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54 results for “Fronds”
SBC LTER : Reef: Macrocystis pyrifera frond morphology at Mohawk Reef
These data describe the morphology of actively growing, surface-canopy fronds of the giant kelp Macrocystis pyrifera collected from the interior and edge of the kelp forest at Mohawk Reef near Santa Barbara, CA from May 2005 to April 2006. Included are values for the length, wet mass, stipe diameter, stipe mass, number of blades, and total blade mass of the midwater and canopy portion of each frond. These data were used by Stewart et al. (2009) to differences in growth, morphology and tissue C and N of M. pyrifera within and at the outer edge of a giant kelp forest.
Text-fig. 2. Scanning electron micrographs of non-angiosperm remains (a–d) and insect remains (e–f) from Zliv-Řídká Blana locality. a: Eopolytrichium sp. small leafy shoot, no. NM-F 3631; b: Taxon 1, single tip of a young fern frond with circinate vernation, no. NM-F 4130; c: Taxon 2, fern with simple leaves and circinate vernation, no. NM-F 3459; d: Pagiophyllum sp., small needle-like leaf, no. NM-F 4132; e: Microcarpolithes hexagonalis, a faecal pellet/coprolite with subcylindrical shape, no. NMF 4520; f: Palaeoaldrovanda splendens, pieces of compact walls formed by rectangular cells, no. NM-F 3237. in Plant Mesofossils From The Late Cretaceous Klikov Formation, The Czech Republic
Text-fig. 2. Scanning electron micrographs of non-angiosperm remains (a–d) and insect remains (e–f) from Zliv-Řídká Blana locality. a: Eopolytrichium sp. small leafy shoot, no. NM-F 3631; b: Taxon 1, single tip of a young fern frond with circinate vernation, no. NM-F 4130; c: Taxon 2, fern with simple leaves and circinate vernation, no. NM-F 3459; d: Pagiophyllum sp., small needle-like leaf, no. NM-F 4132; e: Microcarpolithes hexagonalis, a faecal pellet/coprolite with subcylindrical shape, no. NMF 4520; f: Palaeoaldrovanda splendens, pieces of compact walls formed by rectangular cells, no. NM-F 3237.
Data for: Frond orientations with independent current indicators demonstrate the reclining rheotropic mode of life of several Ediacaran rangeomorph taxa
<p>Fossils from the deep-sea Ediacaran biotas of Newfoundland are among the oldest architecturally complex soft-bodied macroorganisms on Earth. Most organisms in the Mistaken Point-type biotas of Avalonia — particularly the fractal-branching frondose Rangeomorpha — have been traditionally interpreted as living erect within the water column during life. However, due to the scarcity of documented physical sedimentological proxies associated with fossiliferous beds, Ediacaran paleocurrents have been inferred in some instances from the preferential orientation of fronds. This calls into question the relationship between frond orientation and paleocurrents. In this study, we present an integrated approach from a newly described fossiliferous surface (the "Melrose Surface" in the Fermeuse Formation at Melrose, on the southern portion of the Catalina Dome in the Discovery UNESCO Global Geopark) combining: (1) physical sedimentological evidence for paleocurrent direction in the form of climbing ripple cross lamination, and (2) a series of statistical analyses based on modified polythetic and monothetic clustering techniques reflecting the circular nature of the recorded orientation of <em>Fractofusus</em> <em>misrai</em> specimens. This study demonstrates the reclining rheotropic mode of life of the Ediacaran rangeomorph taxon <em>Fractofusus</em> <em>misrai</em> and presents preliminary inferences suggesting a similar mode of life for <em>Bradgatia</em> sp. and <em>Pectinifrons</em> <em>abyssalis</em> based on qualitative evidence. These results advocate for the consideration of an alternative conceptual hypothesis for the position of life of Ediacaran organisms in which they are interpreted as having lived reclined on the seafloor, in the position that they are preserved.</p>
Data for: Frond orientations with independent current indicators demonstrate the reclining rheotropic mode of life of several Ediacaran rangeomorph taxa
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SBC LTER: REEF: Frond Lifespans of the giant kelp Macrocystis pyrifera
These data describe the demography of 109 cohorts of giant kelp fronds on 194 tagged plants (1007 total fronds surveyed). Cohorts of fronds on tagged plants were followed monthly in three kelp forests near Santa Barbara, CA from April 2002 to June 2005. These data are useful for determining frond birth rates, death rates, lifespan and age structure.
