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174 results for “Organic C”
Comparing vertical accretion, organic carbon (C) sequestration, and nitrogen burial between a natural, never diked tidal salt marsh and a hydrologically restored tidal salt marsh on Sapelo Island, Georgia.
Restoration of tidal marshes throughout the 20th century have attempted to bring back important functions of natural tidal systems. In this study, vertical accretion, organic carbon (C) sequestration, and nitrogen burial were compared between a natural, never diked tidal salt marsh and a hydrologically restored tidal salt marsh on Sapelo Island, Georgia to examine the impacts of restoration years later. On Sapelo Island there are two marshes near the University of Georgia Marine Institute, one of which is a natural marsh, and one of which is a restored marsh. The restored marsh had been diked in 1948, and the dike was breached, allowing for the marsh to be restored, in 1956. Soil cores were collected from both marshes, and the sediments were analysed for Nitrogen and Carbon concentrations and bulk density. This analysis was used to determine accretion rates for the two marshes as well as changes in the restored marsh since the dike was breached. Nitrogen burial, carbon sequestration, and soil accretion in the restored marsh as compared to the natural marsh were the focus of this study.
Long term response of arctic tussock tundra to thermal erosion features: A modeling analysis. Tussock tundra regrowth after a thermal erosion event: Simulation C - increased Phase I and Phase II soil organic matter
The Multiple Element Limitation (MEL) model is used to simulate the recovery of Alaskan arctic tussock tundra to thermal erosion features (TEFs) caused by permafrost thaw and mass wasting. TEFs could be significant to regional carbon (C) and nutrient budgets because permafrost soils contain large stocks of soil organic matter (SOM) and TEFs are expected to become more frequent as climate warms. These simulations deal only with recovery following TEF stabilization and do not address initial losses of C and nutrients during TEF formation. To capture the variability among and within TEFs, we simulate a range of post-stabilization conditions by varying the initial size of SOM pools and nutrient supply rates. This file contains the results for 100 years of tussock tundra recovery after a thermal erosion event. This simulation is of TEF recovery with increased Phase I and Phase II soil organic matter compared to the base simulation. Data is presented for day 250 of each year.
Stable isotope and conservative tracer data used to estimate uptake of stream water dissolved organic carbon (DOC) through a whole-stream addition of a ¹³C-DOC tracer coupled with laboratory measurements of bioavailability of the tracer and stream water DOC using lability profiling with bioreactors
We performed a whole-stream addition of a ¹³C-DOC tracer and made laboratory measurements of the biological availability of the tracer as well as stream water DOC. The study was performed in October 2002 in a 1.27 km stretch of the third-order White Clay Creek in southeastern Pennsylvania. The tracer was prepared as a cold-water leachate of ¹³C-labeled tulip poplar saplings and it was added to the stream along with sodium bromide, a conservative tracer, over a 2-h period. Stream water samples were collected at 8 downstream stations over an 8-h period, filtered, and analyzed for concentrations of bromide and DOC. DOC was measured by Pt-catalyzed, persulfate oxidation, Br- was analyzed by ion chromatography, and C isotope samples were rotary evaporated, acidified, lyophilized, combusted, and the CO₂ analyzed with an elemental analyzer interfaced with an isotope ratio mass spectrometer. Lability profiling of the ¹³C-DOC tracer and stream water DOC were performed with a series of plug-flow bioreactors of increasing empty-bed contact times with the concentration of biodegradable DOC operationally defined as the difference between the DOC concentrations in the influent and effluent waters of the bioreactors. The bioreactor measurements were performed 2 days after the whole-stream release. Data were analyzed to estimate the uptake of stream water DOC associated with labile and semi-labile fraction of biodegradable DOC. These data have been previously used in a 2008 publication in Freshwater Biology, doi:10.1111/j.1365-2427.2007.01941.x.
