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1,316 results for “Trade”
Initial Salicaceae species litter chemistry:Specialization, maintenance of diversity and ecosystem consequences of growth defense trade-offs in a model system: the hyper-diverse willow communities of Cedar Creek
Cedar Creek includes a diversity of habitats, which support an astonishing number of species (15) from a single evolutionary lineage: the willow family (Salicaceae). The physiological tolerances and abiotic mechanisms that maintain natural diversity in this hyper-diverse system are beginning to be understood; the role of biotic interactions, however, remains a major gap in understanding. We hypothesize that insect herbivory plays a critical role in niche partitioning, providing an important explanation for high willow diversity. Using a replicated series of common gardens and insect herbivore manipulations in resource rich and resource poor habitats, we are testing for evolved trade-offs between defense investment and growth rate. We expect specialized plant syndromes to emerge along the continuum from ???herbivore escape??? via fast growth in high resource environments to ???anti-herbivore protection??? via heavy investment in defense in low resource environments. Evolved growth/defense strategies that promote diversity are also likely to have ecosystem consequences due to foliar chemical influences on decomposition and the composition and diversity of the insect communities they support. The proposed research takes advantage of natural diversity, providing an important model system at Cedar Creek.
2012 growing season water table depth in common gardens:Specialization, maintenance of diversity and ecosystem consequences of growth defense trade-offs in a model system, the hyper-diverse willow communities of Cedar Creek
Cedar Creek includes a diversity of habitats, which support an astonishing number of species (15) from a single evolutionary lineage: the willow family (Salicaceae). The physiological tolerances and abiotic mechanisms that maintain natural diversity in this hyper-diverse system are beginning to be understood; the role of biotic interactions, however, remains a major gap in understanding. We hypothesize that insect herbivory plays a critical role in niche partitioning, providing an important explanation for high willow diversity. Using a replicated series of common gardens and insect herbivore manipulations in resource rich and resource poor habitats, we are testing for evolved trade-offs between defense investment and growth rate. We expect specialized plant syndromes to emerge along the continuum from ???herbivore escape??? via fast growth in high resource environments to ???anti-herbivore protection??? via heavy investment in defense in low resource environments. Evolved growth/defense strategies that promote diversity are also likely to have ecosystem consequences due to foliar chemical influences on decomposition and the composition and diversity of the insect communities they support. The proposed research takes advantage of natural diversity, providing an important model system at Cedar Creek.
Percent carbon and nitrogen in leaf tissue:Specialization, maintenance of diversity and ecosystem consequences of growth defense trade-offs in a model system, the hyper-diverse willow communities of Cedar Creek
Cedar Creek includes a diversity of habitats, which support an astonishing number of species (15) from a single evolutionary lineage: the willow family (Salicaceae). The physiological tolerances and abiotic mechanisms that maintain natural diversity in this hyper-diverse system are beginning to be understood; the role of biotic interactions, however, remains a major gap in understanding. We hypothesize that insect herbivory plays a critical role in niche partitioning, providing an important explanation for high willow diversity. Using a replicated series of common gardens and insect herbivore manipulations in resource rich and resource poor habitats, we are testing for evolved trade-offs between defense investment and growth rate. We expect specialized plant syndromes to emerge along the continuum from ???herbivore escape??? via fast growth in high resource environments to ???anti-herbivore protection??? via heavy investment in defense in low resource environments. Evolved growth/defense strategies that promote diversity are also likely to have ecosystem consequences due to foliar chemical influences on decomposition and the composition and diversity of the insect communities they support. The proposed research takes advantage of natural diversity, providing an important model system at Cedar Creek.
