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1,009 results for “water beetles”
Fig. 2 in Redescription of the Neotropical water scavenger beetle genus Phaenostoma (Coleoptera: Hydrophilidae) with description of two new species
Fig. 2. Sternal process of Phaenostoma species. A – P. kontax sp. nov.; B – P. posticatum (Sharp, 1887); C – P. stochasma sp. nov.
Fig. 1 in Redescription of the Neotropical water scavenger beetle genus Phaenostoma (Coleoptera: Hydrophilidae) with description of two new species
Fig. 1. Dorsal and ventral habitus of Phaenostoma posticatum (Sharp, 1887) (Costa Rica). Scale bar = 1.0 mm.
Fig. 4 in Redescription of the Neotropical water scavenger beetle genus Phaenostoma (Coleoptera: Hydrophilidae) with description of two new species
Fig. 4. Aedeagi of Phaenostoma species. A – P. posticatum (Sharp, 1887) (Costa Rica); B – P. kontax sp. nov. (holotype); C – P. stochasma sp. nov. (holotype; Costa Rica); D – P. stochasma sp. nov. (paratype; Venezuela). Scale bar = 0.2 mm.
Fig. 3 in Redescription of the Neotropical water scavenger beetle genus Phaenostoma (Coleoptera: Hydrophilidae) with description of two new species
Fig. 3. Elytron of Phaenostoma kontax sp. nov. A – entire elytron; B – enlargement of elytral surface.
FIGURE 5 in Limnebius acupunctus, a new species of water beetle from Australia and Papua New Guinea (Coleoptera: Hydraenidae)
FIGURE 5. Limnebius acupunctus. Geographical distribution and aedeagal variation. Locality data (clockwise from top): Papua New Guinea, Morobe District, LaoBuolo road; N. Qld., Bushy Creek, MossmanMt. Lewis road; N. S. W., Cabbage Tree Creek; Victoria, Cann River, 12.5 km NNE Cann River; S. A., Cudlee Creek, River Torrens (holotype); N. T., Ellery Gorge, 85 km. W. of Alice Springs; W. A. Kunaguarrina, pool on Turner River; N. T., Adelaide River, at Daly River road crossing.
FIGURES 26 – 28. Pneuminion distribution maps. — 26. P. balfourbrownei. — 27. P. impressum. — 28. P in A revision of the South African endemic water beetle genus Pneuminion Perkins (Coleoptera: Hydraenidae)
FIGURES 26 – 28. Pneuminion distribution maps. — 26. P. balfourbrownei. — 27. P. impressum. — 28. P. nanum.
FIGURES 23 – 25. Pneuminion distribution maps. — 23. P. velamen. — 24. P. semisulcatum. — 25. P. t u b u m in A revision of the South African endemic water beetle genus Pneuminion Perkins (Coleoptera: Hydraenidae)
FIGURES 23 – 25. Pneuminion distribution maps. — 23. P. velamen. — 24. P. semisulcatum. — 25. P. t u b u m.
FIGURES 21 – 22. Pneuminion distribution maps. — 21. All Pneuminion collecting sites. — 22. P in A revision of the South African endemic water beetle genus Pneuminion Perkins (Coleoptera: Hydraenidae)
FIGURES 21 – 22. Pneuminion distribution maps. — 21. All Pneuminion collecting sites. — 22. P. endroedyi.
FIGURE 26 in A revision of the Australian endemic water beetle genus Gymnanthelius Perkins (Coleoptera: Hydraenidae)
FIGURE 26. Habitat of G. porchi and G. opacicollis. Victoria, Gippsland, Tarra River, 1.5 km S. of Tarra Falls. Photo by Nicholas Porch, 12 April 2004.
FIGURE 27 in A revision of the Australian endemic water beetle genus Gymnanthelius Perkins (Coleoptera: Hydraenidae)
FIGURE 27. Muddy streambank microhabitat of G. p orc hi and G. opacicollis. Victoria, Gippsland, Tarra River, 1.5 km S. of Tarra Falls. Photo by Nicholas Porch, 12 April 2004
FIGURES 22 – 25. Gymnanthelius geographical distributions. — 22. G. opacicollis. — 23. G. hieroglyphicus. — 24. G. t u n i c u s. — 25. G in A revision of the Australian endemic water beetle genus Gymnanthelius Perkins (Coleoptera: Hydraenidae)
FIGURES 22 – 25. Gymnanthelius geographical distributions. — 22. G. opacicollis. — 23. G. hieroglyphicus. — 24. G. t u n i c u s. — 25. G. maxipunctus.
FIGURES 18 – 21. Gymnanthelius geographical distributions. — 18. G. clypeatus. — 19. G. cupreus. — 20. G. lamingtonensis. — 21. G in A revision of the Australian endemic water beetle genus Gymnanthelius Perkins (Coleoptera: Hydraenidae)
FIGURES 18 – 21. Gymnanthelius geographical distributions. — 18. G. clypeatus. — 19. G. cupreus. — 20. G. lamingtonensis. — 21. G. porchi.
