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18,820 results for “northing”
Geum and Kobresia soil inorganic and organic property data for Saddle and North of Tvan, 1993.
This study was initiated to examine bulk density and organic matter content differences between soils where Geum (Acomastylis) rossii and Kobresia myosuroides were present. A subset of samples were also measured for total C, N, and P. Paired plots were randomly selected in locations where Kobresia and Geum populations were adjacent to one another. Soil samples were collected from 35 plots, 22 and 13 of which had southerly and northerly aspects, respectively. Soil cores were removed with 3.5-cm interior diameter PVC pipe that was driven into the tundra by use of a rubber mallet. The minimum depth of individual cores was 9 cm, and these depths were recorded at the time of removal (15 July, 19 July, 22 July, and 9 August 1993).
Pocket gopher esker-krummholz distance data for Martinelli slope and North of Tvan, 1995.
Two ares of Niwot Ridge were examined for simultaneous occurrences of krummholz and eskers created by Thomomys talpoides (Northern pocket gopher) burrowing, to establish a relationship between snowpack and gopher habitat. The krummholz east and northeast of the Martinelli slope and the krummholz north of T-van were surveyed for the abundance of gopher eskers. Using a tape measure, the minimum and maximum distances of the eskers from the krummholz vegetation were measured, with a value of 0 m indicating that the nearest soil core was immediately adjacent to or actually underlying a branch of the tree. With the use of a compass, both the northernmost and southernmost bearings were measured from the krummholz to the esker. The krummholz were tagged at the northeasternmost point whenever possible for consistency, or the northernmost branches of the leeward side of the tree island. All measurements were taken from the nearest protruberance of the krummholz.
Alpine tundra and krummholz soil temperature data for Saddle and North of Tvan, 1994 - 1999.
Growing season soil temperatures (typically at 2 depths in a given location) were measured (1) to quantify the soil temperature environment across the landscape mosaic of alpine tundra, and (2) to compare temperatures between tundra and adjacent krummholz vegetation. Measurements were made at sites differing in aspect (south-facing and north-facing) and moisture conditions (dry, mesic, and wet). In addition, soil temperature was measured at a site characterized by persistent snow cover, as well as at sites within and adjacent to a krummholz patch. Data are presently collected using an Omnidata DP212 datapod.
N fertilization experiment plant species composition data for north of the saddle from 2011 to ongoing, yearly
In August 2010, N fertilization plots were established over a gradient of Geum rossii (Aco) and Deschampsia caespitosa (Des) cover in an area of moist-wet meadow alpine tundra north of the Saddle on Niwot Ridge. A total of 20 plots were set up, with 1X-10X being control plots where no nitrogen (N) was added, and 1N-10N being fertilization plots where N was added. Control and fertilized plots were paired so that pairs had the same percent cover of Aco and Des. Initially in 2010, N addition plots were fertilized at a rate of 28.8 g N x m^2 x yr^-1 (72 g of slow-release Osmocote (40-0-0)). In 2011 fertilization rate was reduced to N x m^2 x yr^-1 (25 g Osmocote (2011-2013), Duration Urea 120, 40-0-0, SGN 150 (2014-on).
Soil and microbial N data for Saddle, South of saddle, North of saddle, 1993.
Gross N mineralization, respiration, and microbial biomass N were measured using soil from dry, moist, and wet meadow sites on Niwot Ridge at 3 times during the year: immediately following snowmelt, at approximately peak plant biomass, and following aboveground senescence. Microbial biomass N was measured on replicate soil cores from plots of each community, using the chloroform fumigation-extraction technique. Those cores were subsequently composited and subsamples were incubated at 15 degrees Celsius in the laboratory for measurement of CO2 evolution and 15N pool dilution-based estimations of gross mineralization.
Fine root biomass and N content data for Saddle, South of saddle, North of saddle, 1994.
Root production was estimated in dry, moist, and wet meadow communities on Niwot Ridge using a root-ingrowth core method. Columns of root-free soil were established on 1 June 1994 and were re-cored on 10 August and 23 September 1994 for measurement of fine root mass and nitrogen content.
Year 2001, 15 minute measurements of stage, water temperature, conductivity, dissolved oxygen, and pH on the Ipswich R. mainstem at North Reading, just upstream of Rt. 28 (~48 km2 drainage area).
