387 research outputs found
Bennett Reimer Papers
No full textBennett Reimer (born 1932), a wind player, music educator and noted author, held the John W. Beattie Endowed Chair in Music position at Northwestern University where he was Chair of Music Education Department, Director of the Ph.D Program in Music Education, and founder and Director of the Center for the Study of Education and the Musical Experience.The collection consists of published books and accompanying materials, unpublished works, journal articles, guest lecture materials and drafts of speeches given by Reimer, and materials related to books Reimer published for Silver-Burdett Music. This collection is unprocessed; an inventory is available upon request
Antipathozoanthus hickmani Reimer & Fujii 2010, sp. n.
No full textAntipathozoanthus hickmani sp. n. urn:lsid:zoobank.org:act: BC6BFB57-105C-4EC4-AEF4-87CC8B33DBDE Figures 1, 5, 7, 9, Tables 1, 2, 3 Etymology. Named after Dr. Cleveland Hickman, Jr., who graciously invited the first author to the Galápagos, and collected the first specimens of this new species. Noun in the genitive case. Material examined. Type locality: Ecuador, Galapagos: Floreana I., La Batielle, 1.2904°S 90.4989°W. Holotype: Specimen number MHNG-INVE-67495. Colony of approximately 40 polyps connected by well-developed coenenchyme on two branches of Antipathes galapagensis Diechmann, 1941 branches. Both branches approximately 7 cm long. Polyps approximately 1.5–4.0 mm in diameter, and approximately 1.0–6.0 mm in height from coenenchyme. Coenenchyme covers branches of antipatharian. Polyps and coenenchyme sand encrusted, cream-yellow in color. Collected from La Batielle, Floreana I., Galapagos, Ecuador, at 31.4 m by A. Chiriboga (AC), March 13, 2007. Preserved in 99.5% ethanol. Paratypes (all from Galapagos, Ecuador): Paratype 1. Specimen number CMNH-ZG 05883. Collected from Roca Onan, Pinzon I., at 27 m by AC, March 14, 2007. Figure ļ. Antipathozoanthus hickmani sp. n. in situ in the Galapagos. a holotype MHNG-INVE-67495 showing the entire colony covering an Antipathes galapagensis, with living antipatharians visible in the background. Image by Angel Chiriboga (AC) b specimen MISE 441 at Don Ferdi, Bainbridge Rocks, Santiago I., at 23 m by JDR, March 9, 2007 c and d specimen MISE 474, Roca Onan. Pinzon I., at 35 m by AC. All scale bars: 1 cm except in a (10 cm). Paratype 2. Specimen number USNM 1134064. Collected from Cousins Rock, at 28 m by James D. Reimer (JDR), March 10, 2007. Other material (all from Galapagos, Ecuador): MISE 03-221, Cousins Rock, at 12 m by AC on October 9, 2003; MISE 03-539, Cousins Rock, at 20 m by CH on November 11, 2003; MISE 03-549, Cousins Rock, at 23 m by CH on November 11, 2003; MISE 04-341, Elizabeth Bay, Isabela I., at 25 m by G. Edgar (GE) on December 2, 2003; MISE 440, Don Ferdi, Bainbridge Rocks, at 22 m by JDR, March 9, 2007; MISE 441, Don Ferdi, Bainbridge Rocks, at 23 m by JDR, March 9, 2007; MISE 444, Cousins Rock, Galapagos, Ecuador, at 21 m JDR, March 10, 2007; MISE 474, La Batielle, Floreana I., at 35 m by AC, March 14, 2007. Sequences. See Table 1. Description. Size: Polyps in situ approximately 4–12 mm in diameter when open, and approximately 4–15 mm in height. Morphology: Antipathozoanthus hickmani has approximately 40 bright yellow and/ or red tentacles, with long red, yellow, or cream-colored polyps that extend well clear of the coenenchyme (Figure 1). Tentacles are almost always longer than the expanded oral disk diameter. Cnidae: Basitrichs and microbasic p-mastigophores (often difficult to distinguish), holotrichs (large and medium), spirocysts (see Table 2, Figure 9). Table ļ. Examined zoanthid specimens for new species from the Galapagos Islands, and GenBank Accession Numbers. NA = not available or data not acquired. aSpecimens with the designations such as 03-560 are from 2001-2004 surveys (see Reimer et al. 2008b). Other specimens are from 2007 and have either specimen numbers (e.g. 471) in JDR’s collection, or museum type specimen numbers as given. Abbreviations: USNM: National Museum of Natural History, Smithsonian Institution, Washington, D.C., USA, CMNH: Chiba Prefectural Natural History Museum, Japan, MHNG: Natural History Museum of