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290 results for “sea turtles”
A seven-year record of fluctuating core body temperatures of nesting leatherback and hawksbill sea turtles
<p>Sea turtles experience considerable changes in water temperatures during migrations and seasonal movements that will influence their body temperatures. Nothing is known of how sea turtles' core body temperatures vary from season to season at nesting sites. Over seven consecutive seasons we measured the surface temperatures of freshly laid eggs as proxies of core body temperatures of sea turtles using non-contact infrared thermometers. We estimated the temperatures of two species that have contrasting migration patterns - leatherbacks, which are adapted to migrate between tropical breeding sites to cold temperate waters, and hawksbills that are confined to the tropics and sub-tropics. We found considerable year-to-year variations in temperatures in both species (means ranging from 30.4°C to 31.5°C in leatherbacks), hawksbills the more so (28.1°C to 30.3°C). These differences will likely be modified by both natural seasonal variations and anthropogenic changes in global ocean temperatures and resulting changes in currents and water temperatures local to nesting beaches. These previously unrecognised fluctuations in body temperatures of nesting turtles have, it is argued, potential for predicting environmental tolerances, reproductive success, and nest site selection by sea turtles, and contribute to predictions of which rookeries may remain viable or not during future ocean warming.</p>
Supporting information for: Integrating morphological, molecular, and cytogenetic data for F2 sea turtle hybrids diagnosis revealed balanced chromosomal sets
<p><span>Hybridization could be considered part of the evolutionary history of many species. The hybridization among sea turtle species on the Brazilian coast is atypical and occurs where nesting areas and reproductive seasons overlap. Integrated analysis of morphology and genetics is still scarce, and there is no evidence of the parental chromosome set distribution in sea turtle interspecific hybrids. In this study, chromosome markers previously established for pure sea turtle species were combined with morphological and molecular analyses aiming to recognize genetic composition and chromosome sets in possible interspecific hybrids initially identified by mixed morphology. The data showed that one hybrid could be an F<sub>2</sub> individual among <em>Caretta caretta </em>× <em>Eretmochelys</em> <em>imbricata</em> × <em>Chelonia</em> <em>mydas</em>, and another is resulting from backcross between <em>C. caretta </em>× <em>Lepidochelys</em> <em>olivacea</em>. Native alleles of different parental lineages were reported in the hybrids, and, despite this, it was verified that the hybrid chromosome sets were still balanced. Thus, how sea turtle hybridism can affect genetic features in the long term is a concern, as the implications of the crossing-over in hybrid chromosomal sets and the effects on genetic function are still unpredictable. </span></p>
A seven-year record of fluctuating core body temperatures of nesting leatherback and hawksbill sea turtles
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Genotype data not consistent with clonal transmission of sea turtle fibropapillomatosis or goldfish schwannoma
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Strandings of marine mammals, sea turtles and seabirds along central Santa Catarina coast, Brazil, from 2015 to 2018.
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Data from: A convolutional neural network for detecting sea turtles in drone imagery
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Strandings of marine mammals, sea turtles and seabirds along the northern Santa Catarina coast, Brazil, from 2015 to 2018.
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Data from: Hidden demographic impacts of fishing and environmental drivers of fecundity in a sea turtle population
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Camera traps: A novel method to estimate numbers of nesting sea turtles
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Supporting information for: Integrating morphological, molecular, and cytogenetic data for F2 sea turtle hybrids diagnosis revealed balanced chromosomal sets
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Data from: Behaviour-specific spatiotemporal patterns of habitat use by sea turtles revealed using biologging and supervised machine learning
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Strandings of marine mammals, sea turtles and seabirds along the southern São Paulo coast, Brazil, from 2015 to 2018.
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Data from: swimming through sand: using accelerometers to observe the cryptic, pre-emergence life-stage of sea turtle hatchlings
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Green and hawksbill sea turtle nesting in the Gulf of Guinea: A 9-year survey
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Leatherback sea turtle (<em>Dermochelys coriacea</em>) presence locations used to generate distribution models in the Northwest Atlantic Ocean
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Data from: Local adaptation may help mitigate feminisation of sea turtle populations globally
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Strandings of marine mammals, sea turtles and seabirds along the central-north São Paulo coast, Brazil, from 2015 to 2018.
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Data from: Empirical evidence for the extent of spatial and temporal thermal variation on sea turtle nesting beaches
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Data from: Global decline in the size of sea turtles
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Latitudinal cline in the foraging dichotomy of loggerhead sea turtles reveals the importance of East China Sea for priority conservation
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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.