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2,359 results for “Southwest”
Supplementary material for: Coral reef potential connectivity in the southwest Indian Ocean
<p>Supplementary datasets and scripts for <em>Coral reef potential connectivity in the southwest Indian Ocean</em>. Please see the readme!</p>
Fig 7 in On three species of Plexippoides Prószyński, 1984 from Southwest, China (Araneae: Salticidae)
Fig 7. Distributional records of the species of Plexippoides Prószyński, 1984.
Catches of three main species in the Southwest Atlantic area FAO 41
<p>Download and calculation from FAO FishStatJ on catches of three main species in the Southwest Atlantic from 1950 to 2018. Calculation from 2000 to 2018. Value in 1000 USD, quantity in tonnes</p>
Catches of three main species in the Southwest Atlantic area FAO41
<p>The dataset includes report on catches from the three main species (Argentine hake, Argentine short fin squid, Argentine red shrimp) in the Southwest Atlantic area FAO 41. Raw data is extracted from FAO Capture, Aquaculture and Global production databases have been updated with an additional year and now include data from 1950 to 2018. Calculations made from 2000 to 2018. Value in 1000 USD, quantity in tonnes</p>
Trade data Argentine hake Southwest Atlantic FAO area 41
<p>The dataset compiles trade data of Argentine hake harvested in the Southwest Atlantic FAO area 41. Export and import data from main commercial actors are included Argentina, Spain and Falkland/Malvinas Islands. Period analysed 2010 to 2020. Values in thousand of Euros. Sources ITC - Trade maps, National Institute of Statistics and Census - Republic of Argentina, UN COMTRADE Database and Falkland/Malvinas Islands<br> </p>
Northern Bobwhite juvenile survival southwest Missouri 2016-2018
<p>These data and code are associated with the publication in Ornithological Applications entitled "Northern Bobwhite juvenile survival is greater on native grasslands managed with fire and grazing, and lower in non-native field borders and strip crop fields." We evaluated the influence of brood age, vegetation cover type, woody vegetation structure, habitat management, and landscape cover on juvenile survival in southwest Missouri 2016-2018.</p>
Volatile (C, N, Ar) variability in MORB and the respective roles of mantle source heterogeneity and degassing: the case of the Southwest Indian Ridge
<p>Location, isotopic compositions of δ13C and δ18O of CO2, δ15N of N2 and C, N and Ar abundances in vesicles of SWIR basaltic glasses</p>
51011 - Instream Flow Protection: Southwest Alaska - Phase 1
<p>Streamflow and discharge measurement data collected under AKSSF Grant 51011 - Instream Flow Protection: Southwest Alaska - Phase 1.</p>
The initiation and growth of transpressional shear zones through continental arc lithosphere, southwest New Zealand
<p class="Abstract">Structural analyses combined with new U-Pb zircon and titanite geochronology show how two Early Cretaceous transpressional shear zones initiated and grew through a nearly complete section of continental arc crust during oblique convergence. Both shear zones reactivated Carboniferous faults that penetrated the upper mantle below Zealandia's Median Batholith but show opposite growth patterns and dissimilar relationships with respect to arc magmatism. The Grebe-Indecision Creek shear zone was magma-starved and first reactivated at ~136 Ma as an oblique-reverse fault, along which an outboard batholith partially subducted beneath Gondwana. This system nucleated at or above ~20 km depth and propagated downward at 2-3 mm yr<sup>-1</sup>, accumulating at least 35-45 km of horizontal (arc-normal) shortening by ~124 Ma. In contrast, the magma-rich George Sound shear zone first reactivated in the lower crust (~55 km depth) at ~124 Ma and grew upward at ~3 mm yr<sup>-1</sup>, reaching the upper crust by ~110 Ma. In this latter system, magmatism influenced shear zone architecture and drove its growth while subduction and oblique convergence ended. As magma entered the roots of the system and began to solidify, deformation was driven out of the lower crust and into the middle crust where the system widened by a factor of three when fold-thrust belts formed on either side of a steep, central transpressional shear zone. This study illustrates how the reactivation of inherited structural weaknesses localizes deformation at all depths in the lithosphere and shows how magma-deformation feedbacks influence shear zone connectivity and built a batholith from the bottom up.</p>
Cascading drought-heat dynamics during the 2021 Southwest United States Heatwave