Geneva, Switzerland, MISE: Molecular Invertebrate Systematics and Ecology Laboratory, University of the Ryukyus, Nishihara, Okinawa, Japan. bLatitude and longitude values that are negative represent South and West values respectively, while positive values (latitude only) represent North values. cCollector abbreviations: CH = C. Hickman, Jr., LV = L. Vinueza, AC = A. Chiriboga, GE = G. Edgar, JDR = JD Reimer, RP = R. Pepolas, FL = F. Liss, BR = B. Riegl, DR = D. Ruiz, FR = F. Riveiria, OB = O. Breedy, MV = M. Vera. Differential diagnosis. Differs from Antipathozoanthus macaronesicus (Ocaña & Brito, 2004) (with regards to distribution; Galapagos as opposed to Cape Verde), coloration (no red or cream colors observed in A. macaronesicus), substrate (Antipathes galapagensis as opposed to Tanacetipathes cavernicola Opresko, 2001). Other morphologically similar and undescribed zoanthids (epizoic on antipatharians, similar sizes, yellowish in color) have been recorded from Madagascar and Japan (specimens in JDR’s collection), although these other specimens were found on different antipatharian species than Antipathozoanthus hickmani, and were never red or cream in color. Antipathozoanthus hickmani is the only zoanthid in the Galápagos found on living Antipathes galapagensis (Table 3). Habitat and distribution. All collected samples from Galapagos were on the black coral Antipathes galapagensis, at depths of 12 m to 35 m. Although A. galapagensis is found throughout the archipelago, Antipathozoanthus hickmani colonies were observed only at Santiago, Floreana, Isabela and Pinzon Islands, and it may be that this genus has a patchy distribution in the Galápagos. A. hickmani is potentially also found at Isla del Coco (Costa Rica) on the same antipatharian species, based on Museo de Zoologia, University of Costa Rica specimen UCR 827, although this has yet to be confirmed with detailed examinations. Biology and associated species. Antipathozoanthus hickmani may cover only a portion of a living Antipathes galapagensis black coral colony, or cover the entire colony, suggesting this species may be parasitic. Some A. hickmani specimens were found on completely dead A. galapagensis colonies or branches. Notes. Previously mentioned in Reimer et al. (2008b, 2010) and Hickman (2008) as Parazoanthus sp. G1.Published as part of Reimer, James & Fujii, Takuma, 2010, Four new species and one new genus of zoanthids (Cnidaria, Hexacorallia) from the Galapagos Islands, pp. 1-36 in ZooKeys 42 (42) on pages 6-14, DOI: 10.3897/zookeys.42.378, http://zenodo.org/record/57665
Terrazoanthus onoi Reimer & Fujii 2010, sp. n.
No full text<i>Terrazoanthus onoi</i> sp. n. <p>urn:lsid:zoobank.org:act: 429212C7-BC17-4ECC-BC66-85465AFE7C83</p> <p>Figures 3, 5, 6, 8, 9, Tables 1, 2, 3</p> <p> <b>Etymology.</b> This species is named in honor of Dr. Shusuke Ono, who introduced the first author to zoanthids and has played a major role in zoanthid research in Japan. Noun in the genitive case.</p> <p> <b>Material examined.</b> <i>Type locality</i>: Ecuador, Galapagos: Espanola I., Anchorage, 1.3646°S 90.2953°W.</p> <p> <i>Holotype</i>: MHNG-INVE-67496. Colony on rock, approximately 3.0 × 6.0 cm. Total of approximately 130 polyps connected by well-developed coenenchyme. Polyps approximately 1.0–3.0 mm in diameter, and approximately 0.5–2.0 mm in height from coenenchyme. Polyps and coenenchyme encrusted with sand, tissue of polyps and coenenchyme dark brown in color. Collected from Anchorage, Espanola I., Galapagos, Ecuador, at low tide line, collected by AC, March 12, 2007. Preserved in 99.5% ethanol.</p> <p> <i>Paratypes</i> (all from Galapagos, Ecuador):</p> <p>Paratype 1. Specimen number CMNH-ZG 05885. Glynn’s Reef, Darwin I., at 13 m, collected by FL and AC, March 8, 2007.</p> <p>Paratype 2. Specimen number USNM 1134066. Whale Rock, San Cristobel I., at 21 m, collected by JDR, March 12, 2007.