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411 results for “spatial variation”
FIG. 3 in Spatial Variation of False Map Turtle (Graptemys pseudogeographica) Bacterial Microbiota in the Lower Missouri River, United States
FIG. 3. Gut bacteria community relative abundances shown with each bar representing an individual sample in the corresponding location. Each color is representative of a corresponding phylum (or in the case of ''Bacteria_unclassified,'' unidentified members of the bacteria). Bars remain unnormalized with remaining space composed of excluded low representation groups (Ĺ2% of total abundance).
FIG. 1 in Spatial Variation of False Map Turtle (Graptemys pseudogeographica) Bacterial Microbiota in the Lower Missouri River, United States
FIG. 1. Locations where cloacal microbiota samples were taken from False Map Turtles (Graptemys pseudogeographica) along the lower Missouri River between South Dakota and Nebraska, United States. Sites include: 1) James River, 2) Goat Island, and 3) Vermillion River. Major habitat types along the Missouri River are indicated (green = riparian forests; tan = sandbars) and modified from Dixon et al. (2015).
FIG. 2. Nonmetric multidimensional scaling calculated with the Bray-Curtis distance metric using a in Spatial Variation of False Map Turtle (Graptemys pseudogeographica) Bacterial Microbiota in the Lower Missouri River, United States
FIG. 2. Nonmetric multidimensional scaling calculated with the Bray-Curtis distance metric using a square root transformation and Wisconsin double-standardization. Location is represented by color, and sex is represented by shape. Stress of fit for the ordination is reported at 0.145. Axis titles represent the two dimensions to which the data have been ordinated.
Spatial and temporal variation in the diet of introduced sambar deer (Cervus unicolor) in an alpine landscape
<p><strong>Context</strong>. In south-eastern Australia, the abundance and distribution of non-native sambar deer (<em>Cervus</em> <em>unicolor</em>) has increased dramatically in alpine environments. As a result, significant concern surrounds the potential for the species to impact rare plant species and vegetation communities through browsing.</p> <p><strong>Aims</strong>. We aimed <span>to determine the diversity of the plant species eaten by sambar deer in the Alpine National Park and to understand any spatial and temporal variation in deer diets.</span></p> <p><strong>Methods</strong>. We collected 90 sambar deer faecal pellet samples over a three-month flowering period across two contrasting study sites with differing elevation, vegetation, and underlying geology. We performed DNA sequencing using the ITS2 gene region and assigned dietary items to the lowest taxonomic level possible. The frequency of occurrence and sequencing read depth of each dietary item were calculated to investigate the diet of sambar deer at spatial and temporal scales, and dietary preferencing was assessed by comparing the frequency of occurrence of dietary items to the observation records for each dietary item in the study area.</p> <p>Key results. We detected a total of 369 unique plant <span>Operational Taxonomic Units </span>(OTUs) from sambar deer faecal samples, representing 35 families and 80 genera. Considerable variation in the diet was observed over small spatial scales, and evidence of temporal diet variation was noted in one of the study sites. We detected <span>Silky Snow-daisy (<em>Celmisia</em> <em>sericophylla</em>), which is currently listed as critically endangered under the Flora and Fauna Guarantee Act 1988, and </span>Hawkweed (<em>Pilosella</em> spp.), a highly invasive, non-native taxon which is sparingly established in Alpine ecosystems.</p> <p><strong>Conclusions</strong>. Sambar deer displayed an intermediate feeder behaviour in alpine environments, foraging on a variety of forbs and shrubs, however, forbs were the dominant dietary items. The spatial variation observed in the diet of sambar deer suggests that individual deer are unlikely to be dispersing widely while foraging. </p> <p><strong>Implications</strong>. Our results emphasise the need for careful evaluation of sambar deer impacts within individual sites and at small spatial scales. The detection of species of conservation significance in the diet indicates that the presence of sambar deer should be considered a significant risk to biodiversity in areas of high conservation value.</p>
Data from: Spatial variation in bird pollination and its mitigating effects on the genetic diversity of pollen pools accepted by Camellia japonica trees within a population at a landscape level
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Individual-level leaf trait variation and correlation across biological and spatial scales
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Data from: 10 years of life in compost: temporal and spatial variation of North German C. elegans populations
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Data from: Temporal variation in spatial genetic structure during population outbreaks: distinguishing among different potential drivers of spatial synchrony
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Data from: Juvenile survival, competing risks, and spatial variation in mortality risk of a marine apex predator
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Data from: Ignoring spatial effects results in inadequate models for variation in littoral macroinvertebrate diversity
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Data from: Reproduction under light pollution: maladaptive response to spatial variation in artificial light in a glow-worm
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Data from: Identifying drivers of spatial variation in occupancy with limited replication camera trap data
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Multiple long-term, landscape-scale datasets reveal intraspecific spatial variation in temporal trends for bird species
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Data from: Spatial variation buffers temporal fluctuations in early juvenile survival for an endangered Pacific salmon
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Data from: Spatial genetic variation and habitat association of Rhinichthys cataractae, the longnose dace, in the Driftless Area of the upper Mississippi River basin
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Data from: Spatial variation in the biotic and abiotic filters of oyster recruitment: Implications for restoration
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The spatial analysis of biological interactions: morphological variation responding to the co-occurrence of competitors and resources
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Temporal and spatial variation in population structure among brooding sea stars in the genus Leptasterias
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Data from: Lack of spatial structure for phenotypic and genetic variation despite high self-fertilization in Aquilegia canadensis (Ranunculaceae)
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Data from: The impact of spatial scale and habitat configuration on patterns of trait variation and local adaptation in a wild plant parasite
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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.