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.
824
datasets available to search
ShareScore release 0.9.0
Dataset results
824 results for “Discrimination”
Data from: Inaccurate color discrimination by pollinators promotes evolution of discrete color polymorphism in food-deceptive flowers
Many plant species employing food-deceptive pollination strategy show discrete or continuous floral polymorphism within their populations. Previous studies have suggested that negative frequency-dependent selection (NFDS) caused by learning behavior of pollinators was responsible for maintenance of floral polymorphism. However, NFDS alone does not explain why and when discrete or continuous polymorphism evolves. In this study, we use an evolutionary simulation model to propose that inaccurate discrimination of flower colors by pollinators results in evolution of discrete flower color polymorphism. Simulations showed that associative learning based on inaccurate discrimination in pollinators caused disruptive selection of flower colors. The degree of inaccuracy determined the number of discrete flower colors that evolved. Our results suggest that animal behavior based on inaccurate discrimination may be a general cause of disruptive selection that promotes discrete trait polymorphism.
Data from: Selection for relative brain size affects context-dependent male preferences, but not discrimination, of female body size in guppies
Understanding what drives animal decisions is fundamental in evolutionary biology, and mate choice decisions are arguably some of the most important decisions in any individual's life. As cognitive ability can impact decision-making, elucidating the link between mate choice and cognitive ability is necessary to fully understand mate choice. To experimentally study this link, we used guppies (Poecilia reticulata) artificially selected for divergence in relative brain size and with previously demonstrated differences in cognitive ability. A previous test in our female guppy selection lines demonstrated the impact of brain size and cognitive ability on information processing during female mate choice decisions. Here we evaluated the effect of brain size and cognitive ability on male mate choice decisions. Specifically, we investigated the preferences of large-brained, small-brained, and non-selected guppy males for female body size, a key indicator of female fecundity in this species. For this, male preferences were quantified in dichotomous choice tests when presented to dyads of females with small, medium and large body size differences. All types of males showed preference for larger females but no effect of brain size was found in the ability to discriminate between differently sized females. However, we found that non-selected and large-brained males, but not small-brained males, showed context-dependent preferences for larger females depending on the difference in female size. Our results have two important implications. First, they provide further evidence that male mate choice occurs also in a species in which secondary sexual ornamentation occurs only in males. Second, they show that brain size and cognitive ability have important effects on individual variation in mating preferences and sexually selected traits.
FIGURE 2 in Using the size independent discriminant analysis to distinguish the species of Myliobatis Cuvier (Batoidea: Myliobatidae) from Brazil
FIGURE 2: Histogram of discriminant scores of M. freminvillii and M. goodei.
Tannins discrimination
<p>Supplementary data</p>
Figure 6 from: Gere J, Kowiyou Y, Daru B, Mankga L, Maurin O, van der Bank M (2013) Incorporating trnH-psbA to the core DNA barcodes improves significantly species discrimination within southern African Combretaceae. ZooKeys 365: 129-147. https://doi.org/10.3897/zookeys.365.5728
Figure 6 - Gene performance based on monophyly criteria. False = proportion of non-monophyletic species; True = proportion of monophyletic species.
Figure 3 from: Gere J, Kowiyou Y, Daru B, Mankga L, Maurin O, van der Bank M (2013) Incorporating trnH-psbA to the core DNA barcodes improves significantly species discrimination within southern African Combretaceae. ZooKeys 365: 129-147. https://doi.org/10.3897/zookeys.365.5728
Figure 3 - Comparisons of the distribution range of inter- versus intraspecific distances using boxplot a indicates comparison of single barcode gene regions b indicates the results of gene combinations.
Figure 1 from: Gere J, Kowiyou Y, Daru B, Mankga L, Maurin O, van der Bank M (2013) Incorporating trnH-psbA to the core DNA barcodes improves significantly species discrimination within southern African Combretaceae. ZooKeys 365: 129-147. https://doi.org/10.3897/zookeys.365.5728
Figure 1 - Selected inflorescences of seven Combretum species indicating closely related species evaluated based upon floral characters. A Combretum paniculatum B Combretum microphyllum C Combretum platypetalum D Combretum hereroense E Combretum apiculatum F Combretum molle G Combretum kraussii. All photographs by O. Maurin.
Figure 4 from: Gere J, Kowiyou Y, Daru B, Mankga L, Maurin O, van der Bank M (2013) Incorporating trnH-psbA to the core DNA barcodes improves significantly species discrimination within southern African Combretaceae. ZooKeys 365: 129-147. https://doi.org/10.3897/zookeys.365.5728
Figure 4 - Relationships between inter- and intraspecific distances indicating barcoding gap for all regions tested.
Figure 2 from: Gere J, Kowiyou Y, Daru B, Mankga L, Maurin O, van der Bank M (2013) Incorporating trnH-psbA to the core DNA barcodes improves significantly species discrimination within southern African Combretaceae. ZooKeys 365: 129-147. https://doi.org/10.3897/zookeys.365.5728
Figure 2 - Selectedmature dry four-winged fruits of closely related species of genus Combretum. A Combretum mkuzense B Combretum microphyllum C Combretum englerii D Combretum apiculatum E Combretum moggii F Combretum albopunctatum G Combretum collinum. All photographs by O. Maurin.
