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2,556 results for “assemblages”
Figure 1 in The effects of environmental cues on chorusing onset in a tropical frog assemblage
Figure 1. Ambient light level at first call* by tropical frog species, Gamboa, Panama. Groupings A, B, C are based on results from Tukey's HSD test with similarly behaving species grouped together. Box plots represent quartile ranges for each species. *CF1 refers to onset of Craugaster fitzingeri, CF0 refers to cessation of calling by C. fitzingeri. DE – Dendropsophus ebraccatus, DD – Diasporus diastema, SB – S. boulengeri, DM – Dendropsophus microcephalus, RA – R. alata, BR – B. rosenbergi, PT – P. taeniatus, AC – Agalychnis callidryas.
Bold Park reptile species capture data for: Decadal abundance patterns in an isolated urban reptile assemblage: Monitoring under a changing climate
<p class="MsoNormal"><span>Fenced pitfall trapping in four sampling sites <span>representing different habitats and fire history</span> over the primary reptile activity period for 35 consecutive years with over 17000 individuals captured during 3300 days of sampling; the trapping regime was modified for the last 28 years.</span></p>
Data for taxon-dependent effects of dispersal limitation versus environmental filters on bryophyte assemblages―Multiple perspective studies in land-bridge islands
<p><strong><span>Aim</span></strong><span>: To explore the taxon-dependent contribution of dispersal limitation vs. environmental filters to bryophyte assemblages.</span></p> <p><strong><span>Location</span></strong><span>: The Thousand Island Lake, China </span></p> <p><strong><span>Taxon</span></strong><span>: Bryophytes</span></p> <p><strong><span>Methods</span></strong><span>: We compared the observed beta diversity with the expected values based on six null models (EE, EF, FE, FF, PE, PF) and detected the partial correlation of beta diversity with geographical distances. We quantified the contributions of spatial vs. environmental variables, and island isolation per se to species composition (SC) by using variance partitioning. We modeled the species-area relationships (SARs) for bryophytes and other eight biotas. To explore the taxon-dependent effects of spatial vs. environmental filters on bryophytes, sixteen taxa including five categories (total bryophytes, total mosses, liverworts, acrocarpous and pleurocarpous mosses) and eleven species-richest families were included in the analyses.</span></p> <p><strong><span>Results</span></strong><span>: The observed beta diversity values were significantly different from the predicted values based on the six null models for all 16 taxa. For all five categories, the observed partial correlations between beta diversity and geographical distance after controlling environmental effects were not only positive but also significantly different from the predicted values based on the null models. Spatial eigenvectors are more important in shaping SC than environmental variables for all 16 taxa except Brachytheciaceae and Anomodontaceae. Spatial eigenvectors contributed more to SC variation in liverworts than in mosses, and in pleurocarpous mosses than in acrocarpous mosses. The effects of island isolation on SC were significant for all five categories and varied </span><span>highly </span><span>at the family level. The z-values of the SARs for the five bryophyte categories were all larger than those of the other eight biotas.</span></p> <p><span><strong>Main</strong> <strong>conclusions</strong></span><span>: In subtropical fragmented forests, dispersal limitation exerted significant, taxon-dependent effects on bryophyte assemblages. It was dispersal limitation rather than environmental filtering that predominantly regulated SC patterns of bryophytes. </span></p>
Data from: Influence of abiotic and biotic factors on benthic marine community composition, structure and stability: a multidisciplinary approach to molluscan assemblages from the Miocene of northern Germany