Year 2001, continuous measurements, every 15 minutes, were made of stage, water temperature, conductivity, dissolved oxygen, and pH in a small headwater stream draining a moderate sized, mixed land use watershed. Measurements are for part of the ice free season (June – December). Discharge is determined from stage using discharge vs stage regressions. Several day gaps occur periodically due to removal for recalibration.
Year 2002, 15 minute measurements of stage, water temperature, conductivity, dissolved oxygen, and pH on the Ipswich R. mainstem at North Reading, just upstream of Rt. 28 (~48 km2 drainage area).
Year 2002, continuous measurements, every 15 minutes, were made of stage, water temperature, conductivity, dissolved oxygen, and pH in a small headwater stream draining a moderate sized, mixed land use watershed. Measurements are for the ice free season (March – December). No Discharge was determined because beaver activity prevented rating curve estimate. Several day gaps occur periodically due to removal for recalibration.
Year 2003, 15 minute measurements of stage, water temperature, conductivity, dissolved oxygen, and pH on the Ipswich R. mainstem at North Reading, just upstream of Rt. 28 (~48 km2 drainage area).
Year 2003, continuous measurements, every 15 minutes, were made of stage, water temperature, conductivity, dissolved oxygen, and pH in a small headwater stream draining a moderate sized, mixed land use watershed. Measurements are for part of the ice free season (March – December). No Discharge was determined because beaver activity prevented rating curve estimate. Several day gaps occur periodically due to removal for recalibration.
Aboveground biomass data from a Spartina alterniflora-dominated salt marsh plots in North Inlet, Georgetown, SC.
Aboveground biomass is determined non-destructively at permanent plots in a Spartina alterniflora-dominated salt marsh in North Inlet, Georgetown, SC. There are five sites. Two sites are low marsh; three sites are high marsh. One site in the high marsh is fertilized with nitrogen and phosphorus.
Annual productivity at Spartina alterniflora-dominated salt marsh plots in North Inlet, Georgetown, SC.
Annual productivity is determined from aboveground biomass data in a Spartina alterniflora-dominated salt marsh plots in North Inlet, Georgetown, SC. Aboveground biomass is determined non-destructively. There are five sites. Two sites are low marsh; three sites are high marsh. One site in the high marsh is fertilized with nitrogen and phosphorus.
Marsh surface elevation data in fertilization plots of a Spartina alterniflora-dominated salt marsh at Goat Island, North Inlet, Georgetown, SC.
A Surface Elevation Table (SET) is used to measure changes in the elevation of the marsh platform in fertilization plots of a Spartina alterniflora-dominated marsh on the Goat Island, North Inlet, Georgetown, SC.
Nutrient concentrations from porewater samples at Spartina alterniflora-dominated salt marsh plots in North Inlet, Georgetown, SC.
Nutrient concentrations from permanent porewater samplers in a Spartina alterniflora-dominated salt marsh in North Inlet, Georgetown, SC. There are six sites. Two sites are low marsh; four are high marsh. One site in the high marsh is fertilized with nitrogen and phosphorus. One site in the high marsh is located in a dieback. Sampling at the dieback site occurred from 2006-2010.
Figs. 21-24 in On Hesperocranum, A New Spider Genus from Western North America (Araneae, Liocranidae)
Figs. 21-24. Hesperocranum rothi, new species, male palp. 21. Prolateral view. 22. Retrolateral view. 23. Prolateral view of embolar region. 24. Ventral view.
Figs. 17-20 in On Hesperocranum, A New Spider Genus from Western North America (Araneae, Liocranidae)
Figs. 17-20. Hesperocranum rothi, new species, female. 17. Chelicerae and eye region, anterior view. 18. Eye region, dorsal view. 19. Epigynum, ventral view. 20. Posterior median spinnerets, anterior end towards top of photo. Original magnification = 700 x.
Fig. 13 in The bony fishes (Teleostei) caught by industrial trawlers off the Brazilian North coast, with insights into its conservation
Fig. 13. Species of the order Perciformes, family Mullidae, (A) Upeneus parvus AZUSC 5445, 167 mm TL, family Kyphosidae, (B) Kyphosus vaigiensis MPEG 35156, 524 mm TL, family Gobiidae, (C) Priolepis dawsoni not cataloged, AZUSC 5667, 80 mm TL, family Acanthuridae, (D) Acanthurus chirurgus MPEG 35178, 85 mm TL, family Sphyraenidae, (E) Sphyraena guachancho MPEG 35063, 297 mm TL.
