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.
388
datasets available to search
ShareScore release 0.9.0
Dataset results
388 results for “morphing”
Data from: Poison frog color morphs express assortative mate preferences in allopatry but not sympatry
The concurrent divergence of mating traits and preferences is necessary for the evolution of reproductive isolation via sexual selection, and such coevolution has been demonstrated in diverse lineages. However, the extent to which assortative mate preferences are sufficient to drive reproductive isolation in nature is less clear. Natural contact zones between lineages divergent in traits and preferences provide exceptional opportunities for testing the predicted evolutionary consequences of such divergence. The strawberry poison frog (Oophaga pumilio) displays extreme color polymorphism in and around the young Bocas del Toro archipelago. In a transition zone between red and blue allopatric lineages, we asked whether female preferences diverged along with coloration, and whether any divergent preferences persist in a zone of sympatry. When choosing among red, blue and phenotypically intermediate males, females from monomorphic red and monomorphic blue populations both expressed assortative preferences. However, red, blue, and intermediate females from the contact zone all preferred red males, suggesting that divergent preferences may be insufficient to effect behavioral isolation. Our results highlight the complexity of behavioral isolation, and the need for studies that can reveal the circumstances under which divergent preferences do and do not contribute to speciation.
Data from: Serotonin differentially affects morph-specific behavior in divergent populations of a horned beetle
Associations between animal weapons and corresponding aggressive behaviors are among the most characteristic features of species, yet at the same time their co-expression is itself often strongly dependent on context, such as male condition or population ecology. Yet the mechanisms that modulate associations between aggression, morphology, and biological context remain poorly understood. The biogenic amine serotonin has been shown to regulate a wide range of aggressive and morph-specific behaviors in diverse insect species. However, the extent to which serotonin may coordinate the expression of behavior with morphology across biological contexts remains unclear. In this study, we pharmacologically increased serotonin biosynthesis in males of the polyphenic beetle, Onthophagus taurus, and assessed how this manipulation affects both aggressive and non-aggressive behaviors in alternative fighter and sneaker morphs, as well as in males derived from rapidly diverging populations characterized by disparate levels of competition for mates. We find (i) that enhancing serotonin biosynthesis increases most measures of aggressive behaviors, but influences only a subset of non-aggressive behaviors, (ii) that similar serotonin-mediated behavioral changes manifest in both morphs within populations more often than just a single morph, and (iii) that males derived from populations subject to disparate levels of competition for mates have diverged in their behavioral responsiveness to serotonin up-regulation. Collectively, our study suggests that serotonin signaling plays a critical role in the regulation of male behavior and its evolution, including in the context of rapid, short term population divergence.
Data from: Pollen competition between morphs in a pollen-color dimorphic herb and the loss of phenotypic polymorphism within populations
Flower color polymorphism is relatively uncommon in natural flowering plants, suggesting that maintenance of different color morphs within populations is difficult. To address the selective mechanisms shaping pollen-color dimorphism, pollinator preferences and reproductive performance were studied over three years in Epimedium pubescens in which some populations had plants with either green or yellow pollen (and anthers). Visitation rate and pollen removal and receipt by the bee pollinator (Andrena emeishanica) did not differ between the two color morphs. Compared to the green morph, siring success of the yellow morph's pollen was lower, but that of mixtures of pollen from green and yellow morphs was lowest. This difference, corresponding to in and ex vivo experiments on pollen performance, indicated that pollen germination, rather than tube growth, of the green morph was higher than that of the yellow morph and was seriously constrained in both morphs if a pollen competitor was present. A rare green morph may invade a yellow-morph population, but the co-existence of pollen color variants is complicated by the reduced siring success of mixed pollinations. Potential pollen competition between morphs may have discouraged the maintenance of multiple phenotypes within populations, a cryptic mechanism of competitive exclusion.
