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4,753 results for “SHAPE”
Herbivory and nutrients shape grassland soil seed banks
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The shape of phylogenies under phase-type distributed times to speciation and extinction
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Semi‐quantitative metabarcoding reveals how climate shapes arthropod community assembly along elevation gradients on Hawaii Island
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Data and analysis from: Body mass, temperature, and depth shape the maximum intrinsic rate of population increase in sharks and rays
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Severity outweighs pyrodiversity in shaping avian and bat species distributions following an oak woodland mega-fire
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Data from: Local adaptation in shell shape traits of a brooding chiton with strong population genomic differentiation
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Can developmental plasticity shape sexual competition and promote reproductive isolation?
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Exceptions to the rule: Relative roles of time, diversification rates and regional energy in shaping the inverse latitudinal diversity gradient
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Data from: Island size shapes genomic diversity in a great speciator (Aves: Zosterops)
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Social polyandry shapes sperm morphology
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Data from: Behavior shapes retinal motion statistics during natural locomotion
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Data from: Interplay of trophic relaxation and directional selection shapes eco-evolutionary responses to selective harvest in predator-prey systems
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Geographic range shapes influence species richness in global hotspots
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Data from: Could adult or juvenile dispersal shape geographical parthenogenesis? Evidence from the facultatively parthenogenetic phasmid Megacrania batesii
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Data from: Turbulence organization and mean profile shapes in the stably stratified boundary layer: Zones of uniform momentum and air temperature
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Germination response to winter temperatures changes with seed shape and length of temperature exposure
In many regions, the climate is changing faster during winter than during any other season, and a loss of snow cover combined with increased temperature variability can expose overwintering organisms to harmful conditions. Understanding how species respond to these changes during critical developmental times, such as seed germination, helps us assess ecological implications of winter climate change. To address this concern, we measured the breaking of seed dormancy and cold tolerance of temperate grassland species in the lab and field. In the lab, we ran germination trials testing the tolerance of 17 species to an extreme cold event. In the field, we deployed seeds of two species within a snow manipulation experiment at three locations and measured germination success biweekly from seeds subjected to ambient and reduced snow cover from winter into spring. From lab trials, cold tolerance varied among species, with seed germination decreasing <10% to 100% following extreme cold events. Cold tolerance was related to seed traits, specifically less round seeds, seeds that required cold stratification, and seeds that mature later in the season tended to be more impacted by extreme cold temperatures. This variation in seed cold tolerance may contribute to altered community composition with continued winter climate change. In the field, germination increased through late winter, coinciding with the accumulation of days where temperatures were favorable for cold stratification. Through spring, germination success decreased as warm temperatures accumulated. Collectively, species-specific seed cold tolerances and mortality rates may contribute to compositional changes in grasslands under continued winter climate change.
Trait coordination and environmental filters shape functional trait distributions of forest understory herbs
We test the importance of environmental filtering and trait covariance for structuring the functional traits of understory herbaceous communities.
Copulatory ducts curved or s-shaped, longer than diameter of spermathecae (10a) in A revision of the African wolf spider genus Amblyothele Simon
Copulatory ducts curved or s-shaped, longer than diameter of spermathecae (10a)
Spermathecae globular (c5), copulatory ducts S-shaped (c6) in An of Zelotibia (Araneae, Gnaphosidae), a spider genus with a species swarm in the Albertine Rift
Spermathecae globular (c5), copulatory ducts S-shaped (c6)
Epigynal scape tongue-shaped, the tip smoothly rounded (c1) in An of Zelotibia (Araneae, Gnaphosidae), a spider genus with a species swarm in the Albertine Rift
Epigynal scape tongue-shaped, the tip smoothly rounded (c1)
ScienceDex guides
Understand access before you commit
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.