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260 results for “Camouflage”
Data from: Relative advantages of dichromatic and trichromatic color vision in camouflage breaking
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Data from: Aposematism: balancing salience and camouflage
Aposematic signals are often characterized by high conspicuousness. Larger and brighter signals reinforce avoidance learning, distinguish defended from palatable prey and are more easily memorized by predators. Conspicuous signalling, however, has costs: encounter rates with naive, specialized or nutritionally stressed predators are likely to increase. It has been suggested that intermediate levels of aposematic conspicuousness can evolve to balance deterrence and detectability, especially for moderately defended species. The effectiveness of such signals, however, has not yet been experimentally tested under field conditions. We used dough caterpillar-like baits to test whether reduced levels of aposematic conspicuousness can have survival benefits when predated by wild birds in natural conditions. Our results suggest that, when controlling for the number and intensity of internal contrast boundaries (stripes), a reduced-conspicuousness aposematic pattern can have a survival advantage over more conspicuous signals, as well as cryptic colours. Furthermore, we find a survival benefit from the addition of internal contrast for both high and low levels of conspicuousness. This adds ecological validity to evolutionary models of aposematic saliency and the evolution of honest signalling.
Figure 19 from: Ardila-Camacho A, Machado RJP, Ohl M, Contreras-Ramos A (2024) A camouflaged diversity: taxonomic revision of the thorny lacewing subfamily Symphrasinae (Neuroptera, Rhachiberothidae). ZooKeys 1199: 1-409. https://doi.org/10.3897/zookeys.1199.115442
Figure 19 Anchieta remipes (Gerstaecker, 1888) A male terminalia, lateral B same, ventral.
Acreichthys tomentosus filefish juvenile camouflaged in algae
<p>Acreichthys tomentosus filefish juvenile camouflaged in algae</p>
Data from: Camouflage, detection and identification of moving targets
Nearly all research on camouflage has investigated its effectiveness for concealing stationary objects. However, animals have to move, and patterns that only work when the subject is static will heavily constrain behaviour. We investigated the effects of different camouflages on the three stages of predation—detection, identification and capture—in a computer-based task with humans. An initial experiment tested seven camouflage strategies on static stimuli. In line with previous literature, background-matching and disruptive patterns were found to be most successful. Experiment 2 showed that if stimuli move, an isolated moving object on a stationary background cannot avoid detection or capture regardless of the type of camouflage. Experiment 3 used an identification task and showed that while camouflage is unable to slow detection or capture, camouflaged targets are harder to identify than uncamouflaged targets when similar background objects are present. The specific details of the camouflage patterns have little impact on this effect. If one has to move, camouflage cannot impede detection; but if one is surrounded by similar targets (e.g. other animals in a herd, or moving background distractors), then camouflage can slow identification. Despite previous assumptions, motion does not entirely 'break' camouflage.
Multicentric Non-randomized Investigation of RESISTANT Camouflage Stent-system
ClinicalTrials.gov study NCT02011984. IPD Sharing: Not stated. Countries: 2. Publications: 0.
Efficacy of Camouflaged Syringe vs Conventional Syringe
ClinicalTrials.gov study NCT03566212. IPD Sharing: UNDECIDED. Countries: 1. Publications: 0.
Effects of Combination Therapy With Camouflage in the Repigmentation of Vitiligo
ClinicalTrials.gov study NCT03973073. IPD Sharing: NO. Countries: 1. Publications: 0.
Use of the Camouflage Syringe to Reduce Dental Anxiety and Fear in Children
ClinicalTrials.gov study NCT01398007. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Pectus Excavatum Camouflage
ClinicalTrials.gov study NCT05451108. IPD Sharing: NO. Countries: 1. Publications: 0.
The Effect of Using Camouflaged Dental Syringe
ClinicalTrials.gov study NCT06116994. IPD Sharing: NO. Countries: 1. Publications: 0.
Pectus Excavatum Camouflage (IT)
ClinicalTrials.gov study NCT05634070. IPD Sharing: NO. Countries: 1. Publications: 0.
Data from: Aposematism: balancing salience and camouflage
Open the record for dataset details and reuse information.
Data from: Camouflage, detection and identification of moving targets
Open the record for dataset details and reuse information.
A Multi University Research Initiative (MURI) Camouflage Project
A Multi University Research Initiative was funded to study the biological response to the dynamic, polarized light field in distinct water types. During June 2010, a campaign was undertaken in the coastal waters off Port Aransas, Texas to study the angular/temporal distribution of polarization in multiple environment types (eutrophic sediment laden coastal waters, oligotrophic off-shore), as well as the polarization-reflectance responses of several organisms. In addition to radiometric polarization measurements, water column IOPs, Rrs, benthic reflectance, and pigment concentration measurements were collected. Later campaigns expanded this research in the coastal waters off the Florida Keys.
Figure 4 in Female treehoppers camouflage behaviour is evidenced during oviposition on wild shrubs
Figure 4. Regression analysis between the size of Enchenopa brasiliensis egg cluster and size of Solanum lycocarpum thorn cluster associated with eggs. Statistical parameters: R2 = 0.4967, F = 15.22, and P <0.0001.
Figure 3 in Female treehoppers camouflage behaviour is evidenced during oviposition on wild shrubs
Figure 3. Location and frequency of Enchenopa brasiliensis egg clusters on the abaxial leaf midribs and petioles.
Figure 5 in Female treehoppers camouflage behaviour is evidenced during oviposition on wild shrubs
Figure 5. Eggs of Enchenopa brasiliensis covered by froth and laid next to abaxial leaf midrib thorns of Solanum lycocarpum.
Figure 2 in Female treehoppers camouflage behaviour is evidenced during oviposition on wild shrubs
Figure 2. Location and frequency of Solanum lycocarpum thorns on the base, middle, base/middle (simultaneously) and tip of the abaxial leaf midrib.
Figure 1 in Female treehoppers camouflage behaviour is evidenced during oviposition on wild shrubs
Figure 1. Adult female of Enchenopa brasiliensis next to a midrib thorn on a Solanum lycocarpum leaf.
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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.
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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.