Doll-Human Morph Stimuli
<p>This stimulus set contains images of human faces (from the Radboud Faces Database; Langner et al., 2010) morphed with dolls. Morph continua are provided at 10% intervals (11 total images per morph) and 2% intervals (50 total images per morph). 19 total morphs are provided in the stimulus set, comprising 4 female faces with neutral expressions (labelled FN), 6 female faces with happy expressions (FH), 6 male faces with neutral expressions (MN) and 3 male faces with happy expressions (MH). All faces are Caucasian, and are photographed as a frontal view, with external features covered by an oval frame.</p> <p>For more information about this stimulus set, please contact n.bowling@gold.ac.uk</p> <p>Radboud Faces Database:</p> <p>Langner, O., Dotsch, R., Bijlstra, G., Wigboldus, D. H. J., Hawk, S. T., & van Knippenberg, A. (2010). Presentation and validation of the Radboud Faces Database. <em>Cognition & Emotion, 24</em>(8), 1377-1388.</p>
Computer Generated-Human Morph Stimuli
<p>This stimulus set contains images of human faces (from the Radboud Faces Database; Langner et al., 2010) morphed with computer-generated versions of the same faces, made with FaceGen Modeller (Singular Inversions, Toronto, Canada). Morph continua are provided at 10% intervals (11 total images per morph) and 2% intervals (50 total images per morph). 16 total morphs are provided in the stimulus set, comprising 4 female faces with neutral expressions (labelled FN), 4 female faces with happy expressions (FH), 4 male faces with neutral expressions (MN) and 4 male faces with happy expressions (MH). All faces are Caucasian, and are photographed as a frontal view, with external features covered by an oval frame.</p> <p>For more information about this stimulus set, please contact n.bowling@gold.ac.uk</p> <p>Radboud Faces Database:</p> <p>Langner, O., Dotsch, R., Bijlstra, G., Wigboldus, D. H. J., Hawk, S. T., & van Knippenberg, A. (2010). Presentation and validation of the Radboud Faces Database. <em>Cognition & Emotion, 24</em>(8), 1377-1388.</p>
Mouse CA1 Calcium Imaging and Behavioural Dataset in 3x3 Geometric Morph Paradigm
<p>The following dataset was collected by Dr. J. Quinn Lee, Dr. Alexandra T. Keinath, and Erica Cianfarano in the laboratory of Dr. Mark P. Brandon. All methods and details are described in the original research article reporting these data published in <em>Neuron</em>: Lee, Keinath, Cianfarano, and Brandon (2025) Identifying representational structure in CA1 to benchmark theoretical models of cognitive mapping. Any use of the following dataset must cite the original publication in Neuron. The code base to reproduce all analyses and figures can be found at: <a href="https://github.com/jquinnlee/georepca1">https://github.com/jquinnlee/georepca1</a></p> <p dir="auto">The dataset (Python joblib files or MATLAB .mat files in the zipped "data" folder) are given names of animal IDs from the original study that can be downloaded from Zenodo and contain the following fields in each file:</p> <p dir="auto">SFPs: spatial footprints (also known as ROI) for every registered cell, centered over each cell. Shape - Dimx, dimy, number of SFPs (ROIs), number of days. If cell is not registered it will be nan along dimx and dimy for a given day.</p> <p dir="auto">blocked: location of blocked (occluded) partitions in 3x3 design of environment. Location of partitions are shown in paper, but are organized in the following way – [[0, 1, 2], [3, 4, 5], [6, 7, 8]]. If no partitions are blocked, value is -1.</p> <p dir="auto">centroids: centroid of spatial footprint. Shape – number of cells, x-y location, number of days.</p> <p dir="auto">envs: environment shape identified with string name</p> <p dir="auto">maps: three types of maps generated from the dataset. “sampling” is the occupancy of animal in each spatial bin, shape – xbins, ybins, number of days. “smoothed” is the event rate map smoothed with 2.5 cm gaussian kernel, shape – xbins, ybins, number of cells, number of days. “unsmoothed” is the same event rate map data without smoothing.</p> <p dir="auto">position: x-y position data for all days. List shape number of days, with shape on each day indicating x-y position in first dimension, and number of temporal bins / frames in second dimension.</p> <p dir="auto">trace: rise-extracted calcium traces, where “1” indicates a significant event. See paper for details on processing pipeline. If cell is not registered on given day, will appear as nan the same shape.</p> <p dir="auto">Precomputed results can also be downloaded in the zipped "results" folder to avoid recomputing main results from scratch using the Github code base linked above.</p>
Cold winters have morph-specific effects on natal dispersal distance in a wild raptor
<p>Dispersal is a key process with crucial implications in spatial distribution, density and genetic structure of species' populations. Dispersal strategies can vary according to both individual and environmental features, but putative phenotype-by-environment interactions have rarely been accounted for. Melanin-based color polymorphism is a phenotypic trait associated with specific behavioral and physiological profiles and is therefore a good candidate trait to study dispersal tactics in different environments. Here, using a 40 years dataset of a population of color polymorphic tawny owls (Strix aluco), we investigated natal dispersal distance of recruiting gray and pheomelanic reddish-brown (hereafter brown) color morphs in relation to post-fledging winter temperature and individual characteristics. Since morphs are differently sensitive to cold winters, we predicted that morphs' natal dispersal distances vary according to winter conditions. Winter temperature did not affect the proportion of brown (or gray) among recruits. We found that dispersal distances correlate with winter temperature in an opposite manner in the two morphs. While the gray morph undertakes larger movements in harsher conditions, likely because it copes better with winter severity, the brown morph disperses shorter distances when winters are harsher. We discuss this morph-specific natal dispersal pattern in a context of competition for territories between morphs and in terms of costs and benefits of these alternative strategies. Our results stress the importance of considering the interaction between phenotype and environment to fully disentangle dispersal movement patterns and provide further evidence that climate affects behavior and local distribution of this species.</p>
