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1,568 results for “slope”
Progression of Wave Breaker Types on a Plane Impermeable Slope, Depending on Experimental Design
<p>Data sets from experimental tests carried out at the CIAO fluye and numerical tests carried out in the numerical model IH2VOF.</p>
Figure 7 in A new species of Noblella (Amphibia: Strabomantidae) from the Río Manduriacu Reserve on the Pacific slopes of the Ecuadorian Andes
Figure 7. Call of the paratype (ZSFQ 2502) of Noblella worleyae sp. nov. The recording was made at 22:00 on April 9th, 2017 (air temperature not recorded). (A) Amplitude; (B) Frequency.
Figure 6 in A new species of Noblella (Amphibia: Strabomantidae) from the Río Manduriacu Reserve on the Pacific slopes of the Ecuadorian Andes
Figure 6. Right hand (A) and foot (B) in dorsal view of Noblella worleyae sp. nov. ZSFQ 345, paratype, adult male, SVL = 17.9 mm.
Figure 5 in A new species of Noblella (Amphibia: Strabomantidae) from the Río Manduriacu Reserve on the Pacific slopes of the Ecuadorian Andes
Figure 5. Dorsal and ventral color patterns of Noblella worleyae sp. nov. in life. (A, D) Dorsal pattern and ventral pattern of ZSFQ 2504, paratype, adult male, SVL = 15.5 mm; (B, E) dorsal pattern and ventral pattern of ZSFQ 2502, paratype, adult male, SVL = 15.9 mm; (C, F) dorsal pattern and ventral pattern of ZSFQ 550, paratype, adult male, SVL = 17.3 mm; (G, J) dorsal pattern and ventral pattern of ZSFQ 552, paratype, adult female, SVL = 19.1 mm; (H, K–L) dorsal pattern and ventral pattern of ZSFQ 550, paratype, adult male, SVL = 17.3 mm; (I) dorsal pattern of an uncollected specimen. Photographs by Jaime Culebras (a, b, d, e), José Vieira (c, f), Ross Maynard (g–k) and Scott Trageser (l).
Figure 3 in A new species of Noblella (Amphibia: Strabomantidae) from the Río Manduriacu Reserve on the Pacific slopes of the Ecuadorian Andes
Figure 3. Noblella worleyae sp. nov., holotype, ZSFQ 551, adult female, SVL = 18.1 mm. (A) palmar surface; (B) plantar surface; (C) dorsal view of the head; (D) lateral view of the head. Illustrations by Carolina Reyes-Puig.
Figure 2 in A new species of Noblella (Amphibia: Strabomantidae) from the Río Manduriacu Reserve on the Pacific slopes of the Ecuadorian Andes
Figure 2. Map of Ecuador showing the location of Río Manduriacu Reserve, the type locality (red triangle) of Noblella worleyae sp. nov.
FIGURE 6 in A new species of Eunice Cuvier, 1817 (Polychaeta: Eunicidae) from the slope of the Desventuradas Islands and seamounts of the Nazca Ridge, southeastern Pacific Ocean
FIGURE 6. Different habitats (S22, SF9 and SFX) for Eunice decolorhami n. sp. a) habitat at S22 with predominance of fine sand; b, c) bottom at SF9 and SFX, dominated by coarse calcareous sediments produced by foraminiferous tests, debris of deepsea corals, holopelagic gastropod shells and rhodoliths, with scattered rocky outcrops.
FIGURE 1 in A new species of Eunice Cuvier, 1817 (Polychaeta: Eunicidae) from the slope of the Desventuradas Islands and seamounts of the Nazca Ridge, southeastern Pacific Ocean
FIGURE 1. Location of the stations sampled between 22 October and 1 November 2016 in the CIMAR 22 cruise. Red triangles represent the collection points of the material examined. (Credits: Ariadna Mecho (ESMOI)).
