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1,604 results for “Wintering”

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zenodo40/100

Agronomic performance of cultivar mixtures of winter wheat varieties, obtained from mixture field trials at 5 locations in Switzerland from 2019 to 2020, together with yield data from the varieties in pure stand obtained from the national variety testing trial network

<p>This dataset contains agronomic parameters of 32 winter wheat variety mixtures tested during 2 growing seasons (2019-2020) at 5 locations in Switzerland, as well as yield data of these varieties in pure stands originating from the Swiss national variety testing network. The dataset has been used to investigate the links between asynchrony and yield stability, published in&nbsp;<a href="https://doi.org/10.1002/csc2.21151">https://doi.org/10.1002/csc2.21151</a>.&nbsp;&nbsp;</p> <p>The field trials were performed under the Swiss Extenso (low input) conditions, conducted by Agroscope and DSP.&nbsp;</p> <h2>Methods&nbsp;</h2> <p><em>Field trials&nbsp;</em></p> <p>The experiment took place in five sites across Switzerland, in 2019 and 2020. The sites were located in Nyon (1260), Delley (1567), Utzenstorf (3428), Zurich (8046), and Ellighausen (8566).</p> <p>Experimental communities consisted of 32 different two-variety mixtures grown in 7.1-m<sup>2</sup> plots (1.5&nbsp;&times;&nbsp;4.7&nbsp;m). We replicated the mixture experiment three times per site with the exact same variety composition. We used a randomized block design, with plots being randomized at each site within each block. Density of sowing was 350&nbsp;seeds/m<sup>2</sup>, and seeds were mixed beforehand at a 50:50 ratio in terms of mass. We used the 50:50 mass ratio as this is what is generally done in practice by farmers and seed suppliers. Plots were sown mechanically each autumn. The plots were mechanically fertilized according to the Principles of Agricultural Crop Fertilisation in Switzerland (Federal Office for Agriculture) with an average of 140 kg N/ha (ammonium nitrate), applied in three splits (40 at the tillering stage&mdash;60 at stem elongation stage&mdash;40 when the flag leaf is visible). The experimental trials were conducted following the extenso Swiss scheme, which means that there was no application of any fungicide, insecticide, or plant growth regulator.&nbsp;</p> <p>The performances of single varieties were obtained by going through the trials of the national variety testing program. We gathered the data for the years 2018/2019 and 2019/2020. The data regarding single varieties could be obtained for three out of the five sites used for the mixtures: 1260, 1567, and 8566. Because there were no national variety trials at the two other sites (8046, 3428), we could not get any data for single varieties in these sites. Thus, all further analyses including single variety data were only done for the three sites mentioned above. At each of these sites, the variety trials were located on the same plot as the mixture trials, even though a little further apart. Therefore, soil parameters and crop precedents were the same between the mixture and variety testing trials. Furthermore, we only selected the national variety testing trials that respected the&nbsp;<em>extenso</em> conditions, that is, no fungicide, pesticide, or growth regulator application, and that received the same amount of fertilization as the mixture trials. In 8566 and 1567, sowing and harvesting dates were identical between the two trials; in 1260, sowing and harvesting dates could vary but remained within a week of each other.</p> <p>&nbsp;</p> <p><em>Data collection&nbsp;</em></p> <p>For each plot, heading dates were monitored, and average height at BBCH 59&ndash;75 was measured.</p> <p>The prevalence of diseases was scored twice in the growing season. Specifically, the severity of brown rust, yellow rust, powdery mildew, and Septoria tritici blotch was assessed. This was performed by grading each individual plot from 1 to 9 for each disease, with 1 representing no disease and 9 a complete infection. The scoring scale follows a logistic progression based on the symptoms of the top three leaves. We used the data from the final scoring for statistical analysis, as the disease severity was usually more important then.</p> <p>At maturity, we harvested each plot with a combine harvester. The harvested grains were dried when needed, weighed a first time, then sorted and cleaned by air and with a sieve cleaner, and subsequently weighted again. We measured specific weight and water content at the plot level using a Dickey-John machine (GAC 2100). Grain yield was subsequently standardized to 15% of humidity. Protein content was measured at the site level with a near-infrared instrument (ProxiMate; B&uuml;chi instruments).</p>

opencc-by-4.0Nov 2023View details →
dryad40/100

Data from: Earlier flowering of winter oilseed rape compensates for higher pest pressure in warmer climates

