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.
49
datasets available to search
ShareScore release 0.9.0
Dataset results
49 results for “geographic disjunction”
Foliar endophyte diversity in eastern Asia-eastern North America disjunct tree species – Influences of host identity, environment, phylogeny, and geographic isolation
<p><span>The well-known eastern Asia (EA) and eastern North America (ENA) floristic disjunction provides a unique system for biogeographic and evolutionary studies. Despite considerable interest in the disjunction, few studies have investigated the patterns and their underlying drivers of allopatric divergence in sister species or clades isolated in the two areas. Endophyte diversity and assembly in disjunct sister taxa, as an ecological trait, may have played an important role in the processes of allopatric evolution, but no studies have examined endophytes in these disjunct lineages. In this study, we compared foliar endophytes (including both fungi and bacteria) in 17 EA-ENA disjunct species pairs from genera representing conifers and major clades of angiosperms, as well as 23 species of </span><em>Cornus</em> from the US and China. We sequenced the ITS of fungi and 16S rDNA of bacteria to understand the composition of the endophyte community and gain insights into the relative roles of geographic isolation, host identity, phylogeny, and environment in shaping endophytic diversity patterns. We detected a much richer fungal than bacterial community in leaves of all species. Beta diversity varied greatly among individuals within species, between species, among genera, and among three natural environmental conditions. Based on a principal coordinates analysis, we found no close clustering of endophyte communities in samples from the same host plant species, from the same genus, or from the same geographic origin (i.e. EA or ENA) (when plants were grown in the same common garden), but we did detect clustering of samples from plants grown in the same environment (i.e., same geographic location). We observed separation of microbes in plant samples of the same species grown in different locations/environments. However, pooled samples across all species from the common garden with the same geographic origin (EA vs. ENA) showed a moderate level of dissimilarity in fungal endophytes between EA and ENA. An overall significant correlation between endophyte community dissimilarity and phylogenetic distance was detected among the disjunct genera but not among species of <em>Cornus</em>. However, significant correlation between order, family, and genera of endophytes and phylogenetic distance of Cornus species was observed. We also found no significant differences in Foliar Endophytic Fungal (FEF) communities between counterparts of disjunct species pairs in EA and ENA in most genera except in <em>Liriodendron</em> and <em>Cornus</em>, although the beta diversity within genera is high. Our results suggest important roles of host identity and environment (geographic locations), and a likely minor role of phylogenetic divergence and biogeographic isolation in shaping the pattern of foliar endophyte diversity and assembly in the EA-ENA disjunct genera, as well as in <em>Cornus</em>. The results further suggest that the sister taxa in EA and ENA are likely different in their foliar endophyte composition when growing in their native habitats due to differences in geographic locations and local environments, which is potentially a factor driving allopatric divergence of species functional features. This hypothesis can be tested by analysis of samples from native habitats.</p>
Foliar endophyte diversity in eastern Asia-eastern North America disjunct tree species – Influences of host identity, environment, phylogeny, and geographic isolation
Open the record for dataset details and reuse information.
FIGURES 1–2. Chaleponcus parensis n in East African odontopygid millipedes 2: A new, geographically disjunct species of Chaleponcus (Attems 1914) from the Pare Mts., Tanzania (Diplopoda, Spirostreptida, Odontopygidae)
FIGURES 1–2. Chaleponcus parensis n. sp. 1: left gonopod, posterior view. 2: left gonopod, anterior view. Scale 1mm. ls: lateral spine, mml1: first median metaplical lobe, mml2: second median metaplical lobe, mpl: median proplical lobe, ms: metaplical spine, pl: proplical lamella.
Distribution. Two geographically disjunct ranges, including arid parts of extreme SW Angola, W Namibia, and W South Africa S to Western Cape Province, and N Mozambique, E & S Zimbabwe, extreme E Botswana, and N South Africa; an 800km-gap separates the two parts of the species' range between Augrabies Falls on the Orange River in W South Africa and the Magaliesberg of North West and Gauteng provinces in N South Africa. in Molossidae
Distribution. Two geographically disjunct ranges, including arid parts of extreme SW Angola, W Namibia, and W South Africa S to Western Cape Province, and N Mozambique, E & S Zimbabwe, extreme E Botswana, and N South Africa; an 800km-gap separates the two parts of the species' range between Augrabies Falls on the Orange River in W South Africa and the Magaliesberg of North West and Gauteng provinces in N South Africa.