Fig.ç24.A mblyops sp. 3, male (NSMT-Cr 21369). A, anterior part of body (dorsal); B, eyeplate (right, dorsal); C, antennal scale (le, ventral); D, pair of genital organs; E, sternal process and proximal parts of genital organs; F, rst pleopod (le); G, proximal part of uropodal endopod (le, ventral). in The Genus Amblyops (Crustacea: Mysida: Mysidae: Erythropinae) from East Asia and Australia, with Descriptions of Ten New Species
Fig.ç24.A mblyops sp. 3, male (NSMT-Cr 21369). A, anterior part of body (dorsal); B, eyeplate (right, dorsal); C, antennal scale (le, ventral); D, pair of genital organs; E, sternal process and proximal parts of genital organs; F, rst pleopod (le); G, proximal part of uropodal endopod (le, ventral).
Fig.ç15.A mblyops sagamiensis sp. nov., A–E, holotype, female (NSMT-Cr 21361); F, allotype, male (NSMT-Cr 21362). A, second thoracopod (le); B, third thoracopod (le); C, distal part of third thoracopodal endopod (le); D, sixth thoracopod (le); E, eighth thoracopodal endopod with oostegite (le); F, pair of genital organs and sternal process. in The Genus Amblyops (Crustacea: Mysida: Mysidae: Erythropinae) from East Asia and Australia, with Descriptions of Ten New Species
Fig.ç15.A mblyops sagamiensis sp. nov., A–E, holotype, female (NSMT-Cr 21361); F, allotype, male (NSMT-Cr 21362). A, second thoracopod (le); B, third thoracopod (le); C, distal part of third thoracopodal endopod (le); D, sixth thoracopod (le); E, eighth thoracopodal endopod with oostegite (le); F, pair of genital organs and sternal process.
Fig.ç13.A mblyops paci cus sp. nov., holotype, male (NSMT-Cr 21355). A, rst thoracopodal endopod (le); B, second thoracopod (right); C, third thoracopod (right); D, eighth thoracopodal exopod (right); E, pair of genital organs and sternal process; F, endopod of fourth pleopod (right); G, distal part of endopod of fourth pleopod (right); H, exopod of h pleopod (right), I, uropod and telson (dorsal); J, posterior part of telson (dorsal). in The Genus Amblyops (Crustacea: Mysida: Mysidae: Erythropinae) from East Asia and Australia, with Descriptions of Ten New Species
Fig.ç13.A mblyops paci cus sp. nov., holotype, male (NSMT-Cr 21355). A, rst thoracopodal endopod (le); B, second thoracopod (right); C, third thoracopod (right); D, eighth thoracopodal exopod (right); E, pair of genital organs and sternal process; F, endopod of fourth pleopod (right); G, distal part of endopod of fourth pleopod (right); H, exopod of h pleopod (right), I, uropod and telson (dorsal); J, posterior part of telson (dorsal).
Fig.ç5.A mblyops izuensis sp. nov., holotype, male (NSMT-Cr 21348). A, eyeplate (le); B, antennular peduncle (le, dorsal); C, antenna (le, dorsal); D, antennal peduncle (le, dorsal); E, mandible and mandibular palp (le); F, maxillule (le); G, maxilla (le); H, rst thoracopod (le); I, second thoracopodal endopod (right); J, K, genital organ and sternal process. in The Genus Amblyops (Crustacea: Mysida: Mysidae: Erythropinae) from East Asia and Australia, with Descriptions of Ten New Species
Fig.ç5.A mblyops izuensis sp. nov., holotype, male (NSMT-Cr 21348). A, eyeplate (le); B, antennular peduncle (le, dorsal); C, antenna (le, dorsal); D, antennal peduncle (le, dorsal); E, mandible and mandibular palp (le); F, maxillule (le); G, maxilla (le); H, rst thoracopod (le); I, second thoracopodal endopod (right); J, K, genital organ and sternal process.