Data from: Influence of bracken fronds and leaf litter management on soil seed bank characteristics in a fire-disturbed tropical montane forest
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Data from: Anatomical and ontogenetic reassessment of the Ediacaran frond Arborea arborea and its placement within total group Eumetazoa
Organisms in possession of a frondose body plan are amongst the oldest and most enigmatic members of the soft‐bodied Ediacaran macrobiota. Appraisal of specimens from the late Ediacaran Ediacara Member of South Australia reveals that the frondose taxon Arborea arborea probably possessed a fluid‐filled holdfast disc, the size and form of which could vary within populations. Mouldic preservation of internal anatomical features provides evidence for tissue differentiation, and for bundles of tubular structures within the stalk of the organism. These structures connect in a fascicled arrangement to individual lateral branches, before dividing further into individual units housed on those branches. The observed fascicled branching arrangement, which seemingly connects individual units to the main body of the organism, is consistent with a biologically modular construction for Arborea, and raises the possibility of a colonial organization. In conjunction with morphological characters previously recognized by other authors, including apical‐basal and front‐back differentiation, we propose that to the exclusion of all alternative known possibilities, Arborea can be resolved as a total group eumetazoan.
FIGURE 30. Diplazium simplicivenium Holttum. A, frond. B, a in Revision of the fern genus Diplazium (Polypodiales: Athyriaceae) in Thailand
FIGURE 30. Diplazium simplicivenium Holttum. A, frond. B, a part of pinnule with sori. C, scale showing toothed and black marginal cells. P. Pongkai 94 (BCU).
FIGURE 3. Diplazium bantamense Blume. A, frond with proliferus. B, a in Revision of the fern genus Diplazium (Polypodiales: Athyriaceae) in Thailand
FIGURE 3. Diplazium bantamense Blume. A, frond with proliferus. B, a part of pinna with sori. C, scale showing toothed and black marginal cells. P. Pongkai 62 (BCU).
FIGURE 21. Diplazium petelotii Tardieu. A, frond. B, a in Revision of the fern genus Diplazium (Polypodiales: Athyriaceae) in Thailand
FIGURE 21. Diplazium petelotii Tardieu. A, frond. B, a part of pinna with sori. C, scale showing toothed and not black marginal cells. Pételot 542 bis (P01449498).
Figure 24 in Nereidid polychaetes (Annelida) inhabiting the inside of decaying fronds of the mangrove palm Nypa fruticans in a tropical estuary in Malaysia, with special reference to the life history of the dominant species, Namalycastis sp.
Figure 24. Seasonal change in average salinity and temperature at six sites in Setiu Wetlands, Terengganu, in Malaysia (a), rainfall amount recorded at Bukit Berangan, Setiu, based on data from CHIRPS (Funk et al. 2019) (b), during the sampling period from September 2015 to September 2016.
Figure 21 in Nereidid polychaetes (Annelida) inhabiting the inside of decaying fronds of the mangrove palm Nypa fruticans in a tropical estuary in Malaysia, with special reference to the life history of the dominant species, Namalycastis sp.
Figure 21. Seasonal change in size–frequency histogram of mean diameters of coelomic oocytes of Namalycastis sp. collected from six sites in Setiu Wetlands, Terengganu in Malaysia via seven samplings in the period from September 2015 to September 2016. n: number of females examined.
Figure 19 in Nereidid polychaetes (Annelida) inhabiting the inside of decaying fronds of the mangrove palm Nypa fruticans in a tropical estuary in Malaysia, with special reference to the life history of the dominant species, Namalycastis sp.
Figure 19. Seasonal change in mean body width of females, males, and individuals with sex unknown in pooled samples of Namalycastis sp. collected from six sites in Setiu Wetlands, Terengganu, in Malaysia via seven samplings in the period from September 2015 to September 2016.
Figure 16 in Nereidid polychaetes (Annelida) inhabiting the inside of decaying fronds of the mangrove palm Nypa fruticans in a tropical estuary in Malaysia, with special reference to the life history of the dominant species, Namalycastis sp.
Figure 16. Relationship between body width and body length of 277 complete specimens of Namalycastis sp. collected from September 2015 to September 2016 at six sites in Setiu Wetlands, Terengganu in Malaysia (Table 1).
Figure 7 in Nereidid polychaetes (Annelida) inhabiting the inside of decaying fronds of the mangrove palm Nypa fruticans in a tropical estuary in Malaysia, with special reference to the life history of the dominant species, Namalycastis sp.