Subspecies and Distribution. P. l. longimembris Coues, 1875 — SW USA (Mojave Desert and Transverse Ranges, SW California). P. l. aestivus Huey, 1928 — NW Mexico (W base Sierra Juarez to Valle de la Trinidad, N Baja California). P.l. arizonensis Goldman, 1931 — SW USA (SC Utah and NC Arizona to SE Nevada). P. l.bangsi Mearns, 1898 — SW USA (W Colorado Desert of S California). P. l. bombycinus Osgood, 1907 — SW USA and NW Mexico (lower Colorado River Valley of SE California, SW Arizona, NE Baja California, and NW Sonora). P. l. brevinasus Osgood, 1900 — SW USA (arid coastal basins of SW California). P. l. gulosus Hall, 1941 — W USA (along the W margin of former Pleistocene Lake Bonneville in the Great Basin of E Nevada and W Utah). P. l. internationalis Huey, 1939 — SW USA and NW Mexico (SC California and adjacent NC Baja California). P. l. kinoensis Huey, 1935 — NW Mexico (disjunct and geographically restricted population along Bahia Kino, W Sonora), but may be extinct. P. l. nevadensis Merriam, 1894 — W USA (Great Basin of SE Oregon, NE California, and NC Nevada). P. l. pacificus Mearns, 1898 — SW USA (coastal plains of SW California to the USA-Mexico border). P. I. panamintinus Merriam, 1894 — SW USA (Great Basin of W Nevada and SE California). P. l. pimensis Huey, 1937 — SW USA (disjunct distribution in SC Arizona). P. l. salinensis Bole, 1937 — SW USA (restricted distribution in the Salinas Valley of SE California). P. l. tularensis Richardson, 1937 — SW USA (restricted distribution in the upper valley of the Kern River, SC California). P. l. venustus Huey, 1930 — NW Mexico (known only from the type locality of San Agustin, NC Baja California). in Heteromyidae
Subspecies and Distribution. P. l. longimembris Coues, 1875 — SW USA (Mojave Desert and Transverse Ranges, SW California). P. l. aestivus Huey, 1928 — NW Mexico (W base Sierra Juarez to Valle de la Trinidad, N Baja California). P.l. arizonensis Goldman, 1931 — SW USA (SC Utah and NC Arizona to SE Nevada). P. l.bangsi Mearns, 1898 — SW USA (W Colorado Desert of S California). P. l. bombycinus Osgood, 1907 — SW USA and NW Mexico (lower Colorado River Valley of SE California, SW Arizona, NE Baja California, and NW Sonora). P. l. brevinasus Osgood, 1900 — SW USA (arid coastal basins of SW California). P. l. gulosus Hall, 1941 — W USA (along the W margin of former Pleistocene Lake Bonneville in the Great Basin of E Nevada and W Utah). P. l. internationalis Huey, 1939 — SW USA and NW Mexico (SC California and adjacent NC Baja California). P. l. kinoensis Huey, 1935 — NW Mexico (disjunct and geographically restricted population along Bahia Kino, W Sonora), but may be extinct. P. l. nevadensis Merriam, 1894 — W USA (Great Basin of SE Oregon, NE California, and NC Nevada). P. l. pacificus Mearns, 1898 — SW USA (coastal plains of SW California to the USA-Mexico border). P. I. panamintinus Merriam, 1894 — SW USA (Great Basin of W Nevada and SE California). P. l. pimensis Huey, 1937 — SW USA (disjunct distribution in SC Arizona). P. l. salinensis Bole, 1937 — SW USA (restricted distribution in the Salinas Valley of SE California). P. l. tularensis Richardson, 1937 — SW USA (restricted distribution in the upper valley of the Kern River, SC California). P. l. venustus Huey, 1930 — NW Mexico (known only from the type locality of San Agustin, NC Baja California).
Subspecies and Distribution. M.a.assamensisMcClelland,1839—S&SEAsia,200-2750mabovesealevel,EofthegreatbendoftheBrahmaputraRiver,inSWChina(SEXizangAutonomousRegion[=Tibet],SWYunnan,Guizhou,SWGuangxiprovinces),NEIndia(EArunachalPradesh,EAssam,Nagaland,Meghalaya,M.a.,Mizoram,andTripurastates),SandEthroughN&EMyanmar,N&WThailand,Laos,andNVietnam. M. a. pelops Hodgson, 1840 — Himalayas up to 3100 m above sea level, from C Nepal (W limit Tipling, 83° 36' E) E through NE India (N West Bengal, Sikkim, W Assam states), and Bhutan (E limit M.a. River, 90° 58" E), with a widely disjunct record, of what may be a geographic relict, in coastal SW Bangladesh (Sundarbans). in Cercopithecidae
Subspecies and Distribution. M.a.assamensisMcClelland,1839—S&SEAsia,200-2750mabovesealevel,EofthegreatbendoftheBrahmaputraRiver,inSWChina(SEXizangAutonomousRegion[=Tibet],SWYunnan,Guizhou,SWGuangxiprovinces),NEIndia(EArunachalPradesh,EAssam,Nagaland,Meghalaya,M.a.,Mizoram,andTripurastates),SandEthroughN&EMyanmar,N&WThailand,Laos,andNVietnam. M. a. pelops Hodgson, 1840 — Himalayas up to 3100 m above sea level, from C Nepal (W limit Tipling, 83° 36' E) E through NE India (N West Bengal, Sikkim, W Assam states), and Bhutan (E limit M.a. River, 90° 58" E), with a widely disjunct record, of what may be a geographic relict, in coastal SW Bangladesh (Sundarbans).
