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382 results for “Dune”
Patterns of island fox habitat use in sand dune habitat on San Clemente Island
<p>On San Clemente Island (SCI), the island fox subspecies (<em>Urocyon littoralis</em><em> clementae</em>) has been monitored annually since 1988 to track long-term population trends. Annual density estimates in most habitat types across the island range from 2–13 foxes/km<sup>2</sup>, yet unusually high estimates have repeatedly approached 50 foxes/km<sup>2 </sup>in a unique sand dune habitat area. Although sand dune habitat is restricted to one small area on the island, these estimates suggest sand dune habitat supports one of the highest population densities of any fox species in the world, and it may support > 5% of the SCI fox population. This finding prompted our investigation to determine if SCI foxes captured in the sand dunes habitat area maintained home ranges within this habitat type. Between January–July 2018, we used Global Positioning System collars to track the movements of 12 island foxes captured in the sand dune habitat area. Contrary to our initial predictions, we found that island foxes captured in the sand dune habitat area do maintain home ranges and core areas centralized in sand dune habitat. All 12 island fox home ranges estimated contained >50% sand dune habitat in either their 50% or 95% fixed kernel density estimate (KDE) home range, and island foxes were 3.14 times more likely to use active sand dune habitat when compared to the second most abundant habitat type, maritime desert scrub (Adjusted = 3.14, 95% CI = 3.07–3.12). We also found that island foxes in sand dune habitat maintained much smaller home ranges than reported estimates in other habitat types, with an average 95% KDE home range size of 0.42 km<sup>2</sup> (95% CI = 0.20–0.63 km<sup>2</sup>). Although sand dune habitat comprises just 2% of available habitat on SCI, our research highlights the importance of this unique habitat area for island foxes.</p>
Figure 1. A in Structural and diversity changes in coastal dunes from the Mexican Caribbean: the case of the invasive Australian pine (Casuarina equisetifolia)
Figure 1. A) Location of Cozumel Island within the Yucatán Peninsula. B) Study area on the north side of Cozumel Island. C) The distribution of Casuarina equisetifolia, shown as dark gray polygons and the sampling plots (numbered circles). Plots 1, 6–9 are the invaded, while plots 2–5, 10 are non-invaded.
Figure 3 in Structural and diversity changes in coastal dunes from the Mexican Caribbean: the case of the invasive Australian pine (Casuarina equisetifolia)
Figure 3. Grouping of invaded (triangles) and non-invaded (squares) sampling plots according to their species composition similarity (PERMANOVA). The numbers close to the symbols are the assigned sampling plot number. The dotted lines represent the scores' standard deviation of each group. The solid black lines represent the distance (similarity) between sampling plots.
Fig. 2 in Preliminary assessment of trampling effects on soil-dwelling insects in coastal dunes of El Saladar, southeastern Spain.
Fig. 2.- Soil and vegetation conditions at El Saladar dunes (Alicante, Spain). a.- Yellow dune (YD) crossed by pedestrian path (YDt). b.- Grey dune (GD) crossed by pedestrian path (GDt). Fig. 2.- Condiciones de suelo y vegetación en las dunas de El Saladar (Alicante, España). a.- Duna móvil (YD) cruzada por un camino peatonal (YDt). b.- Duna fija (GD) cruzada por un camino peatonal (GDt).
Fig. 3. Female genitalia. A. Noduliferola abstrusa Kuznetzov, 1973. B. Maliarpha borealis Sasaki, 2012. C. Ectoblemma rosella Sugi, 1982 in New records of five species of Lepidoptera (Cosmopterigidae, Tortricidae, Pyralidae and Erebidae) from sand-dunes along the western coastline of Korea
Fig. 3. Female genitalia. A. Noduliferola abstrusa Kuznetzov, 1973. B. Maliarpha borealis Sasaki, 2012. C. Ectoblemma rosella Sugi, 1982.
Fig. 1. Adult habitus. A. Cosmopterix flavidella Kuroko, 2011, male. B. Noduliferola abstrusa Kuznetzov, 1973, female. C. Maliarpha borealis Sasaki, 2012, male. D. Ectoblemma rosella Sugi, 1982, female. E in New records of five species of Lepidoptera (Cosmopterigidae, Tortricidae, Pyralidae and Erebidae) from sand-dunes along the western coastline of Korea
Fig. 1. Adult habitus. A. Cosmopterix flavidella Kuroko, 2011, male. B. Noduliferola abstrusa Kuznetzov, 1973, female. C. Maliarpha borealis Sasaki, 2012, male. D. Ectoblemma rosella Sugi, 1982, female. E. Metachrostis miasma (Hampson, 1891), male. Scale bars = 4 mm.