</p> <p> <b>Other material</b> (all from Galapagos, Ecuador): MISE 02-59, Punta Vincente Roca, Isabela I., at 9 m, collected by CH, May 20, 2002; MISE 03-46, Punta Vincente Roca, Isabela I., at 2 m, collected by CH, January 16, 2003; MISE 03-135, Roca Onan, Pinzon I., depth not available, collected by L. Vinueza (LV), January 20, 2003; MISE 03-566, Punta Espejo, Marchena I., at 9 m, collected by CH, November 12, 2003; MISE 03-641, Punta Vincente Roca, Isabela I., depth not available, collected by CH, November 15, 2003; MISE 04-140, La Botella, Floreana I., at 8 m, collected by AC, February 8, 2004; MISE 04-343, Caleta Iguana, Isabela I., depth not available, collected by GE, December 3, 2004; MISE 04-345, Caleta Iguana, Isabela I., at 8 m, collected by CH, December 3, 2004; MISE 04-346, Elizabeth Bay, Isabela I., at 25 m, collected by GE, December 2, 2004; MISE 04-347, Elizabeth Bay, Isabela I., at 13 m, collected by CH, December 2, 2004; MISE 467, Gardner, Floreana I., 14 m, collected by JDR and CH, March 13, 2007; MISE 469, Devil’s Crown, Floreana I., 12 m, collected by JDR and MV, March 13, 2007; MISE 473, La Botella, Floreana I., at 12–15 m, collected by AC, March 13, 2007; MISE 475, Roca Onan, Pinzon I., 8 m, collected by AC, March 14, 2007</p> <p> <b>Sequences.</b> See Table 1.</p> <p> <b>Description.</b> <i>Size</i>:</p> <p>Polyps are approximately 4–12 mm in diameter when open, and rarely more than 20 mm in height. Colonies may reach sizes of over a meter in diameter.</p> <p> <i>Morphology</i>: <i>Terrazoanthus onoi</i> has bright red or red-brown oral disks and the outer surface of polyps is tan to dark brown, with polyps relatively clear of the coenenchyme. <i>T. onoi</i> has 32 to 40 tentacles that are almost as long as the diameter of the expanded oral disk (Figure 3).</p> <p> <i>Cnidae</i>: Basitrichs and microbasic p-mastigophores (often difficult to distinguish), holotrichs (large, medium, and small), spirocysts (see Table 2, Figure 9).</p> <p> <b>Differential diagnosis.</b> In the Galápagos, <i>Terrazoanthus onoi</i> differs from <i>Parazoanthus darwini</i> and <i>Antipathozoanthus hickmani</i> by substrate preference (rock as opposed to sponges and anthipatharians, respectively), as well as from <i>Terrazoanthus sinnigeri</i> sp. n. (below) by both color (bright red as opposed to brown, white or transparent) and habitat ecology (exposed rock surfaces as opposed to under rocks and rubble). In addition, <i>T. onoi</i> is bigger (oral disk diameter and polyp height) than <i>T. sinnigeri</i>, and forms much larger colonies (Table 3). <i>T. onoi</i> commonly has only basitrichs and microbasic p-mastigophores in its pharynx, and no large or small holotrichs at all, unlike <i>T. sinnigeri</i> (Table 2).</p> <p>Phylogenetically, <i>Terrazoanthus onoi</i> is very closely related to <i>T. sinnigeri</i>, with identical COI and mt 16S rDNA sequences, but consistently differs by four base pairs in ITS-rDNA, and forms a clade separate from <i>T. sinnigeri</i>.</p> <p>An extensive literature search revealed no other described Parazoanthidae species from the Pacific that are non-epizoic and bright red in color. An undescribed zoanthid species inhabiting rock and coral reef substrata from Indonesia often referred to as “yellow polyps” (<i>sensu</i> Sinniger et al. 2005) is likely also a <i>Terrazoanthus</i> sp., but is distinct from <i>T. onoi</i> in terms of color and distribution, and is phylogenetically different.</p> <p> <b>Habitat and distribution.</b> Specimens of <i>Terrazoanthus onoi</i> were found on rock substrate in areas of high current (i.e., the base of large rocks, rock walls, etc.). Colonies were found at Darwin, Marchena, Genovesa, Isabela, Pinzon, Española, and Floreana Islands, and it is likely <i>T. onoi</i> is found throughout the archipelago. This species has been found from the low infra-littoral to depths of over 35 m, and is likely to be at even deeper depths.</p> <p> <b>Biology and associated species.</b> Found on the top surfaces of rocks and biogenic non-living substrate, <i>Terrazoanthus onoi</i> is often found close to sponges, seaweed, and oth- er benthos, but is not epizoic and does not have an association with any particular species.</p> <p> <b>Notes.</b> Previously mentioned in Reimer et al. (2008b, 2010) and Hickman (2008) as <i>Parazoanthus</i> sp. G3, except for specimen MISE 02-27 mentioned below.</p> <p>It should be noted that specimen MISE 02-27 was found to have an ITS-rDNA sequence inconsistent with other <i>Terrazoanthus onoi</i> specimens (Figure 6), although other data (morphology, mt 16S rDNA and COI data) fit well with <i>T. onoi</i>. For these reasons, this specimen has not been conclusively assigned to <i>T. onoi</i> or to the other new <i>Terrazoanthus</i> species below. These results indicate there may be other <i>Terrazoanthus</i> species in the Galápagos that await discovery and description.</p>Published as part of <i>Reimer, James & Fujii, Takuma, 2010, Four new species and one new genus of zoanthids (Cnidaria, Hexacorallia) from the Galapagos Islands, pp. 1-36 in ZooKeys 42 (42)</i> on pages 20-23, DOI: 10.3897/zookeys.42.378, <a href="http://zenodo.org/record/576650">http://zenodo.org/record/576650</a>
