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43,008 results for “n”
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).
Throughfall and wet deposition N data for C1, 2001.
A field study at a Rocky Mountain spruce-fir-pine forest was undertaken to obtain measures of canopy nitrogen uptake. Wet deposition, dry deposition, and throughfall fluxes of ammonium and nitrate were measured during the 2001 growing season. Estimation of CNU, for both ammonium and nitrate, was obtained by subtracting throughfall (TF) flux from the sum of wet deposition (WD) and dry deposition (DD): CNU = WD+DD-TF. Total dissolved nitrogen was also determined for TF and WD samples. The organic nitrogen flux in WD and TF was determined by subtracting the inorganic N flux (sum of ammonium and nitrate fluxes) from total dissolved N fluxes.
Plant biomass and N content data for South of saddle, 1990 - 1991.
The data set includes biomass and nitrogen concentration data for both roots and shoots of several alpine plant species, measured at intervals through the 1990 and 1991 growing seasons. In addition, plant N pools are calculated by multiplying N concentration times biomass for both roots and shoots. Total pool sizes can be calculated by pooling the root and shoot pools. The data provide a seasonal view of the N dynamics of the alpine species tested.
Soil and microbial N data for Saddle and South of saddle, 1992.
Net nitrogen mineralization, nitrification, and microbial nitrogen were measured in dry and moist meadow plots on Niwot Ridge from early June to mid-October 1992. Dry meadow plots in the City of Boulder Watershed had been fertilized with N during the two years prior to measurements, and both dry and moist meadow plots in the Saddle were being watered and fertilized concurrent to measurements.
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.
Soil water and microbial N data for Saddle, 1993.
The effects of water, carbon (glucose), or nitrogen ((NH4)2SO4) additions on N transformations and the chloroform-labile microbial N pool were assessed in laboratory incubations of moist meadow soil collected from the T1M trace gas study plot on Niwot Ridge. These incubations were conducted at monthly intervals during the snow-free season of 1993, to detect any seasonal changes in the microbial response to different amendments. Soil respiration was measured concurrently.
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.
Marsh plant species C:H:N data for Rowley River tidal creeks associated with long term fertilization experiments, Rowley and Ipswich, MA.
Marsh plant species C:H:N data for Rowley River tidal creeks associated with long term fertilization experiments, Rowley and Ipswich, MA. The TIDE project aims to simulate eutrophication on a large scale by the addition of NO3- aiming to reach 70µM concentrations from May to September every year during the growing season. This fertilization of the marsh has been going on at Sweeney Creek since the 2004 growing season through 2011 and at Clubhead Creek in 2005 and from 2009 till 2011.
Fiddler crab impacts from observational study 2020-21: Aboveground & diatom biomass, plant height, percent N, burrow & mussel density, belowground biomass, and organic matter
The fiddler crab, Minuca pugnax, expanded its range into the Gulf of Maine recently and was first observed in the Plum Island Estuary in 2014. In 2020 and 2021, we investigated the impact of this burrowing crab on benthic microalgal biomass, sediment properties and the above- and belowground biomass of the cordgrass, Spartina alterniflora. To accomplish this, we conducted a control-impact study in plots with and without fiddler crabs in three marshes in the PIE-LTER: Sawyer, Clubhead, and Metcalf. In its historical range (i.e., south of Cape Cod), M. pugnax, enhances Spartina aboveground biomass. In contrast, we found that, on average, when fiddler crabs were present, aboveground biomass was 40% lower in the PIE-LTER. We also found that belowground biomass was 30% lower and benthic microalgal biomass was 45% lower when fiddler crabs were present, which is in line with our expectations. Because fiddler crabs reduced the biomass of foundational primary producers in its expanded range, our results imply that M. pugnax can influence other saltmarsh functions such as carbon storage and accretion as they expand north. More broadly, our results suggest that as species expand or shift their range with climate change, not only can they have profound impacts in their new ranges, but that those impacts can be the inverse of what is seen in their historical ranges.
Long-term N-fertilized vegetation plots on Hog Island, Virginia Coastal Barrier Islands, 1992-2014
This dataset contains results from a long-term fertilization study on the dunes of Hog Island, Virginia.
Fig. 1723. – 1719,Orapa uwembaiensis n in Nouvelles Cigales originaires de Tanzanie (Rhynchota, Auchenorhyncha, Cicadidae)
Fig. 1723. – 1719,Orapa uwembaiensis n. sp. (17, mâle holotype; 18, femelle allotype; 19, vue rapprochée de la cymbale et du deuxième latérotergite du côté gauche). – 2023, Kageralna dargei n. gen., n. sp., holotype (20, vue dorsale; 21, vue ventrale rapprochée et partielle du côté droit; 22, profil du côté gauche; 23, vue rapprochée du bloc génital, côté droit).