<p>Pest abundance and timing of migration relative to the vulnerable crop stage influence the severity of crop damage and yield loss to insect pests in oilseed rape (OSR). Both abundance and timing are influenced by landscape composition, changes therein due to crop rotation, and temperature. The need for sustainable and temperature-adapted management strategies of OSR pests due to the environmental harm of current conventional practices and global warming calls for a better understanding of the combined effects of landscape composition and temperature on pest abundances, larval parasitism, crop damage and yield, but also of the role of crop phenology for crop damage and yield under field conditions. Here, 29 winter OSR crops were studied along a multi-annual mean temperature gradient (MAT, 1981–2010) in Bavaria, Germany. We measured pest abundances (pollen beetles, stem weevils), crop damage (bud loss, stem tunnelling), pollen beetle larval parasitism and crop yield and calculated Julian dates of flowering from biweekly observations of growth stages. Pest abundances and parasitism were analysed with regard to MAT and landscape parameters at six scales (non-crop habitat and OSR area, change in the proportion of OSR area relative to the previous year; 0.6 km, and 1–5 km in 1-km steps), while analysis of crop damage and yield also included Julian date of flowering. Pollen beetle abundance was increased under higher MAT, but less strongly when OSR proportions were high (1-km scale) and not strongly reduced relative to the previous year (5-km scale), while pollen beetle larval parasitism was overall low but exceeded 30% (considered as threshold for effective natural control) occasionally under both low and high MAT. In contrast to abundance of adult pollen beetles, stem weevil larval abundance – as well as stem damage – did not respond to landscape composition nor MAT. Despite high abundance of adult pollen beetles under high MAT, crop yield was high (and the proportion of bud loss low) under high MAT when OSR flowered early. Our results underpin the potential of targeted landscape management (e.g. through regionally coordinated crop rotations) and timing of flowering (e.g. through cultivar choice) for environment-friendly and temperature-adapted pest management in winter OSR.</p>

opencc-zeroNov 2022View details →
zenodo40/100

Winter Constellations

<p>Winner in the 2022 IAU OAE Astrophotography Contest, category Still images of celestial patterns.</p> <p>Taken from the Kottamia Astronomical Observatory, Cairo, Egypt, in December 2021, this image shows a few prominent winter constellations of the northern sky above the largest telescope in North Africa.</p> <p>The photograph depicts the constellation of Orion (prominently in the middle of the image) with its belt of stars pointing up to Aldebaran in Taurus and down to Sirius in Canis Major. Aldebaran is a reddish star that we see in front of the open star cluster of the Hyades (at the upper right edge of the image), which is the face of Taurus, the bull. The bright white star is Sirius, the brightest star in the night sky. Its Greek name (Seirios) means &ldquo;the burner&rdquo; and can be understood metaphorically as &ldquo;the brightest&rdquo;.</p> <p>This constellation has been represented in a variety of different cultures from all over the world. The ancient Egyptian religion also associates the constellation of Orion with a male figure, namely the god Osiris. It is told that Osiris was murdered by his envious brother Seth, who then dismembered the body and scattered the pieces all over the land. Fortunately, Osiris&rsquo;s sister-wife Aset (Greek: Isis) is the most powerful sorceress and protective mother goddess. She collected the pieces, put them back together and breathed life back into the god. Aset is seen in the star pattern around the bright star Sirius at the bottom of the photograph. The Egyptian name for Sirius (and adjacent areas) is Sopdet (Greek: Sothis). The heliacal rise of Sirius in summer was a harbinger of the Egyptian new year.&nbsp;</p> <p>Going north, we can spot a bluish star. This is Alhena, one of the stars in the feet of the zodiacal constellation Gemini, the twins, whose bright head stars would be beyond the upper left edge of the photograph. In the top centre we can see the star Elnath, in the constellation of Auriga, the charioteer. It is associated with Erichthonius, a hero of Greek mythology believed to be the inventor of the four-horse chariot. This same star is also considered the tip of the upper horn of Taurus, the bull. In Greek mythology Taurus is associated with the god Zeus who had sent him to rob a princess. It is commonly known that this Greek story was invented in order to include the Babylonian constellation in Greek mythology. In the Mesopotamian Gilgamesh saga, which is one of the oldest pieces of literature that we know (being traced back to the 3rd millennium), Taurus is the bull of heaven, sent by a jealous goddess and defeated by the king of Uruk to save his people. In the sky it harbours several interesting astronomical objects.</p> <p>Credit: Mohamed&nbsp;Aboushelib/IAU OAE&nbsp;(<a href="https://creativecommons.org/licenses/by/4.0/legalcode">CC BY&nbsp;4.0</a>)</p>