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Marine04 marine radiocarbon age calibration, 0-26 cal kyr BP
No full textNew radiocarbon calibration curves, IntCal04 and Marine04, have been constructed and internationally ratified to replace the terrestrial and marine components of IntCal98. The new calibration data sets extend an additional 2000 yr, from 0-26 cal kyr BP (Before Present, 0 cal. BP = AD 1950), and provide much higher resolution, greater precision, and more detailed structure than IntCal98. For the Marine04 curve, dendrochronologically-dated tree-ring samples, converted with a box diffusion model to marine mixed-layer ages, cover the period from 0-10.5 call kyr BR Beyond 10.5 cal kyr BP, high-resolution marine data become available from foraminifera in varved sediments and U/Th-dated corals. The marine records are corrected with site-specific C-14 reservoir age information to provide a single global marine mixed-layer calibration from 10.5-26.0 cal kyr BR A substantial enhancement relative to IntCal98 is the introduction of a random walk model, which takes into account the uncertainty in both the calendar age and the C-14 age to calculate the underlying calibration curve (Buck and Blackwell, this issue). The marine data sets and calibration curve for marine samples from the surface mixed layer (Marine04) are discussed here. The tree-ring data sets, sources of uncertainty, and regional offsets are presented in detail in a companion paper by Reimer et al. (this issue)
Intcal04 Terrestrial Radiocarbon Age Calibration, 0–26 Cal Kyr BP
No full textA new calibration curve for the conversion of radiocarbon ages to calibrated (cal) ages has been constructed and internationally ratified to replace IntCal98, which extended from 0–24 cal kyr BP (Before Present, 0 cal BP = AD 1950). The new calibration data set for terrestrial samples extends from 0–26 cal kyr BP, but with much higher resolution beyond 11.4 cal kyr BP than IntCal98. Dendrochronologically-dated tree-ring samples cover the period from 0–12.4 cal kyr BP. Beyond the end of the tree rings, data from marine records (corals and foraminifera) are converted to the atmospheric equivalent with a site-specific marine reservoir correction to provide terrestrial calibration from 12.4–26.0 cal kyr BP. A substantial enhancement relative to IntCal98 is the introduction of a coherent statistical approach based on a random walk model, which takes into account the uncertainty in both the calendar age and the 14 C age to calculate the underlying calibration curve (Buck and Blackwell, this issue). The tree-ring data sets, sources of uncertainty, and regional offsets are discussed here. The marine data sets and calibration curve for marine samples from the surface mixed layer (Marine04) are discussed in brief, but details are presented in Hughen et al. (this issue a). We do not make a recommendation for calibration beyond 26 cal kyr BP at this time; however, potential calibration data sets are compared in another paper (van der Plicht et al., this issue).Additional co-authors: Thomas P Guilderson, Alan G Hogg, Konrad A Hughen, Bernd Kromer, Sturt Manning, Christopher Bronk Ramsey, Ron W Reimer, Sabine Remmele, John R Southon, Minze Stuiver, Sahra Talamo, FW Taylor, Johannes van der Plicht, Constanze E Weyhenmeye
Age model of sediment core MVSEIS08_TG-2 from Gulf of Cadiz