Fig.ç21.A mblyops timorensis sp. nov., holotype, male (NSMT-Cr 21366). A, rst thoracopodal endopod (right); B, second thoracopodal endopod (le); C, seventh thoracopodal exopod (le); D, genital organ (le, lateral); E, second pleopod (right); F, fourth pleopod (right); G, uropod and telson (dorsal); H, uropodal endopod (right, ventral); I, telson (dorsal). in The Genus Amblyops (Crustacea: Mysida: Mysidae: Erythropinae) from East Asia and Australia, with Descriptions of Ten New Species
Fig.ç21.A mblyops timorensis sp. nov., holotype, male (NSMT-Cr 21366). A, rst thoracopodal endopod (right); B, second thoracopodal endopod (le); C, seventh thoracopodal exopod (le); D, genital organ (le, lateral); E, second pleopod (right); F, fourth pleopod (right); G, uropod and telson (dorsal); H, uropodal endopod (right, ventral); I, telson (dorsal).
Alaimus elegans de Man. α, anterior r i end, 1/ 12, ok. 3, x 600. b, tail obj. 7, ok. 3, x 360. c, region of the female organs obj. 7, ok. 3, x 3 6 0. in Terrestrial nematodes from Jan Mayen
Alaimus elegans de Man. α, anterior r i end, 1/ 12, ok. 3, x 600. b, tail obj. 7, ok. 3, x 360. c, region of the female organs obj. 7, ok. 3, x 3 6 0.
Text-fig. 5. Mastixiopsis nyssoides KIRCHH. a, b, g–n: Organic preservation. a, b: Lignitic, unpermineralized, early Eocene Dorset Pipe clays at Arne, V. 40762. a: Ventral view (original illustration from pl. 18, fig. 1 of Chandler 1962). b: Transverse fracture, somewhat distorted by compression. c–f: Pyrite permineralization. c: Ventral view, V. 22963(1) from Sheppey, originally listed as Mastixia cantiensis. d: Lateral view, V. 22969 from Sheppey (identified as Mastixia grandis by Reid and Chandler 1933: pl. 25, fig. 8). e: Equatorial transverse physical section from (c). f: Equatorial transverse physical section from (d). g: Detail of pericarp from (e), showing endocarp formed of dense fibrous tissue, surrounded by mesocarp of anticlinally oriented larger cells. h: Detail of pericarp from (f). i–n: Type material from Eocene of Riestadt, Germany, MNB. i: Ventral view. j, k: Ventral and apical views of holotype. l: View of the transversely fractured surface from (j) showing horseshoe shaped locule. m: Equatorial transverse physical cut of the specimen in (i); note yellow resin cavity (arrow). n: Scanning electron microscopy of pericarp from (l) with locule lining at lower edge of image. Note dense endocarp tissue composed of small cells (fibres and sclereids), extending about 3/5 of distance to periphery, surrounded by mesocarp of larger, anticlinally oriented cells. Scale bars 1 cm in (a–f), (i–k), 1 mm in (g), 2 mm in (h), 3 mm in (l), m, 250 Μm in (n). Bar in (d) applies also to (c). Bar in (l) also applies to (m). Bar in (i) also applies to (j) and (k). in Mastixioid Fruits (Cornales) From The Early Eocene London Clay Flora: Morphology, Anatomy And Nomenclatural Revision
Text-fig. 5. Mastixiopsis nyssoides KIRCHH. a, b, g–n: Organic preservation. a, b: Lignitic, unpermineralized, early Eocene Dorset Pipe clays at Arne, V. 40762. a: Ventral view (original illustration from pl. 18, fig. 1 of Chandler 1962). b: Transverse fracture, somewhat distorted by compression. c–f: Pyrite permineralization. c: Ventral view, V. 22963(1) from Sheppey, originally listed as Mastixia cantiensis. d: Lateral view, V. 22969 from Sheppey (identified as Mastixia grandis by Reid and Chandler 1933: pl. 25, fig. 8). e: Equatorial transverse physical section from (c). f: Equatorial transverse physical section from (d). g: Detail of pericarp from (e), showing endocarp formed of dense fibrous tissue, surrounded by mesocarp of anticlinally oriented larger cells. h: Detail of pericarp from (f). i–n: Type material from Eocene of Riestadt, Germany, MNB. i: Ventral view. j, k: Ventral and apical views of holotype. l: View of the transversely fractured surface from (j) showing horseshoe shaped locule. m: Equatorial transverse physical cut of the specimen in (i); note yellow resin cavity (arrow). n: Scanning electron microscopy of pericarp from (l) with locule lining at lower edge of image. Note dense endocarp tissue composed of small cells (fibres and sclereids), extending about 3/5 of distance to periphery, surrounded by mesocarp of larger, anticlinally oriented cells. Scale bars 1 cm in (a–f), (i–k), 1 mm in (g), 2 mm in (h), 3 mm in (l), m, 250 Μm in (n). Bar in (d) applies also to (c). Bar in (l) also applies to (m). Bar in (i) also applies to (j) and (k).
