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.
7
datasets available to search
ShareScore release 0.9.0
Dataset results
7 results for “fledging age”
Data from: Age and performance at fledging is a cause and consequence of juvenile mortality between life stages
Should they stay or should they leave? The age at which young transition between life stages, such as living in a nest versus leaving it, differs among species and the reasons why are unclear. We show that offspring of songbird species that leave the nest at a younger age have less-developed wings that cause poorer flight performance and greater mortality after fledging. Experimentally delayed fledging verified that older age and better developed wings provide benefits of reduced juvenile mortality. Young are differentially constrained in the age that they can stay in the nest and enjoy these fitness benefits because of differences among species in opposing predation costs while in the nest. This tension between mortality in versus outside of the nest influences offspring traits and performance and creates an unrecognized conflict between parents and offspring that determines the optimal age to fledge.
Data for: General cognitive performance declines with female age and is negatively related to fledging success in a wild bird
<p class="Affiliation"><span>Identifying the causes and fitness consequences of intraspecific variation in cognitive performance is fundamental to understand how cognition evolves. Selection may act on different cognitive traits separately or jointly as part of the general cognitive performance of the individual. To date, few studies have examined simultaneously whether individual cognitive performance covaries across different cognitive tasks, the relative importance of individual and social attributes in determining cognitive variation, and its fitness consequences in the wild. Here, we tested 38 wild southern pied babblers (</span><em><span>Turdoides bicolor</span></em><span>) on a cognitive test battery targeting associative learning, reversal learning and inhibitory control. We found that a single factor explained 59.5% of the variation in individual cognitive performance across tasks, suggestive of a general cognitive factor. General cognitive performance varied by age and sex; declining with age in females but not males. Older females also tended to produce a higher average number of fledglings per year compared to younger females. Analysing over 10 years of breeding data, we found that individuals with lower general cognitive performance produced more fledglings per year. Collectively, our findings support the existence of a trade-off between cognitive performance and reproductive success in a wild bird. </span></p>
Data for: General cognitive performance declines with female age and is negatively related to fledging success in a wild bird
Open the record for dataset details and reuse information.
Data from: Age and performance at fledging is a cause and consequence of juvenile mortality between life stages
Open the record for dataset details and reuse information.
Data from: Pilot study aging classification criteria for fledged juvenile white-winged doves
Nineteen eastern white-winged doves Zenaida asiatica asiatica were hatched and raised in captivity and used to develop an aging key that 1) quickly identifies juveniles based on a series of morphological features, and 2) provides estimates of juvenile age based on primary feather replacement. Birds were photographed every three days from 17 to 170 d posthatch to determine sequence of primary flight feather replacement; persistence of juvenile secondary coverts; and development of blue eye ring, black neck bars, and leg color. Eleven birds exhibited adult features such as absence of buffy-tipped primary coverts, blue eye-ring color, complete black neck bar, and red leg color at day 170 posthatch; two birds had these features as early as day 122. Replacement of primary feathers was variable among individuals beyond day 35 beginning with the third primary. Primary feather (primary notation P1–P10) replacement occurred gradually. By day 170, 2 of 17 birds had replaced all primary feathers, 3 birds had fully molted P9 but not P10, 8 birds had begun molting P9 but not P10, and 4 birds did not molt either P9 or P10. Increased variability in primary feather replacement occurred as juveniles progressed toward adulthood; this precluded accurate age estimates of older juveniles based exclusively on primary replacement. The present study provides a better understanding of the molting process that wildlife managers, biologists, and researchers can use at hunter check stations or during trapping and banding operations to separate age classes, which is necessary to establish hunting frameworks and to assess the population effects of harvest and other mortality factors. This pilot study provides the foundation needed for further investigations into developmental patterns of fledged juvenile white-winged doves and provides an aging key that represents an improvement over previous white-winged dove aging keys or reliance on aging keys of closely related species.
Data from: Pilot study aging classification criteria for fledged juvenile white-winged doves
Open the record for dataset details and reuse information.
Data from: Preparation for flight: pre-fledging exercise time is correlated with growth and fledging age in burrow-nesting seabirds
Open the record for dataset details and reuse information.
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.