No full textFor AMS 14C ages, approximately 10 mg of planktonic foraminifera species (Globigerina bulloides, Globigerinoides ruber-white, Globorotalia inflata, Globigerina falconensis, Globorotalia truncatulinoides and Orbulina universa) were picked in the fraction >150 or >250 μm. AMS radiocarbon ages were calibrated using the Calib program (Stuiver and Reimer, 1993) on-line version 6.0 (http://calib.qub.ac.uk) and the Marine09 calibration data (Reimer et al., 2009). Between 0 and 10.5 cal ka BP the Marine09 dataset is based on the Intcal09 tree-ring data that was converted with an ocean - atmosphere box diffusion model to yield ocean mixed-layer ages (Hughen et al., 2004). Beyond 10.5 kyr it uses marine coral and varve data with a mean global reservoir correction of 405 years (Reimer et al., 2009)
Age model of sediment cores GC-01A from Gulf of Cadiz
No full textFor AMS 14C ages, approximately 10 mg of planktonic foraminifera species (Globigerina bulloides, Globigerinoides ruber-white, Globorotalia inflata, Globigerina falconensis, Globorotalia truncatulinoides and Orbulina universa) were picked in the fraction >150 or >250 μm. AMS radiocarbon ages were calibrated using the Calib program (Stuiver and Reimer, 1993) on-line version 6.0 (http://calib.qub.ac.uk) and the Marine09 calibration data (Reimer et al., 2009). Between 0 and 10.5 cal ka BP the Marine09 dataset is based on the Intcal09 tree-ring data that was converted with an ocean - atmosphere box diffusion model to yield ocean mixed-layer ages (Hughen et al., 2004). Beyond 10.5 kyr it uses marine coral and varve data with a mean global reservoir correction of 405 years (Reimer et al., 2009)
POSSIBLE SUPERFINE AND HYPERFINE ROVIBRATIONAL STRUCTURES FOR FULLERENE ISOTOPOMERS AND DOPANTS: EXTREME SYMMETRY BREAKING EFFECTS
No full textW. G. Harter and T. C. Reimer Chem. Phys. Lett. 194 230 (1992).Author Institution: Department of Physics, University of Arkansas; Physics Department, Angelo State UniversityThe possible point symmetries of the various fullerene molecular structures range from icosahedral symmetry, which is the highest molecular point symmetry possible, through a multitude of lower symmetries including (most often) none at all. One per-cent natural abundance of Carbon-13 means about balf the sixty-Carbon fullerences have completely lost their extraordinary rotational symmetry. Also, since Carbon-12 nuclei are spin-0 a sixty-Carbon-12 fullerene is a perfect `Bose-Einstein ball’ which excludes all but scalar rovibronic symmetry states, but even one extra Carbon-13 completely breaks the Bose exclusion. The effects of isotopic and other types of doping on fullerene rovibrational levels is explored. A tensor model for centrifugal distortion is used to see the effects of doping on the rotational level fine structure. In spite of the extreme symmetry breaking there is still considerable order and near-degeneracy in the rotational spectrum. A semi-classical rotational energy surface picture helps to explain the structure. At the other extreme is the sixty-Carbon-13 molecule, a monstrous `Fermi-Dirac ball’ which is compared to sulfur hexafluoride. However, the hyperfine structure of the latter is dwarfed by the former which has over an octillion of nuclear spin . Perhaps they might be considered in the search for quantum computing elements
A marine reservoir correction database and on-line interface.
No full textCalibration is essential for interpretation of radiocarbon dates, especially when the (super 14) C dates are compared to historical or climatic records with a different chronological basis. (super 14) C ages of samples from the marine environment, such as shells or fish bones, or samples with a marine component, such as human bone in coastal regions, require an additional consideration because of the reservoir age of the ocean. While the pre-industrial global mean reservoir correction, R(t), is about 400 years, local variations (Delta R) can be several hundred years or more. Delta R compilations on a global scale have been undertaken previously (Stuiver et al. 1986; Stuiver and Braziunas 1993), but have not been updated recently. Here we describe an on-line reservoir correction database accessed via mapping software. Rather than publishing a static Delta R compilation, new data will be incorporated when it becomes available. The on-line marine reservoir correction database can be accessed at the website http://www.calib.org/
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