Figure 4 from: Barour C, Baylac M (2016) Geometric morphometric discrimination of the three African honeybee subspecies Apis mellifera intermissa, A. m. sahariensis and A. m. capensis (Hymenoptera, Apidae): Fore wing and hind wing landmark configurations. Journal of Hymenoptera Research 52: 61-70. https://doi.org/10.3897/jhr.52.8787
Figure 4 - Extreme shape differences between Apis mellifera intermissa, Apis mellifera sahariensis and Apis mellifera capensis along the first two canonical variates (Fig. 3A, B). A and B fore wing shape differences along the first and second canonical variate, respectively. C and D hind wing shape differences along the first and second canonical variate, respectively (scale factor ×3 and ×2 respectively). Grey lines depict the shape associated with the negative values and black lines the shape associated with the positive values of the respective canonical variate.
Figure 1 from: Barour C, Baylac M (2016) Geometric morphometric discrimination of the three African honeybee subspecies Apis mellifera intermissa, A. m. sahariensis and A. m. capensis (Hymenoptera, Apidae): Fore wing and hind wing landmark configurations. Journal of Hymenoptera Research 52: 61-70. https://doi.org/10.3897/jhr.52.8787
Figure 1 - Location of the landmarks digitized on a right fore and hind wing of Apis mellifera workers (drawn to the same scale). MR: marginal cell, CC: cubital cell, MC: median cell, SMC: sub-median cell, and RC: radial cell.
Figure 3 from: Barour C, Baylac M (2016) Geometric morphometric discrimination of the three African honeybee subspecies Apis mellifera intermissa, A. m. sahariensis and A. m. capensis (Hymenoptera, Apidae): Fore wing and hind wing landmark configurations. Journal of Hymenoptera Research 52: 61-70. https://doi.org/10.3897/jhr.52.8787
Figure 3 - Shape variability among Apis mellifera intermissa, Apis mellifera sahariensis and Apis mellifera capensis: first two canonical variates. A fore wing shape B hind wing shape.
Customer Discrimination in the Fast Food Market
<p>This project studies customer discrimination against fictive male and female food truck owners with Arabic names on a Swedish University campus using a web-based experiment. Students were asked to participate in a market survey and state if they think it is a good idea to have a food truck establishment on the campus. Four names—one male Swede, one female Swede, one male Arab, and one female Arab—were randomly assigned to the food truck. We found no evidence of customer discrimination against food truck owners with Arabic names. The respondents were slightly more positive to a food truck establishment run by an Arabic male than by a Swedish male. Our results are representative in an environment with young and highly educated customers.</p>
Supplementary material 4 from: Campana L, Cruz LR, Paresque R, Fagundes V (2022) Penile shape discriminates two cryptic species of Akodon Meyen, 1833 (Mammalia, Rodentia, Cricetidae) from eastern Brazil. ZooKeys 1134: 1-22. https://doi.org/10.3897/zookeys.1134.89587
Photographs of glans penis of both species and hybrids
Supplementary material 2 from: Campana L, Cruz LR, Paresque R, Fagundes V (2022) Penile shape discriminates two cryptic species of Akodon Meyen, 1833 (Mammalia, Rodentia, Cricetidae) from eastern Brazil. ZooKeys 1134: 1-22. https://doi.org/10.3897/zookeys.1134.89587
Frequency of characters
Supplementary material 1 from: Campana L, Cruz LR, Paresque R, Fagundes V (2022) Penile shape discriminates two cryptic species of Akodon Meyen, 1833 (Mammalia, Rodentia, Cricetidae) from eastern Brazil. ZooKeys 1134: 1-22. https://doi.org/10.3897/zookeys.1134.89587
Gazetteer of collecting localities and specimens examined
Distinct cerebellar regions for body motion discrimination
<p>Visual processing of human movements is critical for adaptive social behavior. Cerebellar activations have been observed during biological motion discrimination in prior neuroimaging studies, and cerebellar lesions may be detrimental for this task. However, whether the cerebellum plays a causal role in biological motion discrimination has never been tested. Here, we addressed this issue in three different experiments by interfering with the posterior cerebellar lobe using transcranial magnetic stimulation (TMS) during a biological discrimination task. In Experiments 1 and 2, we found that TMS delivered at onset of the visual stimuli over the vermis (vermal lobule VI), but not over the left cerebellar hemisphere (left lobule VI/Crus I), interfered with participants’ ability to distinguish biological from scrambled motion compared to stimulation of a control site (vertex). Interestingly, when stimulation was delivered at a later time point (300 ms after stimulus onset), participants performed worse when TMS was delivered over the left cerebellar hemisphere compared to the vermis and the vertex (Experiment 3). Our data show that the posterior cerebellum is causally involved in biological motion discrimination and suggest that different sectors of the posterior cerebellar lobe may contribute to the task at different time points.</p>
A chemiresistive-potentiometric multivariate sensor for discriminative gas detection
<p>The data set contains source data for all figures in this article and supplementary materials.</p>
Figure 1. A in DESCRIPTION OF THE LARVAE OF CRICOTOPUS FESTIVELLUS (KIEFFER 1906) AND CRICOTOPUS DIVERSUS (BOESEL 1983) WITH KEYS TO DISCRIMINATION OF LARVAL, PUPAL AND ADULT STAGES (DIPTERA: CHIRONOMIDAE) Abstract
Figure 1. A) Baismans Run (USA) where larvae of Cricotopus diversus were collected. B) Lake Målsjøen (Norway) where larvae of Cricotopus festivellus were collected.
Antigen discrimination by T cells relies on size-constrained microvillar contacts
<p>Raw imaging data for publication with the same name. </p>
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.