opencc-by-4.0Dec 2022View details →
zenodo40/100

CIMMYT winter wheat product profiles 2022

<p>Detailed target product profiles for CIMMYT winter wheat breeding 2022. The product profiles are the trait specifications for selection and release of material from the two CIMMYT winter wheat breeding pipelines: (<em>1) Hard winter, cold tolerant &amp; irrigated, normal maturity</em> (denoted HWW-CTI-NM) and <em>(2) Hard winter, cold tolerant, drought tolerant, normal maturity </em>(denoted HWW-CTD-NM).&nbsp;Product profiles are defined as in the Excellence in Breeding Toolbox for &ldquo;product design and management&rdquo; (https://excellenceinbreeding.org/toolbox/tools/cgiar-seed-product-market-segment-database).</p> <p>Traits include&nbsp;grain and processing traits, nutritional enhancement, agronomic and disease traits. For winter wheat, no specific production, multiplication, or unique product registration traits apply in 2022 so these fields in the product profiles are marked as not applicable (NA). Traits are listed by category and assigned a measurement scale which is used in selection along with a minimum score. The traits are differentiated by requirement: either as &ldquo;must have&rdquo; or &ldquo;nice to have&rdquo; as well as the requirement for improvement (vs. maintenance). Indication of a trait as a threshold trait indicates it is a requirement for release of material from the breeding pipeline.</p>

opencc-by-4.0Dec 2022View details →
zenodo40/100

Warm Winter Night Over Spiš Region

<p>Winner in the 2022 IAU OAE Astrophotography Contest, category Still images of celestial patterns.</p> <p>&nbsp;</p> <p>This image, taken in Slovakia in January 2022, shows regions of the Milky Way and a rich variety of constellations. The summer constellations of the northern hemisphere are very low in the sky towards the bottom-right. The bright stars of Cygnus and Lyra shine through the artificial lights at the horizon. The huge array of northern winter and autumn constellations with many bright stars are associated with diverse cultural stories.</p> <p>For the Lakota people in North America the belt of the Orion constellation represents the spine of a bison (&ldquo;Tayamnicankh&rdquo;). Orion, the Hunter of Greek mythology, is sometimes described chasing the Seven Sisters, the Pleiades. The Arabs transformed this view by considering the follower of the Pleiades only one star instead of a constellation. Aldebaran, the star in the right eye of Taurus, the Bull, comes from this interpretation, because the name Aldebaran derives from al-dabaran, The Follower.</p> <p>At the bottom-right, on the horizon, we can see the milky lightcone of the Zodiacal light stretching from the constellation Pisces through Aries, almost reaching the Pleiades, indicating the path of the planets and the Moon in this area. The Pleiades and the Hyades together form a gate on this path, where the heavenly bodies occasionally pass before entering the Milky Way. The planets were considered sheep in ancient Babylon and the modern constellation Orion was considered the &ldquo;True Shepherd&rdquo; of the Sky, with his shepherd&rsquo;s tool reaching the ecliptic. In Roman tradition, the bright white star above the Pleiades and the Milky Way is called Capella, the Goat, which can be traced back to an Egyptian constellation in this area.</p> <p>Above the treetop in the middle-right part of the image, we see the autumn square, the Andromeda Galaxy and the W-shaped pattern of Cassiopeia. To the left of this group, in the central part of the visible Milky Way, is the constellation Perseus, with Cepheus in the dark area above Cassiopeia completing the celestial family. The Andromeda saga is a Greek story from the area that is now called Israel, and is rooted in Syrian traditions. The location of Andromeda was considered by the ancient Babylonians as the location of the goddess of sexual love, and by the Syrians as the location of the goddess of fertility. According to the saga, Andromeda was chained to a rock at the coast of Jaffa (Tel Aviv) in order to protect her land from a sea monster. The name of the hero who rescued her is Perseus, probably meaning &ldquo;from Persia&rdquo; (today&rsquo;s Iran).</p> <p>Noticeable in the valley are the lights from towns. The yellow light above the horizon indicates larger cities there, which are given away by their light pollution.</p> <p>Credit: Robert Barsa/IAU OAE&nbsp;(<a href="https://creativecommons.org/licenses/by/4.0/legalcode">CC BY&nbsp;4.0</a>)</p>

