view.
Fig. 1 in Revision of the Beach-Dwelling Species of Cercyon Leach (Coleoptera: Hydrophilidae) of the West Coast of North America
Fig. 1. Cercyon species, dorsal and lateral habitus, respectively. A, B) C. whuljensis (WA18AS-008), C, D) C. dux (WA16AS-015), E, F) C. fimbriatus (WA17AS-004), G, H) C. luniger (WA17AS-008), I, J) C. setulosus (BC16MO-032).
ScienceDex guides
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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.