Text-fig. 7. Stereomicroscope microphotographs of plant remains sieved out of a sediment bulk sample (C3X) from bed GLA10 of Govone. a: Tetraclinis salicornioides (UNGER) KVAČEK, shoot fragment, MGPT-PU141083). b: Toddalia latisiliquata (R.LUDW.) H.-J. GREGOR, seed, MGPT-PU141084. c: Toddalia rhenana H.-J.GREGOR, seed, MGPT-PU141085. d: Eurya stigmosa (R.LUDW.) MAI, small seed with piths filled by organic remains and sediment, MGPT-PU141086. e: Eurya stigmosa (R.LUDW.) MAI, fragmentary seed, MGPT-PU141087. f: Visnea germanica MENZEL, fruit from two opposite sides, MGPT-PU141088. g: Symplocos casparyi R.LUDW., endocarp in lateral view from two opposite sides, MGPT-PU141089. Scale bar 1 mm. in Remains Of A Subtropical Humid Forest In A Messinian Evaporitebearing Succession At Govone, Northwestern Italy - Preliminary Results
Text-fig. 7. Stereomicroscope microphotographs of plant remains sieved out of a sediment bulk sample (C3X) from bed GLA10 of Govone. a: Tetraclinis salicornioides (UNGER) KVAČEK, shoot fragment, MGPT-PU141083). b: Toddalia latisiliquata (R.LUDW.) H.-J. GREGOR, seed, MGPT-PU141084. c: Toddalia rhenana H.-J.GREGOR, seed, MGPT-PU141085. d: Eurya stigmosa (R.LUDW.) MAI, small seed with piths filled by organic remains and sediment, MGPT-PU141086. e: Eurya stigmosa (R.LUDW.) MAI, fragmentary seed, MGPT-PU141087. f: Visnea germanica MENZEL, fruit from two opposite sides, MGPT-PU141088. g: Symplocos casparyi R.LUDW., endocarp in lateral view from two opposite sides, MGPT-PU141089. Scale bar 1 mm.