FIGURE 2 in Is Ronnbergia (Bromeliaceae, Bromelioideae) a geographically disjunct genus? Evidence from morphology and chloroplast DNA sequence data
FIGURE 2. Majority rule consensus tree from the BI analysis of the "total evidence" dataset from morphological and molecular data. Black lines represent the branches that remained identical in the strict consensus tree of the MP analysis. Grey lines represent branches obtained only in the BI analysis. Numbers in the nodes correspond to posterior probabilities and bootstrap values (PP/BT); dashes (-) represent low (<50%) or no BT support.
FIGURE 1 in Is Ronnbergia (Bromeliaceae, Bromelioideae) a geographically disjunct genus? Evidence from morphology and chloroplast DNA sequence data
FIGURE 1. Comparison of the phylogenetic hypothesis provided by the independent morphological and molecular datasets. Species of Ronnbergia are highlighted in red. A. Strict consensus of the four most parsimonious trees from the MP analysis of morphological data. Numbers in the nodes correspond to bootstrap values. B. Majority rule consensus tree from the BI analysis of the molecular dataset. Numbers in the nodes correspond to posterior probabilities and bootstrap values (PP/BT); dashes (-) represent low (<50%) or no BT support.
FIGURE 3 in Is Ronnbergia (Bromeliaceae, Bromelioideae) a geographically disjunct genus? Evidence from morphology and chloroplast DNA sequence data
FIGURE 3. Geographic distribution of the three clades containing species of Ronnbergia. Data points were obtained from the Global Biodiversity Information Facility—GBIF (www.gbif.org).
Experimental admixture among geographically disjunct populations of an invasive plant yields a global mosaic of reproductive incompatibility and heterosis
Open the record for dataset details and reuse information.
Figures 15-19 from: Aubert M, Müller A, Praz C (2024) A new osmiine bee with a spectacular geographic disjunction: Hoplitis (Hoplitis) onosmaevae sp. nov. (Hymenoptera, Anthophila, Megachilidae). Alpine Entomology 8: 65-79. https://doi.org/10.3897/alpento.8.118039
Figures 15-19 Hoplitis onosmaevae sp. nov., foraging habitat and behaviour (France, Saint-Dalmas-le-Selvage, 23.6.2020). 15. Foraging habitat with patch of the host plant, Onosma tricerosperma subsp. fastigiata; 16. Male resting on stone between two patrolling flights, with unfolded proboscis; 17. Male resting on stone between two patrolling flights; 18. Female on a flower of Onosma tricerosperma subsp. fastigiata; 19. Female concentrating nectar with widely open mandibles.
Figures 10-14 from: Aubert M, Müller A, Praz C (2024) A new osmiine bee with a spectacular geographic disjunction: Hoplitis (Hoplitis) onosmaevae sp. nov. (Hymenoptera, Anthophila, Megachilidae). Alpine Entomology 8: 65-79. https://doi.org/10.3897/alpento.8.118039
Figures 10-14 Hoplitis onosmaevae sp. nov., male. 10. Left antenna, dorsal view; 11. Left antenna, front view; 12. Sterna 3–6 (the metasoma was slightly extended to expose S6); 13. Terga 5–7, dorsal view; 14. Membraneous appendage of sternum 6, lateral view.
Figure 1 from: Aubert M, Müller A, Praz C (2024) A new osmiine bee with a spectacular geographic disjunction: Hoplitis (Hoplitis) onosmaevae sp. nov. (Hymenoptera, Anthophila, Megachilidae). Alpine Entomology 8: 65-79. https://doi.org/10.3897/alpento.8.118039
Figure 1 Phylogenetic tree based on maximum likelihood analyses of sequence data of the mitochondrial gene COI and of the three nuclear genes conserved ATPase domain (CAD), elongation factor 1-alpha (EF) and long-wavelength rhodopsin (Opsin). Numbers above branches: statistical support based on 1000 bootstrap replicates (values below 50 are omitted) in the analysis with 4 partitions (by gene); number below branches: support in analysis with 7 partitions (by codon position; a hyphen under a node indicates that this node was not recovered in the analysis); the topology is from the analysis with 4 partitions.
