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500 results for “pitting”
The Bear Brook Watershed in Maine, USA: Soil quantitative pit chemistry 1998 - 2010
This dataset includes soil chemistry data for the Bear Brook Watershed in Maine (BBWM). The BBWM consists of two watersheds, the reference East Bear (EB), receiving ambient deposition, and the treated West Bear (WB), which received experimental elevated N+S deposition for 27 years. Quantitative soil pits (71x71 cm) and mini-pits (30x30 cm) were dug at multiple times over the three decades of this experiment, and samples were analyzed for chemistry. Data are available both, as concentrations, as well as nutrient stocks for each watershed.
Root data from transect 2 pits on Hog Island at the Virginia Coast Reserve 1989
Pits (0.30m x 0.30m) dug, roots collected, sorted by size and weighed
FIGURE 3 in A new pit viper of the genus Trimeresurus (Lacépède, 1804) (Squamata: Viperidae) from Southwest China
FIGURE 3. Fresh specimens of Trimeresurus caudornatus sp. nov.: A & B. Dorsal and ventral views of the holotype (male, ZMNH AR1238); C & D. Dorsal and ventral views of the paratype (female, ZMNH AR1239). Scale bar: 2 cm. Photos: S. Shi.
FIGURE 2 in A new pit viper of the genus Trimeresurus (Lacépède, 1804) (Squamata: Viperidae) from Southwest China
FIGURE 2. Trimeresurus caudornatus sp. nov. in life: A. The holotype (male, ZMNH AR1238) and B. The paratype (female, ZMNH AR1239). Photos: L. Ding.
FIGURE 1 in A new pit viper of the genus Trimeresurus (Lacépède, 1804) (Squamata: Viperidae) from Southwest China
FIGURE 1. The Bayesian Inference (BI) and Maximum likelihood analysis (ML) tree of the genus Trimeresurus based on Cyt b, ND4, 12S and 16S. The major ML/BI bootstrap and posterior probability values were presented (the ones lower than 50% denoted as "-").
FIGURE 4 in A new pit viper of the genus Trimeresurus (Lacépède, 1804) (Squamata: Viperidae) from Southwest China
FIGURE 4. Trimeresurus caudornatus sp. nov.: The head of the holotype (ZMNH AR1238) A. Dorsal view; B. ventral view; C. Lateral view; the tail of the holotype: D. Dorsal view, E. Ventral view; and F. hemipenes of the holotype. Scale bar: 5 mm. Photos: S. Shi.
Data from: High detectability with low impact: Optimising large PIT tracking systems for cave-dwelling bats
Passive integrated transponder (PIT) tag technology permits the 'resighting' of animals tagged for ecological research without the need for physical re-trapping. While this is effective if animals pass within centimetres of tag readers, short-distance detection capabilities have prevented the use of this technology with many species. To address this problem, we optimised a large (15 m-long) flexible antenna system to provide a c. 8 m2 vertical detection plane for detecting animals in flight. We installed antennas at two roosting caves, including the primary maternity cave, of the critically endangered southern bent-winged bat (Miniopterus orianae bassanii) in south-eastern Australia. Testing of these systems indicated PIT-tags could be detected up to 105 cm either side of the antenna plane. Over the course of a three-year study, we subcutaneously PIT-tagged 2966 bats and logged over 1.4 million unique detections, with 97% of tagged bats detected at least once. The probability of encountering a tagged bat decreased with increasing environmental 'noise' (unwanted signal) perceived by the system. During the study we mitigated initial high noise levels by earthing both systems, which contributed to an increase in daily detection probability (based on the proportion of individuals known to be alive that were detected each day) from <0.2 (noise level ≥30%) to 0.7-0.8 (noise level 5-15%). Conditional on a low (5%) noise level, model-based estimates of daily encounter probability were highest (>0.8) during peak breeding season when both female and male southern bent-winged bats congregate at the maternity cave. In this paper we detail the methods employed and make methodological recommendations for future wildlife research using large antennas, including earthing systems as standard protocol and quantifying noise metrics as a covariate influencing the probability of detection in subsequent analyses. Our results demonstrate that large PIT antennas can be used successfully to detect small volant species, extending the scope of PIT technology and enabling a much broader range of wildlife species to be studied using this approach.
Data from: Complex longitudinal diversification across South China and Vietnam in Stejneger's pit viper, Viridovipera stejnegeri (Schmidt, 1925) (Reptilia: Serpentes: Viperidae)
Viridovipera stejnegeri is one of the most common pit vipers in Asia, with a wide distribution in southern China and Vietnam. We investigated historical demography and explored how the environment and climatic factors have shaped genetic diversity and the evolutionary history of this venomous snake. A total of 171 samples from 47 localities were sequenced and analysed for two mitochondrial gene fragments and three nuclear genes. Gene trees reveal the existence of two well-supported clades (Southwest China and Southeast China) with seven distinct and strongly supported, geographically structured subclades within V. stejnegeri. Estimation of divergence time and ancestral area suggests that V. stejnegeri originated at ~6.0 Ma in the late Miocene on the Yunnan–Guizhou Plateau. The estimated date of origin and divergence of the island populations of Taiwan and Hainan closely matches the geological origin of the both islands. The mtDNA gene tree reveals the presence of west–east diversification in V. stejnegeri populations. Complex orogenesis and heterogeneous habitats, as well as climate-mediated habitat differentiation including glacial cycles, all have influenced population structure and the distribution of this taxon. The validity of V. stejnegeri chenbihuii is questionable, and this subspecies most probably represents an invalid taxon.