opencc-by-4.0Dec 2022View details →
zenodo40/100

Winter Milky way

<p>Winner in the 2022 IAU OAE Astrophotography Contest, category Still images of celestial patterns.</p> <p>&nbsp;</p> <p>Taken near Lake Misurina in the Veneto region of Italy in February 2019, this image shows a clear and starry sky over a winter landscape.</p> <p>We can see part of the Milky Way arc. From the left side, towards the south-east, we see Sirius, &quot;The Burner&quot; in Greek, the brightest star in the night sky. It is part of the constellation Canis Major, The Great Dog, one of the dogs of Orion, the great hunter, in Greek mythology. Orion&rsquo;s other dog, Canis Minor, the Small Dog, is represented by the bright star Procyon and its fainter neighbours. The Greek star name means &ldquo;The One [rising] before The Dog&rdquo; and the star is seen at the top left side of the image just above the arc of the Galaxy. Orion lies to the right of Canis Major. We can spot its characteristic &ldquo;belt&rdquo;, an asterism composed of three bright stars aligned in a straight line.&nbsp;</p> <p>Above the treetops to the right of Orion, the open star clusters of the Hyades and the Pleiades in the constellation Taurus, the Bull, are visible. According to ancient lore, these two clusters form a Celestial Gate directly next to the intersection of the great circles of the ecliptic and the Milky Way. In Greco-Roman mythology, Taurus is associated with the god Zeus who is said to have used a bull to seduce the Phoenician princess Europa.</p> <p>Above the constellation Taurus, we can see a bright star just above the arc of the Galaxy. This is Capella, the brightest star of the constellation Auriga, The Charioteer. This is one of the 88 modern constellations and is associated with the Greek hero Erichthonius of Athens. Hindu astronomy considers Capella as the heart of Brahma, one of the three major gods. The indigenous people of Bororo in Brazil have a constellation representing a cayman, comprising some of the stars of Auriga and some stars from neighbouring constellations.</p> <p>To the right of Taurus, we find the modern constellation Perseus with the bright double star cluster h+chi Perseii, which represents the metal of Perseus&rsquo;s sabre in Greek mythology. Perseus is the hero who was sent out to prove himself, and happened to rescue Andromeda from the sea monster Cetus as the Roman poet Ovid wrote. We can also see the constellation Cassiopeia, associated with the queen and mother of Andromeda in Greek mythology. It is composed of five bright stars in the shape of a W, which was considered the asterism of The Key by the Greeks according to the poet Aratus. The recognisable shape is also associated with other mythologies: for instance, it represents the princess Sharmishtha in Hindu astronomy, a bat in Thailand, and a camel in native Arabic astronomy.</p> <p>In the gap between the trees, the Andromeda Galaxy is visible.</p> <p>Credit: Giorgia Hofer/IAU OAE&nbsp;(<a href="https://creativecommons.org/licenses/by/4.0/legalcode">CC BY&nbsp;4.0</a>)</p>

opencc-by-4.0Dec 2022View details →
zenodo40/100

Model for Calibrating a Model to Thirty Years of Data to Capture the Accumulation of Chloride from Winter Deicers in a Shallow Aquifer

<p>We created a ten layer model to simulate the flow and transport of chloride in Will County&rsquo;s shallow aquifer with Groundwater Vistas software. This model is transient with yearly stress periods starting in 1950 and ending in 2020.</p> <p>The groundwater flow model was developed using the U.S. Geological Survey (USGS) finite difference code MODFLOW-NWT (McDonald and Harbaugh 1988; Niswonger et al., 2011) within the graphical user interface Groundwater Vistas 7.24 (Rumbaugh and Rumbaugh, 2020). We simulated chloride transport with the MODFLOW post-processing package MT3D-USGS (Bedekar et al., 2016).</p> <p>See Methods Section of &#39;Calibrating a Model to Thirty Years of Data to Capture the Accumulation of Chloride from Winter Deicers in a Shallow Aquifer&#39;</p> <p>With questions email Cecilia Cullen (ccullen3@illinois,edu) or Daniel Abrams (dbabrams@illinois.edu)&nbsp;</p>

