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796 results for “oak species”
Data from: Candidate gene SNP variation in floodplain populations of pedunculate oak (Quercus robur L.) near the species' southern range margin: weak differentiation yet distinct associations with water availability
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Leaf morphological data of oak species from two sampling sites
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Growth, defense, and storage responses of 12 oak (Quercus) species to varying locations and intensities of simulated herbivory
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Data from: Contrasting species decline but high sensitivity to increasing water stress on a mixed pine-oak ecotone
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Data for: Pangenome analysis reveals local adaptation to climate driven by introgression in oak species
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Population genomic analysis of an emerging pathogen Lonsdalea quercina affecting various species of oaks in western North America
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Walnut Gulch Experimental Watershed site, station Oak woodland vegetation zone in Walnut Gulch Watershed, study of plant species richness in units of noper30pt5m on a yearly timescale
The EcoTrends project was established in 2004 by Dr. Debra Peters (Jornada Basin LTER, USDA-ARS Jornada Experimental Range) and Dr. Ariel Lugo (Luquillo LTER, USDA-FS Luquillo Experimental Forest) to support the collection and analysis of long-term ecological datasets. The project is a large synthesis effort focused on improving the accessibility and use of long-term data. At present, there are ~50 state and federally funded research sites that are participating and contributing to the EcoTrends project, including all 26 Long-Term Ecological Research (LTER) sites and sites funded by the USDA Agriculture Research Service (ARS), USDA Forest Service, US Department of Energy, US Geological Survey (USGS) and numerous universities. Data from the EcoTrends project are available through an exploratory web portal (http://www.ecotrends.info). This web portal enables the continuation of data compilation and accessibility by users through an interactive web application. Ongoing data compilation is updated through both manual and automatic processing as part of the LTER Provenance Aware Synthesis Tracking Architecture (PASTA). The web portal is a collaboration between the Jornada LTER and the LTER Network Office. The following dataset from Walnut Gulch Experimental Watershed (WGE) contains plant species richness measurements in noper30pt5m units and were aggregated to a yearly timescale.
Plant species percent cover data: The Effect of Seed Addition on Biodiversity in an Oak Savanna
This experiment was established in an unfenced area of field D in the spring of 1991. There are 10 replicates of each of 5 treatments, making a total of 50 plots. Each plot is 1.5m x 1.5m with 1.0m aisles between the plots. The 50 plots were randomly assigned their treatments. Seeds were added to the plots in June of 1991 according to the following treatments: A. Complete Control B. Raked Control C. Forb Seed Added D. Grass Seed Added E. Forb and Grass Seed Added The number of grass and forb seedlings, in the center square meter, were counted in late July and late August of 1991. Percent cover estimates were done, also in the center square meter, of the established plants alone in late July and then, of the established plants and the seedlings together, in late August. Percent cover estimates will continue to be done on an annual basis. For a list of treatments, see the treatment layouts in file trmte91.
Plant species percent cover data: Soil Heterogeneity and Plant Diversity in an Oak Savanna
This experiment was established in field D in August of 1991. There are 30, 2m x 2m plots. These plots are in prairie openings in unmanipulated natural vegetation. They were placed in a haphazard manner, being about 20m apart within an opening. Each plot was divided into 16, 0.5m x 0.5m subplots. Percent cover estimates of vegetation are done in September for each of the sixteen subplots in each of the 30 plots.
FIGURE 6 in Andricus forni Pujade-Villar & Nicholls n. sp., a new species of oak gallwasp from China (Hymenoptera: Cynipidae)
FIGURE 6. Bayesian majority-rule consensus tree of 433bp of cytochrome b sequence derived from Asian Andricus species. Numbers at nodes indicate posterior probability support; major clades mentioned in the text are indicated by the letters A–D.
FIGURE 5. Andricus forni n in Andricus forni Pujade-Villar & Nicholls n. sp., a new species of oak gallwasp from China (Hymenoptera: Cynipidae)
FIGURE 5. Andricus forni n. sp.: (a) forewing, (b) frontal head of female with clear area around clypeus, (c) galls with details.
FIGURE 3. Andricus forni n in Andricus forni Pujade-Villar & Nicholls n. sp., a new species of oak gallwasp from China (Hymenoptera: Cynipidae)
FIGURE 3. Andricus forni n. sp., mesosoma: (a) female in dorsal view, (b) female in lateral view, (c) female propodeum, (d) male propodeum.
FIGURE 2. Andricus forni n in Andricus forni Pujade-Villar & Nicholls n. sp., a new species of oak gallwasp from China (Hymenoptera: Cynipidae)
FIGURE 2. Andricus forni n. sp., antennae: (a) female antenna with detail of last flagellomeres, F11 and F12 completely separated, b) female antenna with detail of last flagellomeres, F11 and F12 incompletely separated, (c) male with detail of F1.
FIGURE 1 in Andricus forni Pujade-Villar & Nicholls n. sp., a new species of oak gallwasp from China (Hymenoptera: Cynipidae)
FIGURE 1. Head of Andricus forni n. sp.: (a) female in frontal view, (b) male in frontal view, (c) female in dorsal view, (d) male in dorsal view, (e) female in posterior view, (f) male in posterior view.