Fig. 4. South African Helophorus, SEMs.A, C, E & G – H. aethiops J in Out of the Palaearctic: the Helophorus water beetles of the Afrotropical Region (Coleoptera: Helophoridae)
Fig. 4. South African Helophorus, SEMs.A, C, E & G – H. aethiops J. Balfour-Browne, 1954, Kokstad, South Africa; B, D, F & H – H. brumopluvialis sp. nov., Hopefield, South Africa.A–B – head detail; C–D – pronota; E–F – pronotal detail, median groove to far left; G–H – left elytral striation close to apex.
Fig. 3. Afrotropical Helophorus, pronota. A – H in Out of the Palaearctic: the Helophorus water beetles of the Afrotropical Region (Coleoptera: Helophoridae)
Fig. 3. Afrotropical Helophorus, pronota. A – H. aethiopicus Régimbart, 1907, lectotype; B – H. aethiops J. Balfour-Browne, 1954, holotype; C – H. cooperi Orchymont, 1947, holotype; D – H. brumopluvialis sp. nov., holotype; E – H. nyandaruaensis sp. nov., holotype; F – H. simiensis sp. nov., holotype.
Fig. 2. Afrotropical Helophorus, aedeagi. A – H in Out of the Palaearctic: the Helophorus water beetles of the Afrotropical Region (Coleoptera: Helophoridae)
Fig. 2. Afrotropical Helophorus, aedeagi. A – H. aethiopicus Régimbart, 1907, lectotype; B – H. aethiopicus, paralectotype; C – H. aethiops J. Balfour-Browne, 1954, holotype; D–F – H. aethiops J. Balfour-Browne, 1954, Kokstad, South Africa; G – H. cooperi Orchymont, 1947, holotype; H – H. brumopluvialis sp. nov., holotype; I–J – H. brumopluvialis sp. nov., Hopefield, South Africa; K – H. nyandaruaensis sp. nov., holotype; L – H. simiensis sp. nov., holotype. Scale bar = 100 μm.
Fig. 1. Afrotropical Helophorus, habitus. A – H in Out of the Palaearctic: the Helophorus water beetles of the Afrotropical Region (Coleoptera: Helophoridae)
Fig. 1. Afrotropical Helophorus, habitus. A – H. aethiopicus Régimbart, 1907, lectotype; B – H. aethiops J. Balfour-Browne, 1954, holotype; C – H. aethiops J. Balfour-Browne, 1954, Kokstad, South Africa; D – H. cooperi Orchymont, 1947, holotype; E – H. brumopluvialis sp. nov., holotype; F – H. nyandaruaensis sp. nov., holotype; G – H. simiensis sp. nov., holotype. Scale bar = 1 mm.
Data from: Testing metabolic cold adaptation and the climatic variability hypotheses across the latitudinal range of a widespread, supratidal water beetle
<p>Temperature significantly impacts ectotherm physiology, with thermal and metabolic traits varying with latitude but the drivers of this variation remain unclear, despite obvious consequences in the face of ongoing global change. This study explores metabolic cold adaptation (MCA) and the climatic variability hypothesis (CVH) to evaluate local adaptation and phenotypic plasticity of metabolic rates and thermal limits in two populations of the supratidal rockpool beetle <em>Ochthebius lejolisii</em> from localities experiencing contrasting thermal variability. Reciprocal acclimation was conducted under spring temperature regimes of both localities, incorporating local diurnal variation. Metabolic rates were measured by closed respirometry, and thermal tolerance limits estimated through thermography. In line with MCA, the northern population (colder climate) showed higher metabolic rates and Q10s at lower temperatures than the southern population. As predicted by the CVH, the southern population (more variable climate) showed higher upper thermal tolerance but only the northern population was able to acclimate upper thermal limits. This pattern suggests the existence of trade-offs in thermal adaptation in this species, likely increasing the vulnerability of populations on Mediterranean coasts to the projected increases in extreme temperatures under ongoing climate change.</p>
Figs 1–7 in Enochrus algarum sp. nov., a new hygropetric water scavenger beetle from China (Coleoptera: Hydrophilidae: Enochrinae)
Figs 1–7. Morphology of Enochrus algarum sp. nov. 1–3 – habitus (1 – dorsal view, 2 – lateral view, 3 – ventral view); 4 – mesoventral process; 5–6 – head (5 – ventral view, 6 – dorsal view); 7 – aedeagus. 1–2, 6–7 – male, holotype; 3–5 – female, paratype.
Fig. 5 in The Diversity And Species Composition Of Water Beetles (Gyrinidae, Dytiscidae, Hydrophilidae) In A Peat Bog In Belarus
Fig. 5. Principal component analysis ordination according of water beetle assemblages in three different water body types: lakes (L), streams (S), and hollows (H). Complete species names are given in table 2.
Fig. 4 in The Diversity And Species Composition Of Water Beetles (Gyrinidae, Dytiscidae, Hydrophilidae) In A Peat Bog In Belarus
Fig. 4. Non-metric multidimensional scaling ordination according to the characteristic resemblance matrix (Bray-Curtis distance) of water beetle assemblages in three different water body types: lakes (L — samples marked as dots), streams (S — samples marked as pluses), and hollows (H — samples marked as squares).
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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.