opencc-by-4.0Jan 2023View details →
zenodo40/100

Seaweed In Nuclear Winter Data Repository

<p>The Seaweed In Nuclear Winter Data Repository contains all the necessary environmental data to run the Seaweed Growth Model and simulate the potential growth of seaweed in the aftermath of a nuclear war. This data is derived from ocean simulations for a nuclear winter scenario and includes a control run and simulations for different levels of soot emissions into the atmosphere, ranging from 5 to 150 Tg. The data in this repository can be used as input for the Seaweed Growth Model, which is available in a separate repository (<a href="https://github.com/allfed/Seaweed-Growth-Model">https://github.com/allfed/Seaweed-Growth-Model</a>). The model simulates the growth of seaweed in a nuclear winter scenario. Instructions on how to run it can be found in the code repository.</p>

opencc-by-4.0Jan 2023View details →
zenodo40/100

Southeast Atlantic nitrate isotope data from winter 2017

<p>These data are a compilation of nitrogen (d15N) and oxygen (d18O) isotope measurements of nitrate from 0 to 1000m, from across the southeast section of the SAMBA transect (34.5&deg;S, spanning 0 - 17.8&deg;E). Samples were collected on board the R/V S.A. Agulhas II between 17 - 27 July 2017 (austral winter) using a Niskin bottle rosette and include samples taken from within an Agulhas Ring. The data help characterize the isotopic composition of&nbsp;southeast Atlantic&nbsp;water masses, and are useful in&nbsp;providing an overview of the dynamics of nitrogen cycling in the region.</p>

opencc-by-4.0Feb 2023View details →
dryad40/100

Phenological mismatch affects individual fitness and population growth in the winter moth

<p>Climate change can severely impact species that depend on temporary resources by inducing phenological mismatches between consumer and resource seasonal timing. In the winter moth, warmer winters caused eggs to hatch before their food source, young oak leaves, became available. This phenological mismatch changed the selection on the temperature sensitivity of egg development rate. However, we know little about the fine-scale fitness consequences of phenological mismatch at the individual level and how this mismatch affects population dynamics in the winter moth. To determine the fitness consequences of mistimed egg hatching relative to timing of oak budburst, we quantified survival and pupation weight in a feeding experiment. We found that mismatch greatly increased mortality rates of freshly hatched caterpillars, as well as affecting caterpillar growth and development time. We then investigated whether these individual fitness consequences have population-level impacts by estimating the effect of phenological mismatch on population dynamics, using our long-term data (1994–2021) on relative winter moth population densities at four locations in the Netherlands. We found a significant effect of mismatch on population density with higher population growth rates in years with a smaller phenological mismatch. Our results indicate that climate change-induced phenological mismatch can incur severe individual fitness consequences that can impact population density in the wild.</p>

opencc-zeroFeb 2023View details →
zenodo40/100

WACCM-X Northern Hemisphere Winter Ensemble

<p>Simulation output from the Whole Atmosphere Community Climate Model with thermosphere-ionosphere eXtension (WACCM-X) for 40 Northern Hemisphere winters. The simulations were performed as free-running simulations with constant geomagnetic and solar activity. Included output is the Northern Annular Mode (NAM), zonal mean temperature and zonal wind, residual circulation, atomic oxygen to molecular nitrogen ratio (O/N2), migrating semidiurnal tide (SW2), and the SW2 component of TEC. The data files are in support of the publication &ldquo;Influence of Stratosphere Polar Vortex Variability on the Mesosphere, Thermosphere, and Ionosphere&rdquo;</p>

opencc-by-4.0Mar 2023View details →
dryad40/100

Sex, body size, and winter weather explain migration strategies in a partial migrant population of American Kestrels (Falco sparverius)

