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107 results for “Freshwater ecology”
FIGURE 2. A & B, Notodromas trulla n in The freshwater ostracod (Crustacea) genus Notodromas Lilljeborg, 1853 (Notodromadidae) from Japan; taxonomy, ecology and lifestyle
FIGURE 2. A & B, Notodromas trulla n. sp. A, left lateral view of male carapace (LBM 1430005758). B, left lateral view of female carapace (LBM 1430005753). C & D, Notodromas monacha. C, left lateral view of male carapace. D, left lateral view of female carapace. E & F, Notodromas persica. E, left lateral view of male carapace. F, left lateral view of female carapace. G, Notodromas trulla n. sp., left lateral view of posterior region of female carapace (LBM 1430005754). H, Notodromas monacha, left lateral view of posterior region of female carapace. I, Notodromas persica, left lateral view of posterior region of female carapace. Scale bar = 303 µm for A–F, 70 µm for G–I.
FIGURE 5. Notodromas trulla n in The freshwater ostracod (Crustacea) genus Notodromas Lilljeborg, 1853 (Notodromadidae) from Japan; taxonomy, ecology and lifestyle
FIGURE 5. Notodromas trulla n. sp. Colour image of a female, right lateral view. Note the position of the eye lens. This feature occurs on both valves.
FIGURE 2A in New data on the taxonomy, ecology, and conservation of the rediscovered Louisea edeaensis (Bott, 1969) (Brachyura: Potamoidea: Potamonautidae), an endangered freshwater crab from Cameroon
FIGURE 2A. Louisea edeaensis (Bott, 1969), adult male, CW 17.5 mm: Lake Ossa, Cameroon (ZMB Crust. 26930). Dorsal view showing color when freshly collected. Scale bar equals 11 mm. The figure 2B is an adult female not presented in the present study.
FIGURE 3 in New data on the taxonomy, ecology, and conservation of the rediscovered Louisea edeaensis (Bott, 1969) (Brachyura: Potamoidea: Potamonautidae), an endangered freshwater crab from Cameroon
FIGURE 3. Louisea edeaensis (Bott, 1969). Lake Ossa, Cameroon, adult male, CW 17.5 mm (ZMB Crust. 26930). A, G1 ventral view; B, G1 dorsal view; C, G2 ventral view. Scale bar equals 3 mm.
FIGURE 1 in New data on the taxonomy, ecology, and conservation of the rediscovered Louisea edeaensis (Bott, 1969) (Brachyura: Potamoidea: Potamonautidae), an endangered freshwater crab from Cameroon
FIGURE 1. Louisea edeaensis (Bott, 1969). Lake Ossa, Cameroon, adult male, CW 17.5 mm (ZMB Crust. 26930). A, right carpus showing the first (top) and second carpal teeth; B, right merus showing the inferior margin with the large distal tooth and the toothed margin; C, third maxillipeds showing vertical groove on ischium and the absence of a flagellum on the exopod; D, left mandible showing the small lobe at the junction of segments. Scale bar equals 3 mm.
FIGURE 5 in Morphological and molecular evidence for a new species of freshwater crab of the genus Sudanonautes Bott, 1955 (Brachyura: Potamoidea: Potamonautidae) from Cameroon, with notes on its ecology
FIGURE 5. BI/ML tree topology for the freshwater crab taxa from Cameroon included in this study derived from mtDNA sequences corresponding to two loci (partial 16S rRNA and COI genes, 1475 basepairs). BI and ML statistical values on the nodes indicate posterior probabilities and bootstrap support, respectively (%).
FIGURE 3. Sudanonautes tiko n in Morphological and molecular evidence for a new species of freshwater crab of the genus Sudanonautes Bott, 1955 (Brachyura: Potamoidea: Potamonautidae) from Cameroon, with notes on its ecology
FIGURE 3. Sudanonautes tiko n. sp. holotype adult male (CW 36.2 mm) ZMB Crust. 29628. a, left G1 ventral view; b: left G1 dorsal view; c, lleft G2 ventral view. Scale bar equals 2 mm (a, b, c).
FIGURE 1. Sudanonautes tiko n in Morphological and molecular evidence for a new species of freshwater crab of the genus Sudanonautes Bott, 1955 (Brachyura: Potamoidea: Potamonautidae) from Cameroon, with notes on its ecology
FIGURE 1. Sudanonautes tiko n. sp. from Cameroon. Habitus in dorsal view: a, holotype, adult male (CW 36.2 mm) ZMB Crust. 29628, Tamba Forest, Tiko (colour in ethanol); b, paratype, adult male (CW 35.4 mm) ZMB Crust. 29629 from Edea (colour in life). Scale bar equals 16 mm.
