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116 results for “sand dune”
FIGURE 4 in New record of the rare genus Crinalium Crow (Oscillatoriales, Cyanobacteria) from sand dunes of the Baltic Sea, Germany: epitypification and emendation of Crinalium magnum Fritsch et John based on an integrative approach
FIGURE 4. Staining of mucilage envelope of Crinalium magnum Hg-6-6. A–C. Staining with drawing ink showed difluent mucilage envelope. D–I. Staining with methylene blue showed striated structure of mucilage. E. Separate cells in lateral position with mucous microfibriles radiated from the cell wall. H, I Trichome in optical section (H) and in surface view (I) with increased portion showed mucous microfibrils arranged by rows along cross cell walls. Scale bars: 10 µm
FIGURE 2 in New record of the rare genus Crinalium Crow (Oscillatoriales, Cyanobacteria) from sand dunes of the Baltic Sea, Germany: epitypification and emendation of Crinalium magnum Fritsch et John based on an integrative approach
FIGURE 2. Secondary structure of the main informative helices of region 16S-23S ITS of cultured strains of Hormoscilla and Crinalium. All differences between strains are presented in comparison with authentic strain of H. pringsheimii (SAG 1407-1). Variable bases are shown with arrows, places of insertions/deletions of base pairs are marked with arrowheads, homological base pairs among different strains are indicated with dotted lines.
FIGURES 3–5. Archinamaqua gen. n in A new genus and species of Tentyriini (Coleoptera: Tenebrionidae) from sand dunes in Namaqualand, South Africa
FIGURES 3–5. Archinamaqua gen. n. lyleae sp. n., ventral view male (3), dorsal view head (4), aedeagus (5).
Laboratory investigation of hydrodynamic and sand dune morphology changes under wave overwash (Version 1)
<p>Lab datasets of the experiment</p>
FIGURE 9. A in An investigation of patch occupancy and dispersal by third to final instar nymphs of Brachytrupes megacephalus Lefèbvre, 1827 (Orthoptera: Gryllidae: Gryllinae) across the sand dune biotope at the Għadira Nature Reserve, Malta
FIGURE 9. A stridulating male at the mouth of its burrow. The wide mouth of the burrow serves as an 'acoustic chamber' for amplification (Photo: J.J. Borg).
FIGURE 8 in An investigation of patch occupancy and dispersal by third to final instar nymphs of Brachytrupes megacephalus Lefèbvre, 1827 (Orthoptera: Gryllidae: Gryllinae) across the sand dune biotope at the Għadira Nature Reserve, Malta
FIGURE 8. Correlation between atmospheric pressure and the count interval (difference in the count between successive, weekly observation periods) with trendlines for all points (grey) and when not considering the only outlier (blue).
FIGURE 1 in An investigation of patch occupancy and dispersal by third to final instar nymphs of Brachytrupes megacephalus Lefèbvre, 1827 (Orthoptera: Gryllidae: Gryllinae) across the sand dune biotope at the Għadira Nature Reserve, Malta
FIGURE 1. Aerial image of the area of study and its surrounding terrain (Source: Google Earth—imagery 23/5/2021).
FIGURE 6 in An investigation of patch occupancy and dispersal by third to final instar nymphs of Brachytrupes megacephalus Lefèbvre, 1827 (Orthoptera: Gryllidae: Gryllinae) across the sand dune biotope at the Għadira Nature Reserve, Malta
FIGURE 6. Sustained wind speed (main chart) and accompanying wind gusts (inset) are practically aligned, which indicates a quasi-constant wind during observation periods.
FIGURE 7. Humidity chart across observation periods with a range varying from 75 in An investigation of patch occupancy and dispersal by third to final instar nymphs of Brachytrupes megacephalus Lefèbvre, 1827 (Orthoptera: Gryllidae: Gryllinae) across the sand dune biotope at the Għadira Nature Reserve, Malta
FIGURE 7. Humidity chart across observation periods with a range varying from 75% to 94%. Notwithstanding the high level of humidity registered on some days, no precipitation was recorded during or immediately prior to field sessions.