Genomic basis of deep‐water adaptation in Arctic Charr (Salvelinus alpinus) morphs
<p>Colonization of extreme habitats requires extensive adaptation to novel environmental challenges. Deep-water environments (>50 m) have high hydrostatic pressure, low temperature, and low light, requiring physiological and visual system adaptation, but genomic mechanisms underlying evolution in these environments are rarely known. Post-glacial colonization of Gander Lake in Newfoundland, Canada, by Arctic Charr (Salvelinus alpinus) provides the opportunity to study the genomic basis of adaptation to extreme deep-water environments. Here, we compare genomic and morphometric divergence between a phenotypically divergent deep-water, demersal morph adapted to depths of up to 288m and a larger, piscivorous morph occupying shallower depths. Using a SNP array and resequencing of nuclear and mitochondrial genomes, we find moderate genetic divergence (FST = 0.15 - 0.11) between morphs, consistent with divergence in body shape and size, despite absence of mitochondrial genome divergence. Outlier analyses identified three key genes with very high divergence against a genome-wide distribution of diverged genomic islands containing genes with functions related to deep-water adaptation such as sensory processes, ligand binding and regulation of transcription. Quantification of SNP array signal intensity variation associated with complex polymorphisms (e.g. copy number variants), similarly uncovered genetic separation of morphs and coincided with several islands of genomic divergence, but also revealed additional genomic regions and molecular mechanisms associated with depth adaptation. Together, these results show that adaptation to an extreme deep-water environment has been facilitated by multiple polymorphism types with roles in cellular and physiological processes, providing insight into the genomic basis of adaptation in extreme environments.</p>
Dandelion pappus morphing is actuated by radially patterned material swelling
<p>The dandelion pappus opens and closes reversibly to tune seed dispersal according to environmental moisture levels.</p> <p>In the Nature Communications paper "<em>Madeleine Seale, Annamaria Kiss, Simone Bovio, Ignazio Maria Viola, Enrico Mastropaolo, Arezki Boudaoud, Naomi Nakayama</em>, <strong>Dandelion pappus morphing is actuated by radially patterned material swelling</strong>, https://doi.org/10.1038/s41467-022-30245-3 the authors combined experiments with a computational model to show that pappus closure is coordinated by radially-patterned tissue swelling at the base of floral organs.</p> <p>This repository contains the source data for the paper.</p>
Molecular tracking and prevalence of the red colour morph restricted to a harvested leopard population in South Africa
<p>The red leopard (<em>Panthera pardus</em>) colour morph is a colour variant that occurs only in South Africa, where it is confined to the Central Bushveld bioregion. Red leopards have been spreading over the past 40 years, which raises the speculation that the prevalence of this phenotype is related to low dispersal of young individuals owing to high off-take in the region. Intensive selective hunting tends to remove large resident males from the breeding population, which gives young males the chance to mate with resident females that are more likely to be their relatives, eventually increasing the frequency of rare genetic variants. To investigate the genetic mechanisms underlying the red coat colour morph in leopards, and whether its prevalence in South Africa relates to an increase in genetic relatedness in the population, we sequenced exons of six colour coat associated genes and 20 microsatellite loci in twenty wild-type and four red leopards. The results were combined with demographic data available from our study sites. We found that red leopards own a haplotype in homozygosity identified by one non-synonymous SNP and a 1 bp deletion that causes a frameshift in the Tyrosinase Related Protein 1 (TYRP1), a gene known to be involved in the biosynthesis of melanin. Microsatellite analyses indicate clear signs of a population bottleneck and a relatedness of 0.11 among all pairwise relationships, eventually supporting our hypothesis that a rare colour morph in the wild has increased its local frequency due to low natal dispersal. This was backed by a high human-induced mortality rate (40%).</p>
Morphing of Stiffness-Heterogeneous Liquid Crystal Elastomers Via Mechanical Training and Locally Controlled Photopolymerization
<p>This dataset contains experimental and simulation data that support the findings of the study.</p> <p>Experimental data: stress-strain tests of highly crosslinked and lightly crosslinked liquid crystal elastomers.</p> <p>Simulation data: Codes (user element subroutine, .inp files) used for the finite element modeling of liquid crystal elastomer structures using the commercial software ABAQUS/Implicit.</p>
Morphological and phenological variation of flower colour morphs in a wild population of Opuntia streptacantha (Cactaceae)
<p>[ESP]</p> <p>Este repositorio contiene archivos .csv y .r, de los datos se utilizaron para el análisis estadístico del artículo de Manzanarez-Villasana y Mandujano en Plant Ecology and Evolution ( <a href="https://doi.org/10.5091/plecevo.112250" target="_blank" rel="noopener">https://doi.org/10.5091/plecevo.112250</a>)</p> <p>[ENG]</p> <p>This repository contains .csv and .r files of the data used for the statistical analysis of the article by Manzanarez-Villasana and Mandujano in Plant Ecology and Evolution (<a href="https://doi.org/10.5091/plecevo.112250" target="_blank" rel="noopener">https://doi.org/10.5091/plecevo.112250</a>).</p>
Figure 2 in An unusual morph in Green Vine Snake, Ahaetulla nasuta spp. (Lacépède, 1789) (Serpentes: Colubridae: Ahaetullinae) from Matheran, Maharashtra, India
Figure 2. Green vine snake (Ahaetulla nasuta var. isabellinus).
