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.
176
datasets available to search
ShareScore release 0.9.0
Dataset results
176 results for “morphological diversification”
Data from: Genetic structure in Orkney island mice: isolation promotes morphological diversification
Open the record for dataset details and reuse information.
Data from: Convergent evolution across the Australian continent: ecotype diversification drives morphological convergence in two distantly related clades of Australian frogs
Open the record for dataset details and reuse information.
Data from: Genetic, morphological and acoustic evidence reveals lack of diversification in the colonization process in an island bird
Open the record for dataset details and reuse information.
Data from: Decoupled diversification dynamics of feeding morphology following a major functional innovation in marine butterflyfishes
Open the record for dataset details and reuse information.
Data from: Contrasting trajectories of morphological diversification on continents and islands in the Afrotropical white-eye radiation
Open the record for dataset details and reuse information.
Data from: Molecular and morphological phylogenetics of weevils (Coleoptera, Curculionoidea): do niche shifts accompany diversification?
The main goals of this study were to provide a robust phylogeny for the families of the superfamily Curculionoidea, to discover relationships and major natural groups within the family Curculionidae, and to clarify the evolution of larval habits and host-plant associations in weevils to analyze their role in weevil diversification. Phylogenetic relationships among the weevils (Curculionoidea) were inferred from analysis of nucleotide sequences of 18S ribosomal DNA (rDNA; ~2,000 bases) and 115 morphological characters of larval and adult stages. A worldwide sample of 100 species was compiled to maximize representation of weevil morphological and ecological diversity. All families and the main subfamilies of Curculionoidea were represented. The family Curculionidae sensu lato was represented by about 80 species in 30 "subfamilies" of traditional classifications. Phylogenetic reconstruction was accomplished by parsimony analysis of separate and combined molecular and morphological data matrices and Bayesian analysis of the molecular data; tree topology support was evaluated. Results of the combined analysis of 18S rDNA and morphological data indicate that monophyly of and relationships among each of the weevil families are well supported with the topology ((Nemonychidae, Anthribidae) (Belidae (Attelabidae (Caridae (Brentidae, Curculionidae))))). Within the clade Curculionidae sensu lato, the basal positions are occupied by mostly monocot-associated taxa with the primitive type of male genitalia followed by the Curculionidae sensu stricto, which is made up of groups with the derived type of male genitalia. High support values were found for the monophyly of some distinct curculionid groups such as Dryophthorinae (several tribes represented) and Platypodinae (Tesserocerini plus Platypodini), among others. However, the subfamilial relationships in Curculionidae are unresolved or weakly supported. The phylogeny estimate based on combined 18S rDNA and morphological data suggests that diversification in weevils was accompanied by niche shifts in host-plant associations and larval habits. Pronounced conservatism is evident in larval feeding habits, particularly in the host tissue consumed. Multiple shifts to use of angiosperms in Curculionoidea were identified, each time associated with increases in weevil diversity and subsequent shifts back to gymnosperms, particularly in the Curculionidae.
Figure 7 in Is mimicry a diversification-driver in ants? Biogeography, ecology, ethology, genetics and morphology define a second West-Palaearctic Colobopsis species (Hymenoptera: Formicidae)
Figure 7. Coexistence between Colobopsis and their putative model species on the same tree.
FIGURE 5 in Morphological diversification of alien and native aquatic snails of the genus Physa and Aplexa (Gastropoda: Physidae) of Western and Central European range
FIGURE 5. SEM micrograph of a P. fontinalis shell (10.18150/HIMKRE) (A–C) (Phot. M. Gawlak).
FIGURE 5 in Morphological and genetic diversification of Old-World marbled newts, with the description of a new and 'not-at-all-cryptic' subspecies from the Iberian Peninsula (Triturus, Salamandridae)
FIGURE 5 Results of a principal component analysis on size corrected morphometric data for Triturus pygmaeus pygmaeus (solid lines) and T. p. lusitanicus ssp. nov. (interrupted lines). The ellipses show the 95% confidence interval of the mean. The left panel is for males and the right panel is for females. Percentages of total variance explained are indicated along the axes. For details, see text.
