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.
9,937
datasets available to search
ShareScore release 0.9.0
Dataset results
9,937 results for “Endemicity”
FIGURE 1 in Taxonomic notes on the Chinese endemic genus Straneostichus Sciaky, 1994 (Coleoptera: Carabidae: Pterostichini), with descriptions of three new species
FIGURE 1. Distribution for species of the genus Straneostichus. circles: the fischeri-group; squares: the vignai-group; deep blue: S. ovipennis; light blue: S. politus sp. nov.; deep green: S. haeckeli; light green: S. fischeri; brown: S. puetzi; red: S. ganqingensis sp. nov.; yellow: S. liupanensis sp. nov.; violet: S. vignai; green: S. kirschenhoferi; black: S. rotundatus; gray: S. farkaci.
FIGURE 21 in Taxonomic notes on the Chinese endemic genus Straneostichus Sciaky, 1994 (Coleoptera: Carabidae: Pterostichini), with descriptions of three new species
FIGURE 21. Pronotum hind angle and basal area of Straneostichus species (fischeri-group). A. S. ovipennis (Songpan, Sichuan); B. S. politus sp. nov. (Baoxing, Sichuan); C. S. haeckeli (Meixian, Shaanxi); D. S. fischeri (Zêkog, Qinghai); E. S. puetzi (Songxian, Henan); F. S. liupanensis sp. nov. (Jingyuan, Ningxia); G. S. ganqingensis sp. nov. (Xunhua, Qinghai). Scales: 1.0 mm.
FIGURES 2‒4. Straneostichus ovipennis Sciaky, 1994. 2 in Taxonomic notes on the Chinese endemic genus Straneostichus Sciaky, 1994 (Coleoptera: Carabidae: Pterostichini), with descriptions of three new species
FIGURES 2‒4. Straneostichus ovipennis Sciaky, 1994. 2. dorsal habitus, male (Songpan, Sichuan); 3‒4. median lobe of aedeagus: dorsal (A), ventral (B) and right lateral view (C); 3. Songpan, Sichuan; 4. Zhouqu, Gansu. Scale: 5.0 mm for 2; 0.5 mm for other.
FIGURES 18‒20 in Taxonomic notes on the Chinese endemic genus Straneostichus Sciaky, 1994 (Coleoptera: Carabidae: Pterostichini), with descriptions of three new species
FIGURES 18‒20. Straneostichus ganqingensis sp. nov.. 18. dorsal habitus, holotype; 19‒20. median lobe of aedeagus: dorsal (A), ventral (B) and right lateral view (C). 19. holotype; 20. Paratype (Dangchang, Gansu). Scale: 5.0 mm for 18; 0.5 mm for other.
FIGURES 1–5 in Male of Danielithosia pyralina (Rothschild, 1912) comb. nov., an endemic moth species from Sumbawa and Flores (Lepidoptera: Erebidae: Arctiinae)
FIGURES 1–5. Danielithosia pyralina (Rothschild, 1912) comb. nov. from Flores Island, Indonesia: 1) male; 2) female; 3) male genitalia; 4) aedeagus; 5) female genitalia. Scale bar = 5 mm. Photos: Vitaly M. Spitsyn.