FIGURE 4. Eunice decolorhami n in A new species of Eunice Cuvier, 1817 (Polychaeta: Eunicidae) from the slope of the Desventuradas Islands and seamounts of the Nazca Ridge, southeastern Pacific Ocean
FIGURE 4. Eunice decolorhami n. sp.: a) anterior end, lateral view (paratype SCBUCN 6856); b) chaetiger 3, anterior view (AV); c) chaetiger 8, AV; d) chaetiger 36, AV (paratype); e) chaetiger 48, AV; f) posterior chaetiger, near posterior end, PV; g) limbate chaeta; h) pectinate chaeta; i) falciger chaeta; j) aciculum; k, l) anterior hooded hooks; m) middle hooded hook; n) posterior hooded hook; o) maxillary complex.
FIGURE 2. Eunice decolohami n in A new species of Eunice Cuvier, 1817 (Polychaeta: Eunicidae) from the slope of the Desventuradas Islands and seamounts of the Nazca Ridge, southeastern Pacific Ocean
FIGURE 2. Eunice decolohami n. sp.: a) anterior end, dorsal view (paratype MNHNCL ANN-15036); b) same, ventral view; c) anterior end, lateral view (holotype); d) chaetigers 7–8 (holotype); e) chaetiger 15, posterior view (paratype MNHNCL ANN- 15036); f) chaetiger 36, anterior view (paratype MNHNCL ANN-15036); g) chaetiger 80, anterior view (paratype MNHNCL ANN-15036); h) falciger chaeta; i) pectinate chaeta; j) subacicular hooded hook, lateral view; j´) same, frontal view; k) pygidium, dorsal view (paratype MNHNCL ANN-15036).
Progression of Wave Breaker Types on a Plane Impermeable Slope, Depending on Experimental Design DATASETs
<p>Data set from the CIAO and IH2VOF experimental tests.</p>
Data from: Niche divergence by deep-sea octocorals in the genus Callogorgia across the continental slope of the Gulf of Mexico
Environmental variables that are correlated with depth have been suggested to be among the major forces underlying speciation in the deep sea. This study incorporated phylogenetics and ecological niche models (ENM) to examine whether congeneric species of Callogorgia (Octocorallia: Primnoidae) occupy different ecological niches across the continental slope of the Gulf of Mexico (GoM), and whether this niche divergence could be important in the evolution of these closely related species. Callogorgia americana americana, C. americana delta, and C. gracilis were documented at 13 sites in the GoM (250-1000 m) from specimen collections and extensive video observations. On a first order, these species were separated by depth, with C. gracilis occurring at the shallowest sites, C. a. americana at mid-depths, and C. a. delta at the deepest sites. Callogorgia a. delta was associated with areas of increased seep activity whereas C. gracilis and C. a. americana were associated with narrow, yet warmer, temperature ranges and did not occur near cold seeps. ENM background and identity tests revealed little to no overlap in ecological niches between species. Temporal calibration of the phylogeny revealed the formation of the Isthmus of Panama was a vicariance event that may explain some of the patterns of speciation within this genus. These results elucidate the potential mechanisms for speciation in the deep sea, emphasizing both bathymetric speciation and vicariance events in the evolution of a genus across multiple regions.
Data from: Trophic interactions of fish communities at midwater depths enhance long-term carbon storage and benthic production on continental slopes
Biological transfer of nutrients and materials between linked ecosystems influences global carbon budgets and ecosystem structure and function. Identifying the organisms or functional groups that are responsible for nutrient transfer, and quantifying their influence on ecosystem structure and carbon capture is an essential step for informed management of ecosystems in physically distant, but ecologically linked areas. Here, we combine natural abundance stable isotope tracers and survey data to show that mid-water and bentho-pelagic-feeding demersal fishes play an important role in the ocean carbon cycle, bypassing the detrital particle flux and transferring carbon to deep long-term storage. Global peaks in biomass and diversity of fishes at mid-slope depths are explained by competitive release of the demersal fish predators of mid-water organisms, which in turn support benthic fish production. Over 50% of the biomass of the demersal fish community at depths between 500 and 1800 m is supported by biological rather than detrital nutrient flux processes, and we estimate that bentho-pelagic fishes from the UK–Irish continental slope capture and store a volume of carbon equivalent to over 1 million tonnes of CO2 every year.