Dune Overwash and Breaching data set produced at the CIEM flume, Hydralab III
<p>The data set here presented helps to to improve the understanding of dune overwash and breaching processes during storm surges in nearly prototype scale. The experiments were done at the CIEM wave flume at UPC, Barcelona, as part of Hydralab III. The large scale movable-bed hydraulic experiments measure hydrodynamics and sediment processes involved in onshore and offshore sediment transport, dune breaching and overwash.</p> <p>Due to its size, the data set can not be placed on this repository and will be provided on demand. Please contact with the authors or with the data manager of the CIEM installation.</p> <p>More information can be found on the published papers:</p> <p>D'Alessandro, F.; Tomasicchio, R.; Alsina, J.; Caceres, I.; Fortes, C.J.E.M.; Ilic, S.; James, M.; Nagler, L.; Pinheiro, L.V.; Sanchez-Arcilla, A.; Sancho, F.; Shaw, E.; Schüttrumpf, H., 2010. Dune over wash and breaching, Coastlab 2010, Barcelona, Spain.</p> <p> </p>
dune-ax1 Simulation Data
<p>Simulation data generated with the Dune model <a href="https://github.com/pederpansen/dune-ax1">dune-ax1</a>. Currently, there is data on which my <a href="http://dx.doi.org/10.1016/j.bpj.2013.05.041">2013 Biophysical Journal paper</a> is based on.</p> <p>Structure:</p> <p>The simulation data contains a main folder with mostly gnuplot data files and some debug/diagnostics information. The subfolder 'hdf5' contains values of alle the unknowns as well as domain information for each time step.</p> <p>Contact:</p> <p>If you have questions or if you are interested in data from different simulation setups, please contact me on Github: https://github.com/pederpansen/dune-ax1.</p>
Fig. 1 in Beetles (Coleoptera) from seaside beach and dunes in the regions of Świnoujście, Międzyzdroje and Wisełka (Poland) located along the southern coast of the Baltic Sea
Fig. 1. The examined seaside beach and dunes in the regions of Świnoujście, Międzyzdroje and Wisełka.
Рис. 1. Пункты сбора Staphylinidae на острове Беринга и острове Топорков. 1 – с. НикоΛьское; 2 – окрестности с. НикоΛьское, мыс ВхоΑной Риф; 3–4 – берег и пойма р. Гаванская; 5 – песчаные Αюны межΑу с. НикоΛьским и р. ΑоΑыгинская; 6 – окрестности Северо-ЗапаΑного Λежбища; 7 – Северное Λежбище; 8–9 – окрестности корΑона в бухте Старая Гавань; 10 – бухта Буян и пойма р. Буян; 11 – бухта ПоΛуΑенная, 12 – бухта ПоΑутесная; 13 – о. Топорков; 14 – окрестности аэропорта и поймы р. Каменка; 15 – бухта КоманΑор. Fig. 1. Localities of Staphylinidae on Bering and Toporkov islands. 1 – Nikolskoe vill.; 2 – vicinity of Nikolskoe vill., Cape Vkhodnoy Reef; 3–4 – coast and floodplain of Gavanskaya River; 5 – sand dunes between Nikolskoe vill. and Lodyginskaya River; 6 – vicinity of Northwest rookery; 7 – North rookery; 8–9 – vicinity of Staraya Gavan' Bay; 10 –Buyan Bay and floodplain of Buyan River; 11 – Poludennaya Bay; 12 – Podutesnaya Bay; 13 – Toporkov Island; 14 – vicinity of airport and floodplain of Kamenka River; 15 – Commander Bay. in Materials to the rove beetles fauna (Coleoptera: Staphylinidae) of the Commander Islands (Kamchatka Region, Russia)
Рис. 1. Пункты сбора Staphylinidae на острове Беринга и острове Топорков. 1 – с. НикоΛьское; 2 – окрестности с. НикоΛьское, мыс ВхоΑной Риф; 3–4 – берег и пойма р. Гаванская; 5 – песчаные Αюны межΑу с. НикоΛьским и р. ΑоΑыгинская; 6 – окрестности Северо-ЗапаΑного Λежбища; 7 – Северное Λежбище; 8–9 – окрестности корΑона в бухте Старая Гавань; 10 – бухта Буян и пойма р. Буян; 11 – бухта ПоΛуΑенная, 12 – бухта ПоΑутесная; 13 – о. Топорков; 14 – окрестности аэропорта и поймы р. Каменка; 15 – бухта КоманΑор. Fig. 1. Localities of Staphylinidae on Bering and Toporkov islands. 1 – Nikolskoe vill.; 2 – vicinity of Nikolskoe vill., Cape Vkhodnoy Reef; 3–4 – coast and floodplain of Gavanskaya River; 5 – sand dunes between Nikolskoe vill. and Lodyginskaya River; 6 – vicinity of Northwest rookery; 7 – North rookery; 8–9 – vicinity of Staraya Gavan' Bay; 10 –Buyan Bay and floodplain of Buyan River; 11 – Poludennaya Bay; 12 – Podutesnaya Bay; 13 – Toporkov Island; 14 – vicinity of airport and floodplain of Kamenka River; 15 – Commander Bay.