Interspecific hybridization and island colonization history, not rarity, most strongly affect the genetic diversity in a clade of Mascarene-endemic trees
<p>Many factors shape the genetic diversity of island-endemic trees, with important implications for conservation. Oceanic island-endemic lineages undergo an initial founding bottleneck during the colonization process and subsequently accumulate diversity following colonization. Moreover, many island endemics occur in small populations and are further threatened by anthropogenic factors that cause population declines, making them susceptible to losses in genetic diversity through genetic drift, inbreeding, and bottlenecks. <a name="_Hlk80963234"></a>However, life-history traits commonly found in trees, such as outcrossing mechanisms, long lifespans, and a propensity for interspecific hybridization, may help buffer against losses of genetic variation. To assess the relative importance of colonization history, rarity, and distribution in shaping genetic diversity of island-endemic trees, we conducted a<a name="_Hlk80964566"></a> comparative population genomic analysis of 13 species of <em>Diospyros</em> (Ebenaceae) endemic to the Mascarene Islands that differ in island colonization history, distribution, population size, and IUCN threat status. We genotyped 328 individuals across the islands using 2b-RADseq, compared genetic diversity both among and within species, and assessed patterns of genetic structure. <a name="_Hlk80965008"></a>Genetic diversity did not vary significantly by IUCN status, but we found that species that co-occur with others on the same intermediate-aged island (Mauritius) had much greater genetic diversity than those that occur solitarily on an island (Réunion and Rodrigues), likely because of greater interspecific hybridization among species with overlapping distributions and processes related to time since island colonization. Results presented here were used to <a name="_Hlk80991503"></a>determine priority localities for <em>in situ</em> and <em>ex situ</em> conservation efforts to maximize the genetic diversity of each Mascarene <em>Diospyros</em> species.</p>
PLATE 4 in Systematic significance of pollen morphology in rare endemic taxa of Astragalus L. (Fabaceae)
PLATE 4. SEM micrographs of pollen in Astragalus L. (polar view, colpus view and surface ornamentation), (a–c) A. hostilis Boiss. (d–f) A. kuramensis Baker (g–i) A. psilacanthus Boiss. (j–l) A. purpurascens Bunge (m–o) A. stocksii Bunge
PLATE 2 in Systematic significance of pollen morphology in rare endemic taxa of Astragalus L. (Fabaceae)
PLATE 2. Pollen LM micrographs of Astragalus L. PV= polar view; EV= equatorial view (a-b) A. amherstianus Benth. (PV-EV), (c- d) A. auganus Bunge (PV-EV), (e-f) A. brahuicus Bunge (PV-EV), (g-h) A. chorizanthus Rech.f. & Gilli (PV-EV), (i-j) A. commixtus Bunge (PV-EV), (k-l) A. hostilis Boiss. (PV-EV), (m-n) A. kuramensis Baker (PV-EV), (o-p) A. psilacanthus Boiss. (PV-EV), (q-r) A. purpurascens Bunge (PV-EV), (s-t) A. stocksii Bunge (PV-EV). Scale bar= 40X
FIGURE 13 in Systematic significance of pollen morphology in rare endemic taxa of Astragalus L. (Fabaceae)
FIGURE 13. Dendrogram showing the relationship of Astragalus L. species based on palynological data (taxa according to Table 1).
FIGURE 12 in Systematic significance of pollen morphology in rare endemic taxa of Astragalus L. (Fabaceae)
FIGURE 12. Principal coordinates analysis (PCoA) biplot of Astragalus L. species based on palynological data (taxa according to Table 1).
FIGURE 11 in Systematic significance of pollen morphology in rare endemic taxa of Astragalus L. (Fabaceae)
FIGURE 11. Principal component analysis (PCA) scatter plot of Astragalus L. species based on palynological data (taxa according to Table 1).
PLATE 1 in Systematic significance of pollen morphology in rare endemic taxa of Astragalus L. (Fabaceae)
PLATE 1. Field photographs of Astragalus L. taxa. (a) A. amherstianus Benth. (b) A. auganus Bunge (c) A. brahuicus Bunge (d) A. chorizanthus Rech.f. & Gilli (e) A. commixtus Bunge (f) A. hostilis Boiss. (g) A. kurramensis Baker (h) A. psilacanthus Boiss. (i) A. purpurascens Bunge (j) A. stocksii Bunge.
FIGURE 1 in Systematic significance of pollen morphology in rare endemic taxa of Astragalus L. (Fabaceae)
FIGURE 1. Study area map and grid system showing in blue the regions where plant specimens were collected with reddish star.
