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.
86
datasets available to search
ShareScore release 0.9.0
Dataset results
86 results for “two sexes”
Two-sex integrated population model reveals intersexual differences in life history strategies in Cooper's Hawks
<p>This site contains data files and model code for a dynamic nesting territory occupance model and 2-sex integrated population model for Cooper's hawks in Albuquerque, New Mexico, USA, 2011 - 2020.</p>
Figure 1. DNA extraction with two different protocols from different noninvasive samples. Lines 1, 3, 5 in Evaluation of methods for molecular sex-typing of three heron species from different DNA sources
Figure 1. DNA extraction with two different protocols from different noninvasive samples. Lines 1, 3, 5, and 7: DNA extraction with commercial kit; Lines 2, 4, 6, and 8: DNA extracted with modified standard protocol. Lines 1–2: eggshells (Grey Heron); lines 3–4: eggshell swabs (Grey Heron); lines 5–6: pin feathers (Purple Heron); lines 7–8: contour feathers (Great Egret); 9: negative control; M: molecular marker.
Figure. Location of the study area in the Czech Republic near Nové Losiny village (marked by star), delimitation of the studied meadows and placement of pan-traps transects within them. in Comparison of two methods for sampling orthopterans in grassland: differences in species representation and sex ratios
Figure. Location of the study area in the Czech Republic near Nové Losiny village (marked by star), delimitation of the studied meadows and placement of pan-traps transects within them.
Fig. 9 in Sex-ratio and body size plasticity in two cold-adapted ground beetles co-occurring in a periglacial area of the European Alps (Coleoptera: Carabidae)
Fig. 9 – Polynomial regression graph between elytra width of Nebria castanea females and the springtail abundance.
Fig. 7 in Sex-ratio and body size plasticity in two cold-adapted ground beetles co-occurring in a periglacial area of the European Alps (Coleoptera: Carabidae)
Fig. 7 – Boxplots of elytra width of Nebria castanea females as a function of landform. p-value of N. castanea morphometric analysis with Kruskal-Wallis test, that evaluate the presence of significant differences in body size between landforms with ice (active rock glacier) and without ice (fossil rock glacier and scree slope). Asterisk highlights significant values.
Fig. 3 in Sex-ratio and body size plasticity in two cold-adapted ground beetles co-occurring in a periglacial area of the European Alps (Coleoptera: Carabidae)
Fig. 3 – Boxplot of Nebria germarii body parameters as a function of sex (F=female; M=male). p-value of the Kruskal-Wallis tests for N. germarii body size as a function of sex. Asterisk highlights significant values.
Fig. 5 in Sex-ratio and body size plasticity in two cold-adapted ground beetles co-occurring in a periglacial area of the European Alps (Coleoptera: Carabidae)
Fig. 5 – PCA analysis graphs. Blue stars=active rock glacier specimens; Gold squares=fossil rock glacier specimens; Green dot=scree slope specimens.
Fig. 6 in Sex-ratio and body size plasticity in two cold-adapted ground beetles co-occurring in a periglacial area of the European Alps (Coleoptera: Carabidae)
Fig. 6 – Boxplot of head width of Nebria germarii females as a function of landform. p-value of N. germarii morphometric analysis with Kruskal-Wallis test, that evaluate the presence of significant differences in body size between landforms with ice (active rock glacier) and without ice (fossil rock glacier and scree slope). Asterisk highlights significant values.
Fig. 2 in Sex-ratio and body size plasticity in two cold-adapted ground beetles co-occurring in a periglacial area of the European Alps (Coleoptera: Carabidae)
Fig. 2 – Dorsal view of Nebria germarii and representation of the measured body parameters. For the meaning of the letters see the text (Photo by A. Carlin).
Fig. 4 in Sex-ratio and body size plasticity in two cold-adapted ground beetles co-occurring in a periglacial area of the European Alps (Coleoptera: Carabidae)
Fig. 4 – Boxplot of Nebria castanea body parameters as a function of sex (F=female; M=male). p-value of the Kruskal-Wallis tests for N. castanea body size as a function of sex. Asterisk highlights significant values.
Two-sex integrated population model reveals intersexual differences in life history strategies in Cooper’s Hawks
Open the record for dataset details and reuse information.
Fig. 8 in Sex-ratio and body size plasticity in two cold-adapted ground beetles co-occurring in a periglacial area of the European Alps (Coleoptera: Carabidae)
Fig. 8 – Linear regression graph between elytra width of Nebria castanea females and the soil pH.
Fig. 1 in Sex-ratio and body size plasticity in two cold-adapted ground beetles co-occurring in a periglacial area of the European Alps (Coleoptera: Carabidae)
Fig. 1 – Sampling plan: distribution of pitfall traps at the Lazaunkar site.