(c) simulation on Repast: after queen adaptive development-MODELING SELF-ORGANIZING SYSTEMS WITH SOCIAL INSECTS ALGORITHMS
<p>On figures (b) and (c), simulations on RePast [11, 16, 18] are<br> provided at successive times. The last figure shows the adaptive mechanism<br> of the queen which grows with time according to the material density around<br> it, like in natural observations.</p>
SI Figure 4: SEM images of either unwashed (left) or washed (right) E. antarcticus nematodes. A. Unwashed head region with arrows pointing to attached material and possible fungal hyphae. B. Washed head region with arrows pointing to the remaining attached material. C. Unwashed annules with arrows pointing to commonly attached foreign material. D. Washed annules with arrows pointing to remaining attached material. E. Unwashed somatic pore with arrows pointing to the common organic material. F. Washed vulva with an arrow pointing to remaining attached organic material. G. Unwashed cuticle with arrows showing a possible biofilm. H. Washed cuticle showing single attached cells indicated with arrows. I. Unwashed cuticle showing an off-axis line of attached material. J. Washed cuticle showing a similar off-axis line of material (as indicated with arrow) but reduced in quantity compared to the unwashed. in External and internal microbiomes of Antarctic nematodes are distinct, but more similar to each other than the surrounding environment
SI Figure 4: SEM images of either unwashed (left) or washed (right) E. antarcticus nematodes. A. Unwashed head region with arrows pointing to attached material and possible fungal hyphae. B. Washed head region with arrows pointing to the remaining attached material. C. Unwashed annules with arrows pointing to commonly attached foreign material. D. Washed annules with arrows pointing to remaining attached material. E. Unwashed somatic pore with arrows pointing to the common organic material. F. Washed vulva with an arrow pointing to remaining attached organic material. G. Unwashed cuticle with arrows showing a possible biofilm. H. Washed cuticle showing single attached cells indicated with arrows. I. Unwashed cuticle showing an off-axis line of attached material. J. Washed cuticle showing a similar off-axis line of material (as indicated with arrow) but reduced in quantity compared to the unwashed.
Figure 5A-C in Silks and silk-producing organs of Neotropical tarantula Avicularia metallica (Araneae, Mygalomorphae, Theraphosidae)
Figure 5A-C. Spinneret silk spigot ultrastructure: A – two spigots of posterior lateral spinnerets. B – enlarged view of framed section in A: opening at the end of shaft, from which silk secretion is extruded, C – opening at the end of shaft, filled with solidified silk secretion. The secretion has two components. Peripheral (S1) component of solidified protein mixture surrounds the central (S2) component, which unlike component S1, has a granular appearance. SPI – spigots, bas – basal part (socket), term – terminal part of spigot (shaft).
Figure 7A-C in Silks and silk-producing organs of Neotropical tarantula Avicularia metallica (Araneae, Mygalomorphae, Theraphosidae)
Figure 7A-C. SEM micrographs of attachment field silk: A – Cut-out section of plastic container, covered with silk of attachment fields – AFS. Places with the highest concentration of nanofibrils appear in the image as whitish spots without clear borders. This silk constitutes an adhesive foundation layer onto which the spider attaches connecting fibers, B – attachment of a connecting fiber (CF) to the substratum covered with adhesive silk. Before joining with the silk of attachment fields, the thick connecting fibers ramify into several thinner fibers with fewer nanofibrils. As the fibers progressively ramify before they are anchored in the AFS-covered substratum, the bundles become gradually less compact until separate nanofibrils remain. C – enlarged view of framed section in B.
Processed Hi-C contact matrices for "Single-cell DNA replication profiling identifies spatiotemporal developmental dynamics of chromosome organization"
<p>Processed Hi-C interaction matrices (iterative correction) saved in .hic format (40kb bins).</p> <p>.hic files were generated by juicer pipeline using processed Hi-C interaction matrices.</p> <p>Only <em>cis </em>interactions were available.</p> <p>To extract the data, please see </p> <p>https://github.com/aidenlab/juicer/wiki/Data-Extraction</p>
Figure 1 in C-Heterochromatin and nucleolus organizer region distribution of Myotis emarginatus (Chiroptera: Vespertilionidae) from Turkey
Figure 1. Collection sites of Myotis emarginatus in Dubnisa Cave from Kırklareli (1); in old church from Karaisalı, Adana (2); and in Black Cave from Yozgat (3) in Turkey.