<p>Given increasing evidence that climate change affects the annual cycles of birds, it is important to understand the mechanisms underlying individual migration strategies and population-level patterns in partial migrants. In this study, we found that thermoregulation (body size and winter temperatures) was a key driver of American Kestrel (<em>Falco</em> <em>sparverius</em>) migration decisions. The annual proportion of migrants in the population, however, was not explained by winter weather and may be the result of differential survival. We measured stable hydrogen isotope values (δD) of talon tissues collected from 501 breeding and overwintering birds to distinguish migrant from resident kestrels in a partially migratory population of American Kestrels in southwestern Idaho in 2013–2021. We then evaluated drivers of migration decisions by assessing potential correlates of migration strategies, whether individuals switched migration strategies between years, and whether the proportion of migrants in the population changed over time or was correlated with winter weather. Male kestrels were 1.6 times more likely to migrate than females, and in colder than average winters, smaller birds of both sexes were more likely to migrate than larger birds. Only 27% of 26 recaptured individuals showed evidence of switching their migration strategies on an annual basis. There was no temporal trend in the proportion of migrants in the population, but proportions varied between years. Interestingly, there was no association between winter minimum temperature anomalies and annual migrant proportions in the population, suggesting that differential over-winter survival, or other stochastic processes, may play an important role in population composition. As winters continue to warm, fewer kestrels may migrate and more may remain resident on breeding grounds. However, it is unclear how changes in migration strategies might affect population-level patterns and resilience to climate change.</p>

opencc-zeroApr 2023View details →
zenodo40/100

Data from: Comparing winter versus summer deepwater dissolved oxygen depletion with the potential for cross-seasonal forecasting of deepwater oxygen availability

<p>Depletion of deepwater dissolved oxygen (DO) in lakes has become increasingly prevalent and severe due to many external stressors, potentially threatening human-derived ecosystem services ranging from drinking water quality to fisheries. Using year-round, high-frequency DO data from 12 dimictic lakes, we compared three measures of deepwater DO depletion during winter and summer:&nbsp; DO depletion rate, DO minimum, and hypoxia duration. Hypoxia (DO &lt; 3 mg L<sup>-1</sup>) occurred in over half of the lakes and persisted an average of 83% longer in summer than in winter. While we found no difference in DO depletion rates between winter versus summer, these rates were strongly related to lake morphology in winter but water transparency and temperature in summer. Winter hypoxia duration was negatively related to summer hypoxia duration, suggesting potential utility for forecasting DO depletion in the subsequent summer. Spring mixing efficacy was strongly related to winter minimum DO saturation and hypoxia duration, and was also a strong predictor of summer minimum DO saturation and hypoxia duration. Hence, these cross-seasonal patterns suggest deepwater DO metrics can be used to forecast DO availability in subsequent seasons, modified by the relative importance of morphology, water transparency, and temperature. These findings can allow for improved, early management when DO is predicted to be critically low based on previous seasons&rsquo; DO measurements, which can work to minimize the negative consequences for water quality and fisheries health associated with severe DO depletion.</p>

opencc-by-4.0May 2023View details →
zenodo40/100

Data from Zeppenfeld et al. 2023: "Winter storm risk assessment in forests with high resolution gust speed data", Eur. J. For. Res.

<p>Single-tree damage data from winter storm event &quot;Lothar&quot; 1999 in Baden-Wurttemberg, Germany. The data set includes the response (damage or no damage) and covariates for model parametrisation as described in Zeppenfeld et al. (2023).</p>

opencc-by-4.0May 2023View details →
zenodo40/100

Figure 1 in Nematodes infest winter-active chironomids in Minnesota trout streams

Figure 1. Female Orthocladiinae longevity and survival probability with and without nematode parasitism in Ike's Creek. Longevity defined as days lived post collection. (a) Box and whisker boundaries signify the maximum, 75th percentile, median, 25th percentile, and minimum longevity values. Black diamonds (◆) indicate mean longevity and dots (•) indicate outliers. Wilcoxon tests with Benjamini &amp; Hochberg multiple test corrections were used to determine statistical differences between parasitized and non-parasitized individuals. (b) Kaplan-Meier survivorship curves indicate the proportion of individuals alive on a given day. Log-Rank tests were used to determine statistical differences between parasitized and non-parasitized individuals.

opencc-by-4.0Dec 2022View details →
zenodo40/100

Initiation Process of a Winter Cloud-to-Ground Lightning Flash

<p>Lightning&nbsp; location results data. This dataset includes complete data, which means it has not undergone quality control. The time needs to be subtracted from the corresponding paper (Initiation Process of a Winter Cloud-to-Ground Lightning Flash) by 1.165ms.</p>

opencc-by-4.0Jun 2023View details →
dryad40/100

Data from: Bet hedging is not sufficient to explain germination patterns of a winter annual plant

