131,463 research outputs found
Brycon costaricensis Angulo & Gracian-Negrete 2013
No full text5) Brycon costaricensis Angulo & Gracian-Negrete, 2013; Bryconidae. Costa Rican Machaca, Machaca, Macabi Tetra; Machaca, Sábalo, Sabalete, Machaca del Atlántico, Machaca de Costa Rica (Fig. 4A–B). New record for the Bebedero River basin; previous records of the species in Costa Rican freshwaters were restricted to Atlantic drainages. Basis of the record: Eight specimens were captured in the río Corobicí, near Palmira, Cañas, Guanacaste (10.55285, -85.09607), at 208 m. a.s.l., on May 2, 2021, by Jorge San Gil and Arturo Angulo; an additional specimen was captured in an artificial (irrigation) canal (Canal Oeste) on the Cañas-Upala road, Cañas, Guanacaste (10.47837, -85.13624), at 60 m. a.s.l., on May 2, 2021, by Pablo Morales, Jorge San Gil, Susana Gutiérrez and Arturo Angulo.Additional records on the region (including the Bebedero and Corobicí Rivers) were confirmed by artisanal and sport anglers.Published as part of Angulo, Arturo, 2021, New records and range extensions to the Costa Rican freshwater fish fauna, with an updated checklist, pp. 1-72 in Zootaxa 5083 (1) on page 13, DOI: 10.11646/zootaxa.5083.1.1, http://zenodo.org/record/580063
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Angulo NO del patio interior del palacio de las columnas, después de restaurado
No full textREPROGRAFIA. I.O. En el anverso: "Las Ruinas de Mitla. Angulo N.O del patio interior del Palacio de las Columnas. Es propiedad copyrighted C.B. Waite Foto. Ciudad de México" "(Lám. 14) MITLA.- Angulo NO del patio interior del palacio de las columnas, depués de restaurado." I.O. En el reverso: "XLVIII-66". V.F. 356382
Brycon costaricensis Angulo & Gracian-Negrete 2013
No full text<p> <i>Brycon costaricensis</i> Angulo & Gracián-Negrete 2013 (Fig. 6M). Costa Rican Machaca, Machaca, Macabí Tetra; Machaca, Sábalo, Sabalete, Machaca del Atlántico, Machaca de Costa Rica</p> <p> <b>Vouchers:</b> UCR 0265-002 (1), 0268-001 (47), 0457-002 (54), 0461-010 (91), 0551-003 (1), 1051-018 (21), 1052-024 (5), 1055-004 (60), 1059-001 (1), 1065-007 (1), 1068-001 (1), 1086-001 (2), 3115-003 (1) and 3122-006 (1); FMNH 5916 (2), 5917 (2), 5918 (3), 6221 (2) and 85034 (10); LSUMZ 15304 (1); other collections:ANSP 124131 (4), 124139 (3), CAS 61398 (2), 61516 (3), 61758 (2), IBUNAM 13685 (1), LACM 2468 (1), TU 202736 (6), UMMZ 165773 (1), 188127196933 (1), 196934 (1), 196940 (1), 196941 (1), 199621 (1), 199632 (1), 199642 (1), 199644 (1), 199655 (1), 204005 (1) and 204012 (1). <b>Distribution:</b> Central America; from northern Nicaragua to northeastern Costa Rica, Atlantic drainages; <b>(Nicaragua)</b> Pr, GM, KP, Es, BF, IM, To, Sa, SJ, RF and LN (Atlantic); 5–420 masl; Pri, Pot. <b>Occurrence and conservation status:</b> Nat; LC (2020), population trend stable. <b>Literature:</b> Meek (1907: 109, as <i>Brycon dentex</i> Günther 1860 —misidentification; brief description, including an identification key, and information on distribution and ecology), Fowler (1923: 26, as <i>Brycon guatemalensis</i> Regan 1908 —misidentification; brief description, including information on distribution), Astorqui (1975: 89, as <i>B. guatemalensis</i> —misidentification; brief description, including illustrations and an identification key, and information on distribution and ecology), Villa (1982: 103, as <i>B. guatemalensis</i> —misidentification; detailed description, including illustrations and an identification key, and information on distribution and ecology), Bussing (1998: 92, as <i>B. guatemalensis</i>, in part—misidentification; brief description,including illustrations and an identification key, and information on