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350 results for “Parental care”
Data from: Parental care buffers against effects of ambient temperature on offspring performance in an insect
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Data from: Selfish mothers indeed! Resource-dependent conflict over extended parental care in free-ranging dogs
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Data from: Clever mothers balance time and effort in parental care: a study on free-ranging dogs
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Data from: Corticosterone predicts foraging behavior and parental care in macaroni penguins
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Data from: Post-hatching parental care masks the effects of egg size on offspring fitness: a removal experiment on burying beetles
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Data from: A functional trade-off between trophic adaptation and parental care predicts sexual dimorphism in cichlid fish
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Data from: Variation in growth drives the duration of parental care: a test of Ydenberg's model
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Tactic-specific antimicrobial activity suggests a parental care function for accessory glands in a marine toadfish
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Data from: Male-only care and cuckoldry in black coucals: does parenting hamper sex life?
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Data from: Adaptation to monogamy influences parental care but not mating behavior in the burying beetle, Nicrophorus vespilloides
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Data from: Sexual selection of male parental care in giant water bugs
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Data from: Parental care masks a density-dependent shift from cooperation to competition among burying beetle larvae
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Data from: Reversed brain size sexual dimorphism accompanies loss of parental care in white sticklebacks
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Helpers compensate for age-related declines in parental care and offspring survival in a cooperatively breeding bird
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Data from: Induced parental care in a poison frog: a tadpole cross-fostering experiment
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Data from: Offspring growth and mobility in response to variation in parental care: a comparison between populations
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Data from: Evolution of elaborate parental care: phenotypic and genetic correlations between parent and offspring traits
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Sex‐specific effects of predation risk on parental care in a sexually dichromatic Neotropical songbird
<p>Predation risk affects a broad range of bird behaviours, especially parental care. The adaptive behavioural changes presented by both parents, however, may differ according to different levels of predation risk suffered by each sex. This is especially prominent in sexually dichromatic species, where one of the sexes is more visually conspicuous and hence vulnerable to increased nest predation risk during nest visits. Here, we experimentally investigated how predation risk affects the parental behaviour of a sexually dichromatic Neotropical passerine, the blue-black grassquit (Volatinia jacarina). We used playbacks of known predators and non-predatorial control sympatric species near nesting pairs in the field. Results show that grassquits modify their behaviour according to predation risk and that this behavioural response is sexdependent. Males decrease their nest visit times, become more discreet when moving towards the nest, and stop performing sexual displays after leaving the nest. In contrast, females tend to decrease latency to visit the nest and increase the duration of brooding bouts. These different sex responses reduce nest visual and acoustic detectability, since conspicuous males are readily spotted on nests and cryptic females camouflage nestlings and suppress begging calls. Although these behavioural changes might reduce predation risk, there might be a cost of reduced food load to nestlings and increased brood starvation risk. These changes in nesting activities illustrate the behavioural adaptability of passerines to ensure offspring survival in tropical high predation risk environments.</p>
Data from: Sex differences in parental care: gametic investment, sexual selection and social environment
Male and female parents often provide different type and amount of care to their offspring. Three major drivers have been proposed to explain parental sex roles: (i) differential gametic investment by males and females that precipitates into sex difference in care, (ii) different intensity of sexual selection acting on males and females, and (iii) biased social environment that facilitates the more common sex to provide more care. Here we provide the most comprehensive assessment of these hypotheses using detailed parental care data from 792 bird species covering 126 families. We found no evidence for the gametic investment hypothesis: neither gamete sizes nor gamete production by males relative to females was related to sex difference in parental care. However, sexual selection correlated with parental sex roles, because the male share in care relative to female decreased with both extra-pair paternity and frequency of polygamy. Parental sex roles were also related to social environment, because male parental care increased with male-biased adult sex ratios. Taken together, our results are consistent with recent theories suggesting that gametic investment is not tied to parental sex roles, and highlight the importance of both sexual selection and adult sex ratios in influencing parental sex roles.
Data from: Aposematism in the burying beetle? Dual function of anal fluid in parental care and chemical defense
Burying beetles (Nicrophorus vespilloides) bear distinctive and variable orange-black patterning on their elytra and produce an anal exudate from their abdomen when threatened. During breeding, the anal exudates contribute to the antimicrobial defense of the breeding resource. We investigated whether the anal exudates also provide a responsive chemical defense, which is advertised to potential avian predators by the beetle's orange and black elytral markings. We found that that the orange-black elytral markings of the burying beetle are highly conspicuous for avian predators against range of backgrounds, by using computer simulations. Using bioassays with wood ants, we also showed that the burying beetle's anal exudates are aversive to potential predators. From these results, and other evidence in the literature, we conclude that the evidence for aposematism in the burying beetle is as strong as the evidence for many other classically aposematic species, such as defended Hymenopterans, ladybirds, or poisonous frogs. Nevertheless, we also report unexpectedly high levels of individual variation in coloration and chemical defenses, as well as sex differences. We suggest that this variation might be partly due to conflicting selection pressures, particularly on the dual function of the exudates, and partly to nutritional differences in the developmental environment. The ecology of the burying beetles (Nicrophorus spp.) differs markedly from better-studied aposematic insects. This genus thus offers new potential for understanding the evolution of aposematism in general.
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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.