Supplementary material from: Melchior A (2019) Russia in world trade: Between globalism and regionalism. Russian Journal of Economics 5(4): 354-384. https://doi.org/10.32609/j.ruje.5.49345
: Data type: Table
Supplementary material 2 from: Wang A, Conti-Jerpe IE, Richards JL, Baker DM (2020) Phestilla subodiosus sp. nov. (Nudibranchia, Trinchesiidae), a corallivorous pest species in the aquarium trade. ZooKeys 909: 1-24. https://doi.org/10.3897/zookeys.909.35278
: Data type: Newick Trees
Supplementary material 1 from: Wang A, Conti-Jerpe IE, Richards JL, Baker DM (2020) Phestilla subodiosus sp. nov. (Nudibranchia, Trinchesiidae), a corallivorous pest species in the aquarium trade. ZooKeys 909: 1-24. https://doi.org/10.3897/zookeys.909.35278
: Data type: GenBank Accession Numbers
Figure 5 from: Wang A, Conti-Jerpe IE, Richards JL, Baker DM (2020) Phestilla subodiosus sp. nov. (Nudibranchia, Trinchesiidae), a corallivorous pest species in the aquarium trade. ZooKeys 909: 1-24. https://doi.org/10.3897/zookeys.909.35278
Figure 5 Internal morphology of Phestilla subodiosus sp. nov.: A schematic of rachidian tooth. Abbreviations: B, base; D, denticles; CC, central cusp B schematic of jaw plates overlaid onto microscope imagery C microscope imagery of reproductive system. Abbreviations: GO, genital opening; Pr, prostate; FGM, female gland mass; Am, ampulla D schematic of reproductive system. Abbreviations: PG, penile gland; Pr, prostate; VD, vas deferens; Va, vagina; FGM, female gland mass; Am, ampulla; HS, hermaphrodite system.
Figure 4 from: Wang A, Conti-Jerpe IE, Richards JL, Baker DM (2020) Phestilla subodiosus sp. nov. (Nudibranchia, Trinchesiidae), a corallivorous pest species in the aquarium trade. ZooKeys 909: 1-24. https://doi.org/10.3897/zookeys.909.35278
Figure 4 Preserved holotype 2 mm and eggs of Phestilla subodiosus sp. nov.: A ventral view of holotype B dorsal view of holotype C preserved egg cluster paratype collected from Montipora sp. fragment.
Figure 3 from: Wang A, Conti-Jerpe IE, Richards JL, Baker DM (2020) Phestilla subodiosus sp. nov. (Nudibranchia, Trinchesiidae), a corallivorous pest species in the aquarium trade. ZooKeys 909: 1-24. https://doi.org/10.3897/zookeys.909.35278
Figure 3 Combined COI-16S-H3 Maximum Likelihood and Bayesian Inference phylogenetic hypotheses. Support values indicate Bootstrap (BS) and Posterior Probability (PP) rounded to two significant digits on the ML and BI trees. Phestilla subodiosus sp. nov. and P. chaetopterana comb. nov. are highlighted. Trees rooted on Eubranchus.
Figure 1 from: Wang A, Conti-Jerpe IE, Richards JL, Baker DM (2020) Phestilla subodiosus sp. nov. (Nudibranchia, Trinchesiidae), a corallivorous pest species in the aquarium trade. ZooKeys 909: 1-24. https://doi.org/10.3897/zookeys.909.35278
Figure 1 An aggregation of living individuals of Phestilla subodiosus sp. nov. on Montipora sp. White arrows indicate metamorphosed individuals; white circles indicate clusters of egg masses.
Figure 2 from: Wang A, Conti-Jerpe IE, Richards JL, Baker DM (2020) Phestilla subodiosus sp. nov. (Nudibranchia, Trinchesiidae), a corallivorous pest species in the aquarium trade. ZooKeys 909: 1-24. https://doi.org/10.3897/zookeys.909.35278
Figure 2 Specimens of Phestilla subodiosus sp. nov.: A adult (4 mm paratype) B adult feeding on Montipora sp. C paratype egg mass on Montipora sp. fragment.