distribution, with a map, and ecology), González-Alemán (2006: 41, as <i>B. guatemalensis</i> —misidentification; brief description, including an illustration, and information on distribution and ecology), Gros & Miguel-Frithz (2010: 97, as <i>B. guatemalensis</i> —misidentification; brief description, including illustrations, and information on distribution and ecology, plus indigenous science and ethnoichthyology), Angulo & Gracián-Negrete (2013: 255; original description), van den Berghe (2015: 36, as <i>B. guatemalensis</i> —misidentification; listed, including an illustration and information on distribution and ecology) and Angulo (2021: 25; listed, including information on distribution).</p>Published as part of <i>Angulo, Arturo, Betts, Joel T., González-Alemán, Néstor J., Castañeda, Edgar, Berghe, Eric Van Den, Elías, Diego J., Mcmahan, Caleb D. & Matamoros, Wilfredo A., 2023, Continental fishes of Nicaragua: diversity, distribution and conservation status; with an annotated and illustrated checklist of species and an identification guide to families, pp. 1-89 in Zootaxa 5376 (1)</i> on page 20, DOI: 10.11646/zootaxa.5376.1.1, <a href="http://zenodo.org/record/10208788">http://zenodo.org/record/10208788</a>
Lessingianthus pubescens M. B. Angulo and Dematteis 2014, sp. nov.
No full textLessingianthus pubescens M.B. Angulo and Dematteis, sp. nov. (Fig. 1). Type:― PARAGUAY. Boquerón: Lolila, 50 km S del cruce Loma Plata con Ruta Trans-Chaco, 27 February 1991, R. Vanni, A. Radovanicich & A. Schinini 2418 (holotype CTES!, isotypes G!, C!). Vernonia glabrata var. puberula Chodat (1902: 304). Type:― PARAGUAY. Central: “L’Assomption, dans les champs en friche,” February 1874, B. Balansa 778 (lectotype G!, designated by Ramella et al. 2009; isolectotypes P!, S!) Vernonia oxyodonta auct. non Malme: Cabrera & Klein (1980: 301–302). Diagnosis:― Lessingianthus pubescens has a certain resemblance with L. glabratus, from which it differs by its 60–70 florets per capitulum (vs. 35–40 in L. glabratus), subulate phyllaries (vs. acuminate), sharply denticulate at the leaf margin (vs. serrate or denticulate), laxly pubescent (vs. glabrous or laxly pubescent) on the abaxial surface of leaves. Erect shrub up to 1.5 m tall. Stem single, slightly pubescent or glabrous, up to 6 mm in diameter, leafy up to the synflorescence, internodes 1–2 cm long. Leaves subsessile, coriaceous, 12–13 × 2.5–4 cm. Leaf blades lanceolate, acute at apex, attenuate basally, sharply denticulate at the margin, scabrous above, laxly pubescent beneath, pinnatinervate, secondary veins prominent above. Capitula sessile or subsessile, grouped on seriate-cymose branches. Bracts of the synflorescence leafy, alternate to the heads, gradually reduced upwards, longer than the heads. Involucre ovoidcampanulate, 8–10 mm high. Phyllaries in 4–6 series, brownish, loosely imbricate, appressed, subulate at the apex, glabrous to pubescent at the apex, inner phyllaries linear-lanceolate, outer ones lanceolate. Florets violet, 60–70 per head. Corollas 12–14 mm long, lobes lanceolate, glabrous.Anthers sagittate, thecae 3–3.5 mm long, apical appendages ovate, 0.8 mm long. Styles 14–14.5 mm long, branches linear, 4 mm long. Cypselas turbinate, ribbed, sligthly sericeous, 2.8–3.5 mm long. Pappus biseriate, white, inner bristles 6–7 mm long, outer scales lanceolate, fimbriate, 0.6–0.8 mm long. Pollen grains (type B) prolate-spheroidal, (P/E=1.01), tricolporate, echinolophate, 53.0 (54.7) 55.7 µm in diameter, spines 2.5–4 µm long, and lacunae 9.5 (10.6) 12.2 µm. 2n=128 (Dematteis 1997). Etymology:―The specific epithet refers to indumentum type of the leaves. Habitat and distribution:― Lessingianthus pubescens is common in