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1,777 results for “under bark”
Data from: Geosmithia associated with bark beetles and woodborers in the western USA: taxonomic diversity and vector specificity
Fungi in the genus Geosmithia (Ascomycota: Hypocreales) are frequent associates of bark beetles and woodborers that colonize hardwood and coniferous trees. One species, Geosmithia morbida, is an economically damaging invasive species. The authors surveyed the Geosmithia species of California and Colorado, USA, to (i) provide baseline data on taxonomy of Geosmithia and beetle vector specificity across the western USA; (ii) investigate the subcortical beetle fauna for alternative vectors of the invasive G. morbida; and (iii) interpret the community composition of this region within the emerging global biogeography of Geosmithia. Geosmithia was detected in 87% of 126 beetle samples obtained from 39 plant species. Twenty-nine species of Geosmithia were distinguished, of which 13 may be new species. Bark beetles from hardwoods, Cupressus, and Sequoia appear to be regular vectors, with Geosmithia present in all beetle gallery systems examined. Other subcortical insects appear to vector Geosmithia at lower frequencies. Overall, most Geosmithia have a distinct level of vector specificity (mostly high, sometimes low) enabling their separation to generalists and specialists. Plant pathogenic Geosmithia morbida was not found in association with any other beetle besides Pityophthorus juglandis. However, four additional Geosmithia species were found in P. juglandis galleries. When integrated with recent data from other continents, a global pattern of Geosmithia distribution across continents, latitudes, and vectors is emerging: of the 29 Geosmithia species found in the western USA, 12 have not been reported outside of the USA. The most frequently encountered species with the widest global distribution also had the broadest range of beetle vectors. Several Geosmithia spp. with very narrow vector ranges in Europe exhibited the similar degree of specialization in the USA. Such strong canalization in association could reflect an ancient origin of each individual association, or a recent origin and a subsequent diversification in North America.
Mossy Tree Bark Texture
4K Pixel PNG Texture. PBR:BaseColor, Metalness, Roughness, Normalmap and Height. Source: Objaverse 1.0 / Sketchfab
Suolatölkki, Salt Birch Bark Jar (SU4816:223)
Tuohesta punottu suolatölkki Vologdan kuvernementin alueelta Pohjois-Venäjältä 1900-luvun alusta. Salt container woven from birch bark, from the Vologda Oblast area in Northern Russia in the early 20th century. Flätad saltburk av näver från Vologda guvernement i Norra Ryssland. Från tidigt 1900-tal. Suomalais-ugrilaiset kokoelmat, Suomen kansallismuseo Finno-Ugric collections, The National Museum of Finland Finsk-ugriska samlingar, Nationalmuseum Source: Objaverse 1.0 / Sketchfab
Ancient insect vision tuned for flight amongst rocks and plants underpins natural flower colour diversity - rock, mineral, stick, bark, leaf, bird- and insect-flower petal reflectance spectra
<p>Understanding the origins of flower colour signalling to pollinators is fundamental to evolutionary biology and ecology. Flower colour evolves under pressure from visual systems of pollinators, like birds and insects, to establish global signatures among flowers with similar pollinators. However, an understanding of the ancient origins of this relationship remains elusive. Here, we employ computer simulations to generate artificial flower backgrounds assembled from real material sample spectra of rocks, leaves, and dead plant materials, against which to test flowers' visibility to birds and bees. Our results indicate how flower colours differ from their backgrounds in strength, and the distributions of salient reflectance features when perceived by these key pollinators, to reveal the possible origins of their colours. Since Hymenopteran visual perception evolved before flowers, the terrestrial chromatic context for its evolution to facilitate flight and orientation consisted of rocks, leaves, sticks, and bark. Flowers exploited these pre-evolved visual capacities of their visitors, and in response evolved chromatic features to signal to bees, and differently to birds, against a backdrop of other natural materials. Consequently, it appears that today's flower colours may be an evolutionary response to the vision of diurnal pollinators navigating their world millennia prior to the first flowers.</p>
Fig. 3 in New cylindrical bark and ironclad beetles (Coleoptera: Zopheridae) from Baltic amber
Fig. 3. Bitoma glaesisepulta sp. nov. Habitus.: a) Lateral view; b) Ventral view; c) Dorsal view
Fig. 4 in New cylindrical bark and ironclad beetles (Coleoptera: Zopheridae) from Baltic amber
Fig. 4. Bitoma glaesisepulta sp. nov. Dorsal habitus, reconstruction
Fig. 2 in New cylindrical bark and ironclad beetles (Coleoptera: Zopheridae) from Baltic amber
Fig. 2. Pycnomerus simukovi sp. nov. Dorsal habitus, reconstruction
Fig. 1 in New cylindrical bark and ironclad beetles (Coleoptera: Zopheridae) from Baltic amber
Fig. 1. Pycnomerus simukovi sp. nov. Habitus.: a) Dorsal view; b) Ventral view; c) Lateral view.
Group bark feeding in blue-and-yellow macaws (Ara ararauna)
<p>Blue-and-yellow macaws (Ara ararauna) feeding collectively on the bark of a dead tree along the Río Napo in the Orellana province, Ecuador (0°27' S, 76°12' W).</p>
Celtis (Cannabaceae) - bark - of a large tree
Image of Celtis (Cannabaceae) - bark - of a large tree
Quercus alba (Fagaceae) - bark - of a large tree
Image of Quercus alba (Fagaceae) - bark - of a large tree
Celtis (Cannabaceae) - bark - of a large tree
Image of Celtis (Cannabaceae) - bark - of a large tree
Quercus palustris (Fagaceae) - bark - of a large tree
Image of Quercus palustris (Fagaceae) - bark - of a large tree
Quercus muehlenbergii (Fagaceae) - bark - of a large tree
Image of Quercus muehlenbergii (Fagaceae) - bark - of a large tree
Quercus michauxii (Fagaceae) - bark - of a large tree
Image of Quercus michauxii (Fagaceae) - bark - of a large tree
Acer saccharum (Aceraceae) - bark - of a large tree
Image of Acer saccharum (Aceraceae) - bark - of a large tree
Quercus alba (Fagaceae) - bark - of a large tree
Image of Quercus alba (Fagaceae) - bark - of a large tree
Acer saccharum (Aceraceae) - bark - of a large tree
Image of Acer saccharum (Aceraceae) - bark - of a large tree
Quercus alba (Fagaceae) - bark - of a large tree
Image of Quercus alba (Fagaceae) - bark - of a large tree
Quercus alba (Fagaceae) - bark - of a large tree
Image of Quercus alba (Fagaceae) - bark - of a large tree
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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.