Data from: The pyriform egg of the Common Murre (Uria aalge) is more stable on sloping surfaces
The adaptive significance of avian egg shape is a long-standing problem in biology. For many years, it was widely believed that the pyriform shape of the Common Murre (Uria aalge) egg allowed it to either "spin like a top" or "roll in an arc," thereby reducing its risk of rolling off the breeding ledge. There is no evidence in support of either mechanism. Two recent alternative hypotheses suggest that a pyriform egg confers mechanical strength and minimizes the risk of dirt contamination of the blunt end. We present a new hypothesis: that the Common Murre egg's pyriform shape confers stability on the breeding ledge, thus reducing the chance that it will begin to roll. We tested this hypothesis by measuring the stability of Common Murre and Razorbill (Alca torda) eggs of different shapes on slopes of 20°, 30°, and 40° above the horizontal. Common Murre eggs were more stable, and easier to stabilize, than the more elliptical Razorbill eggs. Within Common Murre eggs, more pyriform eggs were more stable. From a fitness perspective, the stability of the Common Murre egg on a slope seems likely to confer an advantage and thus may be a strong force of natural selection favoring the pyriform shape.
FIGURE 2. Bathytanais culterformis, female paratype. A in A new tanaidacean subfamily, Bathytanaidinae (Crustacea: Paratanaididae), from the Australian continental shelf and slope
FIGURE 2. Bathytanais culterformis, female paratype. A) Pereopod 1. B) Pereopod 2. C) Pereopod 3. D) Pereopod 4. E) Pereopod 5. F) Pereopod 6. G) Pleopod. H) Uropod.
FIGURE 1. Bathytanais culterformis, female. A holotype, BL dissected paratype. A in A new tanaidacean subfamily, Bathytanaidinae (Crustacea: Paratanaididae), from the Australian continental shelf and slope
FIGURE 1. Bathytanais culterformis, female. A holotype, BL dissected paratype. A) Dorsal view. B) Cephalothorax. C) Antennule. D) Antenna. E) Labrum. F) Left mandible. G) Right mandible. H) Labium. I) Maxillule and maxilla. J) Maxilliped. K) Epignath. L) Cheliped.
FIGURE 7 in A new tanaidacean subfamily, Bathytanaidinae (Crustacea: Paratanaididae), from the Australian continental shelf and slope
FIGURE 7. Bathytanais fragilis, female paratype, scale bar AF 0.25 mm, GH 0.1 mm. A) Pereopod 1. B) Pereopod 2. C) Pereopod 3. D) Pereopod 4. E) Pereopod 5. F) Pereopod 6. G) Pleopod. H) Uropod.
FIGURE 4. Bathytanais arenamans, female paratype. A in A new tanaidacean subfamily, Bathytanaidinae (Crustacea: Paratanaididae), from the Australian continental shelf and slope
FIGURE 4. Bathytanais arenamans, female paratype. A) Pereopod 1. B) Pereopod 2. C) Pereopod 3. D) Pereopod 4. E) Pereopod 5. F) Pereopod 6. G) Pleopod. H) Uropod.
FIGURE 3. Bathytanais. arenamans, female A holotype, BL dissected paratype. A in A new tanaidacean subfamily, Bathytanaidinae (Crustacea: Paratanaididae), from the Australian continental shelf and slope
FIGURE 3. Bathytanais. arenamans, female A holotype, BL dissected paratype. A) Dorsal view. B) Cephalothorax. C) Antennule. D) Antenna. E) Labrum. F) Left mandible. G) Right mandible. H) Maxillule. I) Maxilla. J) Labium K) Maxilliped. L) Cheliped.
FIGURE 6. Bathytanais fragilis, female paratype scale bars AB 1 in A new tanaidacean subfamily, Bathytanaidinae (Crustacea: Paratanaididae), from the Australian continental shelf and slope
FIGURE 6. Bathytanais fragilis, female paratype scale bars AB 1 mm, EI 0.02 mm, J 0.5 mm. A) Antennule. B) Antenna. C) Labrum. D, Labium. E) Left mandible. F) Right mandible. G) Maxillule. H) Maxilla. I) Maxilliped. J) Cheliped. K) Cheliped propodus.
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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.