Flight initiation distance differs among eumelanin-based color morphs in feral pigeons
<p><strong><span>The table lists the variable and factors used in the article:</span></strong></p> <p><span>“Flight initiation distance differs among eumelanin-based color morphs in feral pigeons”</span></p> <p><span>- “Individual” is an individual number to differentiate individiual feral pigeons</span></p> <p><span>- “Location” is the name of the location in Paris where the FID of the individual was measured</span></p> <p><span>- “Date” is the date when the FID of the individual was measured</span></p> <p><span>- “ColorMorph” is the eumelanin-based color morph of the individual</span></p> <p><span>- “Latitude” and “Longitude” are the spatial coordinates of the site in Paris where the FID of the individual was measured</span></p> <p><span>- "FID" is the Flight Initiation Distance measured</span></p> <p><span>- columns from “Urbanisation300” to “Urbanisation1000” are the Urbanization rates determined within increasing radius from 300 to 1000m around each individual</span></p> <p><span>- columns from “PedestrianTraffic300PropNiv1” to “PedestrianTraffic900PropNiv1” are the proportion of streets of level 1 intensity, measured within increasing radius from 300 to 900m</span></p> <p><span>- columns from “PedestrianTraffic300PropNiv2” to “PedestrianTraffic900PropNiv2” are the proportion of streets of level 2 intensity, measured within increasing radius from 300 to 900m<span><br></span></span></p> <p><span>- columns from “PedestrianTraffic300PropNiv3” to “PedestrianTraffic900PropNiv2” are the proportion of streets of level 3 intensity, measured within increasing radius from 300 to 900m</span></p>
Pistil length and width, pollen diameter, pollen tube elongations, fruitset, seedset and germination rates in european invasive populations of Ludwigia grandiflora subsp. hexapetala in the two floral morphs
<p>Mating system influences local population genetic structure, effective size, offspring fitness and functional variation. Determining the respective importance of self- and cross-fertilization in hermaphroditic flowering plants is thus important to understand their ecology and evolution. The worldwide invasive species, <em>Ludwigia </em><em>grandiflora</em> subsp. <em>hexapetala </em>(<em>Lgh</em>) presents two floral morphs: one self-compatible short-styled morph (S-morph) and one self-incompatible long-styled morph (L-morph). Most invasive populations worldwide are only composed of self-incompatible L-morphs, which questions the importance of sexual reproduction during the invasion. In this study, we identified the mating systems of western European experimental and natural populations of <em>Lgh </em>by comparing structural characteristics of pollen and style, by studying self- and cross-pollen tube elongations and the viability of the resulting seeds and seedlings in both morphs. The dataset provides measures of pistil length and width; pollen diameter; pollen tube elongations along time after pollination; fruitset, seedset and germination rate in in situ monomorphic L-morph and S-morph populations of western europe invasive <em>Lgh</em>. These data support the manuscript "Late-acting self-incompatible system, preferential allogamy and delayed selfing in the heterostylous invasive populations of <em>Ludwigia grandiflora</em> subsp. <em>hexapetala</em>" by Luis O. Portillo Lemus, Marilyne Harang, Michel Bozec, Jacques Haury, Solenn Stoeckel and Dominique Barloy arguing for a mixed mating system in a European invasive populations of <em>Ludwigia grandiflora</em> subsp. <em>hexapetala.</em></p> <p> </p> <p> </p>
Genetic and ecomorphological divergence between sympatric Astyanax morphs from Central America
<p>Intraspecific ecological and morphological polymorphism can promote ecological speciation and the build-up of reproductive isolation. Here, we evaluate correlations among morphology, trophic ecology, and genetic differentiation between two divergent morphs (<i>elongate</i> and <i>deep-body</i>) of the fish genus <i>Astyanax</i> in the San Juan River basin in Central America, to infer the putative evolutionary mechanism shaping this system. We collected the two morphs from three water bodies and analyzed: 1) the correlation between body shape and the shape of the premaxilla, a relevant trophic morphological structure, 2) the trophic level and niche width of each morph, 3) the correspondence between trophic level and body and premaxillary shape, and 4) the genetic differentiation between morphs using