<p><span>The Miocene mica-clay deposits of Groß Pampau (northern Germany) are well known for their diverse assemblages of marine mammals, particularly whales. Despite numerous systematic and biostratigraphic studies, an in-depth palaeoecological analysis of its diverse molluscan assemblages and a comprehensive palaeoenvironmental reconstruction are lacking. Here, we integrated new faunal, sedimentological, and geochemical data to reconstruct the marine palaeo-ecosystem of the late Miocene sedimentary succession of Groß Pampau, and to identify the drivers controlling the composition, ecological structure and temporal dynamics of its macrobenthic molluscan assemblages. Fossil evidence, coupled with analyses of clay mineral composition, grain size distribution, and geochemical data (total organic carbon, total nitrogen, δ<sup>13</sup>C, δ<sup>18</sup>O, δ<sup>15</sup>N of sediment and shells), suggest a warm-temperate, mesotrophic, low-energy, offshore marine setting mostly below storm wave base and a pronounced surface-to-bottom water temperature gradient. Low variability in sedimentological and geochemical signals indicates generally stable physico-chemical conditions, whereas occurrences of opportunistic species (<em>Varicorbula</em> <em>gibba</em>) point at </span><span>occasionally less favourable bottom conditions, possibly related to transient hypoxia</span><span>. Canonical correspondence analysis reveals that the distribution of molluscan assemblages correlates with total organic carbon and nitrogen content, suggesting organic matter availability at the seafloor as a controlling factor. A pattern of repetitive punctuated stasis of molluscan assemblages is defined by the temporal persistence in taxonomic and ecological composition, occasionally interrupted by shifts to a different faunal configuration. We suggest that both stable environmental conditions and biotic interactions, i.e. the top-down control exerted by carnivorous gastropods and environmental modification by ubiquitous burrowing deposit feeders, probably contributed to the observed temporal stability. Whereas comparison with Miocene molluscan assemblages of Gram, Denmark, revealed differences in the presence and relative abundance of genera, functional congruence indicates that offshore benthic ecosystems of the southern North Sea Basin functioned similarly.</span></p>
FIGURE 8 in Assemblages of Trichoptera larvae on water moss in the middle reaches of the Yenisei River (Siberia, Russia)
FIGURE 8. Larva and case of Potamophylax latipennis Curtis 1834. 8A, habitus, dorsal; 8B, head, right lateral (dashed circle indicating the absence of light-colored spots behind the eyes); 8C, metanotum, dorsal view (dotted oval: sclerites); 8D, abdominal segment I, ventral (dashed oval: setae); 8E, abdominal segment IX, left lateral (dotted area: lateral setae); 8F, left hind leg, posterior face (arrow: primary seta); 8G, case, right lateral. Scale bars 8A = 2mm; 8B–8F = 1 mm; 8G = 2 cm.
FIGURE 1 in Assemblages of Trichoptera larvae on water moss in the middle reaches of the Yenisei River (Siberia, Russia)
FIGURE 1. Map of the stretch of the Yenisei River with indicated water moss sampling sites: Site 1/1, Site 2/1, Site 2/2, Site 3/1. Drawn based on satellite maps taken from Google Maps.
FIGURE 7 in Assemblages of Trichoptera larvae on water moss in the middle reaches of the Yenisei River (Siberia, Russia)
FIGURE 7. Larva and case of Limnephilus politus McLachlan 1865. 7A, habitus, dorsal; 7B, anterior abdominal segments, ventral (dotted area: triple-filament gills); 7C, thoracic nota, dorsal (scale bar = 1 mm); 7D, 7E, Middle and hind legs, respectively, posterior faces (dashed oval: secondary setae); 7F, cases, right lateral and anterior. Scale bars 7A = 5 mm, 7B = 2 mm; 7C–7E = 1 mm; 7F = 2 cm.
FIGURE 3 in Assemblages of Trichoptera larvae on water moss in the middle reaches of the Yenisei River (Siberia, Russia)
FIGURE 3. Larva and cases of Anabolia servata McLachlan 1880. 3A, habitus, dorsal; 3B, head, pronotum, mesonotum, dorsal; 3C, right hind leg, anterior face (arrow: primary seta, dotted oval: secondary setae); 3D, right midleg with trochanter, anterior face (arrow: primary seta, dotted oval: secondary setae); 3E, 3F, cases. Scale bars 3A–3C = 1 mm; 3D = 0.5 mm, 3E, 3F = 2 cm.
FIGURE 10 in Assemblages of Trichoptera larvae on water moss in the middle reaches of the Yenisei River (Siberia, Russia)
FIGURE 10. Larva and case of Brachycentrus subnubilis Curtis 1834. 10A, habitus, dorsal; 10B, right middle (top) and hind (bottom) legs, anterior faces (arrows: secondary setae); 10C, cases, right lateral; 10D, case, right lateral face and edge of the tetrahedral conic case structure. Scale bars 10A, 10C, 10D = 3 mm; 10B = 1 mm.
