Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
336
datasets available to search
ShareScore release 0.9.0
Dataset results
336 results for “sparrow”
Data from: Signatures of human-commensalism in the house sparrow genome
Open the record for dataset details and reuse information.
Enzyme gene expression in house sparrow populations
Open the record for dataset details and reuse information.
Data from: Genomics of rapid ecological divergence and parallel adaptation in four tidal marsh sparrows
Open the record for dataset details and reuse information.
Data from: Effects of population characteristics and structure on estimates of effective population size in a house sparrow metapopulation
Open the record for dataset details and reuse information.
Data from: Sex-specific additive genetic variances and correlations for fitness in a song sparrow (Melospiza melodia) population subject to natural immigration and inbreeding
Open the record for dataset details and reuse information.
Data from: New insights into New World biogeography: an integrated view from the phylogeny of blackbirds, cardinals, sparrows, tanagers, warblers, and allies
Open the record for dataset details and reuse information.
Genetic data disagree with described subspecies ranges for Seaside Sparrows on the Atlantic coast
Open the record for dataset details and reuse information.
Data from: Does urbanization cause stress in wild birds during development? insights from feather corticosterone levels in juvenile house sparrows (Passer domesticus)
Open the record for dataset details and reuse information.
Data from: Elevating perceived predation risk modifies the relationship between parental effort and song complexity in the song sparrow (Melospiza melodia)
Open the record for dataset details and reuse information.
Data from: Range expansion of house sparrows (Passer domesticus) in Kenya: evidence of genetic admixture and human-mediated dispersal
Open the record for dataset details and reuse information.
Data from: Social network structure in wintering golden-crowned sparrows is not correlated with kinship
Open the record for dataset details and reuse information.
Data from: Altered expression of pectoral myosin heavy chain isoforms corresponds to migration status in the white-crowned sparrow (Zonotrichia leucophrys gambelii)
Open the record for dataset details and reuse information.
Data from: Epigenetic potential and DNA methylation in an ongoing House Sparrow (Passer domesticus) range expansion
Open the record for dataset details and reuse information.
Spatial structure and dispersal dynamics in a house sparrow metapopulation
Open the record for dataset details and reuse information.
Data from: Hybrid speciation by sorting of parental incompatibilities in Italian sparrows
Open the record for dataset details and reuse information.
Data from: Female and male genetic effects on offspring paternity: additive genetic (co)variances in female extra-pair reproduction and male paternity success in song sparrows (Melospiza melodia)
Open the record for dataset details and reuse information.
Genetic admixture despite ecological segregation in a North African sparrow hybrid zone (Aves, Passeriformes, Passer domesticus x Passer hispaniolensis)
<p>Under different environmental conditions hybridization between the same species might result in different patterns of genetic admixture. Particularly, species pairs with large distribution ranges and long evolutionary history may have experienced several independent hybridization events over time in different zones of overlap. In birds, the diverse hybrid populations of the house sparrow (<i>Passer domesticus</i>) and the Spanish sparrow (<i>P. hispaniolensis</i>) provide a striking example. Throughout their range of sympatry, these two species do not regularly interbreed, however a stabilized hybrid form (<i>P. italiae</i>) exists on the Italian Peninsula and on several Mediterranean islands. The spatial distribution pattern on the Eurasian continent strongly contrasts the situation in North Africa, where house sparrows and Spanish sparrows occur in close vicinity of phenotypically intermediate populations across a broad mosaic hybrid zone. In this study, we investigate patterns of divergence and admixture among the two parental species, stabilized and non-stabilized hybrid populations in Italy and Algeria based on a mitochondrial marker, a sex-chromosomal marker and 12 microsatellite loci. In Algeria, despite strong spatial and temporal separation of urban early-breeding house sparrows and hybrids and rural late-breeding Spanish sparrows, we found strong genetic admixture of mitochondrial and nuclear markers across all study populations and phenotypes. That pattern of admixture in the North African hybrid zone is strikingly different from i) the Iberian area of sympatry where we observed only weak asymmetrical introgression of Spanish sparrow nuclear alleles into local house sparrow populations, and ii) from the very homogenous Italian sparrow population where the mitogenome of one parent (<i>P. domesticus</i>) and the Z-chromosomal marker of the other parent (<i>P. hispaniolensis</i>) is fixed. The North African sparrow hybrids provide a further example of enhanced hybridization along with recent urbanization and anthropogenic land-use changes in a mosaic landscape.</p>