mitochondrial and nuclear markers. We found a strong correlation between the body and premaxillary shape of the morphs. The elongate-body morph had a streamlined body, a premaxilla with acuter angles and a narrower ascending process, and a higher trophic level, characteristic of species with predatorial habits. By contrast, the deep-body morph had a higher body depth, a premaxilla with less acute angles, and a broader trophic niche, suggesting generalist habits. Despite the strong correlation between morphological and ecological divergence, the morphs showed limited genetic differentiation, supporting the idea that morphs may be undergoing incipient ecological speciation, although alternative scenarios such as stable polymorphism or plasticity should also be considered. This study provides support for the role of ecological factors promoting diversification in lake and stream-dwelling freshwater fish.</p>
Survival data of five artificial morphs with different transparency characteritics
<p>Fieldwork data of artificial prey survival of five different morphs with differences in their transparent element characteristics: O (opaque, 0 transparency), SW (small transparent windows), LW (large transparent windows), BE (large windows touching one prey edge) and B3E (large windows touching 3 prey edges). The experiment was performed in in two forests in southern France with evergreen and white oaks as predominant tree vegetation: La Rouvière forest (43.65°N, 3.64°E) and a large natural wooded area of the Montpellier Zoological Park (43.64°N, 3.87°E), for three 1-week sessions at each place. Artificial prey survival was monitored from predation by bird local communities once per day for four consecutive days. Morph order was randomized within blocks of 25 artificial prey, with 5 items per morph per block. Non-attacked prey were considered censoring data.</p>
Population genomic analyses support sympatric origins of parapatric morphs in a salamander
<p><span>In numerous clades, divergent sister species have largely non-overlapping geographic ranges. This pattern presumably arises because species diverged in allopatry or parapatry, prior to subsequent contact. Here we provide population-genomic evidence for the opposite scenario: previously sympatric ecotypes that have spatially separated into divergent monomorphic populations over large geographic scales (reverse sympatric scenario). We analyzed a North American salamander (</span><span><em>Plethodon</em> <em>cinereus</em></span><span>) with two color morphs that are broadly sympatric: striped (redback) and unstriped (leadback). Sympatric morphs can show considerable divergence in other traits, and many <em>Plethodon</em> species are fixed for a single morph. Long Island (New York) is unusual in having many pure redback and leadback populations that are spatially separated, with pure redback populations in the west and pure leadbacks in the east. Previous work showed that these pure-morph populations were genetically, morphologically, and ecologically divergent. Here, we performed a coalescent-based analysis of new data from 88,696 single-nucleotide polymorphisms to address the origins of these populations. This analysis strongly supports the monophyly of Long Island populations and their subsequent divergence into pure redback and pure leadback </span><span>populations</span><span>. Taken together, these results suggest that the formerly sympatric mainland morphs separated into parapatric populations on Long Island, reversing the conventional speciation scenario.</span></p>
The Role of Biological Motion in Face Perception: Social Judgements of Morphed Expressions Differ from Videos and Photographs.
<p>This study aimed to explore the impact of realistic and artifical facial dynamism on social percpetion. We compared ratings of emotion intensity and genuineness on video recordings, dynamic morphs, and static photographs of happy, sad, fearful, and angry expressions. The experiment was created using the online behavioural experiment builder Gorilla (AnwylIrvine et al., 2020). Each participant completed 144 trials, including 48 trials for each display type (video recording, morph, static), with 12 trials for each emotion (happy, disgust, fear, sadness). </p>
Fig. 2 in Peripatopsidae (Onychophora) from New Zealand - observations on selected morphs of the 'Peripatoides novaezealandiae-complex' in culture: morphological and reproductive aspects
Fig. 2. Head of Monckton male, lateral view (20 x).
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.