<p>In June of 2021 the southwest United States experienced a record-breaking heatwave. This heatwave came at a time when the region was in severe drought. As drought alters the surface energy budget in ways that affect lower atmosphere temperature and circulations, it is possible that the combined drought-heat event was a cascading climate hazard, in which preexisting drought exacerbated the heatwave. We apply satellite observation and numerical experiments with the Weather Research and Forecasting (WRF) model to test for land-atmosphere feedbacks during the heatwave consistent with drought influence. We find a modest positive drought-heat effect, as WRF simulations that include the drought have marginally higher air temperatures than those that exclude the initial drought conditions, with more substantial effects in wetter, forested areas. Evidence of drought-heat-drought coupled feedbacks was similarly modest in our simulations, as accounting for drought preconditioning led to a small reduction in simulated precipitation in the region.</p> <p>The files in this dataset are the output of our analyses and numerical modeling presented in this study.</p>
Data From: Advancing fence datasets: Comparing approaches to identify fence locations and specifications in southwest Montana
<p>Fencing is a major anthropogenic feature affecting human relationships, ecological processes, and wildlife distributions and movements, but its impacts are difficult to quantify due to a widespread lack of spatial data. We created a fence model and compared outputs to a fence mapping approach using satellite imagery in two counties in southwest Montana, USA to advance fence data development for use in research and management. The model incorporated road, land cover, ownership, and grazing boundary spatial layers to predict fence locations. We validated the model using data collected on randomized road transects (n = 330). The model predicted 34,706.4 km of fences with a mean fence density of 0.93 km/km<sup>2</sup> and a maximum density of 14.9 km/km<sup>2</sup>. We also digitized fences using Google Earth Pro in a random subset of our study area in survey townships (n = 50). The Google Earth approach showed greater agreement (K = 0.76) with known samples than the fence model (K = 0.56) yet was unable to map fences in forests and was significantly more time intensive. We also compared fence attributes by land ownership and land cover variables to assess factors that may influence fence specifications (e.g., wire heights) and types (e.g., number of barbed wires). Private lands were more likely to have fences with lower bottom wires and higher top wires than those on public lands with sample means at 22 cm and 26.4 cm, and 115.2 cm and 110.97, respectively. Both bottom wire means were well below recommended heights for ungulates navigating underneath fencing (≥ 46 cm), while top wire means were closer to the 107 cm maximum fence height recommendation. We found that both fence type and land ownership were correlated (χ<sup>2 </sup>= 45.52, df = 5, p = 0.001) as well as fence type and land cover type (χ<sup>2 </sup>= 140.73, df = 15, p = 0.001). We provide tools for estimating fence locations, and our novel fence type assessment demonstrates an opportunity for updated policy to encourage the adoption of "wildlife-friendlier" fencing standards to facilitate wildlife movement in the western U.S. while supporting rural livelihoods.</p>
Are fine roots 'leaves underground' in terms of allometry? A test in a tropical forest successional series in southwest China
<p>Fine roots have been hypothesized to be "leaves underground" in terms of vascular network, but this hypothesis has rarely been tested within the framework of metabolic scaling theory (MST). We measured average fine-root (diameter < 1 mm) mass (M), surface area (A), volume (V), diameter (D) and length (L) for 216 soil cores from 24 plots across four successional stages in tropical forests of Xishuangbanna (southwest China), and examined eight scaling relationships between these variables at the individual root scale. We tested whether fine-root allometries conformed to MST's model for leaf (MSTl) or model (MSTw) for woody organs (e.g. trunk). We also assessed the relative effects of environmental factors, tree size, species composition and diversity, and stand structural factors on allometric relationships using structural equation models (SEMs). Our results showed that: 1) Fine-root scaling exponents rarely conformed to MSTl's predictions. 2) The scaling exponents between fine-root M, A, V and D all conformed to MSTw's predictions in later successional forests, but showed greater deviation towards early successional stage. 3) The scaling exponents associated with fine-root length differed markedly from MSTw's predictions. 4) Changes of some fine-root scaling exponents across successional stage were mainly affected by tree size or soil fertility, and species composition affected allometry only indirectly via tree size. Our results suggested that the allometries of individual fine roots largely conform to the scaling rules governing woody organs instead of leaves, probably because leaves are nearly two-dimensional objects while the other two are three-dimensional. We showed that MSTw can well predict some fine-root allometries in later successional forests, suggesting great potential of utilizing MSTw to better estimate fine-root biomass and productivity. However, the present MSTw still needs to be improved for predicting the scaling relationships concerning fine-root length, and also for better quantifying allometric exponents in earlier successional forests.</p>
