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535 results for “scavengers”
Data from: Roads do not increase carrion use by a vertebrate scavenging community
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Data from: Puma predation subsidizes an obligate scavenger in the high Andes
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Scavenging patterns of an inbred wolf population in a landscape with a pulse of human-provided carrion
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Data from: An assessment of tree availability as a possible cause of population declines in scavenging raptors
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Data from: An ECF-type transporter scavenges heme to overcome iron-limitation in Staphylococcus lugdunensis
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Scavenger community structure along an environmental gradient from boreal forest to alpine tundra in Scandinavia
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Data from: Tracking data and retrospective analyses of diet reveal the consequences of loss of marine subsidies for an obligate scavenger, the Andean condor
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Metabarcoding for parallel identification of species, sex and diet of obligate scavengers: an application to globally-threatened Gyps vultures
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Data from: Disruptive sexual selection on body size in the polyphenic black scavenger fly Sepsis thoracica
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Scavenging beetles control the temporal response of soil communities to carrion decomposition
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Data from: Viability selection by invertebrate predators in the polyphenic scavenger fly Sepsis thoracica
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Data from: Kleptoparasitism and scavenging can stabilize ecosystem dynamics
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Data from: Carcass predictability but not domestic pet introduction affects functional response of scavenger assemblage in urbanised habitats
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The Hydroperoxyl Radical Scavenging Activity of Sulfuretin: Insights from Theory
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Karyotypes of the water scavenger beetles (Coleoptera: Hydrophilidae): new data and review of published records
<p>The dataset includes original photos of mitotic and meiotic nuclei and all working karyograms used for the paper, including those not published on the plates in the paper.</p>
Data from: Special delivery: scavengers direct seed dispersal towards ungulate carcasses
Cadaver decomposition-islands around animal carcasses can facilitate establishment of various plant life. Facultative scavengers have great potential for endozoochory, and often aggregate around carcasses. Hence, they may disperse plant seeds that they ingest across the landscape towards cadaver decomposition-islands. Here, we demonstrate this novel mechanism along a gradient of wild tundra reindeer carcasses. First, we show that the spatial distribution of scavenger feces (birds and foxes) was concentrated around carcasses. Second, feces of the predominant scavengers (corvids) commonly contained viable seeds of crowberry, a keystone species of the alpine tundra with predominantly vegetative reproduction. We suggest that cadaver decomposition-islands function as endpoints for directed endozoochory by scavengers. Such a mechanism could be especially beneficial for species that rely on small scale disturbances in soil and vegetation, such as several Nordic berry-producing species with cryptic generative reproduction.
Data from: Body size as a driver of scavenging in theropod dinosaurs
Theropod dinosaurs dominated Earth's terrestrial ecosystem as a diverse group of predators for over 160 million years, yet little is known about their foraging ecology. Ranging from the chicken-sized Microraptor up to the whale-sized Giganotosaurus, maintaining a balanced energy budget presented a major challenge in the face of intense competition and the demands of ontogenetic growth. Facultative scavenging, a behaviour present in almost all modern predators, may have been an important behaviour used to supplement energetically expensive lifestyles. By using agent-based models based on the allometric relationship between size and foraging behaviours, we show that theropods between 27 kg and 1044 kg would have gained a significant energetic advantage over individuals at both the small and large extremes of theropod body mass through their scavenging efficiency. These results were robust to rate of competition, primary productivity, and detection distance. Our models demonstrate the potential importance of facultative scavenging in theropods and the role of body size in defining its prevalence in Mesozoic terrestrial systems.
Data from: Rapid scavenging of jellyfish carcasses reveals the importance of gelatinous material to deep-sea food webs
Jellyfish blooms are common in many oceans, and anthropogenic changes appear to have increased their magnitude in some regions. Although mass falls of jellyfish carcasses have been observed recently at the deep seafloor, the dense necrophage aggregations and rapid consumption rates typical for vertebrate carrion have not been documented. This has led to a paradigm of limited energy transfer to higher trophic levels at jelly falls relative to vertebrate organic falls. We show from baited camera deployments in the Norwegian deep sea that dense aggregations of deep-sea scavengers (more than 1000 animals at peak densities) can rapidly form at jellyfish baits and consume entire jellyfish carcasses in 2.5 h. We also show that scavenging rates on jellyfish are not significantly different from fish carrion of similar mass, and reveal that scavenging communities typical for the NE Atlantic bathyal zone, including the Atlantic hagfish, galatheid crabs, decapod shrimp and lyssianasid amphipods, consume both types of carcasses. These rapid jellyfish carrion consumption rates suggest that the contribution of gelatinous material to organic fluxes may be seriously underestimated in some regions, because jelly falls may disappear much more rapidly than previously thought. Our results also demonstrate that the energy contained in gelatinous carrion can be efficiently incorporated into large numbers of deep-sea scavengers and food webs, lessening the expected impacts (e.g. smothering of the seafloor) of enhanced jellyfish production on deep-sea ecosystems and pelagic–benthic coupling.
FIGURE 4 in Stephonyx arabiensis (Crustacea: Amphipoda: Lysianassoidea: Uristidae), a new deep-water scavenger species from the Indian Ocean, with a key to the genus Stephonyx
FIGURE 4: Stephonyx arabiensis sp.nov. X—Holotype female, 26.7mm; Y—Allotype: male, 24.9mm.
FIGURE 3 in Stephonyx arabiensis (Crustacea: Amphipoda: Lysianassoidea: Uristidae), a new deep-water scavenger species from the Indian Ocean, with a key to the genus Stephonyx
FIGURE 3: Stephonyx arabiensis sp.nov. X—Holotype female, 26.7mm; Y—Allotype: male, 24.9mm.
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.