FIGURE 3 in An investigation of patch occupancy and dispersal by third to final instar nymphs of Brachytrupes megacephalus Lefèbvre, 1827 (Orthoptera: Gryllidae: Gryllinae) across the sand dune biotope at the Għadira Nature Reserve, Malta
FIGURE 3. Abundance across the eleven weeks of field observations on the area of study and its immediate surroundings.
FIGURE 2 in An investigation of patch occupancy and dispersal by third to final instar nymphs of Brachytrupes megacephalus Lefèbvre, 1827 (Orthoptera: Gryllidae: Gryllinae) across the sand dune biotope at the Għadira Nature Reserve, Malta
FIGURE 2. The high concentration of individuals on the sand dune biotope patch devoid of trees demonstrates a preference for such habitat conditions (each orange dot represents a single sighting record).
Data from: The influence of contemporary and historic landscape features on the genetic structure of the sand dune endemic, Cirsium pitcheri (Asteraceae)
Open the record for dataset details and reuse information.
Relaxed predation selection on rare morphs of Ensatina salamanders (Caudata: Plethodontidae) promotes a polymorphic population in a novel dune sand habitat
<p>The Ensatina ring species represents a classic example of locally adapted lineages. The Monterey Ensatina (Ensatina eschscholtzii eschscholtzii) is a cryptic subspecies with brown coloration, however, a recently discovered polymorphic population within a wind-blown sand region also contains leucistic (pink) and xanthistic (orange) morphs. Leucism/xanthism frequency was mapped across the subspecies' range revealing that these morphs are generally rare or absent except within regions containing light-colored substrate. Attack rates were estimated using clay models of the three morphs, deployed only at the crepuscular period and during the night, on both light and dark substrates at a site within the dune sand region. Model selection found that the interaction between morph and substrate color best predicted attack rates. Typical morphs had equal attack rates on both substrates while xanthistic and leucistic morphs incurred significantly fewer attacks on light versus dark substrate, and there was no significant difference in attack rates among morphs on light substrates. These results support the idea that xanthistic and leucistic morphs are poorly adapted for dark substrates compared to typical morphs, but they are more or less equally adapted for light substrates. We suggest that this microgeographic island of relaxed selection on light-colored morphs helps explain the existence of this polymorphic population.</p>
FIGURE 2 in A new species of stag beetle from sand dunes in west Texas, and a synopsis of the genus Nicagus (Coleoptera: Lucanidae: Aesalinae: Nicagini)
FIGURE 2. Head and right antenna of N. occultus (ventral view) of: a) male and b) female.
FIGURE 1 in A new species of stag beetle from sand dunes in west Texas, and a synopsis of the genus Nicagus (Coleoptera: Lucanidae: Aesalinae: Nicagini)
FIGURE 1. Dorsal habitus of N. occultus: a) male and b) female.
FIGURE 3 in A new species of stag beetle from sand dunes in west Texas, and a synopsis of the genus Nicagus (Coleoptera: Lucanidae: Aesalinae: Nicagini)
FIGURE 3. Vestiture of pronotum (lateral view) in male a) N. occultus and b) N. obscurus.
FIGURE 4 in A new species of sun-spider from sand dunes in Coahuila, Mexico, (Arachnida: Solifugae: Eremobatidae)
FIGURE 4. Eremocosta arenarum sp. nov. Sternites X–XII of males showing ctenidia
FIGURE 7 in A new species of sun-spider from sand dunes in Coahuila, Mexico, (Arachnida: Solifugae: Eremobatidae)
FIGURE 7. Landscape in the type locality (Photograph by Kari J. McWest).
FIGURE 4 in A new species of Liolaemus from Añelo sand dunes, northern Patagonia, Neuquén, Argentina, and molecular phylogenetic relationships of the Liolaemus wiegmannii species group (Squamata, Iguania, Liolaemini)
FIGURE 4. General view of the type locality of Liolaemus cuyumhue.
FIGURE 6 in A new species of Liolaemus from Añelo sand dunes, northern Patagonia, Neuquén, Argentina, and molecular phylogenetic relationships of the Liolaemus wiegmannii species group (Squamata, Iguania, Liolaemini)
FIGURE 6. From top to bottom: Liolaemus cuyumhue, L. multimaculatus, and L. riojanus.
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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.