Paraguay and rare in south of Brazil, in Santa Catarina and Río Grande do Sul, growing on different soils. Phenology:―Flowering and fruiting take place between October to May. Additional specimens examined:― PARAGUAY. Alto Paraná: Alto Paraná, 1910, K. Fiebrig 53 (G). Amambay: Colonia San Luis, 43 km N of route 5, road to Bella Vista, 13 December 1997, M. Dematteis & A. Schinni 876 (CTES, G). Caaguazú: ruta 2 a 5 km de Caaguazú, 8 February 1966, A. Krapovickas et al. 12198 (CTES, LP); 10–15 km N of Caaguazú, 19 February 1994, T. M. Pedersen 16080 (CTES, G, SI). Central: San Lorenzo, Ciudad Universitaria, November 1982, E. Bordas 1936 (CTES). Concepción: route 5, 28 km W of Concepción, 17 May 1974, A. Schinini 9067 (CTES). Misiones: Estancia La Soledad, 3 km of Santiago, 3 February 1988, A. Shinini & R. Vanni 26089 (CTES). Cordillera: Cerro Tobaty, March 1972, A. Schinini 4421 (CTES, G); Emboscada, December 1986, E. Bordas 1237 (CTES); Acosta Ñu, 4 km de Ytororo, hacia el rio Paraguay, 16 October 1994, A. Krapovickas et al. 45653 (CTES). San Pedro: 36 km al N de San Estanislão, 8 February 1968, A. Krapovickas et al. 13964 (CTES, LP). BRAZIL: Rio Grande do Sul: Livramento, Morro Armour, 26 March 1976, N. I. Matzenbacher 484 (ICN). Santa Catarina: Mun. Uribici, rodovia Uribici-Urupema, 9 February 2007, G. Hatschbach & O.S. Ribas 79798 (CTES). Discussion:― Lessingianthus pubescens has been treated in the flora of Paraguay (Cabrera et al. 2009) under the name V. oxyodonta Malme. A detailed analysis of the type material (Malme 1901, holotype S!) showed that this specimen has all the morphological characteristics of L. glabratus (Less.) H.Rob. and, consequently, it should be treated as a synonym of this species name. Therefore, the description of a new species that includes all specimens formerly placed under V. oxyodonta except for its type was necessary. Although Vernonia glabrata var. puberula Chodat has priority at the rank of variety, a new name may be used at the rank of species according to the International Code of Botanical Nomenclature (ICBN) Art. 11.2 (McNeill et al. 2012).Published as part of Angulo, Maria Betiana & Dematteis, Massimiliano, 2014, A new species and a new combination in the South American genus Lessingianthus (Vernonieae, Asteraceae), pp. 207-214 in Phytotaxa 186 (4) on pages 208-210, DOI: 10.11646/phytotaxa.186.4.4, http://zenodo.org/record/514708
Ryhiner-Kartensammlung / 6/B Plan du chateau de Catania
No full textUrsprungswerk: "Description de l'isle de Sicile" / Pierre del Callejo y Angulo (Amsterdam : Wetstein et Smith, 1734
Figure 3 in Acoustic signals, species diagnosis, and species concepts: the case of a new cryptic species of Leptodactylus (Amphibia, Anura, Leptodactylidae) from the Chapare region, Bolivia
No full textFigure 3. Advertisement call of Leptodactylus coca sp. nov. A, sequence of ten calls. B, one of these calls at higher resolution. C, section of call in (B) showing detail of waveform. D, power spectrum of (B). E, spectrogram of the first three calls in (A). Modified from Angulo (2004).Published as part of Angulo, Ariadne & Reichle, Steffen, 2008, Acoustic signals, species diagnosis, and species concepts: the case of a new cryptic species of Leptodactylus (Amphibia, Anura, Leptodactylidae) from the Chapare region, Bolivia, pp. 59-77 in Zoological Journal of the Linnean Society 152 (3) on page 66, DOI: 10.1111/j.1096-3642.2008.00447.x, http://zenodo.org/record/468766
Ryhiner-Kartensammlung / 7/B Plan de la ville de Trapano
No full textSüdorientiertUrsprungswerk: "Description de l'isle de Sicile" / Pierre del Callejo y Angulo (Amsterdam : Wetstein et Smith, 1734
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