FIGURE 6 in Morphological and molecular evidence for a new species of freshwater crab of the genus Sudanonautes Bott, 1955 (Brachyura: Potamoidea: Potamonautidae) from Cameroon, with notes on its ecology
FIGURE 6. Whole animal dorsal views showing living color of three species of Sudanonautes from Cameroon. a, S. africanus adult female, CW 87.4 mm, from Tiko (LZUY-03); b, S. aubryi subadult male, CW 35.8 mm, from Edea, Bolekoa, Littoral Region (LZUY-06); c, S. floweri adult male, CW 35.4 mm, from Yabassi, Parc des Princes, Littoral Region (LZUY-09); d, S. floweri adult female, CW 53.9 mm, from Tiko, Tamba forest, Southwest Region (LZUY-11). Scale bar equals 72 mm (for a), 32 mm (for b), 32 mm (for c), 45 mm (for d).
FIGURE 2. Sudanonautes tiko n in Morphological and molecular evidence for a new species of freshwater crab of the genus Sudanonautes Bott, 1955 (Brachyura: Potamoidea: Potamonautidae) from Cameroon, with notes on its ecology
FIGURE 2. Sudanonautes tiko n. sp. holotype adult male (CW 36.2 mm) ZMB Crust. 29628. a, frontal view of carapace; b, lateral view of carapace sidewall; c, thoracic sternite; d, left third maxilliped frontal view; e, superior view of the merus of the left cheliped showing distal tooth; f, major cheliped showing propodus,dactylus, and carpus. Scale bar equals 10 mm (a), 5 mm (b), 6 mm (c), 1 mm (d), 5 mm (e), 13 mm (f).
F in Ecology and taxonomy of a tree-living freshwater crab (Brachyura: Potamoidea: Potamonautidae) from Kenya and Tanzania, East Africa
F. 2. Potamonautes raybouldi new species. Holotype, adult male, cw 55.7 mm, NMU KMH 11486, from Amani, East Usambara mountains. (A) left third maxilliped; (B) anterior sternum; (C) abdomen; (D) right gonopod 2, ventral aspect; (E) right gonopod 2, ventral aspect; (F) left gonopod 1, ventral aspect; (G) left gonopod 1, dorsal aspect; (H) left gonopod 1 terminal article, ventral aspect; (I) left gonopod 1 terminal article, dorsal aspect. Scale=10 mm (A–C); 5 mm (D–G); 1.2 mm (H, I).
F in Ecology and taxonomy of a tree-living freshwater crab (Brachyura: Potamoidea: Potamonautidae) from Kenya and Tanzania, East Africa
F. 1. Potamonautes raybouldi new species. Holotype, adult male, cw 55.7 mm, NMU KMH 11486, from Amani, East Usambara mountains. (A) Carapace and eyes, dorsal view; (B) cephalothorax, carapace and eyes, frontal view; (C) carpus and merus of right cheliped, dorsal view; (D) carpus and merus of right cheliped, inferior view; (E) right cheliped, frontal view; (F) left cheliped, frontal view; (G) left mandible, frontal view. Scale=14 mm (A–F), 5 mm (G).
Fig. 2 in A Review Of Species Diversity, Distribution And Ecology Of Freshwater Gastropod Molluscs Inhabiting The Ukrainian Transcarpathian
Fig. 2. Selected types of ecotopes in the region of materials sampling, Transcarpathia: 1— Chorna Voda (Mertse) River, near the Gat village (locality 15); 2 — artificial pool in the floodplain of Latorytsia River, near Chop town (locality 8); 3 — stream near the Bukove village (locality 20); 4 — creek in the territory of Carpathian Biosphere Reserve Headquarters (locality 5).
Fig. 3 in A Review Of Species Diversity, Distribution And Ecology Of Freshwater Gastropod Molluscs Inhabiting The Ukrainian Transcarpathian
Fig. 3. Shells of Transcarpathian gastropod molluscs: 1 — Viviparus viviparus (locality 12); 2 — Contectiana contecta (locality 15); 3 — Viviparus sphaeridius (locality 12); 4 — Bithynia tentaculata (locality 15); 5 — Valvata (Cincinna) ambigua (locality 15); 6 — Bithynia troschelii (locality 13); 7 — Valvata (Cincinna) piscinalis (locality 22); 8 — Lithoglyphus naticoides (locality 9); 9–11 — Planorbis planorbis (locality 15); 12, 13 — Planorbarius corneus (locality 15). Scale bars are given for 1–3, 4–8, and 9–13 correspondingly.
