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398 results for “morphotype”
Raw coordinates of 3D landmarks related to the article 'A new zooarchaeological application for geometric morphometric methods: Distinguishing Ovis aries morphotypes to address connectivity and mobility of prehistoric Central Asian pastoralists' by Haruda et al.
<p>Raw coordinates from 3D landmarks of <em>Ovis aries </em>astragali. These bones originate from Final Bronze Age archaeological contexts from central and southeastern Kazakhstan. These relate to the article 'A new zooarchaeological application for geometric morphometric methods: Distinguishing <em>Ovis aries</em> morphotypes to address connectivity and mobility of prehistoric Central Asian pastoralists' by Haruda et al. </p>
Fig. 1 in Isotopic discrimination and persistence of the C marker in adults of Anastrepha fraterculus (Diptera: Tephritidae) Brazilian-1 morphotype
Fig. 1. Schematic view of the diet switching experiments.
FIG. 6 in Populations of a new morphotype of corrugate Lessonia Bory in the Beagle Channel, sub-Antarctic Magellanic ecoregion: a possible case of on-going speciation
FIG. 6. — MJ network of ITS1 haplotypes of Magellanic Lessonia Bory, spp. individuals.
Mandibular characteristics of early Glires (Mammalia) reveal mixed rodent and lagomorph morphotypes
<p>Glires (rodents, lagomorphs and their fossil kin) is the most speciose and arguably most diversified clade of living placentals. Different lineages within the Glires evolved basically opposite chewing movements: a mostly transversal power stroke in lagomorphs, and a mostly proal power stroke in rodents, but the ancestral condition for Glires is as yet unclear. To address on this knowledge gap, we studied the mandibles of Paleocene Glires from China representing the duplicidentate (lagomorph-like; <em>Mimotona</em>) and simplicidentate (rodent-like; <em>Eomylus</em> and <em>Heomys</em>) lineages. To assess the mechanical resistance of mandibles to bending and torsion, we calculated the section modulus. The dentaries differ in depth, curvature of the ventral margin, the bending of the dental row and the region where the maximum grinding force was likely applied. In general, the early Paleocene <em>Mimotona</em> <em>lii</em> and the middle Paleocene <em>Mimotona</em> <em>robusta</em> and <em>Heomys</em> <em>orientalis</em> all show a pattern of increasing strength moving distally along the mandible, similar to sciurids and the mountain beaver. In contrast, the late Paleocene <em>Eomylus</em> sp. had a mandible that was strongest in the region of m1, a pattern seen in lagomorphs and also the stem placental <em>Zofialestes</em>. Our results indicate the early diversification of mandible structure of Glires, demonstrate a mixture of duplicidentate and simplicidentate characters among the basal Glires and suggest an early occurrence of a lagomorph-like morphotype.</p>
FIGURE 7 in Multigene phylogeny reveals the ribbed shell morphotypes in the land snail genus Sarika (Eupulmonata: Ariophantidae), with description of two new species from Thailand and Myanmar
FIGURE 7 Shell and body variation in Sarika siamensis.
Mandibular characteristics of early Glires (Mammalia) reveal mixed rodent and lagomorph morphotypes
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Biogeographic distribution and divergent assembly process of cyanobacterial morphotypes in biocrusts across northwestern China
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Data from: Mechanical morphotype switching as an adaptive response in Mycobacteria
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Prey morphotype and abundance controls plastid retention and bloom dynamics for a mixotrophic dinoflagellate
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Environmental predictors and invertebrate morphotypes in caves of Iuiú, Bahia, Brazil
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Data from: Novel track morphotypes from new tracksites indicate increased Middle Jurassic dinosaur diversity on the Isle of Skye Scotland
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Data from: The impact of personality, morphotype and shore-height on temperature-mediated behavioural responses in the beadlet anemone (Actinia equina)
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Data from: Sauropod tooth morphotypes from the Upper Jurassic of the Lusitanian Basin (Portugal)
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Algal Species, Morphotype Descriptions
As part of the Long Term Ecological Research (LTER) project in the McMurdo Dry Valleys of Antarctica, a systematic sampling program has been undertaken to monitor the abundance and species distribution of algal mats in glacial meltwater streams of the region. This table contains descriptions of the morphotypes found for algal species belonging to the family Oscillatoriaceae. Morphotypes were based on physical characteristics.