FIGURE 36. Maximum parsimony tree for cytochrome b in Two new species of oak gall wasps from Turkey (Hymenoptera: Cynipidae Cynipini)
FIGURE 36. Maximum parsimony tree for cytochrome b sequences indicating the relationships of Cynips izzetbaysali sp. nov. and Callirhytis afion, sp. nov. to other Cynipini species. GenBank Accession number for each species used in the analysis is given with the species names. Two new species included in the analysis are coloured in red. Numbers above nodes indicate posterior probability support values.
FIGURES 32–35 in Two new species of oak gall wasps from Turkey (Hymenoptera: Cynipidae Cynipini)
FIGURES 32–35. Callirhytis afion, sp. nov., sexual generation: 32, female metasoma, lateral view. 33, first year acorn of Q. cerris, 34, dissected acorn with gall chambers inside, 35, dissected larval chambers.
FIGURES 15–25 in Two new species of oak gall wasps from Turkey (Hymenoptera: Cynipidae Cynipini)
FIGURES 15–25. Callirhytis afion, sp. nov., sexual generation. 15–18, head, female: 15, anterior view, 16, dorsal view, 17, posterior view, 18, lateral view. 19–22, head, male: 19, anterior view, 20, dorsal view, 21, posterior view, 22, lateral view. 23–25, antenna: 23, female, 24–25, male.
FIGURES 11–14 in Two new species of oak gall wasps from Turkey (Hymenoptera: Cynipidae Cynipini)
FIGURES 11–14. Cynips izzetbaysali, sp. nov., asexual female. 11, metasoma, lateral view. 12, ventral spine of hypopygium, ventral view. 13–14, asexual galls.
Combining Satellite Remote Sensing and Climate Data in Species Distribution Models to Improve the Conservation of Iberian White Oaks (Quercus L.)
<p>The Iberian Peninsula hosts a high diversity of oak species, being a hot-spot for the conservation of European White Oaks (Quercus) due to their environmental heterogeneity and its critical role as a phylogeographic refugium. Identifying and ranking the drivers that shape the distribution of White Oaks in Iberia requires that environmental variables operating at distinct scales are considered. These include climate, but also ecosystem functioning attributes (EFAs) related to energy–matter exchanges that characterize land cover types under various environmental settings, at finer scales. Here, we used satellite-based EFAs and climate variables in species distribution models (SDMs) to assess how variables related to ecosystem functioning improve our understanding of current distributions and the identification of suitable areas for White Oak species in Iberia. We developed consensus ensemble SDMs targeting a set of thirteen oaks, including both narrow endemic and widespread taxa. Models combining EFAs and climate variables obtained a higher performance and predictive ability (true-skill statistic (TSS): 0.88, sensitivity: 99.6, specificity: 96.3), in comparison to the climate-only models (TSS: 0.86, sens.: 96.1, spec.: 90.3) and EFA-only models (TSS: 0.73, sens.: 91.2, spec.: 82.1). Overall, narrow endemic species obtained higher predictive performance using combined models (TSS: 0.96, sens.: 99.6, spec.: 96.3) in comparison to widespread oaks (TSS: 0.80, sens.: 92.6, spec.: 87.7). The Iberian White Oaks show a high dependence on precipitation and the inter-quartile range of Normalized Difference Water Index (NDWI) (i.e., seasonal water availability) which appears to be the most important EFA variable. Spatial projections of climate–EFA combined models contribute to identify the major diversity hotspots for White Oaks in Iberia, holding higher values of cumulative habitat suitability and species richness. We discuss the implications of these findings for guiding the long-term conservation of IberianWhite Oaks and provide spatially explicit geospatial information about each oak species (or set of species) relevant for developing biogeographic conservation frameworks.</p>
Data from: Flower phenology as a disruptor of the fruiting dynamics in temperate oak species
<ul> <li> <p class="western"><span>Many perennial plants display masting, <i>i.e.,</i> fruiting with strong interannual variations, irregular and synchronized between trees within the population. Here, we tested the hypothesis that the early flower phenology in temperate oak species promotes stochasticity into their fruiting dynamics, which could play a major role in tree reproductive success.</span></p> </li> <li> <p class="western"><span>From large field monitoring network, we compared the pollen phenology between temperate and Mediterranean oak species. Then, focusing on temperate oak species, we explored the influence of the weather around the time of bud-burst and flowering on seed production, and simulated with a mechanistic model the consequences an evolutionary shifting of flower phenology would have on fruiting dynamics.</span></p> </li> <li> <p><span>Temperate oak species release pollen earlier in the season than Mediterranean oak species. Such early flowering in temperate oak species results in pollen being often released during unfavorable weather conditions and resulting in frequent reproductive failure. If pollen release was delayed due to natural selection, fruiting dynamics would exhibit much reduced stochastic variation.</span></p> </li> <li> <p class="western"><span>We propose that early flower phenology might be adaptive by making mast-seeding years rare and unpredictable, which would greatly help controlling the dynamics of seed consumers.</span></p> </li> </ul>
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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.