Figures 20-25 from: Aubert M, Müller A, Praz C (2024) A new osmiine bee with a spectacular geographic disjunction: Hoplitis (Hoplitis) onosmaevae sp. nov. (Hymenoptera, Anthophila, Megachilidae). Alpine Entomology 8: 65-79. https://doi.org/10.3897/alpento.8.118039
Figures 20-25 Hoplitis onosmaevae sp. nov., nesting habitat and behaviour (France, Saint-Dalmas-le-Selvage, 23.6.2020, for photographs). 20. Female in buzzing position on a flower of Onosma tricerosperma subsp. fastigiata; 21. Female leaving a flower of Onosma tricerosperma subsp. fastigiata; 22. Nesting habitat with dead trunks of larch; 23. Nest entrance plugged with sand and pebbles; 24. Female near the nest entrance, which is visible at the bottom left; 25. Cross-section of nest (P = pollen provisions).
Figures 3-9 from: Aubert M, Müller A, Praz C (2024) A new osmiine bee with a spectacular geographic disjunction: Hoplitis (Hoplitis) onosmaevae sp. nov. (Hymenoptera, Anthophila, Megachilidae). Alpine Entomology 8: 65-79. https://doi.org/10.3897/alpento.8.118039
Figures 3-9 Hoplitis onosmaevae sp. nov., female (holotype). 3. Lateral view; 4. Head; 5. Clypeus and mandibles; 6. Metasoma, dorsal view; 7. Last sternum, ventral view; 8. Propodeum; 9. Inner spur of hind tibia, posterior view.
Supplementary material 1 from: Aubert M, Müller A, Praz C (2024) A new osmiine bee with a spectacular geographic disjunction: Hoplitis (Hoplitis) onosmaevae sp. nov. (Hymenoptera, Anthophila, Megachilidae). Alpine Entomology 8: 65-79. https://doi.org/10.3897/alpento.8.118039
Database for all specimens examined in this study
Figure 9 from: Brunke A, Solodovnikov A (2014) A revision of the Neotropical species of Bolitogyrus Chevrolat, a geographically disjunct lineage of Staphylinini (Coleoptera, Staphylinidae). ZooKeys 423: 1-113. https://doi.org/10.3897/zookeys.423.7536
Figure 9 - Hindwing: Bolitogyrus bechyneorum (Scheerpeltz) (A). Elytra, dorsal: Bolitogyrus fulgidus (Sharp) (B); Bolitogyrus bechyneorum (C); Bolitogyrus marquezi Brunke (D); Bolitogyrus newtoni Brunke (E); Bolitogyrus viridescens (F). Scale bars = 1 mm.
Figure 7 from: Brunke A, Solodovnikov A (2014) A revision of the Neotropical species of Bolitogyrus Chevrolat, a geographically disjunct lineage of Staphylinini (Coleoptera, Staphylinidae). ZooKeys 423: 1-113. https://doi.org/10.3897/zookeys.423.7536
Figure 7 - Pronotum, dorsal: Bolitogyrus pictus Smetana & Zheng (A); Bolitogyrus fulgidus (Sharp) (B); Bolitogyrus tortifolius Brunke (C); Bolitogyrus divisus Brunke (D). Pronotum, lateral: Bolitogyrus costaricensis (Wendeler), male (E), female (F); Bolitogyrus divisus, male (G), female (H). Scale bars = 1 mm.
Figure 6 from: Brunke A, Solodovnikov A (2014) A revision of the Neotropical species of Bolitogyrus Chevrolat, a geographically disjunct lineage of Staphylinini (Coleoptera, Staphylinidae). ZooKeys 423: 1-113. https://doi.org/10.3897/zookeys.423.7536
Figure 6 - Head, dorsal view: Bolitogyrus silex Brunke (A); Bolitogyrus costaricensis (Wendeler) (B); Bolitogyrus bullatus (Sharp) (C); Bolitogyrus apicofasciatus Brunke (D); Bolitogyrus ashei Brunke (E); Bolitogyrus strigifrons (Wendeler) (F); Bolitogyrus viridescens Brunke (G). a – central protuberance, b – posterior protuberance, c – posterior ocular puncture, d – oculomarginal punctures, e – anterior ocular puncture, f – medial frontoclypeal puncture. Scale bars = 1 mm (A–F), 0.5 mm (G).
Figure 4 from: Brunke A, Solodovnikov A (2014) A revision of the Neotropical species of Bolitogyrus Chevrolat, a geographically disjunct lineage of Staphylinini (Coleoptera, Staphylinidae). ZooKeys 423: 1-113. https://doi.org/10.3897/zookeys.423.7536
Figure 4 - Syntype of Quedius buphthalmus Erichson (BMNH): historical labels (A); specimen (B). Scale bars = 10 mm (A), 1 mm (B).
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.