Fig. 12 in The bony fishes (Teleostei) caught by industrial trawlers off the Brazilian North coast, with insights into its conservation
Fig. 12. Species of the order Perciformes, family Sciaenidae, (A) Ctenosciaena gracilicirrhus MPEG 35609, 145 mm TL, (B) Cynoscion acoupa not cataloged, 310 mm TL, (C) Cynoscion jamaicensis MPEG 35588 173 mm TL, (D) Cynoscion leiarchus MPEG 35229 183 mm TL, (E) Cynoscion microlepidotus not cataloged, 320 mm TL, (F) Cynoscion similis MPEG 35042 254 mm TL, (G) Cynoscion steindachneri not cataloged, 250 mm TL, (H) Cynoscion virescens not cataloged, 340 mm TL, (I) Isopisthus parvipinnis MPEG 35051, 175 mm TL, (J) Larimus breviceps MPEG s/n, 150 mm TL, (K) Macrodon ancylodon MPEG 35059, 230 mm TL, (L) Ophioscion punctatissimus AZUSC 5178, 160 mm TL.
Fig. 7 in The bony fishes (Teleostei) caught by industrial trawlers off the Brazilian North coast, with insights into its conservation
Fig. 7. Species of the order Aulopiformes, family Synodontidae, (A) Saurida caribbaea MPEG 35598, 94 mm TL, (B) Synodus bondi MPEG 35202, 262 mm TL, (C) Synodus poeyi not cataloged, 160 mm TL, order Holocentriformes, family Holocentridae, (D) Holocentrus adscensionis AZUSC 5180, 210 mm TL, (E) Myripristis jacobus AZUSC 5181, 128 mm TL, order Ophidiiformes, family Ophidiidae, (F) Brotula barbata AZUSC 5141, 202 mm TL, (G) Lepophidium brevibarbe MPEG 35849, 234 mm TL, order Lophiiformes, family Antennariidae, (H) Antennarius striatus MPEG 35201, 114 mm TL, family Ogcocephalidae, (I) Halieutichthys aculeatus MPEG 35851, 36 mm TL, (J) Ogcocephalus nasutus MPEG 35167, 131 TL, (K) Ogcocephalus notatus AZUSC 5068, 120 mm TL, (L) Ogcocephalus pumilus MPEG 34615, 157 mm TL, order Beloniformes, family Exocoetidae, (M) Parexocoetus hillianus not cataloged, 150 mm TL, order Gasterosteiformes, family Fistulariidae, (N) Fistularia petimba AZUSC 5182, 560 mm TL, (O) Fistularia tabacaria AZUSC 5669, 590 mm TL, (O) Scorpaena brasiliensis MPEG 35141, 119 mm TL, (Q) Scorpaena isthmensis AZUSC 5644, 97 mm TL.
Fig. 11 in The bony fishes (Teleostei) caught by industrial trawlers off the Brazilian North coast, with insights into its conservation
Fig. 11. Species of the order Perciformes, family Pomacanthidae, (A) Holacanthus ciliaris not cataloged, 350 mmm TL, family Polynemidae, (B) Polydactylus virginicus MPEG 35182 306 mm TL, family Scaridae, (C) Sparisoma axillare not cataloged, 170 mm TL, family Sparidae, (D) Sparisoma frondosum AZUSC 5446, 120 mm TL, (E) Calamus penna MPEG 35709, 226 mm TL, (F) Calamus pennatula not cataloged, 230 mm TL.
Fig. 9 in The bony fishes (Teleostei) caught by industrial trawlers off the Brazilian North coast, with insights into its conservation
Fig. 9. Species of the order Perciformes, family Carangidae, (A) Alectis ciliaris MPEG 35701, 221 mm TL, (B) Caranx bartholomaei MPEG 35181, 323 mm TL, (C) Caranx crysos MPEG 35183, 350 mm TL, (D) Decapterus macarellus not cataloged, 220 mm TL, (E) Decapterus punctatus AZUSC 5551, 176 mm TL, (F) Decapterus tabi not cataloged, 240 mm TL, (G) Oligoplites saliens AZUSC 4660, 280 mm TL, (H) Selar crumenophthalmus MPEG 35137, 266 mm TL, (I) Selene setapinnis MPEG 35190, 243 mm TL, (J) Seriola dumerili not cataloged, 200 mm TL, (K) Trachinotus cayennensis MPEG 34410, 265 mm TL.
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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.