Figures 231–241. Reproductive organs. 231–234. Pelonium spp. a-c. 231 in Morphologic studies of the alimentary canal and internal reproductive organs of the Chaetosomatidae and the Cleridae (Coleoptera: Cleroidea) with comparative morphology and taxonomic analyses
Figures 231–241. Reproductive organs. 231–234. Pelonium spp. a-c. 231) sp. a, male. 232) sp. a, female. 233) sp. b, male. 234) sp. c, male. 235. Tarsostenodes leucogramma, male. 236–237. Females. 236) Blackburniella hilaris. 237) Parapylus sedlaceki. 238–239. Tarsostenus carus. 238) female. 239) male. 240) Tarsotenodes guttulus, female. 241) Dolichopsis haplocnemodes, female.
Figure 9. Abdominal brush organs. A–C in A survey of androconial organs in the Riodinidae (Lepidoptera)
Figure 9. Abdominal brush organs. A–C, Nymphidium caricae (Linnaeus), lateral view of last two abdominal segments illustrating position of lateral brushes relative to in situ genitalia (A), ventral view of last abdominal segment with brushes laterally, uncus at top and last sternite and valvae at bottom (B), and sockets of brush setae magnified (C); Juditha azan (Westwood), lateral (D) and ventral (E) view of genitalia illustrating setal brush between base of valvae and pedicel, and socket and spiny surface of setal pad (F) and setal tip (G) magnified. Scale bars: A, B, D, E, 1 mm; C, 20 mm; F, 10 mm; G, 2 mm.
Text-fig. 43. Synchrotron radiation X-ray tomographic microscopy SRXTM images of "Tricarpellate flower sp. 2"; Catefica locality, Portugal. a) Lateral view of floral structure (volume rendering) showing the apical projection of the carpels and the semiinferior organization; b) Apical view of floral structure (volume rendering) showing the triangular shape of the hypanthial rim, the tricarpellate ovary with a single apical style; note that one locule is fully developed while the other two are collapsed; note also slits of unknown nature in the corners of the triangular hypanthial rim (arrows); c) Transverse section (orthoslice xy0712) close to the floral apex showing the locule of the one fully developed carpel with ovules borne along ventral placentae; note amorphous substance (asterisk) associated with the developing ovules that fills part of the locule space; d) Longitudinal section (orthoslice xz0858) through the locule of the one fully developed carpel showing the semi-inferior organization and ovules arranged along the full length of the carpel; note amorphous substance (asterisk) associated with the developing ovules that fills part of the locule space; e) Tangential longitudinal section (orthoslice yz1019) through the one fully developed locule, showing the densely packed ovules and the amorphous substance (asterisk) with which they are associated. Specimen, Catefica 50-S174901 (a–e). Scale bars = 300 Μm (a–e). in The Early Cretaceous Mesofossil Flora Of Catefica, Portugal: Angiosperms
Text-fig. 43. Synchrotron radiation X-ray tomographic microscopy SRXTM images of "Tricarpellate flower sp. 2"; Catefica locality, Portugal. a) Lateral view of floral structure (volume rendering) showing the apical projection of the carpels and the semiinferior organization; b) Apical view of floral structure (volume rendering) showing the triangular shape of the hypanthial rim, the tricarpellate ovary with a single apical style; note that one locule is fully developed while the other two are collapsed; note also slits of unknown nature in the corners of the triangular hypanthial rim (arrows); c) Transverse section (orthoslice xy0712) close to the floral apex showing the locule of the one fully developed carpel with ovules borne along ventral placentae; note amorphous substance (asterisk) associated with the developing ovules that fills part of the locule space; d) Longitudinal section (orthoslice xz0858) through the locule of the one fully developed carpel showing the semi-inferior organization and ovules arranged along the full length of the carpel; note amorphous substance (asterisk) associated with the developing ovules that fills part of the locule space; e) Tangential longitudinal section (orthoslice yz1019) through the one fully developed locule, showing the densely packed ovules and the amorphous substance (asterisk) with which they are associated. Specimen, Catefica 50-S174901 (a–e). Scale bars = 300 Μm (a–e).
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Allen Brain Atlas
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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
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OpenNeuro
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