Fig. 4 in A Review Of Species Diversity, Distribution And Ecology Of Freshwater Gastropod Molluscs Inhabiting The Ukrainian Transcarpathian
Fig. 4. Shells of Transcarpathian gastropod molluscs: 1 — Radix peregra (locality 55); 2 — R. lagotis (locality 48); 3–5 — Physa acuta (3, 4—from locality 6; 5 — locality 15); 6–8 — Anisus septemgyratus (locality 58); 9–11 — Anisus spirorbis (locality 16); 12–14 — Gyraulus albus (locality 16); 15–17 — Segmentina nitida (locality 14); 18–20 — S. montgazoniana (locality 7); 21–23 — Ancylus fluviatilis (locality 58).
Ecological impacts of unsustainable sand mining: Urgent lessons learned from a critically endangered freshwater cetacean
<p>Sand production, tripled in the last two decades, is an emerging concern for global biodiversity. However, the paucity of sand mining data worldwide prevents understanding the extent of sand mining impacts and how it affects wildlife populations and ecosystems, which is critical for timely mitigation and conservation actions. Integrating remote sensing and field surveys over fourteen years, we investigated mining impacts on the critically endangered Yangtze finless porpoise (<em>Neophocaena asiaeorientalis asiaeorientalis</em>) in Dongting Lake, China. We found that sand mining presented a consistent, widespread disturbance in Dongting Lake. The porpoise strongly avoided mining sites, especially the areas subjected to higher mining intensity. The extensive sand mining significantly contracted the porpoise's range and restricted their habitat use in the lake. Water traffic for sand transportation further blocked the species' river-lake movements, affecting the population connectivity. In addition, mining-induced loss of nearshore habitats, a critical foraging and nursery ground for the porpoise, occurred in nearly 70% of the water channels of our study region. Our findings provide the first empirical evidence on the impacts of unregulated sand extractions on species distribution. Our spatiotemporally explicit approach and findings can support regulation and conservation, yielding broader implications for sustainable sand mining worldwide.</p> <p>This dataset contains (1) sand mining information from 2006–2019 in Dongting Lake, (2) data of porpoise distributions from nine range-wide surveys from 2006–2019, (3) water traffic information at the outlet channel of Dongting Lake from 2001–2019, (4) data of the lake morphology from 2006–2019, (5) codes for all data analyses.</p>
FIGURE 5 in Lost species in Cameroon: rediscovery of the endangered freshwater crab, Louisea balssi (Bott, 1959) (Brachyura: Potamonautidae), with notes on its ecology and conservation
FIGURE 5. Louisea balssi (Bott, 1959), adult male CW 16.2 mm from Man's Crater Lake Manengouba, Cameroon (ZMB Crust. 30319). a, G1 ventral view; b, G1 dorsal view; c, G2 ventral view. Scale bar equals 1 mm (a,b), 2 mm (c).
FIGURE 6 in Lost species in Cameroon: rediscovery of the endangered freshwater crab, Louisea balssi (Bott, 1959) (Brachyura: Potamonautidae), with notes on its ecology and conservation
FIGURE 6. View of Man's Crater Lake Manengouba, Cameroon, showing the steep forested slopes that include the stream habitat of Louisea balssi (Bott, 1959).
FIGURE 3 in Lost species in Cameroon: rediscovery of the endangered freshwater crab, Louisea balssi (Bott, 1959) (Brachyura: Potamonautidae), with notes on its ecology and conservation
FIGURE 3. Louisea balssi (Bott, 1959), adult male CW 16.2 mm from Man's Crater Lake Manengouba, Cameroon (ZMB Crust. 30319). a, right chela frontal view; b, left chela frontal view; c, right cheliped carpus showing the first (distal) and second (proximal) carpal teeth; d, right cheliped merus showing the inferior margin with the large and prominent distal tooth and the toothed margin. Scale bar equals 5 mm (a, b), 2 mm (c, d).
FIGURE 4 in Lost species in Cameroon: rediscovery of the endangered freshwater crab, Louisea balssi (Bott, 1959) (Brachyura: Potamonautidae), with notes on its ecology and conservation
FIGURE 4. Louisea balssi (Bott, 1959), adult male CW 16.2 mm from Man's Crater Lake Manengouba, Cameroon (ZMB Crust. 30319). a, third maxilliped showing the faint vertical groove on the ischium, and the absence of a flagellum on the exopod; a, frontal view of right mandible showing small hard setose process at the junction between the palp segments; b, ventral view of the right mandible. Scale bar equals 2 mm (a), 1 mm (c, d).
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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.