Data from: Dyadic leader-follower dynamics change across situations in captive house sparrows
<p><span><span><span><span><span><span><span><span><span><span><span> Individuals can behave as either leaders or followers in many taxa of collectively-moving animals. Leaders initiate movements and may incur predation risks while followers are thought to be more risk-averse. As a group encounters different challenges and ecological situations, individuals in the group may change their social role. We investigated leader and follower roles using dyads of captive house sparrow (<i>Passer domesticus</i>) during both exploration of a novel environment and a simulation of predator attack. During the exploration of a novel environment individuals behaved consistently either as leaders or followers. However, in the simulated attack tests, individuals in the dyads switched their roles, with 'followers' leading the escape flights and 'leaders' following them. Our study provides evidence of (i) consistent differences between individuals in behavior during social escape and (ii) a relationship between social roles across different situations. We suggest that such relationship hinges on individual risk-taking tendencies, which manifest through different social roles across different ecological situations. We further speculate that risk-taking individuals might gain benefits by following risk-averse individuals during an escape flight. </span></span></span></span></span></span></span></span></span></span></span></p>
Data for: Immigration counter-acts local micro-evolution of a major fitness component: migration-selection balance in free-living song sparrows
<p>Ongoing adaptive evolution, and resulting 'evolutionary rescue' of declining populations, requires additive genetic variation in fitness. Such variation can be increased by gene flow resulting from immigration, potentially facilitating evolution. But, gene flow could in fact constrain rather than facilitate local adaptive evolution if immigrants have low additive genetic values for local fitness. Local migration-selection balance and micro-evolutionary stasis could then result. However, key quantitative genetic effects of natural immigration, comprising the degrees to which gene flow increases the total local additive genetic variance yet counter-acts local adaptive evolutionary change, have not been explicitly quantified in wild populations. Key implications of gene flow for population and evolutionary dynamics consequently remain unclear. Our quantitative genetic analyses of long-term data from free-living song sparrows (<i>Melospiza melodia</i>) show that mean breeding value for local juvenile survival to adulthood, a major component of fitness, increased across cohorts more than expected solely due to drift. Such micro-evolutionary change should be expected given non-zero additive genetic variance and consistent directional selection. However, this evolutionary increase was counter-acted by negative additive genetic effects of recent immigrants, which increased total additive genetic variance but prevented a net directional evolutionary increase in total additive genetic value. These analyses imply an approximate quantitative genetic migration-selection balance in a major fitness component, and hence demonstrate a key mechanism by which substantial additive genetic variation can be maintained yet decoupled from local adaptive evolutionary change.</p>
Data from: Genetic diversity and population structure in contemporary house sparrow populations along an urbanization gradient.
House sparrow (Passer domesticus) populations have suffered major declines in urban as well as rural areas, while remaining relatively stable in suburban ones. Yet, to date no exhaustive attempt has been made to examine how, and to what extent, spatial variation in population demography is reflected in genetic population structuring along contemporary urbanization gradients. Here we use putatively neutral microsatellite loci to study if and how genetic variation can be partitioned in a hierarchical way among different urbanization classes. Principal coordinate analyses did not support the hypothesis that urban/suburban and rural populations comprise two distinct genetic clusters. Comparison of FST values at different hierarchical scales revealed drift as an important force of population differentiation. Redundancy analyses revealed that genetic structure was strongly affected by both spatial variation and level of urbanization. The results shown here can be used as baseline information for future genetic monitoring programmes and provide additional insights into contemporary house sparrow dynamics along urbanization gradients.
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.