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40 results for “laurel”
Survey of Alarka Laurel and Rich Mountain Red Spruce (Picea rubens) Overstory, Saplings, and Seedlings in western North Carolina in 2007, 2022, and 2023
In the southern Appalachians, disjunct red spruce (Picea rubens) populations persist at low latitudes at elevations above 1,370 m. However, research on the condition of these disjunct red spruce populations is limited. This study compared baseline health, recruitment, and stand dynamics of two of the southern-most red spruce populations in eastern North America, the Rich Mountain and Alarka Laurel spruce bog basins in Nantahala National Forest, North Carolina. We collected data on overstory (DBH>10 cm), saplings (DBH< 10 cm, and height >2 m), and seedlings (height<10 cm) from Alarka Laurel in 2007 and 2022. Data from Rich Mountain were collected in 2023. We used 10-m wide belt transects noted the species and diameter at breast height (DBH) of overstory species, counted and noted the DBH of red spruce saplings, and counted and noted the height of red spruce seedlings. In 2022 and 2023, we gave a health score from 0-3 for all three categories of trees (overstory, saplings, and seedlings), with 0 being dead and 3 being healthy with little to no signs of disease or stress. Overall, both stands did not yet appear affected by climatic warming, despite the southern latitude and relatively low elevation. Our findings reveal that red spruce is the dominant overstory species, comprising an average of 25.6% of all measured overstory trees, with seedlings and saplings making up 72.8% of the red spruce population, indicating sustainable recruitment. Red spruce basal area declined by 13.9% from 2007 to 2022 in Alarka Laurel, with a concomitant increase in some hardwood species. However, both Alarka Laurel and Rich Mountain showed high levels of sapling and seedling recruitment. Overall, red spruce trees are healthy, particularly seedlings, representing the healthiest age category. Our results suggest the stands are relatively stable and provide essential baseline data for monitoring of forest conditions in the context of intensifying climate change. This research contributes to b
3D Archaeological Greek Pottery: MHNC-UP-020060, Gnathian cup-skyphos, Laurel Spray Group
<p><strong>This 3D dataset is related to the publication</strong>:</p> <ul> <li>Moitinho de Almeida, V. (2023). "<a href="https://www.researchgate.net/publication/353038967_Contributions_of_3D_digital_methods_and_techniques_to_the_study_of_ancient_pottery">Contributions of 3D digital methods and techniques to the study of ancient pottery</a>". In <em>Myths, Gods, and Heroes. Greek vase collections in Portugal / Mitos, Deuses e Heróis. As coleções de vasos gregos em Portugal</em>. R. Morais, R. Centeno, D. Ferreira (eds.). Câmara Municipal de Santa Maria da Feira - Museu Convento dos Lóios; Reitoria da Universidade do Porto; Faculdade de Letras da Universidade do Porto; Imprensa da Universidade de Coimbra. Pp.269-291. (ISBN: 978-989-8183-25-5)</li> </ul> <p>3D processed dataset for object MHNC-UP-020060 in the Museu de História Natural e da Ciência da Universidade do Porto (MHNC-UP), Portugal. <strong>CC BY-NC-SA 4.0 license</strong>.</p> <p>MHNC-UP-020060 is a Gnathian cup-<em>skyphos</em>, Laurel Spray Group, dating from c. 330 BCE and unknown provenance (Rocha Pereira & Morais, 2007; Morais, 2019; Morais et al., 2021).</p> <p><strong>Aims</strong>: 3D digital documentation; morphological characterization; technological and functional analysis of archaeological Greek pottery.</p> <p><strong>Data acquisition</strong>: at the MHNC-UP, with a portable non-contact structured white light scanner, Breukmann smartSCAN3D-HE, equipped with stereo colour cameras at 250 mm FOV. Additional metadata included in associated spreadsheet.<br><strong>Data processing</strong>: 24 scans aligned and merged. MHNC-UP-020060_3D01.ply: non-manifold edges, self-intersections, small components, and small tunnels in the mesh automatically fixed, noise data removed; orientation and position normalised. MHNC-UP-020060_3D01-holesFilled.ply: holes filled for calculation of material density, filling volume, and centre of mass. Additional metadata included in associated spreadsheet.</p> <p>Access to the MHNC-UP-020060 was granted by the MHNC-UP.</p> <p>When citing this material: please include the original inventory ID (MHNC-UP-020060) reference to the physical object.</p>
FIGURE 7 in New discovery of rhyncholites and conchorhynchs (cephalopod jaw elements) from the Upper Cretaceous Mount Laurel Formation of Delaware
FIGURE 7. Conchorhynchus sp. from the Mount Laurel Formation, Delaware. A–C, AMNH 137097. D–F, AMNH 137101. G, K, O, AMNH 137102. H, I, J, AMNH 13710. L, M, N, AMNH 137103. Scale bar = 2 mm.