PLATE 3 in Systematic significance of pollen morphology in rare endemic taxa of Astragalus L. (Fabaceae)
PLATE 3. SEM micrographs of pollen in Astragalus L. (polar view, colpus view and surface ornamentation), (a-c) A. amherstianus Benth. (d-f) A. auganus Bunge (g-i) A. brahuicus Bunge (j-l) A. chorizanthus Rech.f. & Gilli (m-o) A. commixtus Bunge
FIGURES 3–7 in Cytotaxonomy of the endemic Karst and Danxia ferns in Adiantum (Pteridaceae)
FIGURES 3–7. (Continued) Photomicrographs (left) and explanatory diagrams (right) of chromosomes of A. longzhouensis (2n = 60). 3-6: individuals collected in DX (wah2020060616); 7: individuals collected in DB (wah2020060618).
FIGURE 12 in Cytotaxonomy of the endemic Karst and Danxia ferns in Adiantum (Pteridaceae)
FIGURE 12. Morphology of individuals responding to Figs 1–11 and Table 1. A–I: A. gravesii complex; J: A. dentatum; K–L: A. mariesii complex; M: A. juxtapositum; N-O: A. longzhouensis. A: JEB, B: GAS; C: HFB; D: HMMB; E: JW1B1; F: HB1B; G: SJB; H: GGL1; I: GXM; J: HB2C; K: HMMX; L: SBSX; M: GSD; N: DX; O: DB. Among the A. gravesii complex (A–I), D and G were typical A. gravesii, the others were intermediate morphology. In A. mariesii complex, L is the typical A. mariesii and K was the A. mariesii complex. All short names of populations and their morphological characters were listed in Table 1.
FIGURES 3–7 in Cytotaxonomy of the endemic Karst and Danxia ferns in Adiantum (Pteridaceae)
FIGURES 3–7. Photomicrographs (left) and explanatory diagrams (right) of chromosomes of A. longzhouensis (2n = 60). 3-6: individuals collected in DX (wah2020060616); 7: individuals collected in DB (wah2020060618).
FIGURE 13 in Cytotaxonomy of the endemic Karst and Danxia ferns in Adiantum (Pteridaceae)
FIGURE 13. Strict consensus tree of six maximally parsimonious trees for series Gravesiana obtained from atpA, atpB, rbcL, trnL- F, rps4-trnS and matK sequences in Wang et al. 2017. The bootstrap values were shown above the lines, and the Bayesian posterior probabilities were shown below the lines.
FIGURE 11 in Cytotaxonomy of the endemic Karst and Danxia ferns in Adiantum (Pteridaceae)
FIGURE 11. Photomicrographs and explanatory diagrams of chromosomes of A. gravesii complex from different populations. A: individuals collected in JEB (2n = 120) (wah2020052609); B: individuals collected in HFB (2n = ca. 120) (WAH055); C: individuals collected in HMMB (2n = 128) (wah2020060608); D: individuals collected in GAS (2n = 128) (wah2020062102); E: individuals collected in SJB (2n = ca. 150) (wah20191113003); F: individuals collected in JW1B1 (2n = ca. 150) (wah2020060611); G: individuals collected in HB1B (2n = 150) (wah2020052605); H: individuals collected in GGL1 (2n = ca. 180) (wah2020062003); I: individuals collected in GXM (2n = 64) (wah2020062202). All short names of populations were listed in Table 1.
FIGURES 8–10 in Cytotaxonomy of the endemic Karst and Danxia ferns in Adiantum (Pteridaceae)
FIGURES 8–10. Photomicrographs (left) and explanatory diagrams (right) of chromosomes of A. dentatum and A. mariesii. 8: sample of A. dentatum (2n = ca. 60) collected in HB2C (wah2020052604); 9: sample of A. mariesii (2n = ca. 120) from the SBSX (wah20191113002); 10: sample of A. mariesii complex (2n = 60) collected in HMMX (wah2020060609). All short names of HMMX, SBSX and HB2C were listed in Table 1.
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.