Monthly water storage anomalies, precipitation, and groundwater recharge in two karstic basins, southwest China (2003-2014)
<p>This dataset includes the regionally-averaged monthly hydrological data in two karstic basins, southwest China which are processed or estimated for the manuscript entitled "A novel approach for assessing groundwater recharge by combining GRACE and baseflow with case studies in karst areas of southwest China" by Huang et al., 2022 (submitted to Water Resources Research, Major Revision).</p> <p><strong>Basin description:</strong></p> <p>The Wujiang River Basin (WRB, ~87,900 km<sup>2</sup>, ~70% karstification) and Xijiang River Basin (XRB, ~360,000 km<sup>2</sup>, ~44% karstification) are two typical karstic basins in southwest China. The Wujiang River is the largest tributary in the southern part of the upper Yangtze River. It is originated from the Wumeng Mountain in the Yunnan-Guizhou Plateau and flows from Guizhou to Chongqing. The Xijiang River is the largest tributary of the Pearl River (the largest river in southern China). It is originated from the mountains in eastern Yunnan and flows to Guangxi, Guangdong, and finally into the South China Sea.</p> <p><strong>Data description:</strong></p> <p>1. TWSA (unit: mm in equivalent water thickness) is the average terrestrial water storage anomaly data obtained from three release 6 GRACE (Gravity Recovery and Climate Experiment) mascon solutions, i.e., the Center for Space Research (CSR) at the University of Texas (<a href="http://www2.csr.utexas.edu/grace/RL06_mascons.html">http://www2.csr.utexas.edu/grace/RL06_mascons.html</a>), Jet Propulsion Laboratory (JPL, <a href="https://podaac.jpl.nasa.gov/dataset/TELLUS_GRAC-GRFO_MASCON_CRI_GRID_RL06_V2">https://podaac.jpl.nasa.gov/dataset/TELLUS_GRAC-GRFO_MASCON_CRI_GRID_RL06_V2</a>), and Goddard Space Flight Center (GSFC, <a href="https://earth.gsfc.nasa.gov/geo/data/grace-mascons">https://earth.gsfc.nasa.gov/geo/data/grace-mascons</a>). The anomalies were estimated by removing a mean background value during 2006-2012.</p> <p>2. SMSA and SWSA (unit: mm in equivalent water thickness) are the soil moisture storage anomaly and surface water storage anomaly data based on the model simulations by WGHM (v2.2d) provided by Dr. Hannes Müller Schmied (email: hannes.mueller.schmied@em.uni-frankfurt.de) at Institute of Physical Geography, Goethe-University Frankfurt. The anomalies were estimated by removing a mean background value during 2006-2012.</p> <p>3. Precipitation data (unit: mm/month) were based on the monthly gridded (0.5×0.5 degree) data product obtained from China Meteorological Administration (CMA, https://data.cma.cn/) which was interpolated from ground-based data measured by meteorological stations.</p> <p>4. Groundwater recharge (unit: mm/month) was estimated based on the groundwater budget method, i.e., the summation of groundwater storage change (GWSC) and baseflow. GRACE-based recharge was estimated using the GWSC derived from GRACE TWSA, WGHM-simulated SMSA and SWSA and in situ-based reservoir storage data. Observation-based recharge was estimated using the GWSC based on in situ groundwater-level data and specific yield (or storage coefficient). Both GRACE- and observation-based recharge were estimated using the baseflow separated by a multiple linear regression using the in situ streamflow as predictand, and precipitation and water table depth data as predictors.</p> <p>Time span: 2003-2014. The time lable like "200301" means January, 2003. "200312" means December, 2003.</p>
Figure 22 in Construction and use of orb webs by jumping spiders (Araneae: Salticidae: Plexippina: Vailimia sp. indet.) in southwest India
Figure 22. Moulting by orb-weaver spiders (Araneidae). 1, Female Nephila Leach 1815 moulting from dragline. 2, Detail of (1) showing smaller male in mating position. The genus Nephila is sometimes placed in the Nephilidae. 3-4, Neoscona Simon 1864 moulting from dragline. 5-6, Parawixia F. O. Pickard-Cambridge 1904 moulting from dragline. 7-8, Male Argiope bruennichi (Scopoli 1772) waiting for a moulting female (7) and then mating with that female (8) as she was hanging beneath her exuvium before her cuticle darkened or hardened. The condition of a newly-moulted female may reduce the vulnerability of the male to her attack (Uhl et al. 2015). Photos 1-2 by Vipin Baliga (Karnataka). Photos 3-6 by Abhijith A. P. C. (Karnataka). Photos 7-8 by Uhl et al. (2015), adapted and used under a Creative Commons Attribution 4.0 International License.