FIGURE 8 in New discovery of rhyncholites and conchorhynchs (cephalopod jaw elements) from the Upper Cretaceous Mount Laurel Formation of Delaware
FIGURE 8. Eutrephoceras sp. from the Mount Laurel Formation, Delaware. A–C, AMNH 137092. D–F, AMNH 137093. G–I, AMNH 137094. Scale bar = 5 mm.
FIGURE 10 in New discovery of rhyncholites and conchorhynchs (cephalopod jaw elements) from the Upper Cretaceous Mount Laurel Formation of Delaware
FIGURE 10. Results of principal component analysis using the six parameters L, W, H, Ls, Ws, Lh, and β. The original data are from preciously published papers (Till, 1909; Van Der Tuuk, 1985; Riegraf and SchmittRiegraf, 1995; Komarov, 2005a, 2005b; Košťák et al., 2010; Weaver et al., 2012)
FIGURE 9 in New discovery of rhyncholites and conchorhynchs (cephalopod jaw elements) from the Upper Cretaceous Mount Laurel Formation of Delaware
FIGURE 9. Linear measurements of our specimens from the Mount Laurel Formation plotted together with those from the Cretaceous and Paleogene published in previous studies (Till, 1909; Van Der Tuuk, 1985;
FIGURE 6 in New discovery of rhyncholites and conchorhynchs (cephalopod jaw elements) from the Upper Cretaceous Mount Laurel Formation of Delaware
FIGURE 6. Conchorhynchus sp. from the Mount Laurel Formation, Delaware. A–C, AMNH 137086. D, H, I, AMNH 137095. E–G, AMNH 137123. J, K, L, AMNH 137087. M, P, Q, AMNH 137096, N, O, R, AMNH 137099. S, T, U, AMNH 137098. Scale bar = 2 mm.
FIGURE 1. Locality and stratigraphy. A in New discovery of rhyncholites and conchorhynchs (cephalopod jaw elements) from the Upper Cretaceous Mount Laurel Formation of Delaware
FIGURE 1. Locality and stratigraphy. A, collection locality of rhyncholites and conchorhyncs. B, stratigraphic column of an adjacent locality including the Mount Laurel Formation from which our specimens were collected (modified after Kennedy and Cobban, 1994).
Insect herbivory for Catula gettyi, a late Cretaceous laurel from Utah, USA
<p class="Body">The Upper Cretaceous (Campanian Stage) Kaiparowits Formation of southern Utah, USA, preserves abundant plant, invertebrate, and vertebrate fossil taxa. Taken together, these fossils indicate that the ecosystems preserved in the Kaiparowits Formation were characterized by high biodiversity. Hundreds of vertebrate and invertebrate species and over 80 plant morphotypes are recognized from the formation, but insects and their associations with plants are largely undocumented. Here, we describe a new fossil leaf taxon, <i>Catula gettyi </i>gen et. sp. nov. in the family Lauraceae from the Kaiparowits Formation. <i>Catula gettyi</i> occurs at numerous localities in this deposit that represent ponded and distal floodplain environments. The type locality for <i>C. gettyi</i> has yielded 1,564 fossil leaf specimens of this species, which provides the opportunity to circumscribe this new plant species. By erecting this new genus and species, we are able to describe ecological associations on <i>C. gettyi </i>and place these interactions within a taxonomic context<i>. </i>We describe an extensive archive of feeding damage on <i>C</i>.<i> gettyi</i> caused by herbivorous insects, including more than 800 occurrences of insect damage belonging to five functional feeding groups indicating that insect-mediated damage on this taxon is both rich and abundant. <i>Catula gettyi</i> is one of the best-sampled host plant taxa from the Mesozoic Era, a poorly sampled time interval, and its insect damage is comparable to other Lauraceae taxa from the younger Late Cretaceous Hell Creek Flora of North Dakota, USA.</p>
Data and code for analyzing the spatiotemporal dynamics of laurel wilt in the southeastern US
<p>Data and code required to reproduce findings and figures from analyses of the spatiotemporal dynamics of laurel wilt in the southeastern United States.</p>
FIGURE 2 in New discovery of rhyncholites and conchorhynchs (cephalopod jaw elements) from the Upper Cretaceous Mount Laurel Formation of Delaware
FIGURE 2. Measured morphological characters in rhyncholites and conchorhynchs. Scale bars = 2 mm.
