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389 results for “woodlands”
Data from: The influence of distance to perennial surface water on ant communities in Mopane woodlands, northern Botswana
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Data from: Intrinsic traits of woodland caribou Rangifer tarandus caribou calves depredated by black bears Ursus americanus and coyotes Canis latrans
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Data from: Cats under cover: habitat models indicate a high dependency on woodlands by Atlantic Forest felids
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Woodland Caribou demographic data and range boundaries
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Madagascan highlands: originally woodland and forest containing endemic grasses, not grazing-adapted grassland
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Data from: Population genomics reveals structure at the individual, host-tree scale and persistence of genotypic variants of the undomesticated yeast Saccharomyces paradoxus in a natural woodland
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Long-term monitoring in endangered woodlands shows effects of multi-scale drivers on bird occupancy
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Data from: Below-ground causes and consequences of woodland shrub invasions: a novel paired-point framework reveals new insights
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NEON forest and woodland plots: diversity, structure and climate
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Data from: Aboveground versus soil-mediated effects of an invasive grass on fire-dependent forbs in an oak woodland
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Macronutrient niches and field limitation in a woodland assemblage of harvestmen
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Oak Woodland Monitoring for the Irvine Open Space Easements (4)
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Thermodynamics of soil organic matter decomposition in semi-natural oak (Quercus) woodland in southwest Ireland
<p>The evolution of soil terrestrial ecosystems is a subject with difficulties to define their maturity and evolutionary state. In the last century, thermodynamics was one of the options considered by ecologists for that goal. Difficulties in quantifying the thermodynamic parameters needed by the evolutionary theories caused that this subject has been practically locked since the end of the last century. Application of thermodynamics needs reactions and one of the main reactions in soil ecosystems are those involved in the decomposition of the soil organic matter. This paper aims to provide an initial step to study those reactions from a thermodynamic perspective. With that goal in mind, thermal analysis and isothermal calorespirometric measurements were made on soil samples collected at three depths in semi-natural oak woodlands at three different sites in southwest Ireland. It is assumed that the organic matter evolves from a less to a higher mature state as soil depth increases. The maturity state could be chemically defined by the redox state. The proposed methods yield the enthalpy change, Gibbs energy change, and entropy change for the microbial catabolism and combustion reactions of the soil organic matter. The degree of reduction was calculated by the enthalpy changes. Results show the soil organic matter becomes more reduced from the soil organic surface to mineral soils. The top layer is characterized by high carbon content, organic materials with low energy content per Cmole, and fast biodegradation rates. Mineral soils are characterized by low carbon content, organic materials with high energy content per Cmole, and slow biodegradation rates. Values obtained for the entropy change were sensitive to these differences among the different soil layers. These results contribute to unlock the thermodynamics of the soil reactions and to develop the bioenergetics of soil ecosystems.</p>
Figure 2 in Assessing high compositional differences of beetle assemblages across vertical woodland strata in the New Forest, Hampshire, England
Figure 2. Species accumulation curves created by rarefaction for each sampling method. Vertical bars = 95% confidence limits around the species richness estimate.