Figure 7. Namalycastis sp., NSMT-Pol 113582 (4.2 mm BW, 200 mm BL) collected at Station 4 on 27 November 2015 (a, e, g); NSMT-Pol 113583 (2.5 mm BW, 250 mm BL) collected at Station 3 on 27 November 2015 (b–d); and UMT-Ann 1816 (2.6 mm BW, incomplete) collected from Station 2 on 27 November 2015 (f). (a) Sesquigomph spiniger in upper neurochaetae in posterior body. (b) Heterogomph spiniger with finely serrated blade in lower neurochaetae, chaetiger 5. (c) Heterogomph spinigers having blade with coarse serrations proximally in posterior body. (d) Heterogomph falciger with finely serrated blade, chaetiger 5. (e) Heterogomph falciger with finely serrated blade in posterior body. (f) Heterogomph falcigers having blade with coarse serrations proximally, chaetiger 200. (g) Heterogomph falcigers with finely serrated blade (f), and additional thin sesquigomph spinigers (epitokal chaetae) (ep) located at bottom position of lower neurochaetae in posterior body. Scale bars: a–e, g = 0.1 mm; f = 0.01 mm.
Figure 8 in Nereidid polychaetes (Annelida) inhabiting the inside of decaying fronds of the mangrove palm Nypa fruticans in a tropical estuary in Malaysia, with special reference to the life history of the dominant species, Namalycastis sp.
Figure 8. Percentage distribution of the number of sesquigomph spinigers in upper neurochaetae at chaetiger 35 in nine ranks of body size of Namalycastis sp. collected from Setiu Wetlands, Terengganu, Malaysia. A total of 229 specimens collected from six sites from September 2015 to September 2016 were examined. The number at the top of each bar is the number of individuals examined.
Figure 13 in Nereidid polychaetes (Annelida) inhabiting the inside of decaying fronds of the mangrove palm Nypa fruticans in a tropical estuary in Malaysia, with special reference to the life history of the dominant species, Namalycastis sp.
Figure 13. Perinereis aibuhitensis. (a) UMT-Ann 2191. Dorsal view of anterior end with everted proboscis. (b, c) NSMT-Pol 113581: (b) ventral view of anterior end with everted proboscis; (c) heterogomph falciger in upper neurochaetae, chaetiger 4. Scale bars: a, b = 1 mm; c = 0.01 mm.
Figure 4 in Nereidid polychaetes (Annelida) inhabiting the inside of decaying fronds of the mangrove palm Nypa fruticans in a tropical estuary in Malaysia, with special reference to the life history of the dominant species, Namalycastis sp.
Figure 4. Namalycastis sp., a specimen (UMT-Ann 1741; 4.1 mm BW, 180 mm BL) collected at Station 2 on 27 November 2015. (a) Whole body, dorsal view. (b) Anterior end, dorsal view. (c) Posterior end, dorsal view. (d) Pair of jaws, dorsal view. (e) Parapodium of chaetiger 10, posterior view. (f) Parapodium of chaetiger 65, posterior view. (g) Parapodium of chaetiger 93, posterior view. (h) Parapodium of chaetiger 111, posterior view. (i) Parapodium of chaetiger 142, posterior view. (j) Parapodium of chaetiger 166, posterior view. Scale bars: a = 5 mm; b, c = 1 mm; d–j = 1 mm.
Figure 1 in Nereidid polychaetes (Annelida) inhabiting the inside of decaying fronds of the mangrove palm Nypa fruticans in a tropical estuary in Malaysia, with special reference to the life history of the dominant species, Namalycastis sp.
Figure 1. Landscape of sampling sites in Setiu Wetlands, Terengganu, in Malaysia. (a) Mangrove trees of the palm Nypa fruticans, fringing a slender lagoon on 25 June 2015. (b) Collection of nereidid worms by tearing apart the decaying fronds of Nypa fruticans at Station 1 on 6 August 2015.
Figure 22 in Nereidid polychaetes (Annelida) inhabiting the inside of decaying fronds of the mangrove palm Nypa fruticans in a tropical estuary in Malaysia, with special reference to the life history of the dominant species, Namalycastis sp.
Figure 22. Relationship between the body width of ovigerous females and the mean oocyte diameter in Namalycastis sp. collected from six sites in Setiu Wetlands, Terengganu, in Malaysia via seven samplings in the period from September 2015 to September 2016.
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Allen Brain Atlas
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International Brain Laboratory public data
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OpenNeuro
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