Pit House, Mesa Verde National Monument
Pit houses were the first dwellings at Mesa Verde in Colorado. Created in RealityCapture from 113 images Source: Objaverse 1.0 / Sketchfab
Daves Pit Ax
Large pit found next to 12C pottery kiln Cheshire Source: Objaverse 1.0 / Sketchfab
FIGURES 11–16 in A new genus and a new species of the tribe Mithymnini (Hemiptera: Fulgoromorpha: Nogodinidae) from Namibia, with sternal sensory pits in the adult
FIGURES 11–16. Fovealvus nama gen. et sp. nov., male genitalia. 11, pygofer and anal tube, lateral view; 12, penis, ventral view; 13, penis, lateral view; 14, style, lateral view; 15, style, dorsal view; 16, anal tube, dorsal view.
FIGURES 17–23 in A new genus and a new species of the tribe Mithymnini (Hemiptera: Fulgoromorpha: Nogodinidae) from Namibia, with sternal sensory pits in the adult
FIGURES 17–23. Fovealvus nama gen. et sp. nov., female genitalia. 17, posterior connective lamina of gonapophyses IX and gonospiculum bridge, dorsal view; 18, same, lateral view; 19, anal tube, dorsal view; 20, anal tube, lateral view; 21, anterior connective lamina of gonapophyse VIII and gonocoxa VIII, lateral view; 22, 23, fragment of bursa copulatrix microsculpture.
FIGURES 4–7 in A new genus and a new species of the tribe Mithymnini (Hemiptera: Fulgoromorpha: Nogodinidae) from Namibia, with sternal sensory pits in the adult
FIGURES 4–7. Fovealvus nama gen. et sp. nov. 4, male abdomen, ventral view (SEM); 5, male sternum VI, sensory pits (SEM); 6, female abdomen, ventral view (SEM); 7, female sternum VII, sensory pit (SEM).
FIGURES 1–3 in A new genus and a new species of the tribe Mithymnini (Hemiptera: Fulgoromorpha: Nogodinidae) from Namibia, with sternal sensory pits in the adult
FIGURES 1–3. Fovealvus nama gen. et sp. nov. male. 1, body, dorsal view; 2, body, lateral view; 3, head, ventral view.
FIGURE 6 in A taxonomic revision of the South Asian hump-nosed pit vipers (Squamata: Viperidae: Hypnale)
FIGURE 6. Hypnale zara: WHT 2198, male, 338.0 mm SVL: a,b, c, lateral, dorsal and ventral aspects, respectively, of head; d, e, everted left hemipenis, showing (f) enlarged view of a hemipenial lobe of WHT 5848, 288.0 mm SVL; g, dorsal view of paravertebral scale of WHT 2198; h, medial view of right palatine of WHT 6089, male, 297.0 mm SVL; and i, distribution in Sri Lanka. Scale bars = 1 mm.
FIGURE 4. Hypnale nepa, WHT 6515 in A taxonomic revision of the South Asian hump-nosed pit vipers (Squamata: Viperidae: Hypnale)
FIGURE 4. Hypnale nepa, WHT 6515, neotype, male, 367.0 mm SVL: a, b, c, lateral, dorsal and ventral aspects, respectively, of head; d, e, everted left hemipenis, showing (f) enlarged view of a hemipenial lobe; g, dorsal view of paravertebral scale; h, medial view of right palatine of WHT 6082, male, 292.0 mm SVL; and i, distribution in Sri Lanka: H. nepa (solid circles), H. walli type locality (open circle).
FIGURE 3 in A taxonomic revision of the South Asian hump-nosed pit vipers (Squamata: Viperidae: Hypnale)
FIGURE 3. Hypnale hypnale: a, dosal aspect of neotype, BNHS 2531-759, female, 350.0 mm SVL; b, dorso-lateral aspect of a specimen from Galle, Sri Lanka (not preserved); c, reproduction of drawing of H. hypnale in Russell (1801).
FIGURE 2. Hypnale hypnale, a in A taxonomic revision of the South Asian hump-nosed pit vipers (Squamata: Viperidae: Hypnale)
FIGURE 2. Hypnale hypnale, a, distribution in India; b, distribution in Sri Lanka; based on material examined in present study.
FIGURE 7 in A taxonomic revision of the South Asian hump-nosed pit vipers (Squamata: Viperidae: Hypnale)
FIGURE 7. Hypnale zara: a, dorsal aspect of holotype, BMNH 1946.1.19.96, male, 303.0 mm SVL; b, lateral aspect of WHT 2198, male, 338 mm SVL; c, specimen from Kottawa, Galle, Sri Lanka, not preserved.
FIGURE 1. Hypnale hypnale,WHT 5852 in A taxonomic revision of the South Asian hump-nosed pit vipers (Squamata: Viperidae: Hypnale)
FIGURE 1. Hypnale hypnale,WHT 5852, male, 311.0 mm SVL: a, b, c, lateral, dorsal and ventral aspects, respectively, of head; d, e, everted left hemipenis, showing (f) enlarged view of a hemipenial lobe; g, dorsal view of paravertebral scale; h, medial view of right palatine of WHT 5857, male, 343.0 mm SVL.
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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.