Water availability drives fine root dynamics in a Eucalyptus woodland under elevated atmospheric CO2 concentration
<p>Fine roots are a key component of carbon and nutrient dynamics in forest ecosystems. Rising atmospheric [CO<sub>2</sub>] (eCO<sub>2</sub>) is likely to alter the production and activity of fine roots, with important consequences for forest carbon storage. Yet empirical evidence of the role of eCO<sub>2</sub> in driving root dynamics in low-nutrient forested ecosystems is limited, particularly for grassy woodlands, an ecosystem type of global importance.</p> <p>We sampled fine roots across seasons over a two-year period to examine the effects of eCO<sub>2</sub> on their biomass, production, turnover and functional traits in a native mature grassy <i>Eucalyptus</i> woodland in eastern Australia (EucFACE).</p> <p>Fine root biomass, production and turnover varied greatly through time, increasing as soil water content declined. Despite a lack of persistent effects of eCO<sub>2</sub> on fine root biomass, production or turnover across the two-year sampling period, we found enhanced production pulses under eCO<sub>2</sub> between 10-30 cm soil depth. These eCO<sub>2</sub>-driven production pulses were associated with large changes in abiotic conditions. In addition, eCO<sub>2</sub> led to greater carbon and phosphorus concentrations in fine roots and increased root diameter, but no detectable effects on other morphological traits.</p> <p>Synthesis. We found minor quantitative effects of eCO<sub>2</sub> on fine root biomass dynamics that were largely driven by temporal variations in soil water availability. Our results suggest that in this mature grassy woodland, and perhaps also in other similar forested ecosystem types characterized by low phosphorus content in the soil, eCO<sub>2</sub> effects are small and transient. This suggests limited belowground fine root productivity responses to rising atmospheric CO<sub>2</sub> concentrations and, thus, perhaps also a limited ability of these systems to mitigate climate change through belowground mechanisms.</p>
Figure 9 in Five new species of Enchytraeidae (Annelida: Clitellata) from Mediterranean woodlands of Italy and reaffirmed validity of Achaeta etrusca, Fridericia bulbosa and F. miraflores
Figure 9. Fridericia rara sp. nov. (A) Anterior body segments (dorsolateral view), showing the pharyngeal glands, the left spermatheca and the preclitellar nephridia; (B and C) details of clitellum on its dorsal (B) and ventrolateral sides (C). Note the absence of gland cells ventrally in XII. Squared contour on midventral interruption indicates the position of (D). (D) Close-up of male pore; (E) sperm funnel; (F) lateral view of segments IV–V, showing the left spermatheca; (G) chylus cells showing through intestinal wall in segments XIII–XIV. All from permanent whole-mounted specimens, anterior to the left.
Figure 6 in Five new species of Enchytraeidae (Annelida: Clitellata) from Mediterranean woodlands of Italy and reaffirmed validity of Achaeta etrusca, Fridericia bulbosa and F. miraflores
Figure 6. Fridericia bargaglii sp. nov. (A) Semi-schematic drawing of segments IV–VII in a live specimen (dorsal view), showing the spermathecae and the pharyngeal glands; (B and C) spermathecae from whole-mounted specimens (in (C) diverticula seen in a side view); (D) peptonephridia (free-hand sketches) in living specimens; (E) shape and reciprocal distance of the male openings (ventral view). In all, anterior to the top.
Figure 5 in Five new species of Enchytraeidae (Annelida: Clitellata) from Mediterranean woodlands of Italy and reaffirmed validity of Achaeta etrusca, Fridericia bulbosa and F. miraflores
Figure 5. Fridericia bargaglii sp. nov. (A) Cephalic region (lateral view), showing the midventral glandular papilla in IV; (B) ventrolateral view of segments X–XV; the elliptical contour shows the continuity of the clitellum behind the male pores; arrows indicate the subneural glands in XIII–XV; (C) sagittal optical section through XI–XIII (lateral) in a preclitellate specimen, showing the male inner reproductive organs. All from permanent whole-mounted specimens, anterior to the right.
Figure 4. Achaeta etrusca Rota, 1995 in Five new species of Enchytraeidae (Annelida: Clitellata) from Mediterranean woodlands of Italy and reaffirmed validity of Achaeta etrusca, Fridericia bulbosa and F. miraflores
Figure 4. Achaeta etrusca Rota, 1995. (A) Cephalic region in a dorsolateral view. Arrows and arrowheads point to the body wall structures in I and II–IV, respectively; uppermost arrow and arrowhead indicate the corresponding protrusions on the right inner side of I and II. (B and C) Dorsal views of segments I–IV and VI–IX, respectively, showing the conspicuous loops of the oesophagus in IV and VII. All from live specimens, anterior to the left.
Figure 2 in Five new species of Enchytraeidae (Annelida: Clitellata) from Mediterranean woodlands of Italy and reaffirmed validity of Achaeta etrusca, Fridericia bulbosa and F. miraflores
Figure 2. Achaeta bohemica (Vejdovský, 1879a) as illustrated by Michaelsen (1889). (A) Crosssection through segment XII, showing the conspicuous hyaline gland cells on the dorsolateral sides of the clitellum, the flask-shaped glands (b), and the glands surrounding the male openings (p); (B) arrangement of the longitudinal muscle fibres in the body wall; (C) intestinal epithelial cells of segment IX, showing their fine intracellular canals in cross (q) and longitudinal (l) section.
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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.