FIGURE 9 in Assemblages of Trichoptera larvae on water moss in the middle reaches of the Yenisei River (Siberia, Russia)
FIGURE 9. Larva and case of Apatania crymophila McLachlan 1880. 9A, habitus, dorsal; 9B, head, right lateral; 9C, head, ventral; 9D, cases, right lateral and ventral; 9E, case with large mineral particles along lateral lines, dorsal. Scale bars 9A–9C = 1 mm; 9D, 9E = 3 mm.
FIGURE 6 in Assemblages of Trichoptera larvae on water moss in the middle reaches of the Yenisei River (Siberia, Russia)
FIGURE 6. Larva and case of Chaetopteryx sahlbergi McLachlan 1876. 6A, habitus, dorsal; 6B, abdominal segment I, left lateral, dorsal, and right lateral; 6C, anterior abdominal segments, left lateral (dotted areas: single-filament gills); 6D, metanotum, dorsal (dotted oval: anteromesal sclerites); 6E, abdominal segment IX, ventral (dotted circles: setae); 6F, 6G right middle and hind legs, respectively, posterior faces (arrows: primary setae); 6H, case, right lateral. Scale bars 6A = 2 mm; 6B–6G = 1 mm; 6H = 1 cm.
FIGURE 5 in Assemblages of Trichoptera larvae on water moss in the middle reaches of the Yenisei River (Siberia, Russia)
FIGURE 5. Larva and case of Hydatophylax nigrovittatus McLachlan 1872. 5A, habitus, dorsal; 5B, abdominal segments I and II, dorsal (arrows: single-filament gills); 5C, meso- and metanota, dorsal; 5D, cases, right lateral. Scale bars 5A, 5C = 3 mm; 5B = 1 mm; 5D = 2 cm.
Figure 15 in The earliest-diverging avemetatarsalian: a new osteoderm- bearing taxon from the Triassic (?Earliest Late Triassic) of Madagascar and the composition of avemetatarsalian assemblages prior to the radiation of dinosaurs
Figure 15. Anterior caudal vertebra referred to Mambachiton fiandohana (FMNH PR 5065) in less lateral (A), right lateral (B), anterior (C), posterior (D), dorsal (E), and ventral (F) views. Arrows indicate anterior direction. Scale bars = 1 cm. Abbreviations: ns, neural spine; pre, prezygapophysis; poz, postzygapophysis; tp, transverse process.
Figure 8 in The earliest-diverging avemetatarsalian: a new osteoderm- bearing taxon from the Triassic (?Earliest Late Triassic) of Madagascar and the composition of avemetatarsalian assemblages prior to the radiation of dinosaurs
Figure 8. Middle to posterior cervical vertebrae of the holotype of Mambachiton fiandohana (UA 8-25-97-132). Fissh persevered cervical vertebra in less lateral (A), right lateral (B), anterior (C), posterior (D), ventral (E), and dorsal (F) views. Seventh preserved cervical vertebra in less lateral (G), right lateral (H), anterior (I), posterior (J), ventral (K), and dorsal (L) views. Colours of the vertebrae correspond to those in Figures 3–6. Arrows indicate anterior direction. Scale bars = 1 cm. Abbreviations: dia, diapophysis; ns, neural spine; par, parapophysis; pre, prezygapophysis; poz, postzygapophysis.
Figure 16 in The earliest-diverging avemetatarsalian: a new osteoderm- bearing taxon from the Triassic (?Earliest Late Triassic) of Madagascar and the composition of avemetatarsalian assemblages prior to the radiation of dinosaurs
Figure 16. Scapulocoracoids referred to Mambachiton fiandohana (FMNH PR 5065). Right scapulocoracoid (FMNH PR 5065, collected as field number 9-7-03-788) in lateral (A), ventrolateral (B), posterior (C), and medial (D) views. Less scapulocoracoid (FMNH PR 5065, collected as field number 9-1-98-395) in lateral (E), ventrolateral (F), posterior (G), and medial (H) views. Arrows indicate anterior direction. Scale bars = 1 cm. Abbreviations: acp, acromion process; cf, coracoid foramen; co, coracoid; gl, glenoid; sc, scapula; tu, tuber.
