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251 results for “spatial heterogeneity”
Data from: Demographic consequences of an extreme heatwave are mitigated by spatial heterogeneity in an annual monkeyflower
<p>This repository includes three different datasets as well as associated readme files. One dataset contains fitness data for individuals planted within a common garden experiment planted near the Browder Ridge Trailhead, Oregon USA in 2019. The second dataset contains fecundity data from 12 populations in the Central Oregon Cascades in 2018 and 2019. The final dataset contains demographic and phenological data from eleven populations in the Central Oregon Cascades in 2019. </p>
Data from: Microbial activity contributes to spatial heterogeneity of wetland methane fluxes
<p>The emission of methane from wetlands is spatially heterogeneous, as concurrently measured surface fluxes can vary by orders of magnitude within the span of a few meters. Despite extensive study and the climatic significance of these greenhouse gas emissions, it remains unclear what drives these large within-site variations, creating a knowledge-gap that impedes a mechanistic understanding of wetland fluxes. While geophysical variables including water table depth (WTD) and soil temperature are known to correlate with CH<sub>4</sub> flux, measurable variance in these parameters declines as spatial and temporal scales become finer. Here, we leveraged depth-stratified gene abundance and gene expression measurements of methanogenesis and methanotrophy to investigate CH<sub>4</sub> flux variance at an ombrotrophic peat bog. Our results show that the flux variance was strongly correlated to methanogen abundance and that peat depth also exerted significant control over CH<sub>4</sub> flux, methanogen abundance, and the relationship between the two. Correlations between CH<sub>4</sub> flux and either WTD or soil temperature were absent or minimal. These findings suggest that microbial factors likely underlie localized variance in wetland CH<sub>4</sub> flux, and that a greater reliance on biological predictors could improve our ability to understand wetland methane fluxes at finer scales than is currently possible.</p>
Data from: Soil nutrient availability rather than spatial nutrient heterogeneity shapes the intraspecific response of root architectural, morphological, and mycorrhizal traits in <em>Vaccinium myrtillus</em>
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Data from: Spatial heterogeneity of habitat selection of large carnivores and their ungulate prey in proximity to roads
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Spatial heterogeneity in benthic foraminiferal assemblages track regional impacts of paleoenvironmental change across Cretaceous OAE2
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Foraging in nature: contrasting responses to resource heterogeneity at small and large spatial scales.
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Data from: Spatial heterogeneity in species composition constrains plant community responses to herbivory and fertilization
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Data from: Demographic consequences of an extreme heatwave are mitigated by spatial heterogeneity in an annual monkeyflower
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Data from: Spatial heterogeneity of plant-soil feedbacks increases per capita reproductive biomass of species at an establishment disadvantage
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Data from: Microbial activity contributes to spatial heterogeneity of wetland methane fluxes
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Chromosomal evolution, environmental heterogeneity, and migration drive spatial patterns of species richness in Calochortus (Liliaceae)
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Data from: Soil carbon response to woody plant encroachment: Importance of spatial heterogeneity and deep soil storage
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Data from: Jointly representing long-range genetic similarity and spatially heterogeneous isolation-by-distance
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Data from: Variation in coexisting birds to exploit spatial heterogeneity in small mammal activity
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Spatial heterogeneity in soil pyrogenic carbon mediates tree growth and physiology following wildfire
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Data from: Mapping the spatial heterogeneity of watershed ecosystems and water quality in rainforest fjordlands
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Spatial and temporal heterogeneity in pollinator communities maintains within-species floral odour variation
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Data from: Joint spatial modeling of cluster size and density for a heavily hunted primate persisting in a heterogeneous landscape
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Spatial heterogeneity and environmental predictors of permafrost region soil organic carbon stocks
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Riparian Carbon and Nitrogen Cycling: Influences of Spatial Heterogeneity and Hydrologic Vectors
Terrestrial and aquatic ecosystem ecologists study the same phenomena (e.g., nutrient cycling, energy flow, succession) but they do so within separate conceptual frameworks. Terrestrial frameworks address state factors of climate, organisms, parent material, topography, and time to understand ecosystem processes within a location, but less often consider how ecosystems are connected. Aquatic ecologists, especially those studying flowing waters, emphasize the role of water as a means of propagating processes and materials through space and time. Both terrestrial and aquatic ecosystems contain hydrologic vectors as well as soils or sediments that record the influences of state factors. This dissertation is an investigation of carbon and nitrogen cycling in the stream-riparian corridor of the San Pedro River, a large desert river, and tests the relative effects of soil characteristics and hydrologic vectors. Riparian zones are well suited to such investigations because they are spatially heterogeneous and subject to material and water inputs from multiple hydrologic vectors. Spatially explicit methods showed that flood vectors homogenized soil characteristics and denitrification along a stream reach with frequent overbank floods, whereas soils of a riparian site that was infrequently inundated by floods were heterogeneous. Legacies of previous floods appeared to determine the spatial locations of denitrification at the latter site. At a plot scale, manipulation of precipitation and flood vectors across a gradient of soil types showed that water functioned as an essential resource during the dry season, resulting in increased emissions of trace gases following simulation of floods. Following inundation of riparian soils by several monsoon floods, however, further addition of water appeared to suppress biogeochemical activity by decreasing oxygen availability. Thus desert riparian ecosystems appear to shift seasonally along a terrestrial-aquatic continuum, functioning si
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.
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.