FIGURE 3 in Morphological and genetic diversification of pygmy and marbled newts, with the description of a new species from the wider Lisbon Peninsula (Triturus, Salamandridae)
FIGURE 3 (A) Genetically investigated populations of large-bodied newts from the western part of the Iberian Peninsula plotted with the nearest point method, with a maximum spatial extrapolation of ca. 25 km. Colour codes are: blue – T. marmoratus, red – T. pygmaeus and ochre – T. rudolfi sp. nov. Inferred hybrid populations of T. marmoratus and 'T. pygmaeus' are shown in grey (as in fig. 2). Note that populations from densely sampled areas do not always stand out separately. Five populations from along the lower Tejo area added a posteriori are shown by black dots. The boxed area in between 39.3-39.7 N encompasses the transect studied for spatial variation in morphometrics (35 populations), Nlinks (35 populations), mitochondrial DNA (69 populations) and nuclear genetic composition (82 populations) with HZAR software (for results see fig. 4). The nominal centre of the T. pygmaeus – T. rudolfi sp. nov. hybrid zone is at Entroncamento railway station (E, coordinates -8.478 E, 39.456 N). (B) Dirichlet tessellation of populations studied for variation in nuclear genetic composition, with colours like above. The yellow to red colour bar corresponds to the one shown in fig. 4. Distances in km are relative to Entroncamento railway station. Downloaded from Brill.com 07/10/2024 02:01:22PM via Open Access. This is an open access article distributed under the terms of the CC BY 4.0 license. https://creativecommons.org/licenses/by/4.0/
FIGURE A2 in Morphological and genetic diversification of Old-World marbled newts, with the description of a new and 'not-at-all-cryptic' subspecies from the Iberian Peninsula (Triturus, Salamandridae)
FIGURE A2 Holotype of Triturus pygmaeus lusitanicus ssp. nov. in live condition, at the left (top) and right dorso-lateral view (middle), and in ventral view (bottom). The scale bar equals 10 mm.
FIGURE 1 in Morphological and genetic diversification of Old-World marbled newts, with the description of a new and 'not-at-all-cryptic' subspecies from the Iberian Peninsula (Triturus, Salamandridae)
FIGURE 1 Distribution of marbled newts in the Iberian Peninsula with Triturus marmoratus in blue and T. pygmaeus in red (after Wielstra et al., 2014). The arrow indicates the position of a T. pygmaeus subspecies border inside Doñana National Park (present paper). Downloaded from Brill.com 07/10/2024 02:00:28PM via Open Access. This is an open access article distributed under the terms of the CC BY 4.0 license. https://creativecommons.org/licenses/by/4.0/
FIGURE A1 in Morphological and genetic diversification of Old-World marbled newts, with the description of a new and 'not-at-all-cryptic' subspecies from the Iberian Peninsula (Triturus, Salamandridae)
FIGURE A1 Variation in ventral colouration of Triturus pygmaeus. Top row – T. p. lusitanicus ssp. nov.: male (with dark tail underside) and two females from Villalba and male from Cardeña. Middle row – T. p. pygmaeus: male from Salinas, male and female from Los Barrios and male from Rio Alberite. Bottow row – T. p. pygmaeus: two males and two females from Rio Alberite. PHOTOGRAPHY L. A. VAN DER LAAN
FIGURE 1 in Morphological and genetic diversification of pygmy and marbled newts, with the description of a new species from the wider Lisbon Peninsula (Triturus, Salamandridae)
FIGURE 1 The Iberian Peninsula with the approximate distributions of four taxa of large-bodied newts as described in table 1. Colour codes are: blue – Triturus marmoratus, dark red – T. pygmaeus pygmaeus, light red – T. p. lusitanicus and brown – T. rudolfi nov. sp., i.e., the newly described species from the wider Lisbon Peninsula. Letters indicate the capital cities Lisbon, Portugal (L) and Madrid, Spain (M) as well as Peniche (P) at the Atlantic coast. Major rivers partially coinciding with (sub)species borders are the Guadalquivir, the Vouga and the Tejo. The new species' type locality Lagoa Seca near Valado dos Frades is indicated by a long arrow. The insert shows an adult male T. marmoratus. ANIMAL DRAWING BY BAS BLANKEVOORT
Figure 1 in Morphological diversification with emphasis on the structural and homology patterns of male genitalia in genus Limnebius (Leach 1815; Hydraenidae: Coleoptera)
Figure 1. Limnebius general view (L. grandicollis, Madeira).