FIG. 9 in The exploitation of molluscs and other invertebrates in Alexandria (Egypt) from the Hellenistic period to Late Antiquity: food, usage, and trade
FIG. 9. — Traces of mortar on: A, spiny murex (Bolinus brandaris Linnaeus, 1758); B, cerith (Cerithium sp. Bruguière, 1789) from Cricket Ground site; C-E, thorny oyster (Spondylus gaederopus Linnaeus, 1758) from Billiardo Palace. Scale bars: 10 mm.
FIG. 6 in The exploitation of molluscs and other invertebrates in Alexandria (Egypt) from the Hellenistic period to Late Antiquity: food, usage, and trade
FIG. 6. — Perforated marine mollusc shells found in the same archaeological layer: A-G, Lagoon cockles (Cerastoderma glaucum Bruguière, 1789); H, flat oyster (Ostrea edulis Linnaeus, 1758). Scale bar: 10 mm.
FIG. 19. — Red coral from 5 in The exploitation of molluscs and other invertebrates in Alexandria (Egypt) from the Hellenistic period to Late Antiquity: food, usage, and trade
FIG. 19. — Red coral from 5th-6th century AD levels on the Diana Theatre site: A, raw fragments; B, beads. Scale bar: 10 mm.
ABLE 7 in The exploitation of molluscs and other invertebrates in Alexandria (Egypt) from the Hellenistic period to Late Antiquity: food, usage, and trade
ABLE 7. — Chemicalcompositionofagoldleafsampletakenfromtheflat oyster (Ostreaedulis, Linnaeus, 1758) andanalysedwiththescanningelectron microscope (Fig. 11C; D). The grey cells highlight the gold (Au).
FIG. 1 in The exploitation of molluscs and other invertebrates in Alexandria (Egypt) from the Hellenistic period to Late Antiquity: food, usage, and trade
FIG. 1. — Location map of Alexandria in Lower Egypt, surrounded by the Mediterranean Sea and Lake Mareotis. Computer aided design: V. Pichot, CEAlex.
FIG. 5 in The exploitation of molluscs and other invertebrates in Alexandria (Egypt) from the Hellenistic period to Late Antiquity: food, usage, and trade
FIG. 5. — Distribution of total lengths of oysters in the Ptolemaic and Roman periods in Alexandria expressed as percentages (measurements in millime- tres, raw values are given between brackets). Abbreviations: LV, left valves; RV, right valves.
FIG. 8 in The exploitation of molluscs and other invertebrates in Alexandria (Egypt) from the Hellenistic period to Late Antiquity: food, usage, and trade
FIG. 8. — Traces of earthen mortar on: A, B, washed-up bittersweet clams (Glycymeris sp. da Costa, 1778); C, washed-up dove snail (Columbella rustica Linnaeus, 1758). Scale bar: 10 mm.
FIG. 7 in The exploitation of molluscs and other invertebrates in Alexandria (Egypt) from the Hellenistic period to Late Antiquity: food, usage, and trade
FIG. 7. — Some examples of shells from a 2nd century BC occupation level on the Diana Theatre site. A, B, bittersweet clam (Glycymeris sp. da Costa, 1778); C, rustic dove snail (Columbella rustica Linnaeus, 1758). Scale bars: 10 mm.
FIG. 11 in The exploitation of molluscs and other invertebrates in Alexandria (Egypt) from the Hellenistic period to Late Antiquity: food, usage, and trade
FIG. 11. — Gold leaf on an flat oyster (Ostrea edulis, Linnaeus, 1758) shell: A, gold leaf on a flat oyster (Ostrea edulis Linnaeus, 1758) shell; B, photograph of the goldleaftakenwithbinocularmicroscope; C, D, photographsofthegoldleaftakenwithscanningelectronmicroscope (D: FOV, 233 µm; mode, 15kV – Point; detector, BSDfull). Scalebars: A, 10 mm; B, 5 mm; C, 3 mm; D, 50 µm.
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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)
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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.