FIGURE 5 in Morphology and sediment deformation of downslope Brasilichnium trackways on a dune slipface in the Nugget Sandstone of northeastern Utah, USA
FIGURE 5. Composite photograph of the track-bearing surface of DNM 490. The crests of wind ripples are evident, especially near the center of the image, and provide a good indication of the primary dip direction of the slope of the dune. Scale bars equal 10 cm. Center scale bar distorted by photo stitching process.
FIGURE 8. Transverse trackway from locality 490 in Morphology and sediment deformation of downslope Brasilichnium trackways on a dune slipface in the Nugget Sandstone of northeastern Utah, USA
FIGURE 8. Transverse trackway from locality 490, in sections. These are enlargements of sections of the composite photo in Figure 7. Sections do not overlap, but do abut one another. 1, left side of trackway (cf. with Figure 6) is the top section. 2, the next section in the trackway, adjacent to and to the right of Figure 8.1. 3, the next section in the trackway, adjacent to and to the right of Figure 8.2. Scale bars equal 5 cm.
FIGURE 12 in Morphology and sediment deformation of downslope Brasilichnium trackways on a dune slipface in the Nugget Sandstone of northeastern Utah, USA
FIGURE 12. Segment of the trackway along the right side of UUIC 1873 that shows closely spaced tracks. The location of this figure is indicated by the large rectangle in Figure 3. Note also the impressions of digits on two of the tracks and the smaller anterior platforms of the manus tracks immediately anterior to the pes tracks.
FIGURE 4 in Morphology and sediment deformation of downslope Brasilichnium trackways on a dune slipface in the Nugget Sandstone of northeastern Utah, USA
FIGURE 4. Distant and near views of locality DNM 490. 1, site as approached from the southeast. Arrow points to track bearing surface. 2, the track surface of 490 is the large bedding plane surface on the erosional remnant of Nugget Sandstone.
FIGURE 1. UUIC 1873 in Morphology and sediment deformation of downslope Brasilichnium trackways on a dune slipface in the Nugget Sandstone of northeastern Utah, USA
FIGURE 1. UUIC 1873, slab of Nugget Sandstone bearing multiple trackways. 1, the slab as it is exhibited in the halls of the Frederick Albert Sutton Building of the University of Utah in Salt Lake City. 2, image of the slab rotated 150o clockwise to show the trackways in their original orientation. Scale bars equal 10 cm.
FIGURE 11 in Morphology and sediment deformation of downslope Brasilichnium trackways on a dune slipface in the Nugget Sandstone of northeastern Utah, USA
FIGURE 11. Detail of a track from the downslope trackway along the right side of UUIC 1873. The location of this figure is indicated by the small rectangle in Figure 3. Note the anterior platform, the posterior, slumped depression, and the small space for the foot filled with lighter colored sand.
FIGURE 13 in Morphology and sediment deformation of downslope Brasilichnium trackways on a dune slipface in the Nugget Sandstone of northeastern Utah, USA
FIGURE 13. Reproduction of part of the photograph from Buss (1921). The original figure has been cropped to show only the Brasilichnium trackway and rotated 180o to show the tracks in what we interpret to be their original vertical orientation. No scale in photo, but based on Buss' description, the block is slightly less than 1 m.
FIGURE 10. Transverse trackway from locality 490 in Morphology and sediment deformation of downslope Brasilichnium trackways on a dune slipface in the Nugget Sandstone of northeastern Utah, USA
FIGURE 10. Transverse trackway from locality 490, in sections. These are enlargements of sections of the composite photo in Figure 7. Sections do not overlap, but do abut one another. 1, the next section in the trackway, adjacent to, and to the right of Figure 9.3. 2, the next section in the trackway, adjacent to and to the right of Figure 10.1. Scale bar equals 5 cm.
FIGURE 7 in Morphology and sediment deformation of downslope Brasilichnium trackways on a dune slipface in the Nugget Sandstone of northeastern Utah, USA
FIGURE 7. Composite image of the long transverse trackway at DNM 490 presented in 3 parts and the entire trackway. In each case, the trackway is oriented so that left (west) end is to top of page and upslope is to right of page. 1, left (west) end of the trackway. 2, section of the trackway adjacent to and to the right (east) of the section in Figure 7.1. 3, section of the trackway adjacent to and to the right (east) of the section in Figure 7.2. 4, the entire composite image of the trackway. Scale bars equal 10 cm.
FIGURE 6 in Morphology and sediment deformation of downslope Brasilichnium trackways on a dune slipface in the Nugget Sandstone of northeastern Utah, USA
FIGURE 6. Map of 490, based on composite photo in Figure 5. Scale bar equals 10 cm in 5 cm increments.
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