Dark septate endophytes and arbuscular mycorrhizal fungi (Paris-morphotype) affect the stable isotope composition of 'classically' non-mycorrhizal plants
<p>The vast majority of terrestrial plants exchange nutrients with fungal partners forming different mycorrhizal types. The minority of plants considered as non-mycorrhizal, however, are not necessarily free of any fungi, but are frequently colonized by elusive fungal endophytes, such as <i>dark septate endophytes</i> (<i>DSE</i>) or <i>fine root endophytes</i> (<i>FRE</i>). While a functional role of <i>FRE</i> in improvement of nutrient gain was recently elucidated, the function of <i>DSE</i> is still in discussion and was here addressed for 36 plant species belonging to the families Equisetaceae, Cypereaceae and Caryophyllaceae.</p> <p>Molecular and microscopic staining approaches were conducted to verify the presence of <i>DSE</i> in the investigated species. Stable isotope natural abundances of the elements carbon, nitrogen, hydrogen and oxygen and total nitrogen concentrations were analyzed for the respective species of the target plant families and accompanying mycorrhizal and non-mycorrhizal (Brassicaceae) plant species.</p> <p>Staining approaches confirmed the presence of <i>DSE</i> in all investigated species within the families Equisetaceae, Cyperaceae and Caryophyllaceae. A co-colonization with <i>Paris</i>-type arbuscular mycorrhiza (AM) was occasionally found by staining and molecular approaches in species of the Equisetaceae. Species of the Equisetaceae, Cyperaceae and Caryophyllaceae were significantly <sup>15</sup>N-enriched in comparison to accompanying plants. In addition, a significant <sup>13</sup>C and <sup>2</sup>H enrichment and increased total nitrogen concentrations were found for representatives of the Equisetaceae.</p> <p>The <sup>15</sup>N-enrichment found here for representatives of Equisetaceae, Cyperaceae and Caryophyllaceae provides evidence for a functional role of the ubiquitous <i>DSE</i> fungi. <i>DSE</i> fungi obviously provide access to <sup>15</sup>N-enriched soil organic compounds probably in exchange for organic carbon compounds from plant photosynthesis. As indicated by additional <sup>13</sup>C- and <sup>2</sup>H-enrichments, representatives of the Equisetaceae apparently gain simultaneously organic carbon compounds from their AM fungi of the <i>Paris</i>-morphotype. Thus, species of the Equisetaceae have to be considered as partially, or in case of the achlorophyllous fertile Equisetum arvense, as fully mycoheterotrophic at least in some stages of their life cycle.</p> <p>So far mostly underappreciated fungi classified as <i>DSE</i> are suggested to occupy an ecologically relevant role similar to mycorrhizae and the occurrence of simultaneous functions of <i>DSE</i> and AM fungi in Equisetaceae is proposed.</p>
FIGURE 10. Hydropsyche lobata McLachlan 1884, morphotype 1. 10A in Larval Taxonomy and Distribution of Genus Hydropsyche (Trichoptera: Hydropsychidae) in Northwestern Algeria
FIGURE 10. Hydropsyche lobata McLachlan 1884, morphotype 1. 10A, head and thorax, dorsal; 10B, cephalic capsule, dorsal; 10C, cephalic capsule, ventral; 10D, posterior prosternites, ventral. [scale bar = 1 mm].
FIGURE 11. Hydropsyche lobata McLachlan 1884, morphotype 2. 11A in Larval Taxonomy and Distribution of Genus Hydropsyche (Trichoptera: Hydropsychidae) in Northwestern Algeria
FIGURE 11. Hydropsyche lobata McLachlan 1884, morphotype 2. 11A, head and thorax dorsal; 11B, cephalic capsule, dorsal; 11C, cephalic capsule, ventral; 11D, posterior prosternites ventral. [scale bar = 1 mm].
Data from: Persistence of distinctive morphotypes in the native range of the CITES-listed Aldabra giant tortoise
Understanding the extent of morphological variation in the wild population of Aldabra giant tortoises is important for conservation, as morphological variation in captive populations has been interpreted as evidence for lingering genes from extinct tortoise lineages. If true, this could impact reintroduction programmes in the region. The population of giant tortoises on Aldabra Atoll is subdivided and distributed around several islands. Although pronounced morphological variation was recorded in the late 1960s, it was thought to be a temporary phenomenon. Early researchers also raised concerns over the future of the population, which was perceived to have exceeded its carrying capacity. We analyzed monthly monitoring data from 12 transects spanning a recent 15-year period (1998–2012) during which animals from four subpopulations were counted, measured, and sexed. In addition, we analyzed survival data from individuals first tagged during the early 1970s. The population is stable with no sign of significant decline. Subpopulations differ in density, but these differences are mostly due to differences in the prevailing vegetation type. However, subpopulations differ greatly in both the size of animals and the degree of sexual dimorphism. Comparisons with historical data reveal that phenotypic differences among the subpopulations of tortoises on Aldabra have been apparent for the last 50 years with no sign of diminishing. We conclude that the giant tortoise population on Aldabra is subject to varying ecological selection pressures, giving rise to stable morphotypes in discrete subpopulations. We suggest therefore that (1) the presence of morphological differences among captive Aldabra tortoises does not alone provide convincing evidence of genes from other extinct species; and (2) Aldabra serves as an important example of how conservation and management in situ can add to the scientific value of populations and perhaps enable them to better adapt to future ecological pressures.
Data from: Proboscis profiler: a tool for detecting acanthocephalan morphotypes
Molecular studies conducted over the past 25 years have revealed previously unrecognised diversity in the phylum Acanthocephala. Several nominal species have been shown to represent complexes of morphologically cryptic biological species, a situation potentially confounding the analysis of ecological data. A software tool, 'Proboscis profiler', was developed to detect morphological heterogeneity in collections of superficially similar acanthocephalan worms based on the multivariate statistical analysis of proboscis hook dimensions. Proboscis profiler identifies objective, natural groups in a collection of acanthocephalans which may correspond to distinct biological species or populations. Initial trials demonstrate that Proboscis profiler can discriminate biological acanthocephalan species of the Echinorhynchus gadi Zoega in Müller, 1776 complex and differentiate between dorsal and ventral hook rows from the proboscis of E. salmonis Müller, 1784. Proboscis profiler is free software and can be downloaded from http://acanthocephala.sourceforge.net.
FIGURE 4. Tennysonia stellata Busk, 1867, colony morphotypes with A in Phylogenetic position and systematics of the bryozoan Tennysonia: further evidence for convergence and plasticity in skeletal morphology among cyclostome bryozoans
FIGURE 4. Tennysonia stellata Busk, 1867, colony morphotypes with A, narrow branches, (SAM A28765) and B, broad branches (SAM A28766). RIY Bank, Port Elizabeth. Scale bars 10 mm.
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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.