Figure 21 in Construction and use of orb webs by jumping spiders (Araneae: Salticidae: Plexippina: Vailimia sp. indet.) in southwest India
Figure 21. Moulting by wandering spiders. 1, Female Phidippus putnami (Peckham & Peckham 1883) (Salticidae). The thick moulting sac was opened to observe this spider. 2, cf. Carrhotus Thorell 1891 (Salticidae) with exuvium in thin moulting sac. 3-4, Two different Epeus Peckham & Peckham 1886 (Salticidae) with exuviae, in thin moulting sacs under leaves. 5, Heteropoda Latreille 1804 (Sparassidae) moulting from dragline. 6, Olios milleti (Pocock 1901) (Sparassidae) moulting from dragline. 7, Hamadruas Deeleman-Reinhold 2009 (Oxyopidae) with exuvium beneath leaf. 8-11, Sequence showing Oxyopes shweta Tikader 1970 (Oxyopidae) molting from dragline. Photo (1) by David E. Hill (South Carolina). Photos (2-11) by Abhijith A. P. C. (Karnataka).
Figure 20 in Construction and use of orb webs by jumping spiders (Araneae: Salticidae: Plexippina: Vailimia sp. indet.) in southwest India
Figure 20. Observations of Vailimia sp. indet. in Goa. 1-2, Two views of spider resting on its silk platform. 3, Spider after it has separated itself from the exuvium by descending on its dragline. The exuvium maintained its hold on the dragline with legs IV. 4-5, Closer views from (3). 6, Detail showing this spider extending and inflating its legs while suspended. All observations and photographs by Aditya Naik, used with permission.
Figure 19 in Construction and use of orb webs by jumping spiders (Araneae: Salticidae: Plexippina: Vailimia sp. indet.) in southwest India
Figure 19 (continued from previous page). 3-14, 31-34, Two sets of sequential frames showing how this spider turned around the hub of its orb-web to deposit the silk that comprised its resting platform (only visible in 32). Extension of the spinnerets can be seen in some of these frames (6, 8, 10, 12). This construction activity resembles the early stages of construction of an araneid orb-web (proto-hub and proto-radii).
Figure 19 in Construction and use of orb webs by jumping spiders (Araneae: Salticidae: Plexippina: Vailimia sp. indet.) in southwest India
Figure 19 (continued on next page). Sequential positions (1-34) occupied by a salticid (Vailimia sp. indet.) as it constructed its retreat in Kasaragod, Kerala, taken from a 59.94 fps video record produced by Prasantha Krishna. At top selected frames from this sequence are composited to show movement from the end of one radius down to the hub (1-15), then movement down and to the stem from the hub with a trailing dragline (15-19), attachment of the dragline to anchor a new radius (22, arrow), followed by return to the hub while climbing beneath the new radius (25-28). 20-24, Individual frames showing trailing dragline as it was extended from the hub (20), hold on that dragline with the claws of leg RIV (21), first movement onto the attached (arrow) dragline (23), and the beginning of a rapid climb back to the hub (24).
Figure 18 in Construction and use of orb webs by jumping spiders (Araneae: Salticidae: Plexippina: Vailimia sp. indet.) in southwest India
Figure 18. Salticid (Vailimia sp. indet.) with retreat. 1-2, Spider resting on its hub platform at night. 3, Detail of (1). 4, Empty hub on the next day. This retreat was constructed on a tree at a height of ~1.6-2 m above the ground and was only occupied at night. Photographed in Kasaragod, Kerala by Prasantha Krishna.
Figure 15 in Construction and use of orb webs by jumping spiders (Araneae: Salticidae: Plexippina: Vailimia sp. indet.) in southwest India
Figure 15. Vailimia sp. indet. resting on their vertical platforms at night. 1-3, Spider resting on its platform at night. 2, Detailed view of this spider from (1). 3, Enhanced contrast image based on (1), showing layout of the hub and radii. 4, Detailed anterior view of salticid shown in Figure 4. Photographed in Kasaragod, Kerala by Prasantha Krishna.
ScienceDex guides
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These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
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.