Fig. 1216. – 1214,Afzeliada mikessensis n in Nouvelles Cigales originaires de Tanzanie (Rhynchota, Auchenorhyncha, Cicadidae)
Fig. 1216. – 1214,Afzeliada mikessensis n. sp. (12, mâle holotype; 13, femelle allotype; 14, bloc génital vu de trois quarts côté droit). – 1516, Afzeliada iringana n. sp. (15, mâle holotype en vue dorsale; 16, bloc génital en vue postérieure, côté droit).
Figures 10 et 11 Tanna ventriroseus n in Éthologie sonore et statut acoustique de quelques Cigales thaïlandaises, incluant la description de deux espèces nouvelles (Hemiptera : Auchenorhyncha*, Cicadoidea, Cicadidae)
Figures 10 et 11 Tanna ventriroseus n. sp. – 10 et 11, Conformation des pièces génitales d'un paratype ♂. (Dessins Hélène LeRuyet-Tan)
Figs. 12-17. Pygophores, dorsal view. 12, N in New Species of Neotibilis Grazia & Barcellos (Hemiptera: Pentatomidae: Pentatomini)
Figs. 12-17. Pygophores, dorsal view. 12, N. (N.) parva; 13, N. (N.) chiapensis; 14, N. (N.) panamensis; 15, N. (N.) biguttata; 16, N. (N.) costaricensis; 17, N. (N.) fulvicornis. (from Grazia & Barcellos, 1994). Scale 1mm.
Figs. 7-11. N in New Species of Neotibilis Grazia & Barcellos (Hemiptera: Pentatomidae: Pentatomini)
Figs. 7-11. N. (N.) claviformis sp. nov. 7-8 parameres. 7, dorsal view of right paramere; 8, latero-external view of right paramere. 9-11 Phallus. 9, lateral view; 10, ventral view; 11, dorsal view (sg = secundary gonopore; ph = phalloteca; prv 1 = processus vesicae 1; prv 2 = processus vesicae 2).
Figs. 1-6. Pygophore dorsal and ventral views respectively. 1-2 N in New Species of Neotibilis Grazia & Barcellos (Hemiptera: Pentatomidae: Pentatomini)
Figs. 1-6. Pygophore dorsal and ventral views respectively. 1-2 N. (N.) claviformis sp. nov., 3-4, N. (N.) ecuadorensis sp. nov. 5-6, N. (N.) manauara sp. nov. (dr = dorsal rim; par = paramere; vr = ventral rim; X = proctiger). Scale 1mm.
Data and code for "Homeric -phi(n) is an oblique case marker"
<p>This repository contains the data and R code for the paper "Homeric -<em>phi(n)</em> is an oblique case marker," <em>Transactions of the Philological Society</em> 118:343–375, 2020. doi: <a href="https://doi.org/10.1111/1467-968X.12192">10.1111/1467-968X.12192</a>. </p>
Raw data used in Kumar et al. 2020: Barley shoot biomass responds strongly to N:P stoichiometry and intraspecific competition, whereas roots only alter their foraging
<p>Raw data used in Kumar et al. 2020: Barley shoot biomass responds strongly to N:P stoichiometry and intraspecific competition, whereas roots only alter their foraging</p>
FIG. 4. — Lepthyphantes ensiferus Barrientos n in The high complexity of Micronetinae Hull, 1920 (Araneae, Linyphiidae) evidenced through ten new cave-dweller species from the Morocco
FIG. 4. — Lepthyphantes ensiferus Barrientos n. sp., genital organs: A, B, male copulatory bulb, retrolateral view (A), ventral view (B); C, schema of the embolic division; D, E, epigyne, ventral view (D), lateral view (E). Abbreviations: see Material and methods. Scale bar: 0.5 mm.
FIG. 7. — Lepthyphantes lamellatus Barrientos n in The high complexity of Micronetinae Hull, 1920 (Araneae, Linyphiidae) evidenced through ten new cave-dweller species from the Morocco
FIG. 7. — Lepthyphantes lamellatus Barrientos n. sp., genital organs: A, B, male copulatory bulb, retrolateral view (A), ventral view (B); C, diagram of the embolic division; D, E, epigyne, ventral view (D), lateral view (E). Abbreviations: see Material and methods. Scale bar: 0.5 mm.
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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.