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30 results for “colour ornaments”
Spectral data for analysis: Full spectra colouration and condition-dependent signalling in a skin-based carotenoid sexual ornament
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Data from: Intrasexual selection favours an immune-correlated colour ornament in a dragonfly
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Data from: Fecundity selection on ornamental plumage colour differs between ages and sexes and varies over small spatial scales
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Data from: Ornament size and colour as alternative strategies for effective communication in gliding lizards
Sexual ornamentation needs to be conspicuous to be effective in attracting potential mates and defending territories and indeed, a multitude of ways exists to achieve this. Two principal mechanisms for increasing conspicuousness are to increase the ornament's colour or brightness contrast against the background and to increase the size of the ornament. We assessed the relationship between the colour and size of the dewlap, a large extendible throat-fan, across a range of species of gliding lizards (Agamidae; genus Draco) from Malaysia and the Philippines. We found a negative relationship across species between colour contrast against the background and dewlap size in males, but not in females, suggesting that males of different species use increasing colour contrast and dewlap size as alternative strategies for effective communication. Male dewlap size also increases with increasing sexual size dimorphism, and dewlap colour and brightness contrast increase with increasing sexual dichromatism in colour and brightness, respectively, suggesting that sexual selection may act on both dewlap size and colour. We further found evidence that relative predation intensity, as measured from predator attacks on models placed in the field, may play a role in the choice of strategy (high chromatic contrast or large dewlap area) a species employs. More broadly, these results highlight that each component in a signal (such as colour or size) may be influenced by different selection pressures and that by assessing components individually, we can gain a greater understanding of the evolution of signal diversity.
fig. 13 in Any colour you like: new records of ornamental livebearers (Poeciliidae: Cyprinodontiformes) from freshwaters of Argentina.
fig. 13 Xiphophorus hellerii 'red tuxedo', adult male from lot CI-FML 7807.
fig. 18 in Any colour you like: new records of ornamental livebearers (Poeciliidae: Cyprinodontiformes) from freshwaters of Argentina.
fig. 18 Males of Poecilia reticulata from lot CI-FML 7808.
figs. 16, 17 in Any colour you like: new records of ornamental livebearers (Poeciliidae: Cyprinodontiformes) from freshwaters of Argentina.
figs. 16, 17 Males (left) and pair (right) of Poecilia reticulata from Tucumán.
figs. 6, 7 in Any colour you like: new records of ornamental livebearers (Poeciliidae: Cyprinodontiformes) from freshwaters of Argentina.
figs. 6, 7 Phenotypes of introduced Xiphophorus hellerii from Indonesia (left) and Morocco (above).
Data from: Ornament size and colour as alternative strategies for effective communication in gliding lizards
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Data from: Climate shapes the geographic distribution and introgressive spread of colour ornamentation in common wall lizards
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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.