<div> <div> <div> <p>Bet hedging consists of life history strategies that buffer against environmental variability by trading off immediate and long-term fitness. Delayed germination in annual plants is a classic example of bet hedging and is often invoked to explain low germination fractions. We examined whether bet hedging explains low and variable germination fractions among 20 populations of the winter annual plant <em>Clarkia</em> <em>xantiana</em> ssp. <em>xantiana</em> that experience substantial variation in reproductive success among years. Leveraging 15 years of demographic monitoring and 3 years of field germination experiments, we assessed the fitness consequences of seed banks and compared optimal germination fractions from a density-independent bet-hedging model to observed germination fractions. We did not find consistent evidence of bet hedging or the expected trade-off between arithmetic and geometric mean fitness, though delayed germination increased long-term fitness in 7 of 20 populations. Optimal germination fractions were 2 to 5 times higher than observed germination fractions, and among-population variation in germination fractions was not correlated with risks across the life cycle. Our comprehensive test suggests that bet hedging is insufficient to explain the observed germination patterns. Understanding variation in germination strategies will likely require integrating bet hedging with complementary forces shaping the evolution of delayed germination.</p> </div> </div> </div>

opencc-zeroJul 2023View details →
zenodo40/100

Fig. 1 in Catch of Coho Salmon (Oncorhynchus kisutch) Infected with the Freshwater Parasite Salvelinema walkeri (Nematoda: Cystidicolidae) in the Gulf of Alaska in the Early Winter

Fig. 1. Locations of salmonid collection along a south-north transect (from 44°32′N to 52°06′N along ca. 145°W) in the Gulf of Alaska in mid-December 1992 and those of salmonids infected with Salvelinema walkeri in marine and estuarine waters based in this and past papers. Open circles, catch locations of infected salmonids; closed circles, locations with salmonid catch; and crosses, locations without salmonid catch. Location 1, 52°06′N, 145°56′W (this paper); location 2, the Columbia River estuary (Claxton et al. 2013); location 3, off Newport, Oregon (Olson 1978); locations 4 and 5, the Strait of Georgia near Nanoose (Margolis 1967a) and Nanaimo (Ekbaum 1935, 1936; Margolis 1967a), respectively; and locations 6–10, Cowichan Bay, Satellite Channel, the Strait of Juan de Fuca, Sechelt Inlet, and Howe Sound, respectively (Godfrey 1968).

opencc-by-4.0May 2023View details →
zenodo40/100

Eurasian beaver – A semi-aquatic ecosystem engineer rearranges the assemblage of terrestrial mammals in winter - dataset

<p>Dataset to paper of&nbsp;Fedyń, I., Przepi&oacute;ra, F., Sobociński, W., Wyka, J., &amp; Ciach, M. (2022). Eurasian beaver&ndash;A semi-aquatic ecosystem engineer rearranges the assemblage of terrestrial mammals in winter.&nbsp;<em>Science of The Total Environment</em>,&nbsp;<em>831</em>, 154919&nbsp;(<a href="https://doi.org/10.1016/j.scitotenv.2022.154919">https://doi.org/10.1016/j.scitotenv.2022.154919</a>).</p>

opencc-by-4.0Jul 2022View details →
dryad40/100

Data from: Weak evidence of trade-offs modulated by seed mass among a guild of closely related winter annuals

<p>This is R code for addressing the following research questions:</p> <p>(1) Do species differ in their average responses to density treatments?</p> <p>(2) Does seed mass explain species' responses to increasing densities of conspecifics?</p> <p>(3) Does seed mass explain species' responses to increasing densities of both conspecifics and heterospecifics?</p>

opencc-zeroJul 2023View details →

ScienceDex guides

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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.

allen-brain-atlas
neuroscienceopenDocumentation, web resources, and API references are available online.
Last verified 2026-04-30Open record

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.

abode-home-cage
behavioral-neuroscienceopenThe DataShare record exposes download links for annotations, documentation, license text, and the zipped per-snippet data directory.
Last verified 2026-04-30Open record

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.

dandi-nwb
electrophysiologyopenPublished Dandiset metadata and archive endpoints are available through the production DANDI API.
Last verified 2026-04-30Open record

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.

ibl
behavioral-neuroscienceopenPublic sessions can be searched and loaded from the IBL public data server through ONE.
Last verified 2026-04-29Open record

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.

openneuro
neuroscienceopenPublished datasets are available on demand over the internet.
Last verified 2026-04-29Open record