Keep It Up! 2.0: A Comparison of Two Online HIV Intervention Programs for Young Men Who Have Sex With Men
ClinicalTrials.gov study NCT01836445. IPD Sharing: Not stated. Countries: 1. Publications: 5.
Data for: The strength of sexual signals predicts same-sex pairing in two Coptotermes termites
Open the record for dataset details and reuse information.
Data from: Excitation-contraction coupling, cardiomyocyte electrophysiology, and transcriptome profiles in two HFpEF murine models: Etiology and sex-dependent differences
Open the record for dataset details and reuse information.
Data from: Influence of immunogenetics, sex, and body condition on the cutaneous microbial communities of two giant salamanders
Open the record for dataset details and reuse information.
Social bonds, social status and survival in wild baboons: a tale of two sexes
<p>People who are more socially integrated or have higher socio-economic status live longer. Recent studies in nonhuman primates show striking convergences with this human pattern: female primates with more social partners, stronger social bonds or higher dominance rank all lead longer lives. However, it remains unclear whether social environments also predict survival in male nonhuman primates, as it does in men. This gap persists because, in most primates, males disperse among social groups, resulting in many males who disappear with unknown fate and have unknown dates of birth. We present a Bayesian model to estimate the effects of time-varying social covariates on age-specific adult mortality in both sexes of wild baboons. We compare how the survival trajectories of both sexes are linked to social bonds and social status over the life. We find that, parallel to females, male baboons who are more strongly bonded to females have longer lifespans. However, males with higher dominance rank for their age appear to have shorter lifespans. This finding brings new understanding to the adaptive significance of heterosexual social bonds for male baboons: in addition to protecting the male's offspring from infanticide, these bonds may have direct benefits to males themselves.</p>
Data from: Sex roles, parental care and offspring growth in two contrasting coucal species
The decision to provide parental care is often associated with trade-offs, because resources allocated to parental care typically cannot be invested in self-maintenance or mating. In most animals, females provide more parental care than males, but the reason for this pattern is still debated in evolutionary ecology. To better understand sex differences in parental care and its consequences we need to study closely related species where the sexes differ in offspring care. We investigated parental care in relation to offspring growth in two closely related coucal species that fundamentally differ in sex roles and parental care, but live in the same food-rich habitat with a benign climate, and have a similar breeding phenology. Incubation patterns differed and uniparental male black coucals fed their offspring two times more often than female and male white-browed coucals combined. Also, white-browed coucals had more `off-times´ than male black coucals, during which they perched and preened. However, these differences in parental care were not reflected in offspring growth, likely because white-browed coucals fed their nestlings a larger proportion of frogs than insects. A food-rich habitat with a benign climate may be a necessary, but – perhaps unsurprisingly – is not a sufficient factor for the evolution of uniparental care. In combination with previous results (Goymann et al. (2015) J. Evol. Biol. 28, 1335-1353) these data suggest that white-browed coucals may cooperate in parental care because they lack opportunities to become polygamous rather than because both parents were needed to successfully raise all offspring. Our case study supports recent theory suggesting that permissive environmental conditions in combination with a particular life-history may induce sexual selection in females. A positive feed-back loop between sexual selection, body size, and adult sex-ratio may then stabilize reversed sex-roles in competition and parental care.
Data from: Social monogamy versus polyandry: ecological factors associated with sex-roles in two closely related birds within the same habitat
Why mainly males compete and females take a larger share in parental care remains an exciting question in evolutionary biology. Role-reversed species are of particular interest, because such exceptions′ help to test the rule. Using mating systems theory as a framework, we compared the reproductive ecology of the two most contrasting coucals with regard to sexual dimorphism and parental care: the black coucal with male-only care and the bi-parental white-browed coucal. Both species occur in the same lush habitat and face similar ecological conditions, but drastically differ in mating system and sexual dimorphism. Black coucals were migratory and occurred at high breeding densities. With females being obligatory polyandrous and almost twice as heavy as males, black coucals belong to the most extreme vertebrates with reversed sexual dimorphism. Higher variance in reproductive success in fiercely competing females suggests that sexual selection is stronger in females than males. In contrast, resident white-browed coucals bred at low densities and invariably in pairs. They were almost monomorphic and the variance in reproductive success was similar between the sexes. Black coucals were more likely to lose nests than white-browed coucals, probably facilitating female emancipation of parental care in black coucals. We propose that a combination of high food abundance, high population density, high degree of nest loss, and male bias in the adult sex ratio are ecological conditions that facilitate role reversal and polyandry in coucals and terrestrial vertebrates in general.
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.