Figure 19 in The earliest-diverging avemetatarsalian: a new osteoderm- bearing taxon from the Triassic (?Earliest Late Triassic) of Madagascar and the composition of avemetatarsalian assemblages prior to the radiation of dinosaurs
Figure 19. Dinosauriform remains from the type locality of Mambachiton fiandohana ('M-13') (C–K) and another contemporaneous 'basal Isalo II'/Makay Formation locality with a similar fauna (A, B). Less maxilla fragment (FMNH PR 5068) in lateral (A) and medial (B) views. Smaller less tibia (FMNH PR 5066) in proximal (C), distal (D), lateral (E), and medial (F) views. Larger less tibia (UA-8-24-98-199) in anterior (G), medial (H), posterior (I), and lateral (J), and distal views. Arrow indicates anterior direction. Scales = 1 cm. Abbreviations: a., articulates with; aas, ascending process of the astragalus; anf, antorbital fenestra; anfo, antorbital fossa; cc, cnemial crest; g, groove; lc, lateral condyle; lp, lateral process; mc, medial condyle; pp, palatal process; t, tooth.
Figure 5 in The earliest-diverging avemetatarsalian: a new osteoderm- bearing taxon from the Triassic (?Earliest Late Triassic) of Madagascar and the composition of avemetatarsalian assemblages prior to the radiation of dinosaurs
Figure 5. Articulated cervical vertebra and osteoderm series of Mambachiton fiandohana (UA 8-25-97-132) in dorsal view as a photograph (A), line drawing (B), and CT rendering model with the osteoderms and matrix removed (C). Grey shading (B) indicates sandstone matrix. Arrow indicates anterior direction. Scale bar = 5 cm. Abbreviations: 1st, first preserved cervical vertebra; 7th, seventh preserved cervical vertebra; cr, cervical rib; os, osteoderms.
Figure 3 in The earliest-diverging avemetatarsalian: a new osteoderm- bearing taxon from the Triassic (?Earliest Late Triassic) of Madagascar and the composition of avemetatarsalian assemblages prior to the radiation of dinosaurs
Figure 3. Articulated cervical vertebra and osteoderm series of Mambachiton fiandohana (UA 8-25-97-132) in right lateral view as a photograph (A), line drawing (B), and CT rendering model with the osteoderms and matrix removed (C). Grey shading in (B) indicates sandstone matrix. Arrow indicates anterior direction. Scale bar = 5 cm. Abbreviations: 1st, first preserved cervical vertebra; 7th, seventh preserved cervical vertebra; cr, cervical rib; os, osteoderms.
Figure 6 in The earliest-diverging avemetatarsalian: a new osteoderm- bearing taxon from the Triassic (?Earliest Late Triassic) of Madagascar and the composition of avemetatarsalian assemblages prior to the radiation of dinosaurs
Figure 6. Articulated cervical vertebra and osteoderm series of Mambachiton fiandohana (UA 8-25-97-132) in ventral view as a photograph (A), line drawing (B), and CT rendering model with the osteoderms and matrix removed (C). Grey shading in (B) indicates sandstone matrix. Arrow indicates anterior direction. Scale bar = 5 cm. Abbreviations: 1st, first preserved cervical vertebra; 7th, seventh preserved cervical vertebra; cr, cervical rib; os, osteoderms.
Figure 2 in The earliest-diverging avemetatarsalian: a new osteoderm- bearing taxon from the Triassic (?Earliest Late Triassic) of Madagascar and the composition of avemetatarsalian assemblages prior to the radiation of dinosaurs
Figure 2. Right postfrontal of the holotype of Mambachiton fiandohana (UA 8-25-97-132) in dorsal (A) and ventral (B) views. Arrow indicates anterior direction. Scale bar = 1 cm. Abbreviations: a., articulates with; fr, frontal; om, orbit margin; pa, parietal; stf, supratemporal fossa.
ScienceDex guides
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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.