Fig. 4 in High genetic and morphological diversification of the Euphorbia verrucosa alliance (Euphorbiaceae) in the Balkan and Iberian peninsulas
Fig. 4. Geographic distribution of the groups inferred by nonhierarchical K-means clustering of AFLP data of Euphorbia verrucosa at K (the number of groups) ranging from 2 to 7 (K = 8 not shown). Groups are colour-coded; admixed populations are coded by two colours.
Fig. 7 in High genetic and morphological diversification of the Euphorbia verrucosa alliance (Euphorbiaceae) in the Balkan and Iberian peninsulas
Fig. 7. Elevational distribution of diploid (2x) and tetraploid (4x) populations of Euphorbia flavicoma, E. verrucosa, E. serpentini (E. serp.) and E. montenegrina, following their distribution from west to east and with increasing elevation within each group. Elevational data were recorded in the field and are given in supplementary Table S1.
Fig. 1 in High genetic and morphological diversification of the Euphorbia verrucosa alliance (Euphorbiaceae) in the Balkan and Iberian peninsulas
Fig. 1. Distribution of Euphorbia flavicoma (populations 1–43 in suppl. Table S1), E. verrucosa (44–113), E. serpentini (114–122) and E. montenegrina (123–146) sampled and used in this study. Black symbols indicate populations used in genetic (AFLP and/or ITS) and mostly also in relative genome size (RGS) and morphometric analyses, grey symbols indicate additional populations used in RGS and/or morphometric analyses. White dots within some symbols of E. flavicoma and E. montenegrina indicate tetraploid populations (all other populations, for which RGS was measured, were diploid). The asterisk within one circle indicates the population from Puy du Wolf in southern France, which was described as E. flavicoma subsp. costeana, but actually belongs to E. verrucosa.
Fig. 2 in High genetic and morphological diversification of the Euphorbia verrucosa alliance (Euphorbiaceae) in the Balkan and Iberian peninsulas
Fig. 2. ITS variation in Euphorbia flavicoma, E. montenegrina, E. serpentini and E. verrucosa. NeighborNet of ITS sequences (A) and geographic position of the ITS ribotype groups revealed by the NeighborNet (B). The asterisk in (A) denotes the population 116 of E. serpentini, which had the same ribotype as several populations of E. montenegrina; for better visibility, the symbols for both species are thus slightly displaced in the NeighborNet.
Differential geographical and ecological dynamics allow diversification of morphologically convergent giant bromeliads in the Atlantic Forest
<p>Aim: This paper investigates evolutionary mechanisms that allow morphologically convergent lineages share the same geographical space. We compared the events occurred along the diversification of <i>Karawata</i> and <i>Aechmea</i> subgen. <i>Chevaliera</i> in Atlantic Forest by 1) verifying whether the climatic niches and habitats of <i>Karawata </i>and <i>Aechmea </i>subgen.<i> Chevaliera</i> are similar; 2) testing whether the two groups had the same pattern of colonization in the Atlantic Forest; and 3) evaluating whether they had the same evolutionary dynamics of environmental space occupation. We see the two bomeliad lineages as a model case to understand sympatric diversification in the Atlantic Forest biome.</p> <p>Location: Brazilian Atlantic Forest</p> <p>Taxon: <i>Karawata</i> and <i>Aechmea </i>subgen. <i>Chevaliera</i> (Bromeliaceae: Bromelioideae)</p> <p>Methods: We explored differences in evolutionary dynamics between the lineages analyzing the divergence times, estimating ancestral ranges and habitats, testing niche similarity and evaluating shifts in speciation dynamics.</p> <p>Results: <i>Karawata </i>and <i>A. </i>subgen. <i>Chevaliera </i>most likely originated in the Pliocene and diversified during the Pleistocene. The two clades originated in ombrophilous forests and shared a similar environmental space. However, <i>Karawata </i>and <i>A. </i>subgen. <i>Chevaliera </i>show different dynamics in the occupation of geographical and environmental spaces. Our results suggest that the São Francisco and Jequitinhonha Rivers acted as geographical barriers for <i>Karawata </i>and <i>A. </i>subgen. <i>Chevaliera</i>.</p> <p>Main Conclusions: Differences in spatial and environmental evolutionary dynamics allow the two groups to occupy similar habitats as well as environmental and geographical spaces in the Brazilian Atlantic Forest.</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.