Insect herbivory for Catula gettyi, a late Cretaceous laurel from Utah, USA
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Data from: Dispensing pollen via catapult: explosive pollen release in mountain laurel (Kalmia latifolia)
The astonishing amount of floral diversity has inspired countless assumptions about the function of diverse forms and their adaptive significance; yet many of these hypothesized functions are untested. We investigated an often-repeated adaptive hypothesis about how an extreme floral form functions. In this study, we conducted four investigations to understand the adaptive function of explosive pollination in Kalmia latifolia, the mountain laurel. We first performed a kinematic analysis of anther movement. Second, we constructed a heat map of pollen trajectories in three-dimensional space. Third, we conducted field observations of pollinators and their behaviors while visiting K. latifolia. Finally, we conducted a pollination experiment to investigate the importance of pollinators for fertilization success. Our results suggest that insect visitation dramatically improves fertilization success and that bees are the primary pollinators that trigger explosive pollen release.
Laurel Grove Cemetery Angel
Angel sculptural marker from Laurel Grove Cemetery, Savannah, GA. Source: Objaverse 1.0 / Sketchfab
FIGURE 4 in A new species of South American whitefly (Sternorrhyncha: Aleyrodidae) colonising cultivated bay laurel
FIGURE 4. Aleuroplatus biluminiporus sp. nov. Thirdinstar larva with expanded detail of (top to bottom) cephalic seta, mesothoracic seta, abdominal margin, geminate pore / porette and vasiform orifice / eighth abdominal seta.
FIGURES 23 in A new species of South American whitefly (Sternorrhyncha: Aleyrodidae) colonising cultivated bay laurel
FIGURES 23. Aleuroplatus biluminiporus sp. nov. (2) Outlines of two puparia, with cephalic "eyespots", moulting sutures, vasiform orifice and caudal setae marked; (3) Detail of puparial venter.
FIGURE 1 in A new species of South American whitefly (Sternorrhyncha: Aleyrodidae) colonising cultivated bay laurel
FIGURE 1. Aleuroplatus biluminiporus sp. nov. Puparium with expanded detail of (A) margin & submargin, (B) vasiform orifice region, (C) caudal margin and setae, (D) subdorsal thickrimmed "bright" pores, (E) submedian geminate pore / porettes.
FIGURE 5 in A new species of South American whitefly (Sternorrhyncha: Aleyrodidae) colonising cultivated bay laurel
FIGURE 5 (A-G). Aleuroplatus biluminiporus sp. nov. A. Habitus photograph of puparium. B. Scanning electron micrograph (SEM) of puparial vasiform orifice, with operculum raised. C. SEM of first-instar larva, habitus position. D. SEM of first-instar larva, thoracic marginal flanges. E. SEM of first-instar larva, abdominal marginal projections. F. SEM of first-instar larva, vasiform orifice. G. SEM of a group of eggs.
FIGURE 13 in Anatomy and function of the penial twin papillae system of the Helicinae (Gastropoda: Helicoidea: Helicidae) and description of two new, small Hemicycla species from the laurel forest of the Canary Islands
FIGURE 13. Hemicycla fulgida sp. nov., paratype from El Bailadero (Tenerife). A. Spermatophore in the stalk of the bursa copulatrix complex. B. An undigested part of the spermatophore. C. Dart; bd, bursa duct; c, crown; d, diverticulum; st, stalk.
FIGURE 9. Shell body whorl details. A, B in Anatomy and function of the penial twin papillae system of the Helicinae (Gastropoda: Helicoidea: Helicidae) and description of two new, small Hemicycla species from the laurel forest of the Canary Islands
FIGURE 9. Shell body whorl details. A, B. Hemicycla fulgida sp. nov., holotype. C, D. Hemicycla invernicata. E, F. Hemicycla consobrina. A, C, E, dorsal view. B, D, F, frontal view.
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Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
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